期刊
FOOD CHEMISTRY
卷 343, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.128541
关键词
Seed-used pumpkin powders; Particle size; In vitro digestion; Carotenoids contents; Antioxidant capacity
资金
- Science and Technology Innovation Project of Chinese Academy of Agricultural Sciences [CAAS-ASTIP-2020-IFST-04]
- Central Public-interest Scientific Institution Basal Research Fund [S2020JBKY-17]
- Special Fund for Agroscientific Research in the Public Interest [201503142]
The study showed that smaller particle size and addition of oil can improve the bioaccessible amounts of carotenoids and antioxidant capacity of SUPF powders.
Powders made from seed-used pumpkin flesh (SUPF) are potential sources of carotenoids. In this study, unexplored effects of particle size and corn oil on bioaccessible amounts of carotenoids and antioxidant capacity of SUPF powders during in vitro digestion process were investigated. Overall, total carotenoid relative bioaccessibility (TCRB) of 100 mesh-sized powder (100 MP, 15.46%) was higher than that of 18 mesh-sized powder (18 MP, 12.94%). With the addition of 2% corn oil, TCRB increased 108.35% (18 MP) and 88.55% (100 MP), respectively. Lutein (27160 mu g/100 g) and beta-carotene (>5192 mu g/100 g) were main carotenoid monomers in SUPF and significantly correlated with DPPH radical scavenging activity of digestive supernatant (p < 0.05). Notably, DPPH radical scavenging activity of 18 MP increased 96.54% with corn oil. These results implied that smaller particle size and oil addition could improve bioaccessible amounts of carotenoids and antioxidant capacity of SUPF powders.
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