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Abstract
Aims: For the purpose of marketability and consumer preferences, two types of hand moisturizing products (Alginate gel and Fucoidan cream) produced from Sargassum algae, this study was conducted. then evaluated with a common commercial sample as a control.
Methods: Gel and two cream samples were prepared in 3 jars of 10 g to evaluate 30 individuals as panel members. Evaluation was performed using one product per week and with a one-week break between sessions. The designed questionnaire consisted of sociological questions and 12 characteristics of the products that were rated with 3 points of preference The Friedman test was used to analyze the ratings and the scoring method was used to identify the final product.
Results: Two characteristics of produced cream and gel (moisturizing and shelf life) at a significant level. The gel had the highest moisturizing capacity and the cream had the highest shelf life. Consumers paid more attention to the nourishing and hydrating properties of the skin, being organic and soft in choosing the suitable moisturizer for their hands. They like moisturizing cream of 250 gr jar. Nutrition and hydrating, therapeutic effect and skin repair were also ranked as high priority. Ultimately, the Fucoidan moisturizing cream gained the highest preference in market.
Conclusion: The Fucoidan cream produced from Sargassum algae compared to alginate gel from this alga, as a moisturizer with suitable shelf-life and have other hand cream properties, can be an acceptable commercial product in the market.
 

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Supplying fresh fish and sea products is accompanied with the problem of their rapid spoilage and short shelf life. Therefore, solutions which help increase this shelf life have always been valued. Accordingly, the aim of this study was to evaluate the effect of whey protein coatings containing four different concentrations (100,200,400 and 800 IU/gr) of nisin in perch fillet for storage in refrigerator temperature. Humidity tests, Peroxide Value, Thiobarbituric acid Index, microbial load, water activity and pH were performed over coated and uncoated samples. The results indicated that increasing the shelf life in all treatments led to an increase in peroxide value, Thiobarbituric acid Index, the load of bacteria, pH and water activity, this increase was less in coated samples than the uncoated ones. On the other hand, the findings showed that whey protein and nisin coating with the of concentration 400 IU/gr of perch fillet can add 16 days to increase the shelf life in refrigerator temperature in comparison with the uncoated samples. Based on our findings, it can be concluded that using whey protein coating containing nisin with the concentration of 400 IU/gr of perch fillet as edible coating  can increase the shelf life in the refrigerator temperature.

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Due to the use of organic solvents is associated with environmental pollution, toxicological and safety concerns, alternative extraction methods have been investigated. In this study, the efficacy of application of β-Cyclodextrin (β-CD) and ultrasound-assisted extraction (UAE) as an eco-friendly, cost-effective and safe method for extraction of bioactive compounds from pomegranate peel compared to the aqueous extraction method was studied. The response surface method (RSM) was used to optimize extraction conditions. Designed experiments were done based on the Box-Behnken design with three independent variables, including temperature (30, 50 and 70 °C), time (10, 25 and 40 min) and concentration of β-CD solution (0, 0.9 and 1.8 %). The optimum extracting temperature and time and β-CD concentration were 55.7°C, 15.38 min, 1.8% respectively. In the optimum condition, the following characteristics of extracted bioactive compounds were obtained: Non-flavonoid phenols 75.77 (mgGAE/gDW( and extraction efficiency was 42.81%. Inclusion complex formation was confirmed by differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR) and SEM. As a result of this study, aqueous β-CD and UAE as a safe method can be replaced with other extraction methods to extract compounds with high nutritional value.

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There are different methods for the preparation of infusions that can affect the properties of these infusions. The usual method for preparing of infusion is a maceration method that is made using boiling water and a filter. The aim of this study was to prepare marjoram infusion and evaluate the effect of the method of maceration and ultrasonic for different times (5 and 15 min) on phenolic, compounds, free-radical scavenging capacity (DPPH) and heavy metals (arsenic, lead and Cadmium) in the form of a completely randomized design. The results of data analysis obtained from the experiment showed that the preparation method of infusion had a significant effect on all the parameters of the study. The results showed that the amount of phenolic compounds, free-radical scavenging capacity (DPPH) and heavy metals (arsenic, lead and Cadmium)  increased by increasing the time of both processes (ultrasound and maceration). On the other hand, the use of ultrasound waves was found to increase the usefulness of the compounds and also the heavy metals in the marjoram infusion. The total amount of heavy metals measured in this study was less than the standard defined for heavy metals for plant and fruit infusions. Finally, according to the results of this research, it can be stated that using 15 min ultrasound was the best method for making marjoram infusion.
 

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To avoid or postpone the spoilage of meat goods and their products, various chemical, physical and microbial methods such as the incorporation of antioxidants, using suitable antibacterial substances have been suggested. In this analysis, three ranges of essence concentrations (0.25, 1.125, and 2 percent) and three storage courses (1, 6, and 11 days) were used to analyze the impact of applying essence Stachys schtschegleevii  to ground Minced calf meat at refrigerated temperature. The capacity to inhibit DPPH free radicals, regenerative power, meat myoglobin amount, peroxide number, pH, and microbial load of the samples were examined by gas chromatography fitted with mass spectrometers after recognizing chemical compounds. Additionally, Statistical analysis plus process optimization were also carried out by response surface method. The findings of this analysis revealed that Sesquiterpene (24.35 percent) was the highest composition of the essence. Based on the acquired results from the optimization Process it seems that the samples containing 1.24 percent of Stachys schtschegleevii essence with 2 days of storage were the most suitable manner (0.824). With having an insightful view of the obtained results of the experiment, it could be indicated that the nature of this plant can greatly minimize the spoilage of minced calf meat.

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Application of extracts and essential oils with antioxidative properties to stabilize edible oils is a usual approach. However, this needs extraction of essential oils and extracts which is time consuming and costly. A new method is using herbs with oilseeds during the oil extraction by press. In this study, rosemary leaf at 0 (control sample), 2.5, 5, 7.5 and 10% (w/w) was added to black cumin seeds (BS) and oil then extracted by screw press. Extracted oil qualitative properties were determined in production day and every 30 days during 90 days of storage. Obtained results showed that level of essential oil increased (from 0.1 to 0.77%) by increasing the level of RL. Peroxide value of the extracted oils was decreased from 20 to 8.8 (meqO2/Kg oil) by increasing the RL with higher oxidative stability during storage. Acidity was increased in the oil samples extracted from the BS with RL higher than 5%. Chlorophyll and carotenoids contents were increased from 52 to 204 (mg/kg oil) and 5.2 to 13.7 mg/kg oil, respectively, but their content decreased due to decomposition about by half during storage.  In conclusion, obtained results showed that new method of pressing BS incorporated with RL an herb with antioxidative properties is possible and could give a new product and an oil with higher oxidative stability.

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Today, the tendency to use flaxseed oil as a rich plant source of ω-3 fatty acids has increased. But the high content of unsaturated fatty acids in flaxseed oil makes it highly susceptible to oxidation. In this study, to produce flaxseed oil powder with more stability than oil, rosemary leaf powder (as a natural source of antioxidants) in 3 levels (5, 10 and 15% of oil) and 3 different proportions of flaxseed oil and Microcrystalline cellulose (50:50, 50:75 and 50: 100) were mixed together. The results showed that by transporting the oil to the powder form and addition of rosemary leaves, the rate of increase in peroxide, thiobarbituric acid and acidity during storage was decreased significantly (p < 0.05). Storage at refrigerator (4 ºC) was more effective than room temperature (25 ºC) in increasing oxidative stability of samples during storage. Oxidative stability increased with increasing the concentration of microcrystalline cellulose and rosemary leaves. Addition of rosemary leaves caused a slight increase in acidity in the samples. Rosemary leaves also increased phenolic compounds, chlorophylls and carotenoids in the samples. Mixing the oil with microcrystalline cellulose significantly (p < 0.05) reduced the decomposition rate of phenolic compounds, chlorophyll and carotenoid contents. It was concluded that by mixing flaxseed oil with microcrystalline cellulose and rosemary leaves, a new powder product with suitable oxidative stability is introduced, which has the potential to be applied directly on foods such as salads or to be used in different food formulations to fortify them with natural antioxidants and ω-3 essential fatty acids.

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 In general, keeping beef fillets in the refrigerator (4 ° C) will be spoiled due to the growth of microbes, which endangers the food and economic health of the consumer. Therefore, the aim of this study was to investigate the effects of whey protein coating. And gelatin with three levels of whey protein (0, 0.5 and 1%), three levels of gelatin (0, 0.5 and 1%) and two concentrations of whey protein-gelatin combination (0.5 and 1%) In order to increase the shelf life of beef fillet at refrigerated temperature. For this purpose, tests of moisture, peroxide number, thiobarbituric acid index, microbial load and general acceptance were performed on coated and uncoated beef fillets. The results showed that with increasing storage time in all treatments, the amount of peroxide and thiobarbituric index of samples increased, which was less in coated samples than uncoated samples (p <0.05) and with increasing storage time, moisture content of fillets. Without coverage as well as overall acceptance of samples decreased significantly. The minimum amount of bacteria also belonged to the samples coated with 1% whey protein-gelatin. Based on the obtained results, it can be concluded that the use of whey protein and gelatin combination coating with a concentration of 1% as an edible coating in beef fillet was selected as the best treatment.

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lecithin -based liposomes were studied as carriers of vitamins E and C to enrich lentil/buckwheat-based fermented beverages. Liposomes prepared by hydration method. Particle size and shape were analyzed by light scattering and scanning electron microscopy. The percentage of encapsulation efficiency of vitamins E and C was determined by HPLC method. The encapsulation efficiency of vitamin E and C nanoliposome's was 88.5% and 50%, respectively. The average volume diameter of vitamin C nanoliposomes was smaller than the average volume diameter of vitamin E nanoliposomes. The results showed that the liposomes produced by sonication method are stable nanoliposomes with small size, low Polydispersity index and single-mode with high negative surface charge. Electron Microscopy Images showed nanometer-sized spherical nanoliposomes. The combination of liposomal formulations and free vitamins in the fermented beverage did not change the chemical properties of the control beverage. The count of probiotic bacteria in these formulations after 15 days of storage at 4 ° C didn’t change compare to the control beverage.
 

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Analysis of the extraction modelling for natural compounds is essential for industrial application. In the present paper, ohmic-assisted extraction was investigated for the extraction of Falcaria vulgaris extract. This study was performed in order to express the effect of some pecific parameters (as: voltage gradiant, ethanol to water ratio, extraction time and temperature) on the extraction yield and total phenolic content (TPC). Kinetics models (first-order, second's-order and pelleg models) and artificial neural network were used for modeling ohmic-assisted extraction process. Kinetic study plays a very important role in evaluating the extraction process because it allows estimation of the cost-effectiveness of the process in saving time, money and energy. The results showed that the second-order and plleg's kinetic models respectively, were successfully predicted the value of the total phenol content of the extract and extraction yield in all experiments. The correlation coefficient between experimentally obtained extraction yield and total phenolic content and values predicted by artificial neural network (4-16-2) were 0.995 for training, 0.963 for validation, and 0.979 for testing, indicating the good predictive ability of the model. The artificial neural network model had a higher prediction efficiency than the kinetic models. Artificial neural network can reliably model the process with better predictive and estimation capabilities than the kinetic’s models.
 

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Bread is the main food in providing energy and protein in the diet of Iranian society. Therefore, the consumed bread must be of good quality, and one of the effective factors in its quality is the consumed flour gluten quality and quantity, which unfortunately, these factors are not desirable for wheat produced in Iran. One of the ways to decrease this problem is to use enzymes in the bread production flour. In this research, the effects of adding glucose oxidase (GO) and trans glutaminase (TG) enzymes in amounts of 0 to 30 ppm, α-amylase (AM) in amounts of 0 to 50 ppm and xylanase (XA) in amounts of 0 to 100 ppm on rheological properties of the Barbary and Lavash bread dough were prepared and analyzed using the response surface method (RSM) and the properties of the resulting dough were studied by farinograph, Falling number and alveograph rheological tests. The results of statistical analysis using Design Expert software showed that in different amounts of TG and GO, increasing AM caused a decrease in falling number. AM and XA decreased the amount of water absorption based on farinograph, but their interaction was not significant. At high amounts ​​of AM and TG, farinograph index (FQC) was at its highest value. The increase of AM decreased the P index of the alveogram, whereas, the increase of GO and XA when used individually increased this parameter. The interaction effect of the last two enzymes was also significant and the median value of both which decreased P index. In Barbary and Lavash bread, the values ​​of TG and GO in the maximum amounts ​​(30 ppm) and AM in the values ​​of 16 and 23 ppm were the most effective. The effect of XA enzyme was not significant in Barbary bread, but 23 ppm of XA showed a positive effect in Lavash bread.
 

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To control the excess oil uptake and avoid the health problems associated with consumption of foods with unsafe amount of oil, some additives have been used. The aim of this study was to evaluate the effect of carboxymethyl cellulose (CMC) on oil uptake and quality of bighead carp (Hypophthalmichthys nobilis) nuggets. Twenty-seven treatments with a 3×3 factorial design was used to optimize CMC at 0.25, 0.5 and 0.75% in meat, 0.25, 0.5 and 0.75% in batter and 25, 50 and 75% in pre-dust wheat flour and coating medium. All nuggets were subjected to deep-frying at 180 ºC for 3 min. some parameters in deep-fried nuggets were measured. The oil uptake after pre frying ranged from 2.86 (treatment 5) to 0.99 (treatment 18) indicating moisture loss in some samples. Shrinkage was affected by formulation and formulation × coating medium. Also, results indicated no difference in surface oil among samples (p > 0.05). However, the amount of absorbed oil was significantly different among nuggets. Nuggets produced using 0.75% CMC showed the highest moisture content (p < 0.05). Coating layer stickiness ranged from 87.73 to 65.06% and with the exception of wheat flour, the effect of all variables and their interactions significantly influenced stickiness (p < 0.05). Therefore, the use of CMC at 0.75% in product formulation, 0.75% in coating medium and 0.25% in wheat flour could be a promising process for lowering oil uptake and improving quality of experimental nuggets.