Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed Cheese

Thermal-denatured whey protein-milk fat emulsion gels with different degrees of pre-emulsification were prepared by pre-emulsifying milk fat with thermal-denatured whey protein and used in the preparation of reduced-sodium processed cheeses. The effect of the thermal-denatured whey protein pre-emuls...

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Main Authors: Hongjuan Li, Yumeng Zhang, Hongyu Cao, Yuchen Zhang, Junna Wang, Xiaoyang Pang, Jiaping Lv, Shuwen Zhang, Jinghua Yu
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/12/15/2884
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author Hongjuan Li
Yumeng Zhang
Hongyu Cao
Yuchen Zhang
Junna Wang
Yumeng Zhang
Xiaoyang Pang
Jiaping Lv
Shuwen Zhang
Jinghua Yu
author_facet Hongjuan Li
Yumeng Zhang
Hongyu Cao
Yuchen Zhang
Junna Wang
Yumeng Zhang
Xiaoyang Pang
Jiaping Lv
Shuwen Zhang
Jinghua Yu
author_sort Hongjuan Li
collection DOAJ
description Thermal-denatured whey protein-milk fat emulsion gels with different degrees of pre-emulsification were prepared by pre-emulsifying milk fat with thermal-denatured whey protein and used in the preparation of reduced-sodium processed cheeses. The effect of the thermal-denatured whey protein pre-emulsification process on the texture and microstructure of reduced-sodium processed cheeses was evaluated by studying the composition, color, texture, functional properties, microstructure and sensory analysis of the processed cheeses. The results showed that compared with cheese without pre-emulsified fat (1.5% ES control), the moisture content of cheese with pre-emulsified 100% fat (1.5% ES100) increased by 5.81%, the L* values increased by 7.61%, the hardness increased by 43.24%, and the free oil release decreased by 38%. The microstructure showed that the particle size of fat was significantly reduced, and the distribution was more uniform. In addition, compared with the cheese added with 3% emulsifying salt (3% ES control), the amount of emulsifying salt in the 1.5% ES100 decreased by 50%, but the fat distribution of the two kinds of cheese tended to be consistent, and there was no obvious change in texture characteristics and meltability. Sensory scores increased with the increase in pre-emulsification degree. Overall, the pre-emulsification of milk fat with thermal-denatured whey protein can reduce the sodium content of processed cheese and improve its quality.
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spelling doaj.art-35cd9dc7220e4c65a0121944fd16101a2023-11-18T22:54:33ZengMDPI AGFoods2304-81582023-07-011215288410.3390/foods12152884Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed CheeseHongjuan Li0Yumeng Zhang1Hongyu Cao2Yuchen Zhang3Junna Wang4Yumeng Zhang5Xiaoyang Pang6Jiaping Lv7Shuwen Zhang8Jinghua Yu9State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaState Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, ChinaThermal-denatured whey protein-milk fat emulsion gels with different degrees of pre-emulsification were prepared by pre-emulsifying milk fat with thermal-denatured whey protein and used in the preparation of reduced-sodium processed cheeses. The effect of the thermal-denatured whey protein pre-emulsification process on the texture and microstructure of reduced-sodium processed cheeses was evaluated by studying the composition, color, texture, functional properties, microstructure and sensory analysis of the processed cheeses. The results showed that compared with cheese without pre-emulsified fat (1.5% ES control), the moisture content of cheese with pre-emulsified 100% fat (1.5% ES100) increased by 5.81%, the L* values increased by 7.61%, the hardness increased by 43.24%, and the free oil release decreased by 38%. The microstructure showed that the particle size of fat was significantly reduced, and the distribution was more uniform. In addition, compared with the cheese added with 3% emulsifying salt (3% ES control), the amount of emulsifying salt in the 1.5% ES100 decreased by 50%, but the fat distribution of the two kinds of cheese tended to be consistent, and there was no obvious change in texture characteristics and meltability. Sensory scores increased with the increase in pre-emulsification degree. Overall, the pre-emulsification of milk fat with thermal-denatured whey protein can reduce the sodium content of processed cheese and improve its quality.https://www.mdpi.com/2304-8158/12/15/2884reduced sodiumprocessed cheeseemulsifying saltwhey proteinpre-emulsification
spellingShingle Hongjuan Li
Yumeng Zhang
Hongyu Cao
Yuchen Zhang
Junna Wang
Yumeng Zhang
Xiaoyang Pang
Jiaping Lv
Shuwen Zhang
Jinghua Yu
Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed Cheese
Foods
reduced sodium
processed cheese
emulsifying salt
whey protein
pre-emulsification
title Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed Cheese
title_full Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed Cheese
title_fullStr Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed Cheese
title_full_unstemmed Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed Cheese
title_short Effects of Pre-Emulsification with Thermal-Denatured Whey Protein on Texture and Microstructure of Reduced-Sodium Processed Cheese
title_sort effects of pre emulsification with thermal denatured whey protein on texture and microstructure of reduced sodium processed cheese
topic reduced sodium
processed cheese
emulsifying salt
whey protein
pre-emulsification
url https://www.mdpi.com/2304-8158/12/15/2884
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