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      • Open Access Article

        1 - Feasibility of producing foman cookies by substituting brown sugar and stevia natural sweetener powder instead of white sugar in cookies cream
        S. B. Mirpourian M. Honarvar N. Mooraki
        Introduction: Awareness of proper nutrition leads to people's health, therefore if low-fat and low-sugar foods is produced, this can lead to an increase in the health of the society. Foman traditional cookie is one of the popular confectionery products in the north of I More
        Introduction: Awareness of proper nutrition leads to people's health, therefore if low-fat and low-sugar foods is produced, this can lead to an increase in the health of the society. Foman traditional cookie is one of the popular confectionery products in the north of Iran, which is made from wheat flour, butter, sugar, cinnamon and walnuts. This research deals with the feasibility of producing traditional Foman cookies by removing white sugar from cookie's cream and replacing it brown sugar and stevia natural sweetener powder.Materials and Methods: The changes in the levels of moisture, total sugar, calories and acidity were measured after substituting brown sugar and stevia powder (in terms of flavoring) instead of white sugar in cookie dough during a 14-day storage period at 25 degrees Celsius. In this method, brown sugar was replaced by 40, 50 and 60% of the removed white sugar in cookie core, and stevia was used to compensate sweetness taste. The changes of moisture, total sugar, calories and acidity after this replacement was measured during the 14-day storage period at 25°C.The color, taste, texture hardness and general acceptability of the cookies were investigated by sensory evaluation.Results: The results show that the replacement of brown sugar and stevia in cookie core has caused significant changes in dependent variables such as moisture, total sugar, acidity, calories, and kernel color, therefore kernel color and moisture have increased, but total sugar has a decreasing trend, calorie of cookies has increased as compared to the control sample due to the replacement of dry matter instead of white sugar. There is no significant change in taste, hardness of texture and overall acceptance.    Conclusion: In the examination of the samples in the selected intervals, the highest agreement with the control sample in terms of changes in dependent variables such as moisture, total sugar, acidity, color can be observed in the sample with 40% brown sugar and 60% stevia. Substitution of stevia and brown sugar instead of white sugar led to a decrease in total sugar, but there was no visible effect on taste, texture hardness, and overall acceptance, although time had a negative effect on most of the studied parameters. By increasing the amount of brown sugar, the agreement with the control sample decreases, but the amount of calories has a reverse trend due to the change of dry matter in the core. Manuscript profile
      • Open Access Article

        2 - Optimization of Extraction of Antioxidant and Phenolic Compounds of Caulerpa sertularioides by Microwave-Assisted Extraction Process
        Y. Fayaz M. Honarvar N. Mooraki
        Introduction: Plants have been always considered as one of the main raw materials to be used in food, pharmaceutical and cosmetic industries. Marine algae is a rich sources of bioactive compounds with antioxidant activity. Materials and Methods: In this study optimizati More
        Introduction: Plants have been always considered as one of the main raw materials to be used in food, pharmaceutical and cosmetic industries. Marine algae is a rich sources of bioactive compounds with antioxidant activity. Materials and Methods: In this study optimization of extraction of antioxidant compounds including chlorophyll a and b, carotenoids and total phenolic contents of Caulerpa sertularioides has been carried out by microwave-assisted extraction, based on extraction time, microwave power, solvent type and solvent to sample ratio. Experimental design was performed by Design Expert with 25 runs and the amounts of antioxidant compounds were evaluated. Results: The results of chlorophyll a and b evaluation showed that among 4 studied factors only solvent type had significant effect (p < 0.05). According to the results the optimum conditions of chlorophyll a and b extraction included methanol as solvent, microwave power of 180 watt, extraction time of 20 minutes and solvent to sample ratio of 12.5. Regarding carotenoid solvent was the only significant factor (p < 0.05) and its optimum extraction conditions included methanol as solvent, microwave power of 90 watt, extraction time of 10 minutes and solvent to sample ratio of 5. Concerning total phenolic content none of the 4 parameters of extraction process had significant effect on its extraction (P>0.05). Conclusion: According to the results of this study Caulerpa sertularioides is an important source of antioxidant compounds and by studying the effect of extraction factors on its antioxidant and phenolic compounds and determination of the optimum extraction conditions for each compound, this algae could be employed appropriately. Manuscript profile
      • Open Access Article

        3 - Optimizing of Eruca sativa (khandal) Extraction by Microwave Method and its Application in Marinated Huso huso (Beluga) Fillet
        P. Salami N. Mooraki M. Honarvar
        Introduction: Marination accompanied with the application of functional plant extracts is aconvenient method to preserve fish meat. The present study aims to extract Khandalcontaining antioxidant compounds by the use of microwave and applying it to marinatedfillets of B More
        Introduction: Marination accompanied with the application of functional plant extracts is aconvenient method to preserve fish meat. The present study aims to extract Khandalcontaining antioxidant compounds by the use of microwave and applying it to marinatedfillets of Beluga in order to increase its shelflife at 4±1ºC.Materials and Methods: Microwave extraction optimization according to the solvent type,solvent ratio (5–15.5cc), time (10-30min) and power (90-270W) through RSM and applyingthe optimum extract in respect to the total phenolic compounds and the inhibitory potential ofDPPH free radicals for preparing marinates (i.e. control, treatments containing10 (T1),20 (T2),and 30% (T3) extract( and storage during 20days at 4±1ºC and monitoring the physical,chemical and sensory properties and comparing the results and data were carried out usingone-wayANOVA and chi-square methods.Results: The results indicated that the optimal extract was obtained by the use of water for30min, at 90W and solvent ratio of 5. Moreover, it was revealed that TBA inT2wassignificantly controlled as compared to other groups and the amount of TVB-N, in T2 and T3were lower significantly (P<0.05) and being controlled. In terms of water activity, the highestamount was observed in T2 at days 0 and 10. The highest WHC was observed in the controlon day 0, which was decreased during storage time. The texture hardness, color, appearanceand odor didn’t show significant difference among the groups, but taste and oral sensationwere differed significantly over time. In terms of texture analysis, due to excessivemarinating, the samples became soft and watery and low score was obtained. Examination ofacid-salt taste showed that the marinated samples had acidic and salty taste.Conclusion: It is concluded that the sample containing 20% of extract was selected as thebest group in controlling chemical spoilage. Manuscript profile