Title :

IN VITRO BIODEGRADATION OF OLEUROPEIN BY LACTOBACILLUS PLANTARUM FSO175 IN STRESS CONDITIONS (pH, NaCl AND GLUCOSE)

Author(s) :

Ghabbour, Nabil [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Rokni, Yahya [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Abouloifa, Houssam [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Bellaouchi, Reda [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Chihib, Nour-Eddine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Ben Salah, Riadh [Auteur]
Centre de Biotechnologie de Sfax [CBS]
Lamzira, Zahra [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Saalaoui, Ennouamane [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Asehraou, Abdeslam [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier

Journal title :

Journal of Microbiology, Biotechnology and Food Sciences

Abbreviated title :

JMBFS

Volume number :

9

Pages :

769-773

Publisher :

Slovak University of Agriculture in Nitra

Publication date :

2020-02

ISSN :

1338-5178

English keyword(s) :

Biodegradation
Hydroxytyrosol
L. plantarum
Oleuropein
Stress conditions

HAL domain(s) :

Sciences du Vivant [q-bio]/Ingénierie des aliments

English abstract : [en]

The objective of this work is to study the oleuropein (OLP) biodegradation by a strain of Lactobacillus plantarum FSO175 under conditions (pH 4.5, NaCl 5% and glucose 1%), during 7 days of incubation at 30 °C, in modified ...
Show more >The objective of this work is to study the oleuropein (OLP) biodegradation by a strain of Lactobacillus plantarum FSO175 under conditions (pH 4.5, NaCl 5% and glucose 1%), during 7 days of incubation at 30 °C, in modified MRS broth containing OLP as carbon source. The results obtained, by HPLC analyses, showed that the biodegradation of OLP by L. plantarum FSO175, is accompanied with increase of hydroxytyrosol (HT) content and acidity values. The yields of OLP degradation and HT accumulation are depending on carbon sources, stress conditions and time of incubation. So that, the drastic reduction in OLP biodegradation, obtained at pH 6.7 (trial B), decreased significantly (p <0.05) in presence of NaCl 5% (trial D) and with glucose 1% (trial C). Indeed, the OLP biodegradation rate was maximal at pH 4.5 (trial E) and was higher even with NaCl 5% (trial F). In contrast, in presence of combined stress conditions (glucose 1%, pH 4.5 and NaCl 5%: trial G), the biodegradation of OLP decreased significantly (p <0.05). The effectiveness of the strain L. plantarum FSO175 in OLP biodegradation leading to variable yields of HT production, revealed its promising perspectives as starter culture, under controlled stress conditions of pH 4.5 and NaCl 5%, allowing the production of green table olives rich of HT, the main antioxidant highly desired in foods.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Submission date :

2021-01-27T14:41:26Z