期刊
FOOD RESEARCH INTERNATIONAL
卷 124, 期 -, 页码 200-205出版社
ELSEVIER
DOI: 10.1016/j.foodres.2018.05.028
关键词
Carotenoids; Anthocyanins; Betalains; Stability; Processing effects; Chemical reactions; Degradation; Health effects
Extensive structure elucidation has revealed a remarkable diversity of structures for carotenoids, anthocyanins, and betalains, the major natural pigments in plant-derived foods. Composition, stability, influencing factors, processing effects have been widely investigated. Carotenoids isomerize and oxidize while anthocyanins undergo hydrolysis, nucleophilic attack of water, ring fission, and polymerization during thermal processing. Betacyanins suffer deglycosylation, isomerization, dehydrogenation, hydrolysis, and decarboxylation. Biotechnological production dominates research on carotenoids as food colorants while the search for plant sources continues with anthocyanins and betalains. Stabilization studies presently focus on microencapsulation and na-noencapsulation. For anthocyanins, co-pigmentation has also been intensely researched. Carotenoids have been the most studied in terms of health effects, involving epidemiological, cell, animal, and human intervention studies, yet some inconsistencies in the results persist. A wide range of biological activities have been attributed to anthocyanins and betalains, based mainly on cell and animal studies; human clinical studies are lacking.
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