food industry
در نشریات گروه پزشکی-
سابقه و هدف
صنعت غذا به عنوان یکی از صنایع کلیدی کشور، نیازمند تعامل موثر با دانشگاه ها برای ارتقای کیفیت محصولات و خدمات خود است. باتوجه به کمبود مطالعات در این زمینه، پژوهش کیفی حاضر با هدف شناسایی چالش ها و موانع همکاری بین دانشگاه و صنعت غذا از دیدگاه ذی نقشان و صاحب نظران این حوزه در کشور انجام شد.
مواد و روش هاجامعه آماری مطالعه شامل اعضای هیات علمی و صاحب نظران از سازمان های مختلف مرتبط با موضوع تحقیق از جمله دانشگاه ها، اداره استاندارد، سازمان غذا و دارو و صنعتگران حوزه غذا در سراسر کشور بود. روش انتخاب مشارکت کنندگان، نمونه گیری هدفمند و با حداکثر تنوع بود. تعداد 39 نفر در این مطالعه مشارکت داشتند. داده ها با روش مصاحبه نیمه ساختارمند جمع آوری شد و به روش تماتیک با استفاده از نرم افزار MAXQDA2020 تحلیل گردید.
یافته هاموانع تعامل دانشگاه و صنعت در چهار طبقه اصلی شامل چالش های فرهنگی و نگرشی، چالش های ساختاری و سازمانی، چالش های دانشی و مهارتی، و چالش های اقتصادی دسته بندی شدند. تعصبات و سوءتفاهم ها، تفاوت در دغدغه ها و رسالت دو نهاد، ضعف در زیرساخت ها، شکاف بین آموزش ها و پژوهش های دانشگاه با نیازهای صنعت، و تضاد منافع اقتصادی، از جمله در حوزه مالکیت فکری و تجاری سازی، از مهم ترین چالش هایی هستند که همکاری موثر بین این دو نهاد را با مشکل مواجه کرده اند.
نتیجه گیرییافته ها نشان می دهد که تقویت همکاری دانشگاه و صنعت مستلزم تغییرات اساسی در نگرش ها، زیرساخت ها و رویه ها است. برای دستیابی به این هدف، ضروری است سیاست گذاران و مدیران دانشگاه ها و صنایع بر کاهش تعصبات، تسهیل انتقال دانش و فناوری، تقویت پژوهش های مشترک و سرمایه گذاری در آموزش های کارآفرینی تمرکز کنند.
کلید واژگان: دانشگاه، صنعت غذا، همکاری، موانع، چالش ها، مطالعه کیفیBackground and ObjectivesThe food industry, as one of the country key industries, needs effective interaction with universities to improve the quality of its products and services. Regarding lack of studies in this area, this qualitative study aimed to identify challenges and obstacles to collaborations between universities and the food industry from the perspective of stakeholders and experts in this field in Iran.
Material and methodsThe study population consisted of faculty members and experts from various organizations linked to the research topic, including universities, the Standard Organization, the Food and Drug Administration, and food industry professionals across the country. Participants were selected using purposeful sampling technique with maximum diversity. Totally, 39 participants were involved in the study. Data were collected through semi-structured interviews and analyzed thematically using MAXQDA 2020 software.
ResultsThis study identified four major categories of barriers hindering university-industry interactions as cultural and attitudinal, structural and organizational, knowledge and skill, and economic challenges. Prejudices and misunderstandings, differences in priorities and missions, infrastructure weaknesses, gaps between academic education and research and industry needs, and conflicts of economic interests, including in the areas of intellectual characteristics and commercialization, are the most important challenges that delay effective collaborations between these two entities.
ConclusionThe findings reveal that strengthening university-industry collaborations necessitates fundamental changes in attitudes, infrastructure and practices. To achieve this goal, it is critical that policymakers and managers in universities and industries focus on decreasing biases, facilitating knowledge and technology transfer, strengthening collaborative studies and investing entrepreneurship education.
Keywords: University, Food Industry, Collaboration, Barriers, Challenges, Qualitative Study -
Health-related food policies, such as taxes on unhealthy food and drink, can act as catalysts for food industry to take action which may or may not align with the policy goal of improving population health. This commentary discusses the framework proposed by Forde et al in analysing the food industry marketing responses to the Soft Drink Industry Levy (SDIL), implemented in the United Kingdom in 2018. We suggest and discuss ways which may help broaden the use of the framework to other relevant policies. This includes widening the framework to cover strategies that may have not come up within the SDIL context but have been studied in other contexts. It would also be important to consider interactions between the strategies and with external factors influencing company decisions. Going forward, comprehensive evaluations of health-related policies should consider likely interactions with industry marketing strategies to fully understand potential impacts.
Keywords: Food Industry, Marketing, Policy, Sugar, Tax -
Background In recent years, interactions between nutrition professionals (NPs) and the food industry, such as sponsorship arrangements, have raised concerns, particularly as these may negatively impact the trustworthiness and credibility of the nutrition profession. This study aimed to map the literature and identify knowledge gaps regarding interactions between NPs and industry. We sought to examine the nature of such interactions and NPs perspectives about these, as well as the risks and solutions.Methods We conducted a scoping review according to a pre-registered protocol, searching eight electronic databases and grey literature sources in March 2021 to identify documents for inclusion. Two independent reviewers screened citations for inclusion and conducted data extraction. Quantitative and qualitative syntheses were conducted.Results We identified 115 documents for analysis, published between 1980 to 2021, with a majority from the United States (n = 59, 51%). Only 32% (n = 37) were empirical studies. The food industry was the most frequent industry type discussed (n = 91, 79%). We identified 32 types of interactions between NPs and industry, such as continuing education provided by industry and sponsorship of professional bodies and health and nutrition organizations. The financial survival of nutrition organizations and continuing education access for NPs were the most frequently cited advantages of industry-NPs interactions. On the other hand, undermining public trust, NPs credibility and public health nutrition recommendations were pointed out as risks of these interactions. Following a code of ethics, policies, or guidelines was the most frequently proposed solution for managing these interactions.Conclusion Despite the increasing attention given to this issue, few empirical papers have been published to date. There is a need for more research to better and systematically document industry interactions with NPs and the impacts associated with these, as well as more research on effective management strategies.
Keywords: Food Industry, Conflict of Interest, Dietitian, Nutritionist, Nutrition Professionals -
Background
Shiftwork among industrial workers can lead to poor sleep quality, which in turn is related to occupational fatigue. This study aimed to predict the sleep quality of industrial workers with rotating shifts based on occupational fatigue using structural equation modeling.
Material and MethodsThis descriptive study was conducted among 208 production line workers in a food industry of Alborz province, Iran, in the year 2022. Participants were selected by the census method. Data were collected using a demographic questionnaire, the Pittsburgh Sleep Quality Questionnaire (PSQI), and occupational recovery (OFER-15). Structural equation modeling (SEM) was used to investigate the association between the latent variables of occupation fatigue and sleep quality.
ResultsAbout 74% of workers in all three subscales (chronic, acute, and recovery) reported moderate or high fatigue. In seven subscales related to sleep quality, approximately 22.6-32.2% of workers in the subscales of subjective sleep quality, sleep latency, sleep duration, and daytime dysfunction reported poor or very poor quality. The results indicated a significant and negative association between occupational fatigue and the sleep quality of workers. The model presented in this study indicated that occupational fatigue could predict 22% of sleep quality among industrial workers (R2=0.22, β=-0.47, t-value=-4.37).
ConclusionsAccording to the results of structural association between latent variables, decreasing occupational fatigue could improve sleep quality among one-fifth of industrial workers. Therefore, identifying effective factors and corrective strategies for removing occupational fatigue plays an important role in promoting the sleep quality of rotating shift workers.
Keywords: Fatigue, Food Industry, Occupational, Shift Work, Sleep, Workers -
The COVID-19 pandemic has impacted positively and negatively a variety of industries, including the food industry [1-3]. Meanwhile, the food industry is more affected by this disease compared to other industries because of its wide relationship with the household and the community. Various places, such as restaurants, coffee shops, hotels, and schools were either closed during this period or did not provide services same as in the past. As a result, many blows were inflicted on such industries. The demand for food by households decreased during this period and caused a part of the food market to be lost [4]. Global average prices for a variety of food products increased by 2% to 9% with half of the tracked goods rising by 7% or more [5].
Keywords: Covid-19, Food industry, Pandemic, Economics -
مجله دانشکده بهداشت و انستیتو تحقیقات بهداشتی، سال بیست و یکم شماره 1 (پیاپی 81، بهار 1402)، صص 67 -82زمینه و هدف
پروبیوتیک یا همان محصولاتی که در تولید آنها از میکروارگانیزم های مفید بکاربرده می شود، سالیان اخیر توجه جامعه جهانی و به ویژه بخش سلامت و درمان را به خود جذب کرده اند. چرا که محصولات پروبیوتیک می توانند در درمان و ایمنی با سلامت بدن انسان کمک ویژه ای نمایند. و داروهای موجود در بازار عوارض جانبی متعددی را به همراه دارند. بدین ترتیب با توجه به اهمیت این محصولات هدف از انجام این پژوهش تبیین پیشران های توسعه کسب وکارهای صنعت پروبیوتیک در ایران می باشد.
روش کاردر پژوهش حاضر با استفاده از بررسی نقطه نظر خبرگان صنعت پروبیوتیک ایران که شامل متخصصین علوم تغذیه و پزشکی و فعالین کسب وکارهای پروبیوتیک می شود به جمع آوری مهمترین پیشران های توسعه کسب وکارهای صنعت پروبیوتیک در ایران با استفاده از روش تحلیل مضمون و بررسی اثر متغیرهای بدست آمده با بهره گیری از روش مدلسازی معادلات ساختاری با رویکرد حداقل مربعات جزیی پرداخته شده است.
نتایجنتیجه گردآوری و تجزیه و تحلیل داده ها نشان داد که محیط کلان و محیط خرد ارتباط مستقیمی با توسعه صنعت پروبیوتیک دارند. تاثیر محیط کلان با ضرایب 05/0> 033/0= p، 13/3= T در سطح اطمینان 95%، بر توسعه صنعت پروبیوتیک معنادار واقع شد. همچنین محیط خرد نیز با ضرایب 05/0> 001/0= p، 13/2= T در سطح اطمینان 95% بر توسعه صنعت پروبیوتیک تاثیر گذار است.
نتیجه گیریبدین ترتیب با توجه به بررسی های انجام شده می توان بیان داشت که توسعه صنعت پروبیوتیک از دو بخش محیط کلان و محیط خرد، تحت تاثیر قرار می گیرند. در بخش محیط کلان نیروهای سیاسی همچون دولت ها می توانند زمینه را برای توسعه این صنعت فراهم نمایند و در بخش خرد، کسب وکارها و فعالین نیز می توانند تاثیر گذار باشند.
کلید واژگان: صنعت پروبیوتیک، توسعه صنعت، صنایع غذاییBackground and AimProbiotics, or useful microorganisms tobtained from beneficial microorganisms, have attracted the attention of the world community, especially the health sector, in recent years. The reason is that probiotic products can help in treating diseases and strengthening the human body without any side effects, unlike drugs which may usually have many side effects. Considering the importance of these products, this study was conducted to find and explain the drivers of probiotic industry development in Iran's food industry.
Materials and MethodsData were collected, using the thematic analysis method, on the views of the experts of the probiotic industry in Iran, including experts in nutritional and medical sciences and probiotic producers, concerning the most important driving forces in the development of probiotic industry businesses in Iran. Based on the data the effects of the variables obtained were investigated using the structural equation modeling method with a partial least squares approach.
ResultsAnalysis of the data showed that the development of probiotics industry was statistically significantly related directly both to macro-environment (coefficients T=3.13, p=0.033<0.05; 95% confidence level) and micro-environment (coefficients of T=2.13, p=0.001<0.05; 95% confidence level).
ConclusionIt can be concluded that the development of the probiotic industry in Iran is influenced by both the macro-environment and the micro-environment. What can provide the basis for the development of this industry in the macro-environment and the micro-environment sectors is the political forces such as governments and the private sector, respectively.
Keywords: Probiotic Industry, Industry Development, Food Industry -
مقدمه
با توجه به رشد بالای صنعت شیرینی و شکلات و نقش آن در سلامت، در صورت عدم توجه به نوآوری، سلامت، ایمنی و بهداشت مواد غذایی جامعه مورد تهدید جدی قرار خواهد گرفت. بنابراین پژوهش حاضر با هدف ارایه الگوی شناختی مولفه های نوآوری در محصولات شیرینی و شکلات انجام گرفت.
مواد و روش کاراین مطالعه با ترکیب دو رویکرد سیستم های نرم و نگاشت شناختی فازی و در هفت مرحله در سال 1398 انجام گرفت. مراحل انجام پژوهش شامل کشف موقعیت مسیله ساز در چهار جناح فکری، درک موقعیت مسیله ساز و ارایه تصویر غنی شده از موقعیت، تحلیل کتوو و استخراج تعاریف ریشه ای از موقعیت مسیله ساز و عناصر کلیدی، شناسایی مولفه های موثر بر نوآوری و استخراج و ارایه مدل مفهومی با استفاده از نگاشت شناختی و در نهایت مقایسه مدل مفهومی با دنیای واقعی و ارایه پیشنهادات و انجام اقدامات مرتبط بودند.
یافته هامدل به دست آمده در این پژوهش، ابعاد و مفاهیم درگیر در نوآوری صنایع غذایی را نشان داده و ابزار مناسب جهت ارزیابی سیاست های مختلف به منظور حل مسیله پژوهش می باشد. یافته های حاصل از مطالعه نشان داد که این بنگاه ها نتوانسته اند سهم قابل توجهی در نوآوری محصول و نیز فرآیند در کل زنجیره ارزش و ایجاد ارزش افزوده در حوزه سلامت داشته باشند و از کمبودهای شدیدی در رنج هستند که مهمترین آن ها: عدم مهارت در کشف فرصت ها و خلق روش های جدید برای بهره برداری در کانون فرآیند نوآوری، عدم توانایی سازمان غذا و دارو و استاندارد در انجام روشی بهتر برای ایجاد انگیزه در تولید محصولات فراسودمند و سلامت محور و کنترل و نظارت مواد اولیه سالم و فرمولاسیون آن برای ایجاد مزیت رقابتی، عدم وجود همبستگی زیاد میان عملکرد بنگاه در بازار و توسعه محصولات با تعامل بیشتر با مشتریان از نظر طراحی، سفارشی سازی و کیفیت و ایمنی و بهداشت مواد غذایی می باشد. لذا بکارگیری مواد اولیه سلامت محور و ارگانیک، توجه به رژیم غذایی مناسب، تولید محصولات فراسودمند، استفاده از بسته بندیهای سلامت محور، فناوریهای جدید در جهت تولید محصولات سلامت محور، متخصصین تغذیه و سلامت در توسعه محصول جدید و حمایت دولت از تولیدکنندگان محصولات سلامت محور از مولفه های اصلی موفقیت نوآوری در صنعت غذایی هستند.
نتیجه گیریمدل ارایه شده نشان می دهد که ذینفعان در زنجیره ارزش حوزه شیرینی و شکلات ضمن کسب مهارت های لازم و توانمندسازی در حوزه سلامت می توانند با ایجاد و محوریت مراکز نوآوری سلامت فعالیت های خود را در یک زیست بوم نوآوری سلامت رشد و توسعه دهند. لذا در راستای اهداف این پژوهش، تاسیس مراکز نوآوری سلامت در حوزه شیرینی و شکلات جهت هم افزایی زنجیره ارزش با حمایت سازمان غذا و دارو ضروری به نظر می رسد.
کلید واژگان: نوآوری، صنایع غذایی، سلامت محور، بهداشت و ایمنی مواد غذایی، نگاشت شناختی فازیPayesh Journal, Volume:22 Issue: 5, 2023, PP 627 -637Objectiv (s):
Considering the high growth of the candy and chocolate industry and its role in public’s health, innovations need to focus on health, safety and food hygiene. Therefore, the current research was conducted with the aim of presenting a cognitive model of innovation components in confectionery and chocolate products.
MethodsA study was conducted by combining two approaches of soft systems methodology and fuzzy cognitive mapping in seven stages. These included providing an enriched image, analysis of CATWOE and root definitions, identifying the components affecting innovations and presenting a conceptual model using cognitive mapping. Finally we compared the conceptual model with the real world.
ResultsThe findings of the study showed that sweet and chocolate companies have not been able to make a significant contribution to innovations of the products as well as the process in the entire value chain and creating added value of health, and they are suffering from severe deficiencies. The most important problems identified were: the lack of skill in discovering opportunities and creating new methods for exploitation in the center of the innovation process, the inability of the Food and Drug and Standard Organizations to motivate the production of beneficial and health-oriented products, and the control and supervision of healthy raw materials and its formulation to create a competitive advantage, the lack of high correlation between the companies performance in the market and development of products with greater interaction with customers in terms of design, customization, quality and food safety and hygiene. Therefore, the use of health-oriented and organic raw materials, paying attention to proper diet, production of extra-profitable products, use of health-oriented packaging, new technologies for the production of health-oriented products, nutrition and health experts in the development of new products, and government support for the producers of health-oriented products are the main components of innovation success in the food industry.
ConclusionThe study finding suggest that stakeholders in the value chain of sweets and chocolates companies should grow and develop their activities in health innovations ecosystems.
Keywords: Innovation, Food Industry, health-oriented products, Food hygiene, safety, Fuzzy Cognitive Mapping -
مقدمه
مقاومت فزاینده و همه گیر نسبت به تمام آنتی بیوتیک های موجود و همچنین ریسک حاصل از کاربرد سایر عوامل میکروب کش، تحقیقات را به سمت جستجوی روش های ضد میکروبی تکمیلی و جدید سوق می دهد. اخیرا از پلاسمای سرد (Cold plasma) CP و نانوذرات، جهت گندزدایی میکروبی، ترمیم زخم ها و درمان سرطان استفاده می شود. هدف از مقاله ی حاضر، مروری بر بررسی خواص ضدمیکروبی، انواع روش های سنتز و تثبیت نانوذرات به همراه فناوری پلاسمای سرد اتمسفری و چگونگی اثرگذاری آن در غیر فعال سازی میکروارگانیسم های بیماری زا در صنایع غذایی و بخش های بالینی است.
روش هادر مطالعه ی مروری حاضر، از مقالات منتشر شده از سال 2011 تا 2023 و از پایگاه داده های اطلاعاتی علمی مانندGoogle Scholar, PubMed, ScienceDirect و Scopus استفاده شده است.
یافته هابا اثر عوامل موجود در پلاسمای سرد شامل گونه های فعال اکسیژن (Reactive oxygen species) ROS و نیتروژن (Reactive nitrogen speices) RNS، تابشUV و ذرات باردار می توان باکتری ها را غیرفعال کرد که در میان گونه های ROS موثر، می توان به ازون، سوپراکسید، پراکسید و غیره و بین گونه های RNS، نیتروژن اتمی و نیتروژن برانگیخته اشاره کرد. همچنین ذرات باردار را می توان به صورت مستقیم و غیرمستقیم برای مقاصد ضد میکروبی استفاده نمود.
نتیجه گیریاز پلاسمای سرد می توان برای بهبود سلامت مواد غذایی، نابودی بیوفیلم های باکتریایی، تخریب میکروارگانیسم های بیماری زا، غیرفعال سازی هاگ ها و همین طور غیرفعال کردن ویروس ها بهره برد. با وجود اثرات ذکر شده ی پلاسمای سرد و کم بودن آلودگی های پس از پردازش آن، باید برای پذیرش کامل آن، رویکردهای زیست محیطی و انسانی آن را نیز در کنار اثربخشی آن در نظر گرفت.
کلید واژگان: پلاسما، فارماکولوژی، بیوفیلم ها، صنایع غذاییBackgroundIncreasing widespread resistance in all available antibiotics, as well as the risk of using other germicidal agents, leads research to search for additional and new antimicrobial methods. Recently cold plasma (CP) and nanoparticles are used for microbial disinfection, wound healing and cancer treatment. The purpose of this article is to review the antimicrobial properties, various methods of synthesis and stabilization of nanoparticles along with cold plasma technology. Atmospheric and how it affects the inactivation of pathogenic microorganisms in the food industry and clinical departments.
MethodsIn the present review, articles published from 2011 to 2023 were used and scientific information databases such as Google Scholar, PubMed, ScienceDirect and Scopus have been used.
FindingsBacteria can be deactivated by the effect of agents in cold plasma including reactive oxygen species (ROS) and nitrogen (RNS), UV radiation and charged particles. Among the effective species of ROS, ozone, superoxide, peroxide, etc., and among the species of RNS, atomic nitrogen, and excited nitrogen can be mentioned. Also, charged particles can be used directly and indirectly for antimicrobial purposes.
ConclusionCold plasma can be used to improve the health of food, destroy bacterial biofilms, destroy pathogenic microorganisms, inactivate spores, and also deactivate viruses. In spite of the mentioned effects of cold plasma and the low pollution after its processing, for its full acceptance, its environmental and human approaches should be considered along with its effectiveness.
Keywords: plasma, Pharmacology, Biofilms, Food industry -
مقدمه
ارزیابی عملکرد ایمنی در یک محیط شغلی یکی از مهمترین گام ها در استقرار یک شرایط ایمنی بهینه در یک سازمان می باشد. این مطالعه با هدف ارزیابی عملکرد ایمنی در یک صنعت غذایی طراحی و انجام شده است.
روشاین مطالعه مقطعی در یک صنعت غذایی بزرگ و در سال 1400 انجام شده است. حجم نمونه در این مطالعه با استفاده از فرمول کوکران با دقت 05/0 برابر با 231 نفر محاسبه گردید. متغیرهای مورد مطالعه شامل دو گروه شاخص های عملکردی کنشی (آموزش ایمنی، ارزیابی و کنترل ریسک) و واکنشی (نوع بروز حوادث، شرایط و اعمال ناایمن) و همچنین شاخص نهایی عملکرد ایمنی بود. محدوده عددی این شاخص 2/0 تا 5 بود.
یافته هاشاخص عملکرد ایمنی نهایی در این صنعت غذایی برابر با 76/1 ارزیابی گردید. نتایج نشان داد میزان شش گروه شاخص عملکرد ایمنی در این صنعت به ترتیب ارزیابی ریسک (01/4)، کنترل ریسک (93/3)، آموزش ایمنی (85/3)، نوع بروز حوادث (47/2)، اعمال ناایمن و (17/2)، شرایط ناایمن (05/2) برآورد شد. بعلاوه، از بین 32 شاخص مورد ارزیابی ، کمترین و بیشترین شاخص به ترتیب مربوط به تجهیزات ناایمن (13/0) و استفاده از تجهیزات حفاظت فردی (09/2) بود.
نتیجه گیرییافته های مطالعه بیانگر این بود که میزان عملکرد ایمنی در این صنعت غذایی اگر چه نامطلوب نمی باشد، اما برای رسیدن به یک شاخص عملکرد ایمنی مطلوب بایستی در راستای شش گروه شاخص های مورد ارزیابی و 32 شاخص مورد سنجش، اقدمات کاربردی و سودمند طراحی و اجرا گردد.
کلید واژگان: ایمنی، ارزیابی عملکرد، صنعت غذایی، شاخص ایمنیIntroductionEvaluating safety performance in a work environment is one of the most important steps in establishing an optimal safety condition in an organization. This study was designed and conducted with the aim of evaluating safety performance in a food industry.
MethodThis cross-sectional study was conducted in a large food industry in 2021. The sample size in this study was calculated using Cochran's formula with an accuracy of 0.05 equal to 231 people. The studied variables included two groups of reactive (safety training, risk assessment and control) and reactive (type of accidents, unsafe conditions and acts) performance indicators, as well as the final safety performance index. The numerical range of this index was 0.2 to 5.0.
ResultsThe final safety performance index in this food industry was evaluated as 1.76. The results showed the amount of six groups of safety performance indicators in this industry respectively were estimated, risk assessment (4.01), risk control (3.93), safety training (3.85), type of accidents (2.47), unsafe acts and (2.17), unsafe conditions (2.05). In addition, among the 32 evaluated indicators, the lowest and highest indicators were related to unsafe equipment (0.13) and use of personal protective equipment (2.09), respectively.
ConclusionThe findings of the study indicated that although the level of safety performance in this food industry is not unfavorable, but in order to achieve a favorable safety performance index, practical and beneficial measures should be designed and implemented in line with the six groups of indicators and 32 indicators.
Keywords: safety, performance evaluation, food industry, safety index -
مقدمه
فاژها می توانند به عنوان عوامل کنترل کننده های زیستی در کاهش بار میکروبی موادغذایی و افزایش ماندگاری آن ها استفاده شوند. پایداری فاژها در برابر pH و دما، نقش مهمی در کاربردهای آن ها در صنایع غذایی دارد. این مطالعه به کاهش بار میکروبی گوشت آلوده شده به باکتری اشرشیاکلای در دو دمای 4 و 25 درجه و میزان مقاومت در برابر pH و حرارت در آن ها می پردازد.
روشپایداری باکتریوفاژ PhE19 در برابر حرارت و pH بررسی و دامنه فعالیت باکتریوفاژها در میزبان های مختلف ارزیابی شد. به منظور بررسی فعالیت ضدمیکروبی فاژ PhE19. 100 میکرولیتر از سوسپانسیون باکتری به همراه 100 میکرولیتر عصاره فاژی به نمونه گوشت اضافه و به مدت چهار روز در دمای 4 و 25 درجه بررسی شد.
یافته هامیکروسکوپ الکترونی نشان داد که فاژ جداشده دارای سر چند وجهی و دم انقباضی می باشد. دوره ی نهفتگی20 دقیقه بود. ارزیابی phE19 در برابر pH نشان داد در محدوده ی 12-4 فعال باقی می ماند. اما در طیف13 pH ≥ 3 pH ≤ فعالیت آن به زیر حد تشخیص می رسد. در دمای 30 تا 60 درجه 30 دقیقه پایدار بود. فاژ مورد مطالعه قابلیت کاهش بار میکروبی درگوشت در دمای 4 درجه دارد.
نتیجه گیریجهت استفاده از فاژها در صنایع اطلاعات درمورد پایداری در pH و دما می تواند در کاربرد آن ها در صنعت مفید باشد.
کلید واژگان: باکتریوفاژ، صنایع غذایی، نگهدارنده های زیستی، اشیرشیا کلایIntroductionPhages can be used as biological control agents to reduce microbial loads in food and extend its shelf life. The stability of phages against pH and temperature plays a crucial role in their application in the food industry. This study focused on the reduction of microbial load in meat contaminated with Escherichia coli at two temperatures (4°C and 25°C) and evaluated their resistance to pH and heat.
MethodsThe thermal and pH stabilities of the bacteriophage PhE19 were assessed, and its activity range was evaluated across different hosts. To examine the antimicrobial activity of PhE19, 100 µL of a bacterial suspension along with 100 µL of phage extract were added to meat samples and were monitored for four days at 4°C and 25°C.
ResultsElectron microscopy revealed that the isolated phage had a polyhedral head and a contractile tail. The latent period was 20 min. The evaluation of PhE19 against pH showed that it remained active within the range of 4–12, but its activity dropped below the detection limit at pH ≥ 13 and pH ≤ 3. It remained stable at temperatures between 30°C and 60°C for 30 min. The studied phages reduced the microbial load in meat at 4°C.
ConclusionUnderstanding the stability of phages at various pH levels and temperatures can enhance their application in the food industry.
Keywords: Bacteriophage, Food Industry, Biopreservatives, Escherichia Coli -
Background
Salmonella Typhimurium and Listeria monocytogenes are among the most important foodborne pathogens, and new methods to remove them from surfaces are useful. The aim of this study was to investigate the bactericidal effect of a combination of sodium dodecyl sulfate (SDS) and some food matrix-related factors such as temperature, salinity, acidity, and exposure time on L. monocytogenes and S. Typhimurium in suspension and on different food industry related surfaces.
MethodsThe bacterial strains were treated with different concentrations of SDS, citric acid, lactic acid, and NaCl at different temperatures at various times. At least one concentration was selected that caused one or less log reduction in the viability of each bacterium, and the combination treatments were examined in this regard. The best combination was then selected, and its bactericidal effect on the bacteria tested was evaluated on ceramic, stainless steel, and plastic surfaces.
ResultsThe results showed that the sensitivity of the bacteria studied to different disinfectants was different. L. monocytogenes was highly sensitive to SDS, while S. Typhimurium was relatively resistant to SDS. Both bacteria were more sensitive to lactic acid than to citric acid, and the bactericidal effects of the disinfectants were enhanced in the combined treatments at 45ºC compared to 35ºC treatments. The addition of NaCl to the SDS solution resulted in a strong reduction in the bactericidal effect of SDS. The selected disinfectant removed bacterial biofilms from stainless steel surfaces in a shorter time than ceramic and plastic surfaces.
ConclusionThe preparation of combined solutions using SDS and an organic acid at an appropriate concentration and temperature could be useful for removing or reducing bacterial biofilms. Therefore, the combination of SDS and the lactic acid at 45°C can effectively remove pathogenic bacteria from various surfaces.
Keywords: Disinfectant, Food industry, Listeria monocytogenes, Salmonella Typhimurium, Sodium dodecylsulfate -
According to Lacy-Nichols and Williams, the food industry is increasingly forestalling regulation with incremental concessions and co-option of policy-making discourses and processes; bolstering their legitimacy via partnerships with credible stakeholders; and disarming critics by amending their product portfolios whilst maintaining high sales volumes and profits. Their assessment raises a number of fundamental philosophical questions that we must address in order to form an appropriate public health response: is it appropriate to treat every act of corporate citizenship with cynicism? If voluntary action leads to better health outcomes, does it matter whether profits are preserved? How should we balance any short-term benefits from industry-led reforms against the longer-term risk stemming from corporate capture of policy-making networks? I argue for a nuanced approach, focused on carefully defined health outcomes; allowing corporations the benefit of the doubt, but implementing robust binding measures the moment voluntary actions fail to meet independently set objectives.Keywords: Commercial Determinants of Health, Health Policy, Food Industry, Big Food
-
In response to growing concerns about chronic diseases, food insecurity, low-wage food labor, and global warming, the food industry has developed new strategies to respond to its critics and pursue its business and political goals. As Lacy-Nicholas and Williams described in a recent review, the food industry has expanded its repertoire from opposition to critics to appeasement, co-option, and partnerships.1 Defining themselves as “part of the solution,” the food industry seeks to disarm its opponents, shift policy debates to favor its interests, or delay decisions that jeopardize its profits or power. This commentary explores how health professionals, can respond to this changing repertoire. Lessons from previous campaigns to control harmful industry practices,2 suggest that no single strategy will counter changing food industry efforts to achieve its goals. Thus, advocates must consider a portfolio of approaches that can be deployed in response to changing circumstances, industry tactics, and threats to health.Keywords: Food Policy, Food Industry, Commercial Determinants
-
BackgroundIn Sri Lanka, consumption of foods high in salt is high. Efforts are underway to tackle this issue, including the reformulation of fast foods to contain less salt. To succeed, understanding the practices in using salt among restaurant owners, cooks, and chefs are important. The objective of this study was to explore the challenges that may prevent the reformulation of foods to contain less salt in selected food premises in Sri Lanka.MethodsIn a qualitative study design using semi-structured interviews and focus groups as data gathering tools, food premises from ten districts in Sri Lanka were selected; while owners of food premises, chefs and cooks were the study population.ResultsThe study recognised several key themes related to the study objective including awareness and practices on salt use, ‘eating outside’ behaviour, dominance of experience when using salt, commercial vs. domestic use of salt and catering to the demand. Findings included both supportive and resistive perceptions and attitudes.ConclusionFears of competition and consumer demands may prevent restaurant owners, chefs and cooks from taking decisive steps towards lowering salt use. Training them on ways of lowering salt, while maintaining the appeal for foods and building trust on equitable implementation of salt lowering policies may win industry support. However, such efforts must parallel approaches to changing consumer behavior towards salt containing foods.Keywords: Diet, Salt, Reformulation, Food Industry, Sri Lanka
-
Ultrasonic methods are increasingly being used in the food industry for both food analysis and food modification. Ultrasound technology is relatively inexpensive, simple and cost-effective in terms of energy and time and is a non-destructive technique compared to other conventional technologies. The ultrasonic spectrum based on frequency and intensity is divided into two types, including low frequency (less than 100 kHz)-high-power (more than 1 W/cm2) ultrasound and high frequency (more than100 kHz) low-power (less than 1 W/cm2) ultrasound. The effect of ultrasound on various materials is caused by the formation, growth, and collapse of bubbles, which is referred to as cavitation. The ultrasonic spectrum based on frequency and intensity is divided into two types, including low frequency (less than 100 kHz)-high-power (more than 1 W/cm2) ultrasound and high frequency (more than 100 kHz) low-power (less than 1 W/cm2) ultrasound. Ultrasound applications in the food industry are very diverse. This review summarizes the major popular applications of low and high-power ultrasound in food science and technology.
Keywords: Ultrasound, Food industry, Meat product, Dairy product, Fruits, Vegetables -
In October 2019, the Mexican government reformed its General Health Law thus establishing the warning approach to front-of-pack nutrition labeling (FOPNL), and in March 2020, modified its national standard, revamping its ineffective FOPNL, one preemptively developed by industry actors. Implementation is scheduled for later in 2020. However, the new regulation faces fierce opposition from transnational food and beverage companies (TFBCs), including Nestlé, Kellogg, Grupo Bimbo, Coca-Cola, PepsiCo through their trade associations, the National Manufacturers, American Bakers Associations, the Confederation of Industrial Chambers of Mexico and ConMéxico. Mexico, as a regional leader, could tip momentum in favor of FOPNL diffusion across Latin America. But the fate of the Mexican FOPNL and the region currently lies in this government’s response to three threats of legal challenges by TFBCs, citing international laws and guidelines including the World Trade Organization (WTO), Codex Alimentarius, and the North American Free Trade Agreement (NAFTA)/US-Mexico-Canada Agreement (USMCA). In this perspective, we argue that these threats should not prevent Mexico or other countries from implementing evidence-informed policies, such as FOPNLs, that pursue legitimate public health objectives.Keywords: Food Industry, Nutrition Policy, International Trade, Mexico, Latin Countries
-
Enzymes are one of the main biocatalysts with various applications in the food industry. Stabilization of enzymes on insoluble carriers is important due to the low reuse, low operational stability, and high cost in applications. The immobility and the type of carrier affect the activity of the immobile enzyme. Hydrogels are three-dimensionally cross-linked macromolecular network structures designed from various polymers. Hydrogels can provide a matrix for an immobile enzyme due to their extraordinary properties such as high water absorbing capacity, carrier of bioactive substances and enzymes, biocompatibility, safety, and biodegradability. Therefore, this study mainly focuses on some enzymes (Lactase, Lipases, Amylases, Pectinase, Protease, Glucose oxidase) that are of special importance in the food industry. These enzymes could be immobilized in the hydrogels constructed of macromolecules such as kappa-carrageenan, chitosan, arabic gum, pectin, alginate, and cellulose. At last, in the preparation of these hydrogels, different enzyme immobilization methods in macromolecular hydrogels, and effect of hydrogels on enzyme activity were discussed.
Keywords: Hydrogels, Enzyme immobilization, Food industry -
The issue of public health and policy communities engaging with food sector companies has long caused tension and debate. Ralston and colleagues’ article ‘Towards Preventing and Managing Conflict of Interest in Nutrition Policy? An Analysis of Submissions to a Consultation on a Draft WHO Tool’ further examines this issue. They found widespread food industry opposition, not just to the details of the World Health Organization (WHO) tool, but to the very idea of it. In this commentary we reflect on this finding and the arguments for and against interacting with the food industry during different stages of the policy process. While involving the food industry in certain aspects of the policy process without favouring their business goals may seem like an intractable problem, we believe there are opportunities for progress that do not compromise our values as public health professionals. We suggest three key steps to making progress.Keywords: Nutrition, Health Governance, Conflict of Interest, Food Industry, Policy-Making
-
Background
For decades, the food industry has sought to deflect criticisms of its products and block public health legislation through a range of offensive and defensive strategies. More recently, food corporations have moved on to present themselves as “part of the solution” to the health problems their products cause. This strategic approach is characterised by appeasement, co-option and partnership, and involves incremental concessions and attempts to partner with health actors. This paper details how corporate practices have evolved and changed over the past two decades and gives some definition to what this new political economy signifies for the wider behaviours of corporations producing and selling harmful commodities.
MethodsThis paper draws on public health and political science literature to classify the food industry’s “part of the solution” strategy into three broad components: regulatory responses and capture; relationship building; and market strategies. We detail the key characteristics and consequences of each component.
ResultsThe three components of the food industry’s “part of the solution” strategy all involve elements of appeasement and co- option. They also improve the political environment and resources of the food industry. Regulatory responses offer incremental concessions that seek to maintain corporate influence over governance processes and minimise the threat of regulations; relationship building fosters access to health and government stakeholders, and opportunities to acquire and maintain channels of direct influence; and market strategies to make products and portfolios healthier bolster the market share and revenue of food corporations while improving their public image.
ConclusionRather being a signal of lost position and power, the food industry’s repositioning as “part of the solution” has created a highly profitable political economy of ‘healthy’ food production, alongside continued production of unhealthy commodities, a strategy in which it is also less burdensome and conflictual for corporations to exercise political power and influence.
Keywords: Food Industry, Corporate Power, Corporate Social Responsibility, Hegemony
- نتایج بر اساس تاریخ انتشار مرتب شدهاند.
- کلیدواژه مورد نظر شما تنها در فیلد کلیدواژگان مقالات جستجو شدهاست. به منظور حذف نتایج غیر مرتبط، جستجو تنها در مقالات مجلاتی انجام شده که با مجله ماخذ هم موضوع هستند.
- در صورتی که میخواهید جستجو را در همه موضوعات و با شرایط دیگر تکرار کنید به صفحه جستجوی پیشرفته مجلات مراجعه کنید.