Inulin ve Hi-maize ile Zenginleştirmenin Probiyotik Yoğurdun Asitliğine ve Starter Kültür Canlılığına Etkisi

Anahtar Kelimeler:

Probiyotik yoğurt, inulin, Hi-maize, asitlik, canlılık

Influence of Fortification with Inulin and Hi-maize on Acidity and Viability of Starter Culture in Probiotic Yoghurt

In this study, the effect of fortification with inulin and resistant starch (Hi-maize) on yoghurt starter and probiotic bacteria survival, as well as acidity properties of set-type probiotic yoghurt containing Lactobacillus acidophilus were investigated. Milk was fortified with inulin or Hi-maize at 2% and 4% ratios whereas control group had no supplement. Samples fortified with Hi-maize had higher lactic acid value than those fortified with same ratio of inulin. Lactic acid percentages increased significantly in all probiotic yoghurts at the end of storage in comparison to the first day (p<0.05). The highest viable counts of Streptococcus thermophilus were enumerated in the sample fortified with 2% Hi-maize during 14 days of storage. The control sample had as high viable counts of Lactobacillus bulgaricus as the sample fortified with 4% Hi-maize, except first day of the storage. The highest viability of L. acidophilus was detected in control and the sample fortified with 4% Hi-maize on 7th and 14th day whereas the highest value was reported for the control sample at the end of the storage. L.acidophilus populations ranged from 6.30 to 7.95 log cfu/g in probiotic yoghurts during 21 days of refrigerated storage. Therefore, all experimental yoghurts presented probiotic viability above the minimum recommended level of 6 log cfu/g suggested for beneficial health effects.

Keywords:

Probiotic yoghurt, inulin, Hi-maize, acidity, viability,

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Akalın, A.S. and G. Ünal. 2010. The influence of milk supplementation on the microbiological stability and textural characteristics of fermented milk. Milchwissenschaft, 65 (3):291-294.
Akalın, A.S., G. Ünal, N. Dinkçi and A.A. Hayaloğlu. 2012. Microstructural, textural, sensory characteristics of probiotic yogurts fortified with sodium calcium caseinate or whey protein concentrate. Journal of Dairy Science, 95:3617-3628.
AOAC, 1995. Official Methods of Analysis, 16th edn. Gaithersburg MD, sec. 33.2.11, Method 991.20.
Balthazar, C.F., L.V. Gaze, H.L.A. Da Silva, C.S. Pereira, R.M. Franco, C.A. Conte-Junior, M.Q. De Freitas and A.C. De Oliveira Silva. 2015. Sensory evaluation of ovine milk yoghurt with inulin addition. International Journal of Dairy Technology, 68(2):281-290.
Barat, A. and T. Özcan. 2016. The Effect of Fruit Addition on the Growth of Probiotic Bacteria in Fermented Milk Beverage. The Journal of Ege University Faculty of Agriculture, 53:259-267.
Bozanic, R., I. Rogelj and L. Tratnik. 2002. Fermentation and storage of probiotic yoghurt from goat milk. Mljekarstvo, 52:93-111.
Champagne, C.P., R.P. Ross, M. Saarela, K.F. Hansen and D. Charalampopoulos. 2011. Recommendations for the viability assessment of probiotics as concentrated cultures and in food matrices. International Journal of Food Microbiology, 149:185-193.
Damin, M. R., E. Minowa, M. R. Alcântara and M. N. Oliveira. 2008. Effect of cold storage on culture viability and some rheological properties of fermented milk prepared with yogurt and probiotic bacteria. Journal of Texture Studies, 39:40–55.
Dave, R. I. and N.P. Shah. 1996. Evaluation of media for selective enumeration of Streptococcus thermophilus, Lactobacillus delbrueckii ssp. bulgaricus, Lactobacillus acidophilus, and Bifidobacteria. Journal of Dairy Science, 79:1524-1536.
Dave, R. I. and N. P. Shah. 1998a. Ingredient supplementation effects on viability of probiotic bacteria in yogurt. Journal of Dairy Science, 81:2804–2816.
Dave, R. I., and N. P. Shah. 1998b. The influence of ingredient supplementation on the textural characteristics of yogurt. Australian Journal of Dairy Technology, 53:180–184.
Donkor, O.N., S.L.I. Nilmini, P. Stolic, T. Vasiljevic and N.P. Shah, 2007. Survival and activity of selected probiotic organisms in set-type yoghurt during cold storage International Dairy Journal, 17:657-665.
de Souza Oliveira, R.P., P. Perego, M.N. de Oliveira and A. Converti. 2011. Effect of inulin as prebiotic and symbiotic interactions between probiotics to improve fermented milk firmness. Journal of Food Engineering, 107:36-40.
Fuentes-Zaragoza, E. M.J. Riquelme-Navarrete, E., Sanchez-Lapata and J.A. Perez-Alvarez. 2010. Resistant starch as functional ingredient: A review. Food Research International, 43:931-942.
Guven M., K. Yasar, O.B. Karaca and A.A. Hayaloglu. 2005. The effect of inulin as a fat replacer on the quality of set-type low-fat yogurt manufacture. International Journal of Dairy Technology, 58: 180–184.
Guzmán-González, M., F. Morais, M. Ramos and L. Amigo. 1999. Influence of skimmed milk concentrate replacement by dry dairy products in a low fat set-type yoghurt model system. I: Use of whey protein concentrates, milk protein concentrates and skimmed milk powder. Journal of the Science of Food and Agriculture, 79:1117–1122.
Hasani, S., I. Khodadadi and A. Heshmati. 2016. Viability of Lactobacillus acidophilus in rice bran-enriched attired yoghurt and the physicochemical and sensory characteristics of product during refrigerated storage. International Journal of Food Science and Technology, 51:2485-2492.
Heydari, S., A.M. Mortazavian, M.R. Ehsani, M.A. Mohammadifar, H. Ezzatpanah. 2011. Biochemical, Microbiological and Sensory Characteristics of Probiotic Yogurt Containing Various Prebiotic Compounds. Italian Journal of Food Science, 23:153-163.
Homayouni, A., A. Amini, A.K. Khodavirdiv, A.M. Mortazavian, K. Esadeh and S. Pourmoradian. 2013. Resistant starch in food industry: A changing outlook for consumer and producer. Starch-Starke, 65:1-13.
Iltar, R., A. Asci and A. Kucukcetin. 2012. Viability and in vitro properties of Lactobacillus acidophilus used in yoghurt as influenced by inulin addition. Milchwissenschaft, 67(2):142-146.
Juhkam, K., P. Elias, O.M. Roast and T. Tamme. 2007. Viability of Lactobacillus acidophilus in yoghurt containing binulin or oligofructose during refrigerated storage. Milchwissenschaft, 62(1):52-54.
Kavaz, A. and I. Bakırcı. 2014. Influence of inulin and demineralized whey powder addition on the organic acid profiles of probiotic yoghurts. International Journal of Dairy Technology, 67(4):577-583.
Klaver, F. A. M., F. Kingma and A. H. Weerkamp. 1993. Growth and survival of bifidobacteria in milk. Netherlands Milk and Diary Journal, 47:151–164.
Liong, M.T. and N.P. Shah. 2005. Optimization of cholesterol removal, growth and fermentation patterns of Lactobacillus acidophilus ATCC 4962 in the presence of mannitol, fructo-oligosaccharide and inulin: a response surface methodology approach.. Journal of Applied Microbiology, 98:115-1126.
Marafon, A. P., A. Sumi, M. R. Alcântara, A. Y. Tamime and M. N. Oliveira. 2011. Optimization of the rheological properties of probiotic yoghurts supplemented with milk proteins. Lebensmittel Wissenschaft und Technology, 44:511–519.
Mohammadi, R. and A.M. Mortazavian. 2011. Review Article: Technological Aspects of Prebiotics in Probiotic Fermented Milks. Food Reviews International, 27: 192-212.
Nobakhti, A.R., M.R. Ehsani, S.M. Mousavi and A.M. Mortazavian. 2009. Influence of lactulose and Hi-maize addition on viability of probiotic microorganisms in freshly made symbiotic fermented milk drink. Milchwissenschaft, 64(2):191-193.
Olveira, G. and Gonzalez-Molera, I. 2016. An update on probiotics, prebiotics and symbiotics in clinical nutrition. 63(9):482-494.
Özer, D., S. Akin and B. Özer. 2005. Effect of inulin and lactulose on survival of Lactobacillus acidophilus LA-5 and Bifidobacterium bifidum BB-02 in Acidophilus-Bifidus yoghurt. Food Science and Technology International, 11(1):19-24.
Paseephol, T. and F. Sherkat. 2009. Probiotic stability of yoghurts containing Jerusalem artichoke inulins during refregirated storage. Journal of Functional Food, 1:311-318.
Ramchandran, L., and N. P. Shah. 2010. Characterization of functional, biochemical and textural properties of synbiotic low-fat yoghurts during refrigerated storage. Lebensmittel Wissenschaft und Technology, 43:819–827.
Renner, E. 1993. Milchpractikum. Justus-Liebig-Universität, Giessen, Germany.
Srisuvor, N., N. Chinprahast, C. Prakitchaiwattana and S. Subhimaros. 2013. Effects of inulin and polydextrose on physicochemical and sensory properties of low-fat set type yoghurt with probiotic-cultured banana purée. LWT-Food Science and Technology, 51:30-36.
Stijepic, M., J. Glusac, D. Durdevic-Milosevic and D. Pesic-Mikulec. 2013. Physicochemical characteristics of soy probiotic yoghurt with inulin addition during refrigerated storage. Romanian Biotechnological Letters, 18(2):8077-8085.
Tamime, A.Y. 2005. Probiotic Dairy Products, vol. 1. Blackwell Publishing, Oxford, UK.
Tinson, W., M. C. Broome, A. J. Hillier and G. R. Jago. 1982. Metabolism of Streptococcus thermophilus. 2. Production of CO2 and NH3 from urea. Australian Journal of Dairy Technology. 37:14–16.
Turkish Food Codex. 1997. Fermented milk document. Ankara, Turkey: Ministry of Agriculture and Rural Affairs.
Ünal, G. and A.S. Akalın. 2013. Influence of fortification with sodium-calcium caseinate and whey protein concentrate on microbiological, textural and sensory properties of set-type of yoghurt. International Journal of Dairy Technology, 66(2):264-272.
Vasiljevic, T. and N.P. Shah. 2008. Probiotics: from Metchnikoff to bioactives. International Dairy Journal, 18: 714-728.