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标题：In vitro bioaccessibility of macular xanthophylls from commercial microalgal powders of Arthrospira platensis and Chlorella pyrenoidosa
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作者：Cristina Tudor ; Elena Cristina Gherasim ; Francisc Vasile Dulf 等
期刊名称：Food Science & Nutrition
电子版ISSN：2048-7177
出版年度：2021
卷号：9
期号：4
页码：1896-1906
DOI：10.1002/fsn3.2150
出版社：John Wiley & Sons, Ltd.
摘要：The bioaccessibility of the major carotenoids present in two commercial microalgal supplements in powder form was investigated through a standardized in vitro digestion method. The dried biomass of Arthrospira platensis contained β‐carotene (36.8 mg/100 g) and zeaxanthin (20.8 mg/100 g) as the main carotenoids as well as a high content of saturated fatty acids (61% of total fatty acids), whereas that of Chlorella pyrenoidosa was rich in lutein (37.8 mg/100 g) and had a high level of unsaturated fatty acids (65% of total fatty acids). In the case of the latter, lutein bioaccessibility was not statistically enhanced after the replacement of porcine bile extract with bovine bile extract in the in vitro digestion protocol and after the addition of coconut oil (17.8% as against to 19.2% and 19.2% vs. 18.5%, respectively). In contrast, the use of bovine bile extract along with co‐digestion with coconut oil significantly enhanced the bioaccessibility of zeaxanthin from A. platensis , reaching the highest bioaccessibility of 42.8%.
关键词：bioaccessibility;carotenoids;dietary supplements;microalgae;simulated digestion; Spirulina