کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7619636 1494472 2018 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lactobacillus fermentation of jussara pulp leads to the enzymatic conversion of anthocyanins increasing antioxidant activity
ترجمه فارسی عنوان
تخمیر لاکتوباسیلوس پالپ ژسارا منجر به تبدیل آنزیمی آنتوسیانین ها به افزایش فعالیت آنتیاکسیدانی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Bacteria possessing an enzymatic system able to metabolize anthocyanins may play a major role in the production of compounds with different bioavailability and biological activity. In this study, Lactobacillus and Bifidobacterium strains were screened for the enzymatic activities of α-galactosidase, β-galactosidase and β-glucosidase. These strains were also screened for their ability to convert the anthocyanins from jussara. The nine evaluated strains produced at least two of the three enzymes; they were also capable of changing the main anthocyanin's chromatographic profile. The values of cyanidin 3-glucoside and cyanidin 3-rutinoside, following fermentation, ranged from 0 to 3217.7 and 4323.3 to 17190.9 μg/100 mL of medium fermented, respectively. The Lactobacillus deubruekii strain was able to change the anthocyanins from jussara pulp more extensively. Therefore, a culture medium containing jussara pulp and glucose was optimized using the experimental design as a statistical tool. Medium maximization occurred with a mixture composing 20% jussara pulp and 10% glucose in which the microorganism was able to reach the highest enzymatic production as well as produce the most extensive conversion of the main anthocyanins. Protocatechuic acid was the main enzymatic bioconversion product identified following fermentation. In addition, there was an observed increase in antioxidant activity following the jussara pulp fermentation process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Composition and Analysis - Volume 69, June 2018, Pages 162-170
نویسندگان
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