Optimization of lactic acid bacteria viability using fuzzy soft set modelling

Reyhan Irkin; Nihal Yilmaz Ozgur; Nihal Tas

doi:10.11121/ijocta.01.2018.00457

Authors

Reyhan Irkin
Nihal Yilmaz Ozgur Balikesir University http://orcid.org/0000-0002-8152-1830
Nihal Tas

DOI:

https://doi.org/10.11121/ijocta.01.2018.00457

Keywords:

Pickle, salt concentration, Lactic acid bacteria, optimization, fuzzy soft set

Abstract

Lactic acid fermented vegetables are important sources of vitamins and minerals. In recent years consumers demand for non-dairy based functional products has increased. Cabbage pickle has high enough concentrations of fiber and also it may show health effect with the containing high numbers of lactic acid bacteria. The aim of this study is to optimize mathematically cabbage-carrot pickle fermentation for the viability of Lactobacillus acidophilus, Lactobacillus casei cultures and the sensory scores in brine with 5% and 7% (w/v) salt concentrations. Viability optimization of lactic acid bacteria is done via the notion of “fuzzy soft set” method. Lb. casei, Lb. acidophilus, total lactic acid bacteria, Enterobacteriaceae sp., yeast-mould counts and pH values have been reported during the 30 days of storage. The results are compared with the control traditional fermented cabbage-carrot pickle. Organoleptic properties are evaluated. We conclude that the fermented pickle samples contain a significant number of beneficial lactic acid bacteria and high sensory marks at the end of the storage.

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