中国食品学报2023，Vol.23Issue(12)：179-187,9.DOI:10.16429/j.1009-7848.2023.12.019
低共熔溶剂提取小米糠多酚及微胶囊制备
Low Eutectic Solvent Extraction of Polyphenols from Millet Bran and Its Microcapsule Preparation
摘要
Abstract
Millet bran is rich in nutrients and bioactive components.Polyphenols play an important role as one of the active components,but their properties are not very stable and are prone to oxidative degradation under certain condi-tions.In this paper,we extracted polyphenols from millet bran by ultrasonic combined with DESs and prepared micro-capsules by embedding them to study their physicochemical properties.The results showed that the total polyphenol con-tent of millet bran was 10.58 mg/g under the conditions of ultrasonic-assisted extraction for 30 min at 45 ℃ with a mate-rial-liquid ratio of 1∶36 g/mL.After the microcapsules were prepared,the structure of millet bran polyphenol microcap-sules was analyzed by scanning electron microscopy,and it was found that the outer surface of the microcapsules was smooth and the particles were of uniform size.The infrared spectrum showed that the yeast cells had a good effect on the encapsulation of millet bran polyphenols;in the simulated gastric juice,the release of millet bran polyphenol micro-capsules was faster than in the simulated intestinal juice,and the core material was released up to 96％within 2 h,and the core material was basically released completely after 5 h.Microencapsulation increased the stability performance of millet bran polyphenols,and provided the theoretical basis for the deep development and utilization of millet bran.关键词
小米糠/多酚/低共熔溶剂/提取/微胶囊Key words
millet bran/polyphenols/low eutectic solvent/extraction/microencapsulation引用本文复制引用
朱俊玲,梁凯,王春艳,王晓闻..低共熔溶剂提取小米糠多酚及微胶囊制备[J].中国食品学报,2023,23(12):179-187,9.基金项目
山西农谷建设科研专项项目(SXNGJSKYZX201901) （SXNGJSKYZX201901）
