Optimization of water chestnut () starch, fructo-oligosaccharide and inulin concentrations for low-fat flavoured yogurt consisting of a probiotic strain
Water chestnut ( Trapa bispinosa ) starch has technical and functional qualities that are mostly comparable to those of traditional sources. In this study, low-fat flavoured probiotic yogurt was prepared with the addition of Lacticaseibacillus rhamnosus (ATCC 7469), mango pulp and water chestnut sta...
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Published in | Sustainable Food Technology Vol. 2; no. 3; pp. 837 - 848 |
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Main Authors | , , , , , , |
Format | Journal Article |
Published |
23.05.2024
|
Online Access | Get full text |
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Summary: | Water chestnut (
Trapa bispinosa
) starch has technical and functional qualities that are mostly comparable to those of traditional sources. In this study, low-fat flavoured probiotic yogurt was prepared with the addition of
Lacticaseibacillus rhamnosus
(ATCC 7469), mango pulp and water chestnut starch as a fat replacer as well as a biothickener. A central composite face centered experimental design (CCFD) optimization study was carried out using different combinations of fat (0.5-1.5%), starch (1.0-3.0%), fructo-oligosaccharides (0.5-1.5%) and inulin (0.5-1.5%).
L. rhamnosus
exhibited resistance to simulated gastric fluid, intestinal fluid and hydrogen peroxide, along with good cell surface hydrophobicity and antimicrobial properties against
Escherichia coli
,
Bacillus subtilis
,
Salmonella typhimurium
and
Staphylococcus aureus
. Water chestnut starch was found to have a characteristic A-type crystalline pattern with 28% crystallinity, and it was smooth with oval to irregular in shape. The proximate, texture, color, and sensory properties and the viability of
L. rhamnosus
in yogurt did not vary significantly during a 15 day storage period. Thus, the starch from water chestnuts can be explored as a possible fat substitute for formulating low-calorie food products.
A low-fat flavoured probiotic yogurt consisting of
Lacticaseibacillus rhamnosus
, mango pulp and water chestnut starch as a fat replacer together with prebiotics was formulated with better shelf life (15 days), technological and sensory properties. |
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Bibliography: | Electronic supplementary information (ESI) available. See DOI https://doi.org/10.1039/d4fb00101j |
ISSN: | 2753-8095 |
DOI: | 10.1039/d4fb00101j |