Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of Yoghurt

In the present study, carrot juice prepared was added into skimmed milk before fermentation to produce 10% and 20% (w/w) carrot-fortified skim milk. The influence of carrot juice on the lactic acid content, chemical composition, syneresis, texture, rheology property, and microstructure was evaluated...

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Main Authors: Li-Ying Bo, Zhi-Qin Pan, Tian-Ying Sun, Guo-Jun Du, Duo Zhang, Zhi-Qiang Song, Chun-Li Song, Ren Jian
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Journal of Food Quality
Online Access:http://dx.doi.org/10.1155/2023/9971055
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author Li-Ying Bo
Zhi-Qin Pan
Tian-Ying Sun
Guo-Jun Du
Duo Zhang
Zhi-Qiang Song
Chun-Li Song
Ren Jian
author_facet Li-Ying Bo
Zhi-Qin Pan
Tian-Ying Sun
Guo-Jun Du
Duo Zhang
Zhi-Qiang Song
Chun-Li Song
Ren Jian
author_sort Li-Ying Bo
collection DOAJ
description In the present study, carrot juice prepared was added into skimmed milk before fermentation to produce 10% and 20% (w/w) carrot-fortified skim milk. The influence of carrot juice on the lactic acid content, chemical composition, syneresis, texture, rheology property, and microstructure was evaluated along with a potential of carrot juice as an ingredient with rich dietary fiber and a firm structure with interaction of milk protein and a complex matrix under acidification. The results showed that the pH of yoghurt significantly (P<0.01) reduced with carrot juice addition, minimizing fermentation time by nearly 1 h and brought about an enhanced postacidification during the storage period while titratable acidity increased. Moreover, carrot juice addition had no significant effect on ferric reducing power and phenolic content (P>0.05). With 10% and 20% level carrot juice added, the total phenolic content (mg GAEkg−1) increased (37.86 and 38.92, respectively) compared with control (36.91) (P<0.05). Besides, the addition of carrot juice also showed reduced syneresis, increased apparent viscosity and viscoelastic modulus, stable texture, and a refined microstructure. Overall, this study confirmed that carrot juice has a potential as natural and nutrient composition to obtain firm and compact texture and enhance the beneficial quality of yoghurt.
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spelling doaj-art-b60221bdbd9841f48d737f06127f6bc72025-08-20T02:23:23ZengWileyJournal of Food Quality1745-45572023-01-01202310.1155/2023/9971055Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of YoghurtLi-Ying Bo0Zhi-Qin Pan1Tian-Ying Sun2Guo-Jun Du3Duo Zhang4Zhi-Qiang Song5Chun-Li Song6Ren Jian7Faculty of Food Quality and SafetyFaculty of Food Quality and SafetyFaculty of Food Quality and SafetyFaculty of Food Quality and SafetyFaculty of Food Quality and SafetyFaculty of Food Quality and SafetyFaculty of Food Quality and SafetyFaculty of Food Quality and SafetyIn the present study, carrot juice prepared was added into skimmed milk before fermentation to produce 10% and 20% (w/w) carrot-fortified skim milk. The influence of carrot juice on the lactic acid content, chemical composition, syneresis, texture, rheology property, and microstructure was evaluated along with a potential of carrot juice as an ingredient with rich dietary fiber and a firm structure with interaction of milk protein and a complex matrix under acidification. The results showed that the pH of yoghurt significantly (P<0.01) reduced with carrot juice addition, minimizing fermentation time by nearly 1 h and brought about an enhanced postacidification during the storage period while titratable acidity increased. Moreover, carrot juice addition had no significant effect on ferric reducing power and phenolic content (P>0.05). With 10% and 20% level carrot juice added, the total phenolic content (mg GAEkg−1) increased (37.86 and 38.92, respectively) compared with control (36.91) (P<0.05). Besides, the addition of carrot juice also showed reduced syneresis, increased apparent viscosity and viscoelastic modulus, stable texture, and a refined microstructure. Overall, this study confirmed that carrot juice has a potential as natural and nutrient composition to obtain firm and compact texture and enhance the beneficial quality of yoghurt.http://dx.doi.org/10.1155/2023/9971055
spellingShingle Li-Ying Bo
Zhi-Qin Pan
Tian-Ying Sun
Guo-Jun Du
Duo Zhang
Zhi-Qiang Song
Chun-Li Song
Ren Jian
Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of Yoghurt
Journal of Food Quality
title Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of Yoghurt
title_full Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of Yoghurt
title_fullStr Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of Yoghurt
title_full_unstemmed Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of Yoghurt
title_short Effect of Carrot Juice on the Texture Properties, Rheology, and Microstructure of Yoghurt
title_sort effect of carrot juice on the texture properties rheology and microstructure of yoghurt
url http://dx.doi.org/10.1155/2023/9971055
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