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Effect of soybean oligosaccharides on probiotic viability and organic acids production in set yoghurt during refrigerated storage
LAWRENCE Muganga,LIU Xiaoming *,HONG Qing,JAMIL Serwanja,Jacob Ojobi Omedi,CHEN Wei
Jiangnan University College of Food Science,Wuxi City 214122
*Correspondence author
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Funding: the National Natural Science Foundation of China (No.No. 31371803)
Opened online:20 March 2015
Accepted by: none
Citation: LAWRENCE Muganga,LIU Xiaoming,HONG Qing.Effect of soybean oligosaccharides on probiotic viability and organic acids production in set yoghurt during refrigerated storage[OL]. [20 March 2015] http://en.paper.edu.cn/en_releasepaper/content/4634009
 
 
Addition of prebiotics to yoghurt has been shown to enhance quality characteristics of yoghurt and improve probiotic viability during storage. In the current study we evaluated the ability of probiotic strains Lactobacillus acidophilus (CCFM6), L. plantarum (CCFM47) in co-culture with Streptococcus thermophilus (CCFM218) in the production of set yoghurt supplemented with SBOs in comparison with conventional starter cultures CCFM218 and L. delbrueckii subsp. bulgaricus (CCFM4). Our results indicate that yoghurt fermented by probiotic strains CCFM6 and CCFM47 had better quality characteristics such firmness, viscosity and less acidity during storage at 4oC for 21 days than the control. SBOs significantly (p<0.05) improved probiotic viability during fermentation but it affected product textural quality by producing a weaker gel. Our results also indicate that probiotic strains CCFM6 and CCFM47 could be used in the production of synbiotic set yoghurt in co-culture with S. thermophilus.
Keywords:Soybean oligosaccharides; probiotics; organic acids; yoghurt
 
 
 

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