کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8348237 1541718 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrolysates of sheep cheese whey as a source of bioactive peptides with antioxidant and angiotensin-converting enzyme inhibitory activities
ترجمه فارسی عنوان
هیدرولیزات پنیر گوسفند پنیر به عنوان منبع پپتیدهای زیست فعال با فعالیت های مهار کننده آنزیم تبدیل آنتی اکسیدانی و آنژیوتانسین
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی
Enzymatic proteolysis may be employed to release bioactive peptides, which have been investigated for potential benefits from both technological and human health perspectives. In this study, sheep cheese whey (SCW) was hydrolyzed with a protease preparation from Bacillus sp. P7, and the hydrolysates were evaluated for antioxidant and angiotensin I-converting enzyme (ACE)-inhibitory activities. Soluble protein and free amino acids increased during hydrolysis of SCW for up to 4 h. Antioxidant activity of hydrolysates, evaluated by the 2,2′azino-bis-(3-ethylbenzothiazoline)-6-sulfonic acid radical scavenging method, increased 3.2-fold from 0 h (15.9%) to 6 h of hydrolysis (51.3%). Maximum Fe2+ chelation was reached in 3 h hydrolysates, and the reducing power peaked at 1 h of hydrolysis, representing 6.2 and 2.1-fold increase, respectively, when compared to that of non-hydrolyzed SCW. ACE inhibition by SCW (12%) was improved through hydrolysis, reaching maximal values (55% inhibition) in 4 h, although 42% inhibition was already observed after 1 h hydrolysis. The peptide LAFNPTQLEGQCHV, derived from β-lactoglobulin, was identified from 4-h hydrolysates. Such a biotechnological approach might be an interesting strategy for SCW processing, potentially contributing to the management and valorization of this abundant dairy byproduct.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Peptides - Volume 61, November 2014, Pages 48-55
نویسندگان
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