Effects of Se(IV) or Se(VI) enrichment on proteins and protein-bound Se distribution and Se bioaccessibility in oyster mushrooms

•Successful production of Se-enriched mushrooms.•Pleurotus djamor has the greatest potential to uptake and accumulate Se.•SeMet was identified in Se-enriched white oyster mushroom.•SeCys2, MSC, and SeMet were identified in Se-enriched pink oyster mushrooms.•Mostly there are soluble and bioaccessible...

Full description

Saved in:
Bibliographic Details
Published in:Food chemistry 2022-07, Vol.383, p.132582-132582, Article 132582
Main Authors: de Oliveira, Aline Pereira, Naozuka, Juliana, Landero-Figueroa, Julio Alberto
Format: Article
Language:English
Subjects:
Agaricales - chemistry
Bioaccessibility
bioavailability
Dietary Supplements
digestion
Edible mushrooms
Enrichment
food chemistry
gastrointestinal system
Humans
methylselenocysteine
mushrooms
oysters
Pleurotus - chemistry
Pleurotus djamor
Pleurotus ostreatus
Proteins
Selenium
Selenoaminoacids
selenomethionine
Selenomethionine - metabolism
species identification
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Successful production of Se-enriched mushrooms.•Pleurotus djamor has the greatest potential to uptake and accumulate Se.•SeMet was identified in Se-enriched white oyster mushroom.•SeCys2, MSC, and SeMet were identified in Se-enriched pink oyster mushrooms.•Mostly there are soluble and bioaccessible Se species in enriched mushrooms.•The bioaccessible Se species were associated to low molecular weight proteins. A successful mushroom enrichment process must produce foods that have compounds potentially absorbed by the human body. In this study, Pleurotus ostreatus and Pleurotus djamor mushrooms were grown on organic substrate supplemented with different Se(IV) and Se(VI) concentrations, and evaluated in the following features: Fruiting bodies morphology; Se uptake and accumulation; Distribution of proteins and protein-bound Se; Se species identification on enzymatic extracts; Se bioaccessibility; and Distribution of bioaccessible protein-bound Se. Pleurotus djamor grown on Se(IV)-supplemented substrate showed the greatest potential to uptake and accumulate Se. For Se species screening, selenomethionine was identified in white oyster mushroom, while selenomethionine, selenocystine, and Se-methylselenocysteine in pink oyster mushrooms. In soluble fractions from in vitro gastrointestinal digestion assays, Se showed high bioaccessibility (>94%). Lastly, bioaccessible Se species were found to be mainly associated to LMW (
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2022.132582