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Production of yeast hydrolysates byBacillus subtilisderived enzymes and antihypertensive activity in spontaneously hypertensive rats

文献类型: 外文期刊

作者: Huang, Yanbo 1 ; Wang, Jiajia 1 ; Hou, Yi 2 ; Hu, Song-Qing 1 ;

作者机构: 1.South China Univ Technol, Sch Food Sci & Engn, Overseas Expertise Intro Ctr Discipline Innovat F, Ctr 111, Guangzhou 510641, Guangdong, Peoples R China

2.South China Univ & Technol, State Key Lab Pulp & Paper Engn, Guangzhou, Guangdong, Peoples R China

3.Guangdong Acad Agr Sci, Guangdong Key Lab Agr Prod Proc, Sericultural & Agri Food Res Inst, Guangzhou, Peoples R China

关键词: Bacillus subtilis; angiotensin-converting enzyme; anti-hypertensive activity; spontaneously hypertensive rats; yeast peptides

期刊名称:FOOD BIOTECHNOLOGY ( 影响因子:1.564; 五年影响因子:1.521 )

ISSN: 0890-5436

年卷期: 2020 年 34 卷 3 期

页码:

收录情况: SCI

摘要: Numerous studies have been carried out on antihypertensive peptides. However, the separation and purification were too costly, limiting their industrial application. The aim of this study was to produce antihypertensive yeast hydrolyzates (YH) with a simple and cost-saving procedure, coupling fermentation and enzymatic hydrolysis. Crude enzyme, exhibiting protease and beta-glucanase activities, was generated fromBacillus subtilisHu 528 and subsequently used to release and hydrolyze the intracellular proteins from dry yeast. YH exhibited strong ACE inhibitory activity, with IC(50)value of 26.13 mu g/mL, while antihypertensive properties were found on spontaneously hypertensive rats (SHRs) in short- and long-term administrations. YH could increase blood nitric oxide (NO) of SHRs. Moreover, 778 peptides were identified from YH by Nano LC-MS/MS and most of these peptides had ACE inhibitory potentials based on database search and alignment. This study indicated promising potential of YH as a source of ACE inhibitory peptides and potentially could be used in functional foods.

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