This research evaluated the effect of an in vitro gastrointestinal digestion on the concentration
of vitamin C, phenolic compounds, isoflavones, carotenoids, as well as antioxidant
activity of a beverage containing a blended fruit juice and soymilk (BFJ–SMB). Additionally,
the influence of the food matrix on the bioaccessibility of these compounds was studied.
BFJ–SMB hydrophilic constituents displayed higher bioaccessibility (12–26.5%) than those
lipophilics (6.5–13.8%). The most bioaccessible compounds were quercetin and genistein,
while cis-violaxanthin+neoxanthin were the lowest. Several compounds were less bioaccessible
in BFJ–SMB (6.5–14%) with respect to those of BFJ or SM. Conversely, phenolic acids
and aglycone isoflavones displayed their highest bioaccessibility in BFJ–SMB. Results
showed that both the in vitro gastrointestinal digestion and the food matrix exerted a
significant influence on the bioaccessibility of these compounds. BFJ–SMB can be considered
as a beverage with an important nutritional quality and highly bioaccessible
substances.
This research evaluated the effect of an in vitro gastrointestinal digestion on the concentrationof vitamin C, phenolic compounds, isoflavones, carotenoids, as well as antioxidantactivity of a beverage containing a blended fruit juice and soymilk (BFJ–SMB). Additionally,the influence of the food matrix on the bioaccessibility of these compounds was studied.BFJ–SMB hydrophilic constituents displayed higher bioaccessibility (12–26.5%) than thoselipophilics (6.5–13.8%). The most bioaccessible compounds were quercetin and genistein,while cis-violaxanthin+neoxanthin were the lowest. Several compounds were less bioaccessiblein BFJ–SMB (6.5–14%) with respect to those of BFJ or SM. Conversely, phenolic acidsand aglycone isoflavones displayed their highest bioaccessibility in BFJ–SMB. Resultsshowed that both the in vitro gastrointestinal digestion and the food matrix exerted asignificant influence on the bioaccessibility of these compounds. BFJ–SMB can be consideredas a beverage with an important nutritional quality and highly bioaccessiblesubstances.
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