期刊
FOOD CHEMISTRY
卷 223, 期 -, 页码 1-7出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.12.020
关键词
Antioxidants; Food matrix; Fortification; Green coffee; Phenolic compounds; Soymilk
This study investigated the effect of soymilk fortification with green coffee extract (GCE) on phenolic contents, antioxidant capacity, relative in vitro digestibility of proteins and starch, and consumer acceptance. Special attention was paid to the effect of phenolics-food matrix interactions on fortification efficiency. Soymilk was enriched with GCE extracts containing 0.025-1 mg of phenolics per 1 mL-samples M1-M6. Compared to control, an increase in phenolic contents of up to 70% (M6) was observed for potentially bioaccessible fractions (AD). The antiradical activity and reducing power were also about 1.9 and 10.1 times higher, respectively. However, the determined phenolic and antioxidant activities differed from those predicted. Fortification improved the digestibility of nutrients when higher doses of GCE was introduced (M4-M6). The addition of GCE at an adequate dose allowed the production of a beverage with elevated hedonic properties. In conclusion, fortification was a successful in improving the pro-health status of soymilk. (C) 2016 Elsevier Ltd. All rights reserved.
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