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Soy lecithin increases the stability and lipolysis of encapsulated algal oil and probiotics complex coacervates

文献类型： 外文期刊

作者： Zhang, Weiqian 1 ; Chen, Ying 1 ; Wang, Weifei 2 ; Lan, Dongming 1 ; Wang, Yonghua 1 ;

作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Dept Food Sci & Engn, Guangzhou, Peoples R China

2.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangzhou, Peoples R China

3.Guangdong Youmei Inst Intelligent Biomfg, Foshan, Peoples R China

4.South China Univ Technol, Sch Food Sci & Engn, Dept Food Sci & Engn, Guangzhou 510640, Peoples R China

关键词： probiotics; algal oil; co-microencapsulation; lecithin; in vitro digestion

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：4.1； 五年影响因子：4.2 ）

ISSN： 0022-5142

年卷期： 2023 年 103 卷 8 期

页码：

收录情况： SCI

摘要： BACKGROUNDCo-encapsulation of probiotics and omega-3 oil using complex coacervation is an effective method for enhancing the tolerance of probiotics under adverse conditions, whereas complex coacervation of omega-3 oil was found to have low lipid digestibility. In the present study, gelatin (GE, 30 g kg(-1)) and gum arabic (GA, 30 g kg(-1)) were used to encapsulate Lactobacillus plantarum WCFS1 and algal oil by complex coacervation to produce microcapsules containing probiotics (GE-P-GA) and co-microcapsules containing probiotics and algal oil (GE-P-O-GA), and soy lecithin (SL) was added to probiotics-algal oil complex coacervates [GE-P-O(SL)-GA] to enhance its stability and lipolysis. Then, we evaluated the viability of different microencapsulated probiotics exposed to freeze-drying and long-term storage, as well as the survival rate and release performance of encapsulated probiotics and algal oil during in vitro digestion. RESULTSGE-P-O(SL)-GA had a smaller particle size (51.20 mu m), as well as higher freeze-drying survival (90.06%) of probiotics and encapsulation efficiency of algal oil (75.74%). Moreover, GE-P-O(SL)-GA showed a higher algal oil release rate (79.54%), lipolysis degree (74.63%) and docosahexaenoic acid lipolysis efficiency (64.8%) in the in vitro digestion model. The viability of microencapsulated probiotics after simulated digestion and long-term storage at -18,4 and 25 degrees C was in the order: GE-P-O(SL)-GA > GE-P-O-GA > GE-P-GA. CONCLUSIONAs a result of its amphiphilic properties, SL strongly affected the physicochemical properties of probiotics and algal oil complex coacervates, resulting in higher stability and more effective lipolysis. Thus, the GE-P-O(SL)-GA can more effectively deliver probiotics and docosahexaenoic acid to the intestine, which provides a reference for the preparation of high-viability and high-lipolysis probiotics-algal oil microcapsules. (c) 2022 Society of Chemical Industry.

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