Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid whey

The worldwide Greek yogurt market is a growing multi-billion-dollar industry in need of a solution for its environmentally problematic acid whey byproduct. This study evaluated the effects of concentrated Greek acid whey (GAW) substituted in lieu of water during extrusion of milk protein concentrate...

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Main Authors: Ashton K. Yoon, Syed S.H. Rizvi
Format: Article
Language:English
Published: Taylor & Francis Group 2020-01-01
Series:International Journal of Food Properties
Subjects:
Online Access:http://dx.doi.org/10.1080/10942912.2020.1753768
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author Ashton K. Yoon
Syed S.H. Rizvi
author_facet Ashton K. Yoon
Syed S.H. Rizvi
author_sort Ashton K. Yoon
collection DOAJ
description The worldwide Greek yogurt market is a growing multi-billion-dollar industry in need of a solution for its environmentally problematic acid whey byproduct. This study evaluated the effects of concentrated Greek acid whey (GAW) substituted in lieu of water during extrusion of milk protein concentrate-based snacks. Water, unhydrolyzed GAW, and hydrolyzed GAW were used as the three liquid sources during extrusion and physicochemical, textural, and sensory properties of the extrudates were evaluated. Addition of GAW significantly (P < .05) increased extrudate radial expansion ratio (RER) and porosity and decreased piece density. GAW generally improved textural characteristics of hardness, crispness, and crunchiness or produced extrudates comparable to commercial products. A consumer sensory acceptance test showed that GAW significantly improved hedonic and Just About Right (JAR) scores in all four attribute categories. The results indicate GAW’s potential to replace water during extrusion, simultaneously utilizing an environmentally undesirable byproduct while improving extruded snack foods.
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spelling doaj.art-c3e5f978876a4deeafdb8f5a6ad50d502022-12-21T20:34:36ZengTaylor & Francis GroupInternational Journal of Food Properties1094-29121532-23862020-01-0123170872110.1080/10942912.2020.17537681753768Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid wheyAshton K. Yoon0Syed S.H. Rizvi1Cornell UniversityCornell UniversityThe worldwide Greek yogurt market is a growing multi-billion-dollar industry in need of a solution for its environmentally problematic acid whey byproduct. This study evaluated the effects of concentrated Greek acid whey (GAW) substituted in lieu of water during extrusion of milk protein concentrate-based snacks. Water, unhydrolyzed GAW, and hydrolyzed GAW were used as the three liquid sources during extrusion and physicochemical, textural, and sensory properties of the extrudates were evaluated. Addition of GAW significantly (P < .05) increased extrudate radial expansion ratio (RER) and porosity and decreased piece density. GAW generally improved textural characteristics of hardness, crispness, and crunchiness or produced extrudates comparable to commercial products. A consumer sensory acceptance test showed that GAW significantly improved hedonic and Just About Right (JAR) scores in all four attribute categories. The results indicate GAW’s potential to replace water during extrusion, simultaneously utilizing an environmentally undesirable byproduct while improving extruded snack foods.http://dx.doi.org/10.1080/10942912.2020.1753768acid wheyextrusionscfxmilk proteinsnack foodsbyproducts
spellingShingle Ashton K. Yoon
Syed S.H. Rizvi
Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid whey
International Journal of Food Properties
acid whey
extrusion
scfx
milk protein
snack foods
byproducts
title Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid whey
title_full Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid whey
title_fullStr Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid whey
title_full_unstemmed Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid whey
title_short Functional, textural, and sensory properties of milk protein concentrate-based supercritical fluid extrudates made with acid whey
title_sort functional textural and sensory properties of milk protein concentrate based supercritical fluid extrudates made with acid whey
topic acid whey
extrusion
scfx
milk protein
snack foods
byproducts
url http://dx.doi.org/10.1080/10942912.2020.1753768
work_keys_str_mv AT ashtonkyoon functionaltexturalandsensorypropertiesofmilkproteinconcentratebasedsupercriticalfluidextrudatesmadewithacidwhey
AT syedshrizvi functionaltexturalandsensorypropertiesofmilkproteinconcentratebasedsupercriticalfluidextrudatesmadewithacidwhey