Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China; Department of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China; Department of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
Food Chem. 2021 May 1;343:128541. doi: 10.1016/j.foodchem.2020.128541. Epub 2020 Nov 13.
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 µg/100 g) and β-carotene (≥5192 µg/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.
由种子使用的南瓜肉（SUPF）制成的粉末是类胡萝卜素的潜在来源。在这项研究中，研究了粒径和玉米油对 SUPF 粉末在体外消化过程中类胡萝卜素生物可及量和抗氧化能力的未探索影响。总体而言，100 目粉末（100MP，15.46%）的总类胡萝卜素相对生物可及性（TCRB）高于 18 目粉末（18MP，12.94%）。添加 2%玉米油后，TCRB 分别增加了 108.35%（18MP）和 88.55%（100MP）。叶黄素（≥27160µg/100g）和β-胡萝卜素（≥5192µg/100g）是 SUPF 中的主要类胡萝卜素单体，与消化上清液的 DPPH 自由基清除活性显著相关（p<0.05）。值得注意的是，添加玉米油后，18MP 的 DPPH 自由基清除活性增加了 96.54%。这些结果表明，较小的粒径和添加油可以提高 SUPF 粉末中类胡萝卜素的生物可及量和抗氧化能力。
