Journal
JOURNAL OF FOOD PROCESSING AND PRESERVATION
Volume 45, Issue 3, Pages -Publisher
WILEY
DOI: 10.1111/jfpp.15228
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Funding
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
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This study investigated the effects of inulin or FOS supplementation at different concentrations in various sugar systems on the growth and survival of Lactobacillus casei. The results suggested that lactose was the most suitable sugar for supplementation, with FOS showing better performance in the lactose system and inulin being more effective in the glucose and fructose systems. These findings provide valuable insights for the application of prebiotic supplementation with L. casei in the food industry.
Inulin and fructooligosaccharides (FOS) are widely used prebiotics. In this study, model sugar systems such as glucose, fructose, lactose, and sucrose (2%, 3%, and 4%) were used to investigate the effect of inulin or FOS (0.5%, 1%, 2%, 3%, and 4%) supplementation on the growth and survival of Lactobacillus casei. The highest growth-promoting effect was observed with 2% lactose with 4% inulin or 4% FOS supplementation. Based on the highest percentage increase in growth index (GI) of L. casei, the most suitable sugar for inulin and FOS supplementation was lactose, followed by fructose and glucose. In growth assay, based on the percentage increase in GI, FOS (36.8%) was better than inulin (20.1%) for supplementation in the lactose system. In the glucose system, based on the percentage increase in GI, inulin (7.3%) was better than FOS (6.5%) for supplementation. Likewise, inulin (14.6%) was better than FOS (11.1%) for supplementation in fructose system. Practical applications Probiotics and prebiotics are popular functional ingredients that provides health benefits to the consumers. These two ingredients can be administered individually or together. Experimental results indicated that when prebiotics at different concentrations are supplemented with a probiotic, L. casei in various sugar systems, growth-promoting effect, partial inhibition or no effect on the growth and survival of the probiotic is found. These results serve as a guide for the application of prebiotic supplementation with L. casei in the food industry.
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