mohsen barzegar

Dental injuries are very common and negatively affect an individual's life. The effective management of emergencies in such situations depends on the knowledge of non-experts, such as healthcare providers, who are on-site during the event. This study aimed to investigate the knowledge extent and self-perceived practice of healthcare providers in elementary schools in Abarkuh City regarding the emergency management of traumatic dental injuries.

This descriptive cross-sectional study utilized an online, anonymous questionnaire designed to gather demographic information, assess the background of previous exposure to dental traumatic injuries, and evaluate caregivers' performance in managing such injuries. The questionnaire was distributed to virtual groups of healthcare providers, who had one week to complete it. The collected data were analyzed using descriptive statistics and linear regression tests.

A total of 189 questionnaires were filled out, resulting in a response rate of 80.77%. The average knowledge score of the respondents was 5.63 ± 1.98 out of a possible 10 points, whereas their respondents’ average performance score was 4.48 ± 1.86 on the scale of 7 points. Linear regression analysis indicated that the caregivers' previous knowledge significantly influenced their knowledge level (p < 0.001). After adjusting for demographic variables, the study revealed that caregivers' work experience positively impacted their knowledge score (p = 0.009). However, the self-reported performance ratings of healthcare providers did not show any significant correlation with demographic variables.

The results of this study show that primary school healthcare workers have inadequate knowledge and self-reported performance concerning dental injuries resulting from trauma.

This study aimed to compare the effects of Triadent (triamcinolone mucoadhesive paste) and Ora-Aid mucoadhesive patch on the severity of pain, burning sensation, and size of minor aphthous ulcers.

This double-blind clinical trial was conducted on 40 patients with minor aphthous ulcers. The patients were randomly assigned to two groups (n=20) to use Triadent paste or Ora-Aid mucoadhesive patch (3 times/day). The severity of pain and burning sensation of patients was quantified by a visual analog scale (VAS). Size of lesions was also measured before, and at 3, 5, and 7 days after the treatment by using a graded paper placed next to the lesions. Data were analyzed by the t-test and the Mann-Whitney test (alpha=0.05). 

The mean reduction in lesion diameter at 3 days (compared with baseline) was significantly greater in the Ora-Aid than the Triadent group (P=0.000). However, the mean reduction in lesion diameter at 5 and 7 days was significantly greater in the Triadent group (P=0.000). The mean reduction in the severity of pain and burning sensation was significantly greater in the Ora-Aid group than the Triadent group at 3, 5, and 7 days (P=0.000).

Both Triadent and Ora-Aid significantly decreased pain, burning sensation, and size of minor aphthous lesions. However, Triadent was significantly more effective for reduction of size of lesions while Ora-Aid was significantly more effective for reduction of pain and burning sensation.

Color is an organoleptic attribute that directly affects consumers' acceptance and ‎choice of foods. Synthetic colorants have been associated with numerous side effects, including ‎toxicity, allergies, and behavioral and neurocognitive effects. Most fruit juice sold in the market ‎may contain synthetic color, which poses serious health risks. Red fruit juices, such as cherry and ‎barberry juice, have gained significant attention from consumers in recent years due to their ‎color, phytochemical components, and health benefits. Unfortunately, the potential for ‎adulteration with artificial colors in these juices is considerable, mainly when manufactured and ‎distributed through retail. There has been a growing interest in developing rapid techniques that ‎require minimal sample preparation for identifying such adulterations. Consequently, this study ‎proposes using spectral fingerprints generated by an ion mobility spectrometer (IMS) in ‎conjunction with multivariate data analysis as a user-friendly approach for detecting the ‎adulteration of cherry and barberry juices with various synthetic colorants, including Allura red, ‎Ponceau 4R, and Carmoisine.‎

Advanced glycation end products (AGEs) are a group of compounds formed during the Maillard reaction, which can have adverse effects. This study aims to investigate the formation of fluorescent AGEs using the response surface method (RSM). Factors such as protein type ((whey protein 2.0, 3.5, and 5.0 %w/v) and casein (1.0, 2.0, and 3.0 %w/v)), three types sugar ((glucose and frouctose (0.2, 0.6, and 1.0 M) and lactose (0.1, 0.3, and 0.5 M)), and pomegranate peel (PPE) concentration (250.0, 500.0, and 750.0 ppm) along with their interactions are analyzed. The results of this study showed that, the type of protein, type of sugar, and concentration of phenolic extract from pomegranate peel were effective in preventing the formation of AGEs, and the pomegranate peel extract (specially at 750.0 ppm) was able to effectively prevent glycation reaction. According to the results, protein type and concentration significantly influence AGEs formation. The inhibitory activity of the extract in the model system containing casein was lower than the system containing whey protein, and overall, the inhibitory power decreased with an increase in protein concentration. By changing the type of sugar present in the model system, the inhibitory behavior of the pomegranate peel extract became complex, showing increased, decreased, or no effect in some cases. Further investigations can suggest the use of this extract, especially in the formulation of food products, including infant formulas.

Treatment of head and neck cancers, it can have adverse effects on patients' oral health status. The aim of this study was to assess the level of knowledge and practice of general dentists in Yazd City in the field of oral care in patients undergoing chemotherapy and radiotherapy.

In this descriptive cross-sectional study, 134 general dentists were selected by systematic random sampling and their awareness and practice level were assessed using by using a researcher-made questionnaire with valid and reliable questionnaire (r=0.81). Data were analyzed using SPSS software version 25, t-test and ANOVA tests.

The mean score of knowledge score was 11.44 ±2.03 out of18 and mean of practice score was11.9 ±3.41 out OF 20. The mean score of knowledge was not significantly associated with age, work experience and practice score were not significantly associated with gender, age and work experience, but the mean score of knowledge in women was significantly higher than men (P=0.01). Moreover, dentists worked in both clinic and Personal office showed significantly higher awareness (P=0.001). The average practice score of dentists in personal office was significantly higher than other options (P=0.03).

Dentists of Yazd had moderate knowledge and performance level in the field of oral and dental care in patients undergoing chemotherapy and radiotherapy. It seems that the need to hold programs with this theme in the sessions of continuing education and holding training and educational webinar to improve the level of awareness and clinical practice to provide desirable services to these patients should be considered.

 Odontogenic myxoma is a benign, uncommon odontogenic tumor that includes about 3 to 6% of odontogenic tumors and has an ectomesenchymal origin. It usually occurs in the second to fourth decade of life. Its common site is lower jaw and posterior parts. Treatment of lesion is complete surgical excision of tumor.

Case Report: 

The patient, a 17-year-old girl, complained of swelling of palate two months ago. In the panoramic radiograph, a single, multilocular, radiolucent lesion with relatively well demarcated borders was observed on left side of maxilla. The lesion had spread from midline to mesial of left second molar. The lesion was removed by osteoctomy. In microscopic examination, the possibility of myxoid neurofibroma was raised due to presence of wavy cells. Neurofibroma diagnosis was rejected by immunohistochemical method and odontogenic myxofibroma was diagnosed.

 In clinical and radiographic examination of this tumor, the possibility of a non-odontogenic lesion of nerve origin was raised, and in microscopic examination of excisional sample, due to the observation of wavy cells, the possibility of a myxoid neurofibroma was raised, but the IHC findings were not in favor of it. Therefore, definitive diagnosis requires relationship between clinical and radiographic findings and examination of various microscopic sections, and in case of doubt, IHC should be performed. Since odontogenic myxoma is a locally invasive lesion and has the potential for recurrence, its correct diagnosis is of great importance.

Local anesthesia is a routine part of all dental procedures that can cause complications. One of the most important side effects of intraoral anesthesia is ocular disorders. The aim of this study was to investigate the knowledge and proper management of dentists in Yazd City regarding ocular complications following local anesthesia injection.

In this cross-sectional descriptive study, 193 dentists working in Yazd City were included in the study based on census sampling and they completed a questionnaire, which was consisted of two parts: demographic information and questions referring the knowledge and practice; data were analyzed using SPSS 16 software and ANOVA and T-test and Pearson correlation coefficient.

Mean knowledge score of the participantswas 1.21 ± 0. 6 with a variation range of 0 to 2. The mean awareness score of women was higher than of men, and a statistically significant difference was observed (P-value≤0.05). There was no significant relationship between awareness score and level of education, work experience and age (P-value≥0.05). Only 13.1% of general dentists and 25% of specialists had experienced ocular complications after intraoral anesthesia injection.

Dentists of Yazd City had an average knowledge about ocular complications following local anesthesia injection and due to the great importance of prevention and management of ocular complications following local anesthetic injection, it seems necessary to hold retraining courses on this topic and how to manage it.

Consumers prefer not to use synthetic preservatives so, natural ones such as essential oils (in this research, garlic oil (GO) are mostly consumed in food products as an antimicrobial agents. Application of garlic oil in food industries is limited. Because of its water insolubility, volatility, pungent odour and flavor, and low stability. Encapsulation could eliminate its restrictions. In the present study, different concentrations of free and encapsulated garlic oil in ß-cyclodextrin (GO/ß-CD) were used for formulation of sausage

Five types of sausage were produced, including control (without garlic oil), containing free garlic oil (GO), and three samples containing 546, 818, and 1364 mg of encapsulated garlic oil per kg. After that, changes of pH, color, oxidation indices (PV and TBARs(, monitoring of B. cereus, S. aureus, E. coli, and S. enterica, and sensory (taste, color, odor, and acceptability by 8-point hedonic test) properties were studied during 29 days storage at 4oC.

By increasing the GO/ß-CD content of samples, the overall color changes decreased. The pH of all produced sausages remained constant. At the end of storage, PV was not significantly changed, and TBARs changing was very low. S. aureus was the most susceptible, followed by S. enterica, E. coli, and B. cereus. In sensory evaluation, the panelists did not distinguish between the control and the samples containing GO/ß-CD. Encapsulation of garlic oil with beta-cyclodextrin did not affect the taste of the produced sausages. Due to good antimicrobial properties of garlic oil, it can be used in meat products as a natural preservative.

Central Ossifying Fibroma is a benign bone neoplasm. It has been categorized under fibro-osseous lesions and has significant growth potential that exact etiology is not known. According to studies it has a periodontal ligament origin. It is more prevalent in women and mandibular premolar and molar area. The lesion generally occurs in the third and fourth decades of life. Tumor removal by surgery or curettage are suitable treatment and its recurrence rate is reported to be between 0 to 28%. Most of the time the prognosis of the lesion is optimal nevertheless in some cases, malignant transformation has been reported.

Case Report:

 A 25-year-old woman was referred for dental treatment. The CBCT view demonstrated an ill-defined radiolucent-radiopaque lesion in right mandibular body, lack of lamina dura of the lower right canine tooth and destruction of the buccal and lingual cortex of that area. The lesion was removed by osteoctomy. In microscopic view, the histopathological profile of central ossifying fibroma was observed without evidence of malignant changes. Follow up of the patient after 6 months indicated complete healing and bone formation at that site.

It seems, ossifying fibroma can havd ivvassive feature in radio graphy and mimic malignant lesions. So, microscopic evaluate of all sections is important.

Most third molars eventually need to be extracted, and this tooth has the most varied and unpredictable root position of all teeth. Therefore, considering the importance of accurate diagnosis of the roots of molar teeth before surgery to reduce its surgical complications, the aim of this study was to evaluate the ability of panoramic radiography to diagnose the situation of roots of third molars. the relationship of the roots to each other and the angle of the crown to the root in panoramic and clinical radiographs, respectively, using Romexis viewer and digimizer software were investigated.

In this cross-sectional-analytical study, 104 third molars of 93 patients referred for wisdom tooth extraction were examined clinically for the number of roots, the relationship of roots to each other and the angle of the crown to the root in panoramic radiography using Romexis Viewer  software and clinically after providing photograph and measuring the angle using digimizer software.

In evaluating the roots of third molars, the accuracy of panoramic radiographic interpretation regarding the number of roots was 63.27% and in the presence or absence of root, adhesion was 55.89%. In addition, Pearson correlation analysis showed that there was a significant relationship between the reported angle in radiographic interpretation and the actual angle (r = 0.318 and P value = 0.001).

Therefore, panoramic radiography is a valuable guide for third molar surgery. It is only necessary to consider its high error rate in terms of morphological details such as the number of roots and their relationship to each other.

Sialolithiasis is a most common disease of salivary glands most commonly occurs in submandibular gland system. Simultaneous sialolithiasis in more than one salivary gland and multiple stone formations have been reported in only 5% and 3% of cases, respectively. In this article, a rare case of bilateral presence of various stones in different sizes and shapes in the submandibular glands and its duct in a 68-year-old man has been investigated.  Stones on left side were removed through an intraoral incision and on the right side; the entire salivary gland was removed with extraoral access.

After precise diagnosis of sialolithiasis through various diagnostic modalities, treatment plan should be tailored based on existing condition and the decision was made to remove a salivary gland with extraoral access on one side and remove the stones by intraoral incision on the other side while preserving the salivary gland.

Lentil consumption has been constantly growing due to its nutritional composition and functional properties. Lentil seeds are rich in several bioactive compounds with an effect on decreasing the symptoms of diabetes, cardiovascular disease, and aging. In this study, the effects of acetone extract (GLA extract), soluble fiber (GLSF), and protein (PGL) extracted from green lentils (concentration of 50 mg/ml) on anti-diabetic properties were investigated by measuring the inhibitory activity of alpha-amylase and alpha-glucosidase. There was no significant between the inhibitory activity of alpha-amylase activity by GLA extract and PGL (p < 0.05). Also GLA extract had the greatest effect on inhibition of glucosidase activity (67.08%). Fluorescence quenching had studied the changes in the tertiary structure of alpha-amylase and alpha-glucosidase using different concentrations (0, 0.25, 0.50, 1.00, 2.00, 4.00 mg/mL) of GLA extract, GLSF, and PGL. The results showed that all three compounds extracted from green lentils play as a natural source to inhibit the activity of alpha-amylase and alpha-glucosidase enzymes and be used in the production of functional foods.

Fresh garlic includes several preservative and medicinal characteristics; however, its major bioactive components react and convert to other chemical compoundsas soon as its tissues are injured. Garlic oil is extracted from garlic and its use in food industries is limited due to its strong odor, taste, volatility and low solubility in aqueous solvents. The aim of the present study was to investigate physicochemical, microbial and sensory properties of low-fat salad dressings containing encapsulated garlic oil in ß-cyclodextrin (GO/ß-CD).

Five types of salad dressing, including control with no garlic oil, a sample with free garlic oil and three samples containing 546, 818 and 1364 mg GO/ß-CD kg-1salad dressing were prepared. Then, pH, color and antioxidant [(peroxide value and thiobarbituric acid reactive substances], antimicrobial (monitoring of four pathogens of Bacillus cereus, Staphylococcus aureus, Escherichia coliand Salmonella enterica) and sensory (taste, color, odor and acceptabilityby 8-point hedonic test) properties of the samples were assessed during 41 days of storage at 4 oC.

The minimum and the maximum color differences belonged to GO/ß-CD-3 sample containing 1364 mg GO/ß-CD kg-1salad dressing and sample containing free GO, respectively. Yellowness of samples containing encapsulated GO decreased and direct relationships were seen between decreasing of the sample yellowness and quantity of GO/ß-CD sample. During the storage, pH and peroxide value PV slightly increased. Staphylococcusaureuswas the most sensitive strain to free and encapsulated garlic oil.Escherichiacoli, Salmonella entericaand Bacillus cereus showed lower sensitivities to the oil. Sensory results showed no significant differences between the tastes of control and free or encapsulated garlic oil and GO/ß-CD-2 samples containing 818 mg kg-1encapsulated garlic oil, equal to 90 mg kg-1free garlic oil. However, these two treatments included significant differences with samples containing free garlic oil. Results revealed that encapsulation of garlic oil with ß-CD included no adverse effects on taste of the salad dressings. Therefore, GO/ß-CD-2 (818 mg GO/ß-CD kg-1salad dressing) can be suggested as a natural antimicrobial agent for the functional mayonnaise production.

Odontogenic myxoma is a benign mesenchymal tumor that appears to be associated with odontogenic ectomesenchyme of the growing teeth. This tumor, which often occurs in the second and third decades of life, is extremely rare and often asymptomatic in children. However, no theoretical consensus exists in the literature over the diagnosis and treatment of this disease. In this study, we investigated the diagnostic and therapeutic methods of a rare case of odontogenic myxoma in a 13-year-old child.

Narcotic and alcohol use are recognized as the two important underlying factors in all types of trauma. In this study, the prevalence of opium consumption was investigated in traumatic patients who referred to Shahid Rahnemoon hospital in Yazd in 2018. In this descriptive cross-sectional study, 252 patients with trauma admitted to Shahid Rahnemoon Hospital from October to December 2018 were studied. In order to collect the data, a checklist was administered including the patients’ demographic information (age and gender), opium consumption, location of trauma, day of occurrence of trauma and cause of trauma. The mean of patients’ age was 31.33 ± 19.46 years ranging from 2 to 90 years and 71.4% of them were males. The most common causes of trauma included accidents with motor vehicles (56%), falls from height (19.8%), and intimate partner violence (6%), respectively. Regarding opium consumption, 87.3% of patients did not use it, while 10.3% consumed opium. Narcotic abuse was significantly different with regard to the patients’ gender (P = 0.000) and age (P = 0.000). Opium consumption increases the risk of error and accident while driving. People on methadone treatment also show high-risk behaviors and are at greater risk of accidents.

Early detection of oral cancer by diagnosing the precancerous lesions is the best way for controlling and decreasing cancer’s mortality. Dentists have a significant role in early detection of precancerous lesions and their capability to detect is highly subjected to their levels of knowledge about these lesions. The aim of this study was to assess the level of knowledge, attitude and practice of general dentists in Yazd City regarding oral precancerous lesions.

In this cross-sectional study, 180 Yazd general dentists, selected and they completed a questionnaire, which was consisted of two parts: demographic information and questions referring the knowledge, attitude and practice; data were analyzed using SPSS 16 software and ANOVA and T-test.

Mean score of knowledge was 13.38 ± 2.49 from maximum 22 and mean score of attitudes was 19.35 ± 1.72 from maximum 21, which implies that the participants have a better attitude. No significant correlation was reported between knowledge and gender, years of graduation, workplace, work experience, and attending in retraining classes (P. -value=0.255). There was a significant correlation between attitude and years of graduation (P-value=0.056), which means that participants with 5 years of graduation or less had better attitude toward precancerous lesions.

General dentists of Yazd City have an average knowledge but a good attitude towards precancerous lesions of mouth . Regarding their practice, more than 50% of the participants referred to the orthopedic specialist in case of precancerous lesions.

Pistachios are good sources of some functional compounds that are essential for human health. In addition to consuming dried pistachios (salted/roasted) or used as ingredients in a variety of confectionery and cookery products, consuming fresh pistachios is also gaining a foothold in the market. This review presents pre- and postharvest operations to prevent microbial contamination and to preserve physicochemical properties of fresh and processed pistachios for extending their shelf life. There is a potential in pistachios to be contaminated with some undesirable microbes, especially aflatoxin-producing fungi, during pre- and postharvest operations. In this regard, strategies to the prevention of aflatoxin production and the decontamination of produced aflatoxin in pistachios have been of interest to researchers. Different practices including sorting, thermal processing, biological control, ozone treatment, gamma irradiation, ultraviolet irradiation, and cold plasma have been proposed for aflatoxin decontamination. Sorting out damaged pistachios is one of the most important postharvest strategies to reduce aflatoxin levels (up to 98%) that can be done manually or electronically. The majority of pistachios (~85%) are consumed as roasted form that combining roasting with lemon juice improves the elimination of aflatoxin (up to 93%). Drying and packaging are the most important methods to maintain quality and improve the shelf life of pistachios. Laminated and metallized films with vacuum or modified atmosphere are the proper packaging for pistachios.

Dental prescription provides a basis for treatment of clinical problems such as pain and infection, therefore dentists must be familiar with the logical patterns of prescribing drug. The purpose of this study was to determine the prescribing patterns of drug among Yazd dentists.

In this cross-sectional descriptive study, 500 prescriptions of dentists were evaluated by systemic random sampling. Each prescription was assessed on the basis prescriber gender and degree, the number of prescribed drugs, drug name and form, the readability of prescription, the spelling and dose of prescription drugs, the method of use, the number of prescribed drugs and interference between drugs. Data analysis was performed by using chi-square test.

The average of drugs per prescription was 2.7, the most common drug forms were capsule (33.4%) and tablet (26.1%) and the most frequently prescribed drugs were amoxicillin (21%) and ibuprofen (15.8%); also 59.2% of prescriptions had no errors.

It seems that greater emphasis on prescribing principles during the dentistry and retraining courses could be further improve this outcome.

The aim of this study was to produce the ice cream with potential antidiabetic effects by addition of pistachio peel extract (PPE) (0, 10, 20 and 30% on dry matter basis). The properties of produced ice creams such as physicochemical, rheological, antioxidant, antidiabetic and sensory properties were evaluated. The results indicated that ice creams containing 20 and 30% of PPE provided desired antidiabetic properties (the α-glucosidase inhibition was 79 and 86%, respectively). The DPPH• test results indicated that the antioxidant property of the ice creams containing 30% of PPE was 9.4 times more than the control. All mixes showed non-Newtonian pseudoplastic behavior and by increasing the concentration of PPE, the consistency coefficient (m) and viscosity were decreased. Hardness increased as the level of PPE increased but the stickiness decreased. Results of sensory analysis showed that the addition of PPE (up to 20%) had no significant effect on the overall acceptability of product.

The present research was conducted in order to evaluate the effects of different amounts of cadmium (Cd) and lead (Pb) on the morpho- physiological and biochemical aspects of sweet basil. Pre-treatments of the soil with different concentrations of Cd and Pb was applied two months before starting the experiment in the greenhouse, and then seeds were sown in pots containing contaminated soil, under greenhouse conditions. The results showed that application of cadmium and lead have led to significant changes in morphological traits and reduction in physiological and quality traits including number of lateral shoots, flowering intensities and stem diameter. By increasing concentrations of Cd from 0 to 20 mg. kg-1 soils, the amount of basil cadmium from 0.71 to 3.6 mg. g-1DW and with increasing concentrations of Pb from 0 to 400mg. kg-1 soil, the amount of basil Pb from 0.93 to 4.95 mg. g-1DWwas increased. Different levels of both heavy metals have resulted in significant reduction of SPAD value (22.95 to 13.98) as well as in the amount of chlorophyll a (0.755 to 0.333 mg. g-1 FW) chlorophyll b (0.330 to 0.125 mg. g-1 FW) and carotenoids (0.228 to 0.095 mg.g-1 FW) and photosystem II in chloroplasts (0.834 to 0.422) decreased compared to control plants. According to the increase of Cd and Pb in the plants is harmful and associated with the serious human health, therefore preventing culturing vegetable crops in the heavy metal contaminated soils should be considered.

 Swelling of the surrounding tissue of surgical site is one of the most common, devastating effects after maxillofacial surgery and can have an effect on quality of life and the patients' satisfaction.

The purpose of this study was to investigate the effect of a custom-made appliance by the method of Computer-aided design/Computer-aided manufacturing (CAD/CAM) compared with conventional dressing for reducing facial swelling after maxillofacial surgery. 

This clinical trial accomplished in 14 patients voluntarily referred to the Department of Oral and Maxillofacial Surgery at Bahonar hospital in Kerman. These patients were the candidate for surgical treatment of similar bilateral facial fractures (10 patients) and orthognathic surgery (4 patients). Facial computed tomography (CT) scans of the patients were taken to build up a custom-made appliance. Based on three-dimensional reconstruction from facial CT scan data, custom-made appliance was designed and built. Swelling on one side with custom-made appliance and on the opposite side with conventional dressing measured with paper tape graded before surgery, immediately after surgery, 24 hours, 48 hours, and 7 days later, we divided the patients into two groups of trauma and orthognathic surgical procedures

Based on the defined landmarks, all of the measurements were performed on both sides. Statistical analyses do not show any asymmetry before surgery (p= 0.48). In addition, there was no significant difference between two methods of dressing on the day of surgery and a day later (p= 0.084, p= 0.09), but there was a significant difference between two methods of dressing on second and seventh days. The swelling has decreased faster and further in our new method.

Regarding the exact adaptation to the surgical site on facial skin, using custom-made appliance by the method of CAD/CAM could be an effective tool that reduces swelling after maxillofacial surgery.

Pyogenic granuloma is a common tumor-like growth of the oral cavity that traditionally has been considered to be non-neoplastic in nature. The pyogenic granuloma is a smooth or lobulated mass that is usually pedunculated, although some lesions are sessile. Pyogenic granuloma of the gingival is frequently developed in pregnant women, hence the terms pregnancy tumor and/or granuloma gravidarum are often used. The pyogenic granuloma has been reported to be associated with port-wine stain particularly during pregnancy, and after trauma, or laser treatment. The pathogenesis of pyogenic granuloma is unclear. This report describes the presentation of a large pregnancy tumor in a patient with an isolated facial port-wine stain.

Ohmic heating or direct resistance heating is one of the several electromagnetic based methods, occurs when alternating electrical current is passed through a conductive material, with the primary purpose of heating it due to the electrical resistance of the foods. There are many applications that can use ohmic treatment technology, such as blanching, evaporation, dehydration, fermentation, extraction, sterilization and pasteurization of foods (Saberian et al. 2015; Assiry et al. 2010). Pectins are complex heteropolysaccharides, consisting of α-1, 4-linked D-galacturonic acid units and interrupted by L-rhamnose residues with side chains of neutral sugars, mainly L-rhamnose, L-arabinose and D-galactose. In the industrial extraction process, pectin is usually extracted from waste plant material such as citrus peels, apple pomace, sugar beet pulp and sunflower head using hot water (60–100°C) acidified with a mineral acid (such as sulfuric, phosphoric, nitric, hydrochloric) or organic acid (especially citric acid) within the pH of 1.5–3 for 0.5–6 h. The aim of this study was to explore the effect of enzymatic extraction on the yield and quality properties (degree of esterification, Galacturonic acid, emulsifying properties and viscosity) of the pectin, and to compare this pectin with the pectins extracted by ohmic and conventional methods. Finally, the best extraction method was selected.
Extraction of pectin was done with the assistance of an ohmic heating system at working frequency of 50 Hz under different parameters including voltage gradient (7-15 V/cm), temperature (50-90°C), and time (5-30 min). Then, the effect of enzyme dose (0-20% v/w) of Celluclast and Rohament CL, solid/liquid ratio (S/L ratio) (1:10 to 1:50 g/ml) and extraction time (1-18 h) on the yield of the extracted pectin from orange waste was investigated.
After the time of extraction (enzymatically, ohmically or conventionally), the sample was cooled to room temperature and centrifuged (10000 rpm, 15 min), and the supernatant was precipitated with two volumes of 96% (v/v) ethanol at 4 °C for 1 h. The precipitated pectin mass was washed twice with 96% ethanol in order to remove impurities. The pectin was dried in a forced circulation oven at 55°C until a constant weight (14 h).
Galacturonic acid content was determined according to Scott (1979) with some modifications. The degree of esterification (DE) of pectin samples was determined by titrimetric method according to Santos et al. (2013).
Emulsifying activity and emulsion stability were measured according to the method described by Yapo et al. (2007).
The viscosity and the flow behavior of the selected pectin solutions (2%, w/v) extracted conventionally and ohmically at 90°C for 30 min (the optimum extraction condition) and the highest pectins extracted enzymatically, were measured at 25°C.
Pectin powder samples were mixed with KBr and pressed into KBr pellets before FTIR analysis. PerkinElmer FTIR spectra (PerkinElmer, Frontier model, USA) was applied at the transmission mode in the frequency range of 4000–400 cm-1 at a resolution of 1 cm-1.
Results were analyzed by analysis of variance (ANOVA) using SPSS 19 statistical software and the Duncan’s test with 95% confidence interval was used to compare the means of the tests. The results which were presented in this research, have been obtained from the average values of the minimal two replicate experiments.
first, the effect of enzyme dose, solid/liquid ratio (S/L ratio) and time of extraction on the yield of the extracted pectin from orange waste by using Celluclast and Rohament CL enzymes was studied. Then, the yield, of esterification, galacturonic acid, emulsifying properties and viscosity behavior of the pectins extracted in the optimum condition by enzymes were compared to the extracted pectins by ohmic and conventional methods. Results indicated that the highest yield of pectin was obtained by using Celluclast and Rohament CL enzymes at enzyme doses of 15 and 17.5%, S/L ratio of 1:20 and 1:40 (g/ml) and time of 3 h for both, which were 5.92 and 10.70 %, respectively. The highest yield of pectin by ohmic heating was obtained at the voltage gradient of 15 v/cm, the temperature of 90°C during 30 min (14.33%), which was higher than the amount obtained by conventional method (13.53%) may be due to the electroporation (disruptive pores which were made on the cell membrane by the electric field) (Cho et al., 1996). de Oliveira et al. (2015) reported that the moderate electric field (at 45°C, 50 and 100 V) extracted the pectin significantly (p

For quality assessment of coated fish fillet with sodium alginate containing inulin, fish fillet were coated with sodium alginate containing 10, 20, 30 and 40 percent inulin using two methods, including dipping and vacuum impregnation. Then fructan were determinate in coated samples. The samples including 20 and 40% inulin in vacuum impregnation and dipping respectively were selected for further study based on their higher fructan content. Therefore, the chemical and microbial changes of selected samples were investigated during 16 days, with 4 days interval in refrigerated condition (40C). Results showed that the fructan content had not changed significantly (p≥0/05) during the storage period. Peroxide in the middle of storage period was increased and then decreased significantly (p≥0/05) by the end of storage time. Quality indexes such as pH, thiobarbitoric acid (TBA), total volatile basic nitrogen (TVB-N), total plate count bacteria, psychotropic bacteria and peroxide increased significantly (p≥0/05) along time. In all of the samples, TBA at the end of 12 day storage, TVB-N at the end of 16 day storage, anaerobic bacteria count and pseudomonas bacteria count at the end of 12 day storage were more than acceptable limit of fresh fish. In the conclusion, fructan of coated fish fillet had not changed significantly during refrigerated storage, as well as shelf life of coated fish fillet by dipping and vacuum impregnation in refrigerated condition storage (40C) was less than 12 days.

Summer fruit drop (June drop) is one of the main reasons for low yield in some citrus varieties in northern Iran. Recognition of physiological changes in fruit abscission zone (calyx) and application of suitable treatments would reduce or control abscission. Hence, the changes of auxin, cellulose, and polygalacturonase in calyx of Thomson navel fruitlets were measured and their relations with abscission and mineral nutrition of fruitlets as well as the effect of different treatments on them at June drop were evaluated. A randomized complete block design (RCBD) experiment was performed with 8 treatments and 4 replicates. Treatments were as follows: 1. control; 2. urea (1%); 3. urea 2,4-D (15 mg l-1); 4.urea GA3 (15 mg l-1); 5.urea sucrose (1%); 6.urea ZnSO4 (0.5%); 7. urea ZnSO4 2,4-D; and 8. urea ZnSO4 GA3. Results showed that abscission had a significant negative correlation with auxin and a significant positive correlation with cellulase and polygalacturonase of the calyx. The control group had the lowest auxin and the highest cellulase in calyx. Maximum effect (Approximately 24% reduction in abscission) was obtained after foliar application of urea sucrose (treatments 5). The use of urea alone or in combination with 2, 4-D and GA3 had no effect on abscission; however, using it in combination with sucrose was the most efficient treatment in this experiment. Furthermore, the combination of urea and Zn provided an effective treatment. A majority of micronutrients (Mg, Fe, Mn, Zn, Cu and B) had a positive correlation with auxin and a negative correlation with enzymes. Therefore, nutritional management and providing an appropriate condition to maximize photosynthesis can balance physiological metabolism and reduce fruitlets abscission.