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BioMed Research International
Volume 2017, Article ID 6582038, 10 pages
https://doi.org/10.1155/2017/6582038
Research Article

Antimicrobial Activity and Chemical Composition of “Kpètè-Kpètè”: A Starter of Benin Traditional Beer Tchoukoutou

1Laboratoire de Biologie et de Typage Moléculaire en Microbiologie, Université d’Abomey-Calavi, 05 BP 1604 Cotonou, Benin
2Laboratoire de Valorisation et de Gestion de la Qualité de Bioingrédient Alimentaire, Université d’Abomey-Calavi, 01 BP 526 Cotonou, Benin
3Laboratoire de Pharmacognosie et des Huiles Essentielles, FSS, Université d’Abomey-Calavi, 01 BP 4521 Cotonou, Benin

Correspondence should be addressed to Lamine Baba-Moussa; rf.oohay@diasenimal

Received 3 August 2016; Accepted 6 February 2017; Published 6 March 2017

Academic Editor: Gail B. Mahady

Copyright © 2017 Christine N’tcha et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of this study was to investigate the antibacterial effect of the crude starter “kpètè-kpètè” and lactic acid bacteria used during the production of “tchoukoutou.” To achieve this, a total of 11 lactic acid bacteria and 40 starter samples were collected from four communes. The samples were tested on 29 gram + and − strains by disk diffusion method. The minimum inhibitory and bactericidal concentrations of starter and lactic acid bacteria were determined by conventional methods. Organic acids, sugar, and volatile compounds were determined using the HPLC method. The “kpètè-kpètè” displays a high antibacterial activity against the tested strains. The most sensitive strain was S. epidermidis (12.5 mm) whereas the resistance strain was Proteus mirabilis (8 mm). All the tested ferment has not any inhibitory effect on Enterococcus faecalis. The lactic acid bacteria isolates of Parakou showed the highest (17.48 mm) antibacterial activity whereas the smallest diameter was obtained with the ferment collected from Boukoumbé (9.80 mm). The starters’ chemical screening revealed the presence of tannins, anthocyanin flavonoids, triterpenes, steroids, reducing compounds, and mucilage O-glycosides. These compounds are probably the source of recorded inhibition effect. The lactic acid bacteria of the “kpètè-kpètè” could be used to develop a food ingredient with probiotic property.