Storage Stability and In Vitro Bioaccessibility of Liposomal Betacyanins from Red Pitaya (Hylocereus polyrhizus)
文献类型: 外文期刊
作者: Lin, Xian 1 ; Li, Bozhe 1 ; Wen, Jing 1 ; Wu, Jijun 1 ; Tang, Daobang 1 ; Yu, Yuanshan 1 ; Xu, Yujuan 1 ; Xu, Baojun 2 ;
作者机构: 1.Guangdong Acad Agr Sci, Key Lab Funct Foods, Sericultural & Agri Food Res Inst, Guangdong Key Lab Agr Prod Proc,Minist Agr & Rura, Guangzhou 510610, Peoples R China
2.BNU HKBU United Int Coll, Food Sci & Technol Program, Zhuhai 519087, Peoples R China
关键词: red pitaya; betacyanin; liposome; storage stability; bioaccessibility
期刊名称:MOLECULES ( 影响因子:4.927; 五年影响因子:5.11 )
ISSN:
年卷期: 2022 年 27 卷 4 期
页码:
收录情况: SCI
摘要: In order to address the poor stability of the betacyanins from red pitaya (Hylocereus polyrhizus, HP), which are considered as good sources of natural colorant, liposomal-encapsulation technique was applied in this study. Thin-layer dispersion method was employed to prepare HP betacyacnin liposomes (HPBL). The formulation parameters for HPBL were optimized, and the characteristics, stability, and release profile of HPBL in in vitro gastrointestinal systems were evaluated.Results showed that an HP betacyanin encapsulation efficiency of 93.43 +/- 0.11% was obtained after formulation optimization. The HPBL exhibited a narrow size distribution of particle within a nanometer range and a strong electronegative zeta-potential. By liposomal encapsulation, storage stability of HP betacyanin was significantly enhanced in different storage temperatures. When the environmental pH ranged from 4.3-7.0, around 80% of HP betacyanins were preserved on Day 21 with the liposomal protection. The loss of 2,2 '-Diphenyl-picrylhydrazyl (DPPH) scavenging activity and color deterioration of HPBL were developed in accordance with the degradation of HP betacyanins during storage. In in vitro gastrointestinal digestion study, with the protection of liposome, the retention rates of HP betacyanins in vitro were enhanced by 14% and 40% for gastric and intestinal digestion, respectively.This study suggested that liposomal encapsulation was an effective approach to stabilize HP betacyanins during storage and gastrointestinal digestion, but further investigations were needed to better optimize the liposomal formulation and understand the complex liposomal system.
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