Sweet tea extract encapsulated by different wall material combinations with improved physicochemical properties and bioactivity stability

文献类型: 外文期刊

第一作者: Deng, Qingyue

作者: Deng, Qingyue;Han, Lishu;Tang, Chengjiang;Ma, Yue;Min, Douyong;Liu, Xiaoling;Jiang, Hongrui;Lao, Shuibing

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关键词: Sweet tea extract; encapsulation; wall material combinations; spray-drying; in vitro gastrointestinal digestion

期刊名称:JOURNAL OF MICROENCAPSULATION ( 影响因子:3.9; 五年影响因子:3.7 )

ISSN: 0265-2048

年卷期: 2024 年

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收录情况: SCI

摘要: Aim: To prepare sweet tea extract microcapsules (STEMs) via a spray-drying by applying different wall material formulations with maltodextrin (MD), inulin (IN), and gum arabic (GA). Methods: The microcapsules were characterised by yield, encapsulation efficiency (EE), particle size, sensory evaluation, morphology, attenuated total reflectance-Fourier transform infra-red spectroscopy and in vitro digestion studies. Results: The encapsulation improved the physicochemical properties and bioactivity stability of sweet tea extract (STE). MD5IN5 had the highest yield (56.33 +/- 0.06% w/w) and the best EE (e.g. 88.84 +/- 0.36% w/w of total flavonoids). MD9GA1 obtained the smallest particle size (642.13 +/- 4.12 nm). MD9GA1 exhibited the highest retention of bioactive components, inhibition of alpha-glucosidase (96.85 +/- 0.55%), alpha-amylase (57.58 +/- 0.99%), angiotensin-converting enzyme (56.88 +/- 2.20%), and the best antioxidant activity during in vitro gastrointestinal digestion. Conclusion: The encapsulation of STE can be an appropriate way for the valorisation of STE with improved properties.

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