Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal Processing

To examine the quality variations between Tibetan pork and Duroc×Landrace×Yorkshire (DLY) pork subjected to different thermal processing methods, this study analyzed changes in cooking loss rate, shear force, texture, and color under boiling, frying, and roasting conditions. Multivariate statistical...

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Main Authors: Lina XU, Junrong HUANG, Laiyu ZHAO, Peifang REN, Chunhui ZHANG, Feng HUANG
Format: Article
Language:zho
Published: The editorial department of Science and Technology of Food Industry 2025-03-01
Series:Shipin gongye ke-ji
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Online Access:http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024040396
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author Lina XU
Junrong HUANG
Laiyu ZHAO
Peifang REN
Chunhui ZHANG
Feng HUANG
author_facet Lina XU
Junrong HUANG
Laiyu ZHAO
Peifang REN
Chunhui ZHANG
Feng HUANG
author_sort Lina XU
collection DOAJ
description To examine the quality variations between Tibetan pork and Duroc×Landrace×Yorkshire (DLY) pork subjected to different thermal processing methods, this study analyzed changes in cooking loss rate, shear force, texture, and color under boiling, frying, and roasting conditions. Multivariate statistical analysis of volatile organic compounds (VOCs) was conducted using an electronic nose and gas chromatography-ion mobility spectrometry (GC-IMS). The findings indicated that, among the three thermal processing methods, the boiled pork exhibited the lowest cooking loss, shear force, and hardness. and the highest moisture content. The fried pork exhibited the highest hardness, shear force and chewiness due to the high heat transfer properties of the oil, which quickly formed a crust on the surface of the meat. Conversely, the roasted pork demonstrated the highest cooking loss and the lowest moisture content, indicating that using hot air as the heating medium tends to cause water loss, resulting in the highest cooking loss rate. Regarding different breeds, the protein content of Tibetan pork was approximately 1.07 times that of Duroc×Landrace×Yorkshire pork, whereas its intramuscular fat content was 0.73 times that of Duroc×Landrace×Yorkshire pork. The redness value (a* value) of fried Tibetan pork, which was the highest at 14.53, was significantly greater than that of Duroc×Landrace×Yorkshire pork (P<0.05), indicating that Tibetan pork had a deeper color. The electronic nose could effectively distinguish the aromas of Tibetan pork and Duroc×Landrace×Yorkshire pork under the three different heat processing methods. Gas chromatography-ion mobility spectrometry (GC-IMS) detected 58 volatile flavor compounds. 40 and 41 volatile compounds were detected in Tibetan and Duroc×Landrace×Yorkshire pork in boiling mode, 34 and 33 compounds were detected in Tibetan and Duroc×Landrace×Yorkshire pork in roasting mode, while 22 and 15 volatile compounds, mainly aldehydes, ketones and alcohols, were detected in Tibetan and Duroc×Landrace×Yorkshire pork in frying mode, respectively. The total content of sulfur-containing volatile compounds in Tibetan pork was significantly higher than that in Duroc×Landrace×Yorkshire pork during both boiling and roasting processes (P<0.05). α-Ionone and ethylene glycol dimethyl ether were the characteristic flavor compound in fried Tibetan pork, while 3-hydroxy-2-butanone and 4-methylthiazole were unique to roasted and boiled Tibetan pork, respectively. In sensory evaluation, fried Tibetan pork received the highest scores in terms of aroma, color, and overall acceptability. In conclusion, Tibetan pork exhibits outstanding performance in moisture content, hardness, color value, and heterocyclic volatile flavor compounds among the three different heat processing methods. The flavor differences between deep-fried Tibetan pork and Duroc×Landrace×Yorkshire pork are pronounced, with Tibetan pork showing relatively higher levels of flavor compounds, thus significantly enhancing flavor quality. These findings provide data support for fully utilizing the quality advantages of Tibetan pork.
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spelling doaj-art-8d1a2bd4e2e2412a859e7352ce8adcbb2025-08-20T02:47:40ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062025-03-0146629330210.13386/j.issn1002-0306.20240403962024040396-6Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal ProcessingLina XU0Junrong HUANG1Laiyu ZHAO2Peifang REN3Chunhui ZHANG4Feng HUANG5College of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710000, ChinaCollege of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710000, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaHanon Scientific Instruments, Beijing 100192, ChinaCollege of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710000, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaTo examine the quality variations between Tibetan pork and Duroc×Landrace×Yorkshire (DLY) pork subjected to different thermal processing methods, this study analyzed changes in cooking loss rate, shear force, texture, and color under boiling, frying, and roasting conditions. Multivariate statistical analysis of volatile organic compounds (VOCs) was conducted using an electronic nose and gas chromatography-ion mobility spectrometry (GC-IMS). The findings indicated that, among the three thermal processing methods, the boiled pork exhibited the lowest cooking loss, shear force, and hardness. and the highest moisture content. The fried pork exhibited the highest hardness, shear force and chewiness due to the high heat transfer properties of the oil, which quickly formed a crust on the surface of the meat. Conversely, the roasted pork demonstrated the highest cooking loss and the lowest moisture content, indicating that using hot air as the heating medium tends to cause water loss, resulting in the highest cooking loss rate. Regarding different breeds, the protein content of Tibetan pork was approximately 1.07 times that of Duroc×Landrace×Yorkshire pork, whereas its intramuscular fat content was 0.73 times that of Duroc×Landrace×Yorkshire pork. The redness value (a* value) of fried Tibetan pork, which was the highest at 14.53, was significantly greater than that of Duroc×Landrace×Yorkshire pork (P<0.05), indicating that Tibetan pork had a deeper color. The electronic nose could effectively distinguish the aromas of Tibetan pork and Duroc×Landrace×Yorkshire pork under the three different heat processing methods. Gas chromatography-ion mobility spectrometry (GC-IMS) detected 58 volatile flavor compounds. 40 and 41 volatile compounds were detected in Tibetan and Duroc×Landrace×Yorkshire pork in boiling mode, 34 and 33 compounds were detected in Tibetan and Duroc×Landrace×Yorkshire pork in roasting mode, while 22 and 15 volatile compounds, mainly aldehydes, ketones and alcohols, were detected in Tibetan and Duroc×Landrace×Yorkshire pork in frying mode, respectively. The total content of sulfur-containing volatile compounds in Tibetan pork was significantly higher than that in Duroc×Landrace×Yorkshire pork during both boiling and roasting processes (P<0.05). α-Ionone and ethylene glycol dimethyl ether were the characteristic flavor compound in fried Tibetan pork, while 3-hydroxy-2-butanone and 4-methylthiazole were unique to roasted and boiled Tibetan pork, respectively. In sensory evaluation, fried Tibetan pork received the highest scores in terms of aroma, color, and overall acceptability. In conclusion, Tibetan pork exhibits outstanding performance in moisture content, hardness, color value, and heterocyclic volatile flavor compounds among the three different heat processing methods. The flavor differences between deep-fried Tibetan pork and Duroc×Landrace×Yorkshire pork are pronounced, with Tibetan pork showing relatively higher levels of flavor compounds, thus significantly enhancing flavor quality. These findings provide data support for fully utilizing the quality advantages of Tibetan pork.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024040396tibetan porkprocessing methodquality differenceselectronic nosegas chromatography-ion migration spectroscopy (gc-ims)
spellingShingle Lina XU
Junrong HUANG
Laiyu ZHAO
Peifang REN
Chunhui ZHANG
Feng HUANG
Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal Processing
Shipin gongye ke-ji
tibetan pork
processing method
quality differences
electronic nose
gas chromatography-ion migration spectroscopy (gc-ims)
title Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal Processing
title_full Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal Processing
title_fullStr Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal Processing
title_full_unstemmed Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal Processing
title_short Analysis of Quality Differences between Tibetan Pork and Duroc×Landrace×Yorkshire Pork under Different Thermal Processing
title_sort analysis of quality differences between tibetan pork and duroc landrace yorkshire pork under different thermal processing
topic tibetan pork
processing method
quality differences
electronic nose
gas chromatography-ion migration spectroscopy (gc-ims)
url http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024040396
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