title: Soymilk enriched with green coffee phenolics - Antioxidant and nutritional properties in the light of phenolics-food matrix interactions.
abstract: 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 0.025-1mg of phenolics per 1mL-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.
authors.affiliation: Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna Str. 8, 20-704 Lublin, Poland. Electronic address: seczyklukasz@gmail.com.
authors.forename: Łukasz
authors.initials: Ł
authors.lastname: Sęczyk
authors.affiliation: Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna Str. 8, 20-704 Lublin, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Świeca
authors.affiliation: Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna Str. 8, 20-704 Lublin, Poland.
authors.forename: Urszula
authors.initials: U
authors.lastname: Gawlik-Dziki
mesh_terms: D000328:Adult; D000975:Antioxidants / Q000032:analysis / Q000378:metabolism*; D003069:Coffee / Q000737:chemistry / Q000378:metabolism*; D005260:Female; D005527:Food, Fortified / Q000032:analysis; D018565:Food-Drug Interactions / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009753:Nutritive Value / Q000276:immunology*; D010636:Phenols / Q000032:analysis / Q000378:metabolism*; D010936:Plant Extracts / Q000032:analysis / Q000378:metabolism; D041942:Soy Milk / Q000737:chemistry / Q000378:metabolism*; D055815:Young Adult
chemical_list: D000975:Antioxidants; D003069:Coffee; D010636:Phenols; D010936:Plant Extracts
keywords: Antioxidants; Food matrix; Fortification; Green coffee; Phenolic compounds; Soymilk