The effect of microbial fermentation on antioxidant activity in poultry slaughterhouse by-products
Publish place: The 2nd International Congress and the 25th National Congress of Food Science and Technology
Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NCFOODI25_227
تاریخ نمایه سازی: 26 خرداد 1398
Abstract:
Poultry by-products are a rich protein source that has a potential for recycling valuable products. Since poultry by-products is an important problem for environment, it is necessary to find some ways for converting them to useful products. The samples were collected from a poultry slaughterhouse in Karaj and proteolytic microorganisms were screened. Then 28 isolates were separated that among them, 14 isolates had proteolytic activity. In 14 isolates, 5 isolates had the maximum proteolytic activity (R, D, P, G, F) and R was selected for fermentation. The fermentation was done on poultry by-products with 12.5% inoculation, 150 rpm,1% D-glucose and 37oC. the antioxidant activity was assayed on hydrolysates by some methods such as scavenging free radicals and ferrous ion chelating. The results showed R grew very well and fermentation impresses on antioxidant activity that trepans to augmentation on antioxidant activity. Since poultry by-products are used for feeding, so fermentation is a good way to improve quality of feed.
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Authors
Zhila Zolfagharian
M.sc Microbial Biotechnology, microbial industry laboratory, Alzahra University
Hosseini Fakhri Sadat
Assistant Professor of department of biotechnology, Department of Biotechnology, Alzahra University