Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)

Fat deposition and off-flavor in the muscle are the main problems affecting flesh quality in aquaculture fish, especially in catfish, leading to low acceptability and reduced market price. Yellow catfish is an important aquaculture fish in China. In this study, 40 days of depuration and starvation t...

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Main Authors: Ya Zhou, Yang Xiong, Xianlin He, Xiaoshu Xue, Guo Tang, Jie Mei
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Metabolites
Subjects:
Online Access:https://www.mdpi.com/2218-1989/13/11/1137
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author Ya Zhou
Yang Xiong
Xianlin He
Xiaoshu Xue
Guo Tang
Jie Mei
author_facet Ya Zhou
Yang Xiong
Xianlin He
Xiaoshu Xue
Guo Tang
Jie Mei
author_sort Ya Zhou
collection DOAJ
description Fat deposition and off-flavor in the muscle are the main problems affecting flesh quality in aquaculture fish, especially in catfish, leading to low acceptability and reduced market price. Yellow catfish is an important aquaculture fish in China. In this study, 40 days of depuration and starvation treatment were explored to improve the muscle quality of aquaculture yellow catfish. After depuration and starvation, the body weight, condition factor (CF) and mesenteric fat index (MFI) were all significantly decreased 20 days after treatment. The metabolomic profiles in muscle were characterized to analyze the muscle quality in yellow catfish. The results showed that the content of ADP, AMP, IMP, glutamic acid and taurine were significantly increased between 20 and 40 days post-treatment in the muscle of yellow catfish during the treatment, which was positively associated with the flesh tenderness and quality. In contrast, aldehydes and ketones associated with off-flavors and corticosterone associated with bitter taste were all decreased at 20 days post-treatment. Considering the balance of body weight loss and flesh quality improvement, depuration and starvation for around 20 days is suitable for aquaculture yellow catfish. Our study not only provides an effective method to improve the flesh quality of aquaculture yellow catfish but also reveals the potential mechanism in this process.
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spelling doaj.art-467e5a106ea545718725964822deb7e82023-11-24T14:55:27ZengMDPI AGMetabolites2218-19892023-11-011311113710.3390/metabo13111137Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)Ya Zhou0Yang Xiong1Xianlin He2Xiaoshu Xue3Guo Tang4Jie Mei5College of Fisheries, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Fisheries, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, ChinaCollege of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, ChinaCollege of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, ChinaCollege of Fisheries, Huazhong Agricultural University, Wuhan 430070, ChinaFat deposition and off-flavor in the muscle are the main problems affecting flesh quality in aquaculture fish, especially in catfish, leading to low acceptability and reduced market price. Yellow catfish is an important aquaculture fish in China. In this study, 40 days of depuration and starvation treatment were explored to improve the muscle quality of aquaculture yellow catfish. After depuration and starvation, the body weight, condition factor (CF) and mesenteric fat index (MFI) were all significantly decreased 20 days after treatment. The metabolomic profiles in muscle were characterized to analyze the muscle quality in yellow catfish. The results showed that the content of ADP, AMP, IMP, glutamic acid and taurine were significantly increased between 20 and 40 days post-treatment in the muscle of yellow catfish during the treatment, which was positively associated with the flesh tenderness and quality. In contrast, aldehydes and ketones associated with off-flavors and corticosterone associated with bitter taste were all decreased at 20 days post-treatment. Considering the balance of body weight loss and flesh quality improvement, depuration and starvation for around 20 days is suitable for aquaculture yellow catfish. Our study not only provides an effective method to improve the flesh quality of aquaculture yellow catfish but also reveals the potential mechanism in this process.https://www.mdpi.com/2218-1989/13/11/1137depurationstarvationcatfishflesh qualitymetabolomics
spellingShingle Ya Zhou
Yang Xiong
Xianlin He
Xiaoshu Xue
Guo Tang
Jie Mei
Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)
Metabolites
depuration
starvation
catfish
flesh quality
metabolomics
title Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)
title_full Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)
title_fullStr Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)
title_full_unstemmed Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)
title_short Depuration and Starvation Regulate Metabolism and Improve Flesh Quality of Yellow Catfish (<i>Pelteobagrus fulvidraco</i>)
title_sort depuration and starvation regulate metabolism and improve flesh quality of yellow catfish i pelteobagrus fulvidraco i
topic depuration
starvation
catfish
flesh quality
metabolomics
url https://www.mdpi.com/2218-1989/13/11/1137
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