Nihal YILMAZ ÖZGÜR, Nihal TAŞ, Reyhan İRKİN

Optimization of lactic acid bacteria viability using fuzzy soft set modelling

Lactic acid fermented vegetables are important sources of vitamins and minerals.In recent years consumers demand for non-dairy based functional productshas increased. Cabbage pickle has high enough concentrations of fiber and alsoit may show health effect with the containing high numbers of lactic acid bacteria.The aim of this study is to optimize mathematically cabbage-carrot picklefermentation for the viability of Lactobacillus acidophilus, Lactobacillus caseicultures 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 reportedduring the 30 days of storage. The results are compared with the control traditionalfermented cabbage-carrot pickle. Organoleptic properties are evaluated.We conclude that the fermented pickle samples contain a significant number ofbeneficial lactic acid bacteria and high sensory marks at the end of the storage.

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Tokatlı, M., Gülgör, G., Elmacı, S.B., ˙I¸sleyen, N.A., Oz¸celik, F. (2015). In vitro properties of potential pro- biotic indigenous lactic acid bacteria originating from traditional pickles. BioMed. Res. Int., 1, 1-8.
Tamang, J.P., Tamang, B., Schillinger, U., Guigas, C., Holzapfel, W.H. (2009). Functional properties of lactic acid bacteria isolated from ethnic fermented vegetables of the Himalayas. Int. J. Food Microbiol., 135, 28-33.
Divya, J.B., Varsha, K.K., Madhavan, K., Ismail, N.B., Pandey, A. (2012). Probiotic fermented foods for health benefits. Eng. Life Sci., 12, 377-390.
Kos, B., Suskovic, J., Beganovic, J., Gjuracic, K., Frece, J., Iannaccone, C., Canganella, F. (2008). Characterization of the three selected probiotic strains for the application in food industry. World J. Microbiol. Biotechnol., 24, 699-707.
Surh, J., Kim, Y.K.L., Kwon, H. (2008). Korean fermented foods: Kimchi and Doenjang. In Handbook of Fermented Functional Foods. Edward, R.; Farnworth, T., Eds.; CRC Press, US 333-353.
Nagpal, R., Kumar, A., Kumar, M., Behare, P.V., Jain, S., Yadav, H. (2012). Probiotics, their health benefits and applications for developing healthier foods: a review. FEMS Microbiol. Lett., 334, 1-15.
Wacher, C., Diaz-Ruiz, G., Tamang, J.P. (2010). Fermented Vegetable Products. In Fermented Foods and Beverages of the World; Tamang J.P. ; Kaialasapathy, K., Eds.; CRC Press, US 149-190.
Zhou, F., Zhao, H., Bai, F., Dziugan, P., Liu, Y., Zhang, B. (2014). Purification and characterisation of the bacteriocin produced by Lactobacillus plantarum, isolated from Chinese pickle. Czech J. Food Sci., 32, 430-436.
Bengmark, S. (2010). Lactic acid Bacteria and Plant Fibers: Treatment in acute and chronic human disease. In Prebiotics and Probiotics ingredients, Health Benefits and Food Applications; Cho, S.S.; Finocchiaro, E.T., Eds.; CRC Press, US 163-192.
Montet, D., Ray, R.C., Zakhia-Rozis, N. (2015). Lactic acid fermentation of vegetables and fruits. In Microorganisms and Fermentation of Traditional Foods; Ray R.C.; Montet D., Eds.; CRC Press, US 108-141.
Furtado-Martins, E.M., Ramos, A.M., Vanzela, E.S.L., Stringheta, P.C., Pinto, C.L.O., Martins, J.M. (2013). Products of vegetable origin: A new alternative for the consumption of probiotic bacteria. Food Res. Int., 51, 764770.
Yoon, K.Y., Woodams, E.E., Hang, Y.D. (2009). Production of probiotic cabbage juice by lactic acid bacteria. Biores. Technol., 97, 14271430.
Zhao, D., Ding, X. (2008). Studies on the low-salt Chinese potherb mustard (Brassica juncea, Coss.) pickle. I—The effect of a homofermentative L(+) -lactic acid producer Bacillus coagulans on starter culture in the low-salt Chinese potherb mustard pickle fermentation. LWT-Food Sci. Technol., 41(3), 474-482.
Penas, E., Frias, J., Sidro,B., Vidal-Valverde, C. (2010). Impact of fermentation conditions and refrigerated storage on microbial quality and biogenic amine content of sauerkraut. Food Chem.. 123, 143-150.
Lin, S.H., Li, Y. H., Leung, K., Huang, C.Y., Wang, X.R. (2014). Salt processed food and gastric cancer in a Chinese population. As. Pac. J. Cancer Prev., 15(13), 5293-5298.
Kalaichelvi, A., Malini, P. H. (2011). Application of fuzzy soft sets to investment decision making problem. Int. J. Math. Sci. Appl., 1(3), 1583-1586.
Yüksel, S., Dizman, T., Yıldızdan, G., Sert, U. (2013). Application of soft sets to diagnose the prostate cancer risk. J. Inequal Appl., 1, 229-240.
Ozgür, N.Y., Tas, N. (2015). A note on “Applica- ¨ tion of Fuzzy Soft Sets to Investment Decision Making Problem”. J. New Theory., 1(7), 1-10.
Maji, P.K., Biswas, R., Roy, A.R. (2002). An Application of Soft Set in a Decision Making Problem. Comput. Math. Appl. 44(8-9), 1077-1083.
Roy, A.R., Maji, P.K. (2007). A Fuzzy Soft Set Theoretic Approach to Decision Making Problems. J. Comput. Appl. Math., 203(2), 412-418.
Ng, E.W.Y. (2009). Effect of starter cultures on Lactobacillus acidophilus and gene expression in yogurt. Thesis of California Polytechnic State University, San Luis Obispo, US 108 p.
Oh, S., Rheem, S., Sim, J., Kim, S., Baek, Y.J. (1995). Optimizing Conditions for the Growth of Lactobacillus casei YIT 9018 in Tryptone-Yeast ExtractGlucose Medium by Using Response Surface Methodology. Appl. Environ. Microbiol., 61(11), 3809-3814.
Zhao, D., Tang, J., Ding, X. (2007). Analysis of volatile components during potherb mustard (Brassica juncea, Coss.) pickle fermentation using SPME– GC-MS. LWT-Food Sci. Technol., 40, 439-447.
Inatsu, Y., Bari, M.L., Kawasaki, S., Kawamoto, S. (2005). Effectiveness of some natural antimicrobial compounds in controlling pathogen or spoilage bacteria in lightly fermented Chinese cabbage. J. Food Sci., 70(9), 393-397.
Jagannath, P., Raju, P.S., Bawa, A. S. (2012). A Twostep controlled lactic fermentation of cabbage for improved chemical and microbiological qualities. J. Food Qual., 35, 13-20.
Maji, P.K., Biswas, R., Roy, A.R. (2001). Fuzzy Soft Sets. J. Fuzzy Math., 9, 589-602.
Kearney, N., Stanton, C., Desmond, C., Coakley, M., Collins, J. K., Fitzgerald, G., Ross, R.P. (2008). Challenges associated with the development of probioticcontaining Functional foods. In Handbook of Fermented Functional Foods; Edward, R.; Farnworth, T., Eds.; CRC Press, US 25-71.
Beganovic, J., Pavunc, A. L., Gjuracic, K., Spoljarec, M., Suskovic, J., Kos, B. (2011). Improved sauerkraut production with probiotic strain Lactobacillus plantarum L4 and Leuconostoc mesenteroides LMG 7954. J. Food Sci. 76(2), 124-129.
Xiong, T., Guan, Q., Song, S., Hao, M., Xie, M. (2012). Dynamic changes of lactic acid bacteria flora during Chinese sauerkraut fermentation. Food Control. 26, 178-181.
Weng, P.F., Wu, Z.F., Lei, L.L. (2013). Predictive models for growth of Leuconostoc citreum and its Dynamics in pickled vegetables with low salinity. J. Food Proces. Eng., 36, 284-291.
Viander, B., Maki, M.M., Palva, A. (2003). Impact of low salt concentration, salt quality on natural largescale sauerkraut fermentation. Food Microbiol., 20, 391-395.
Cvetkovic, B.R., Pezo, L. L., Tasic, T., Saric, L., Kevresan, Z., Mastilovic, J. (2015). The optimisation of traditional fermentation process of white cabbage (in relation to biogenic amines and polyamines content and microbiological profile). Food Chem. 168, 471-477.
Yoon, K.Y., Woodams, E. E., Hang, Y. D. (2005). Fermentation of beet juice by beneficial lactic acid bacteria. LWT- Food Sci. Technol., 38, 73-75.
Irkin, R., Songun, G.E. (2012). Applications of probiotic bacteria to the vegetable pickle products. Sci. Rev. Chem. Com., 2(4), 562-567.
Heperkan, D. (2013). Microbiota of table olive fermentations and criteria of selection for their use as starters. Front. Microbiol., 4(143), 1-11.
Weon, M.K., Lee, Y.J. (2013). Consumer’s perception, preference and intake frequency of Jangachi (Korean Pickle) by age for developing low salt Jangachi. Korean J. Cul. Res., 19(5), 249-263.