Sensory quality evaluation of whey-based beverages

Whey as a by-product of the cheese industry is a source of biological and functional valuable proteins. The aim of this research was to evaluate the commercial potential of whey-based dairy beverages containing a definite amount of semi-skimmed milk addition. The purpose of this paper was to improve...

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Main Authors: Veronika Legarová, Lenka Kouřimská
Format: Article
Language:English
Published: Croatian Dairy Union 2010-12-01
Series:Mljekarstvo
Subjects:
Online Access:http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=93756
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author Veronika Legarová
Lenka Kouřimská
author_facet Veronika Legarová
Lenka Kouřimská
author_sort Veronika Legarová
collection DOAJ
description Whey as a by-product of the cheese industry is a source of biological and functional valuable proteins. The aim of this research was to evaluate the commercial potential of whey-based dairy beverages containing a definite amount of semi-skimmed milk addition. The purpose of this paper was to improve the whey flavour via its fermentation by commercial yogurt starter cultures, and via 25 % and 50 % of milk addition. The course of fermentation was monitored by pH and titratable acidity changes. The sensory profile of non-fermented and fermented drinks was assessed using unstructured graphical scales. No significant differences in acidity were found between the samples which were fermented for 3 or 4 hours, but a significant difference was found between samples of whey drinks without milk and samples with milk addition. Fermentation by yoghurt culture did not bring statistically significant improvement of the whey drink organoleptic properties, while the addition of milk was the most important factor influencing not only the total sensory quality of the whey drinks but also their flavour, appearance, colour, viscosity and homogeneity.
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spelling doaj.art-41f0a3a8f7ae42148bc27136fb76c3c22022-12-22T02:52:23ZengCroatian Dairy UnionMljekarstvo0026-704X1846-40252010-12-01604280287Sensory quality evaluation of whey-based beveragesVeronika LegarováLenka KouřimskáWhey as a by-product of the cheese industry is a source of biological and functional valuable proteins. The aim of this research was to evaluate the commercial potential of whey-based dairy beverages containing a definite amount of semi-skimmed milk addition. The purpose of this paper was to improve the whey flavour via its fermentation by commercial yogurt starter cultures, and via 25 % and 50 % of milk addition. The course of fermentation was monitored by pH and titratable acidity changes. The sensory profile of non-fermented and fermented drinks was assessed using unstructured graphical scales. No significant differences in acidity were found between the samples which were fermented for 3 or 4 hours, but a significant difference was found between samples of whey drinks without milk and samples with milk addition. Fermentation by yoghurt culture did not bring statistically significant improvement of the whey drink organoleptic properties, while the addition of milk was the most important factor influencing not only the total sensory quality of the whey drinks but also their flavour, appearance, colour, viscosity and homogeneity.http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=93756whey drinksfermentationyoghurt starter cultureaciditysensory analysis
spellingShingle Veronika Legarová
Lenka Kouřimská
Sensory quality evaluation of whey-based beverages
Mljekarstvo
whey drinks
fermentation
yoghurt starter culture
acidity
sensory analysis
title Sensory quality evaluation of whey-based beverages
title_full Sensory quality evaluation of whey-based beverages
title_fullStr Sensory quality evaluation of whey-based beverages
title_full_unstemmed Sensory quality evaluation of whey-based beverages
title_short Sensory quality evaluation of whey-based beverages
title_sort sensory quality evaluation of whey based beverages
topic whey drinks
fermentation
yoghurt starter culture
acidity
sensory analysis
url http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=93756
work_keys_str_mv AT veronikalegarova sensoryqualityevaluationofwheybasedbeverages
AT lenkakourimska sensoryqualityevaluationofwheybasedbeverages