Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipase

In this study, optimization of fermentation conditions, and applying endogenous walnut lipase were investigated for the manufacture of a fermented, whey-based beverage containing conjugated linoleic acid (CLA). Among different commercial starter and probiotic cultures, the culture containing Lactoba...

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Main Authors: Mona Moslemi, Ali Moayedi, Morteza Khomeiri, Yahya Maghsoudlou
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Food Chemistry: X
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590157522003455
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author Mona Moslemi
Ali Moayedi
Morteza Khomeiri
Yahya Maghsoudlou
author_facet Mona Moslemi
Ali Moayedi
Morteza Khomeiri
Yahya Maghsoudlou
author_sort Mona Moslemi
collection DOAJ
description In this study, optimization of fermentation conditions, and applying endogenous walnut lipase were investigated for the manufacture of a fermented, whey-based beverage containing conjugated linoleic acid (CLA). Among different commercial starter and probiotic cultures, the culture containing Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus showed high potency for CLA synthesis. The fermentation time and the type of walnut oil (lipolyzed or non-lipolyzed) had significant effects on CLA production, as the highest CLA content (36 mg/g fat) was synthesized in the sample containing 1 % lipolyzed walnut oil fermented at 42 °C for 24 h. Moreover, fermentation time had the highest contribution on viable cell counts, proteolysis, DPPH scavenging activity, and final pH. A significant and positive correlation between cell counts and CLA content was also observed (r = +0.823, p < 0.05). This study establishes a cost effective approach for converting cheese whey to a value added beverage enriched with CLA.
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spelling doaj.art-c0f1c1a2a0d8498394a4d4370b0af9612023-03-17T04:34:09ZengElsevierFood Chemistry: X2590-15752023-03-0117100547Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipaseMona Moslemi0Ali Moayedi1Morteza Khomeiri2Yahya Maghsoudlou3Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranCorresponding author.; Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranDepartment of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranDepartment of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranIn this study, optimization of fermentation conditions, and applying endogenous walnut lipase were investigated for the manufacture of a fermented, whey-based beverage containing conjugated linoleic acid (CLA). Among different commercial starter and probiotic cultures, the culture containing Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus showed high potency for CLA synthesis. The fermentation time and the type of walnut oil (lipolyzed or non-lipolyzed) had significant effects on CLA production, as the highest CLA content (36 mg/g fat) was synthesized in the sample containing 1 % lipolyzed walnut oil fermented at 42 °C for 24 h. Moreover, fermentation time had the highest contribution on viable cell counts, proteolysis, DPPH scavenging activity, and final pH. A significant and positive correlation between cell counts and CLA content was also observed (r = +0.823, p < 0.05). This study establishes a cost effective approach for converting cheese whey to a value added beverage enriched with CLA.http://www.sciencedirect.com/science/article/pii/S2590157522003455Conjugated linoleic acid (CLA)FermentationWhey beverageLipolysisOptimizationTaguchi
spellingShingle Mona Moslemi
Ali Moayedi
Morteza Khomeiri
Yahya Maghsoudlou
Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipase
Food Chemistry: X
Conjugated linoleic acid (CLA)
Fermentation
Whey beverage
Lipolysis
Optimization
Taguchi
title Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipase
title_full Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipase
title_fullStr Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipase
title_full_unstemmed Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipase
title_short Development of a whey-based beverage with enhanced levels of conjugated linoleic acid (CLA) as facilitated by endogenous walnut lipase
title_sort development of a whey based beverage with enhanced levels of conjugated linoleic acid cla as facilitated by endogenous walnut lipase
topic Conjugated linoleic acid (CLA)
Fermentation
Whey beverage
Lipolysis
Optimization
Taguchi
url http://www.sciencedirect.com/science/article/pii/S2590157522003455
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