Bioaccessibility and gut metabolism of phenolic compounds of breads added with green coffee infusion and enzymatically bioprocessed.

Abstract:

:This study aimed at investigating two strategies to enhance the bioaccessibility of phenolic compounds from whole-wheat breads: enzymatic bioprocessing and addition of green coffee infusion. Although both strategies had a significant effect on increasing the contents of total soluble phenolic compounds in breads, the addition of green coffee infusion was much more relevant (19.1-fold) than enzymatic bioprocessing (1.8-fold). The phenolic compounds present as soluble forms were completely released from all breads' matrix already at the oral phase of digestion. While gastric digestion did not promote the release of insoluble phenolic compounds, intestinal conditions led to a slight release. All bread samples showed maximum phenolic compounds bioaccessibility after 4 h of gut fermentation. Upon the end of in vitro digestion and gut fermentation, the difference between the strategies was that enzymatic bioprocessing accelerated ferulic acid release, while the addition of green coffee infusion increased 10.4-fold the overall phenolic compounds bioaccessibility.

journal_name

Food Chem

journal_title

Food chemistry

authors

de Almeida SS,da Costa GBM,Barreto MS,Freire DMG,Lobo LA,Domingues RMCP,Moura-Nunes N,Monteiro M,Perrone D

doi

10.1016/j.foodchem.2020.127473

subject

Has Abstract

pub_date

2020-12-15 00:00:00

pages

127473

eissn

0308-8146

issn

1873-7072

pii

S0308-8146(20)31335-2

journal_volume

333

pub_type

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