Journal
FOOD CHEMISTRY
Volume 375, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.131718
Keywords
Lipopeptide; Probiotics; Stress tolerance; Syneresis; Flavor; Acidity regulator
Funding
- DBT
- DST-SYST
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The biosurfactant MS48 produced by marine sponge associated bacteria can effectively enhance the survival of probiotics, improve their functional properties, and enhance the texture and sensorial properties of yogurt.
Probiotics are beneficial viable microorganisms that protects from pathogens, enhance immunity and health. In this study, a biosurfactant from marine sponge associated bacteria MS48 was used to effectively enhance the survival of starter cultures and thereby improving their functional properties. The biosurfactant MS48 was characterized as lipopeptide based upon the spectroscopic analysis. The GC-MS analysis showed the moiety as Lglutamic acid methyl ester with the mass of m/z 161.16. Probiotics supplemented with lipopeptide showed better survival in the stress tolerance assays includes acid, bile, heat, salt stress and other assays including autoaggregation, hydrophobicity, microbial adhesion to solvents (MATS), and simulated gastric juice. Yogurt formulated using lipopeptide showed enhanced flavor components, stability, improved characteristics, EPS production, and lower syneresis than the control. Malonic acid, acidity regulator was detected in the mass spectrum of lipopeptide added yogurt. The texture analysis of the lipopeptide added yogurt showed improved textural and sensorial properties when compared to the control.
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