Study on a Fermented Whole Wheat : Phenolic Content, Activity on PTP1B Enzyme and In Vitro Prebiotic Properties

Fermented cereals, staple foods in Asia and Africa, are recently receiving a growing interest in Western countries. The object of this work is the characterization of a fermented wheat used as a food ingredient and dietary supplement. To this aim, the phenolic composition, the activity on protein tyrosine phosphatase 1B (PTP1B), an enzyme overexpressed in type-II diabetes, the in vitro prebiotic properties on Lactobacillus reuteri and the microbial composition were investigated. Basic and acidic hydrolysis were tested for an exhaustive recovery of bound phenols: the acidic hydrolysis gave best yields. Methyl ferulate and neocarlinoside were identified for the first time in wheat. The inhibitory power of the extracts of several batches were investigated on PTP1B enzyme. The product was not able to inhibit the enzyme, otherwise, for the first time, a complete inhibition was observed for schaftoside, a major C-flavonoid of wheat. The microbial composition was assessed identifying Lactobacillus, Enterococcus, and Pediococcus as the main bacterial species. The fermented wheat was a suitable substrate for the grown of L. reuteri, recognized for its health properties in the human gut. The proposed method for phenols is easier compared to those based on strong basic hydrolysis; our results assessed the bound phenols as the major fraction, differently from that suggested by the literature for fermented cereals.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:24

Enthalten in:

Molecules (Basel, Switzerland) - 24(2019), 6 vom: 21. März

Sprache:

Englisch

Beteiligte Personen:

Balli, Diletta [VerfasserIn]
Bellumori, Maria [VerfasserIn]
Paoli, Paolo [VerfasserIn]
Pieraccini, Giuseppe [VerfasserIn]
Di Paola, Monica [VerfasserIn]
De Filippo, Carlotta [VerfasserIn]
Di Gioia, Diana [VerfasserIn]
Mulinacci, Nadia [VerfasserIn]
Innocenti, Marzia [VerfasserIn]

Links:

Volltext

Themen:

Cereal
EC 3.1.3.48
Journal Article
Lactobacillus reuteri
Methyl ferulate
PTPN1 protein, human
Phenols
Prebiotics
Protein Tyrosine Phosphatase, Non-Receptor Type 1
RNA, Ribosomal, 16S
Schaftoside

Anmerkungen:

Date Completed 15.07.2019

Date Revised 04.12.2021

published: Electronic

Citation Status MEDLINE

doi:

10.3390/molecules24061120

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM295244399