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The aim of this study was to investigate the effect of adding protein concentrate of Bream (Abramis Brama) on chemical properties, texture, color and sensory evaluation of pasta. The fillets were cooked in boiling water for 10 minutes, then minced using a meat grinder. The minced fish was dried at 60 C for 24 hours in an oven and powdered with a grinder. Pasta was prepared with different percentages of FPC (0, 5%, 7.5%, 10%, 15% and 20%). Chemical properties (energy, carbohydrate), tissue tests (hardness, adhesion and resilience), color tests (b, a, L) and sensory evaluation were evaluated. The results showed that by adding fish protein concentrate, the amount of pasta carbohydrate decreased compared to the control sample. In contrast, with increasing fish protein concentrate in pasta, the amount of energy increased significantly (p <0.05). The highest energy content was observed in the pasta containing 20% FPC and the lowest energy content in the control sample. The addition of FPC did not cause any adverse changes in the color of the pasta. The amount of yellow and redness of the pasta increased with the addition of FPC. The amount of pasta patency increased with the addition of fish protein concentrate. The color, taste, chewability, elasticity, odor, filament appearance, adhesion, hardness and overall evaluation of pasta with 7.5% FPC was better than others.  Regarding the texture, color and sensory characteristics of the pasta, it can be concluded that the pasta containing 7.5% fish protein concentrate had better characteristics than other samples.

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In this research, response surface methodology was used to investigate the influence of improver gel components on the dough farinographic properties and quality of Barbari bread and optimization of gel formulation. Gel samples were prepared using sodium stearoyl-2-lactylate (SSL), diacetyl tartaric acid esters of monoglyceride (DATEM) and propylene glycol (PG) in the range of 0-0.5 g/100g. The results showed that addition of all three components to the gel formula caused decrement in the water absorption, dough characteristics i.e. development time and mixing tolerance index and bread hardness at first day but all of these parameters except of water absorption affected by their interaction. Dough stability and valorimeter value increased by increasing the gel components addition and were affected by their interaction. Although bread properties i.e. specific volume, moisture content, water activity, sensory score and ΔE increased by addition of SSL and DATEM but the decrease of moisture content, water activity and ΔE was observed by increasing the propylene glycol. The represented models have high determination coefficients and could be used for prediction of all investigated characteristics. The results for optimization using central composite design suggested that a mixture containing 0.5 g/100g of SSL, 0.25 g/100g of DATEM and 0.5 g/100g of PG could be a good improver gel to achieve the best characteristics.  

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Pomegranate and plum paste are acidic products that are often used in the preparation of most local foods in Guilan province. As the preparation of these pastes is mainly done in the aluminum containers traditionally, there is a possibility of aluminum leaking into the pomegranate and plum puree during processing. The presence of aluminum in the diet as a contaminant has aroused the concern of many researchers and many studies have been conducted to track the relation between the aluminum intake and the occurrence of the disorders such as Alzheimer's, Parkinson's, breast cancer, neurological syndromes, and anemia and the link has been proved. In this study, pomegranate and plum paste from 13 different cities of the Guilan province were collected and the amounts of aluminum in them were measured using atomic absorption spectrometry after digestion by dry, wet, and microwave ashing methods. The results showed contamination of pomegranate and plum pastes with high amounts of the aluminum that was higher in plum paste in comparison to the pomegranate paste. The concentration of aluminum in the case of digestion by microwave was higher than the other two methods. Although the aluminum concentration in all samples did not exceed the tolerable level defined by WHO, continuous and long-term use, considering exposure to the other sources of contamination, would be a serious health threat. Therefore, it is necessary to pay more attention to the safe processing of these products.