Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)

The effects of different fattening diet combinations on the growth, nutritional value, and flavor of Eriocheir sinensis were compared. Four different fattening diet combinations were evaluated: A1, consisting of 80% iced trash fish (ITF) + 20% formulated diet (FD); A2, consisting of 80% ITF + 20% so...

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Main Authors: Xiangyu Yi, Jiancao Gao, Le Li, Jinliang Du, Zhijuan Nie, Xing Zhang, Gangchun Xu
Format: Article
Language:English
Published: Elsevier 2022-08-01
Series:Aquaculture Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352513422002198
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author Xiangyu Yi
Jiancao Gao
Le Li
Jinliang Du
Zhijuan Nie
Xing Zhang
Gangchun Xu
author_facet Xiangyu Yi
Jiancao Gao
Le Li
Jinliang Du
Zhijuan Nie
Xing Zhang
Gangchun Xu
author_sort Xiangyu Yi
collection DOAJ
description The effects of different fattening diet combinations on the growth, nutritional value, and flavor of Eriocheir sinensis were compared. Four different fattening diet combinations were evaluated: A1, consisting of 80% iced trash fish (ITF) + 20% formulated diet (FD); A2, consisting of 80% ITF + 20% soybean and corn (SC); B1, consisting of 80% Cipangopaludina cathayensis (CC) + 20% FD; and B2, consisting of 80% CC + 20% SC. After 28 days of fattening, the relevant indices were analyzed to identify the best fattening diet combination. There was no significant difference in the growth indices of E. sinensis among the four groups. Interestingly, crabs fed the ITF diets had higher crude protein contents in edible tissues than those fed the CC diets. Crabs fattened with the A2 diet combination had the best yellowness index of the hepatopancreas, while those in the B1 group had greater fatty acid (FA) compositions and higher contents of polyunsaturated FAs. Crabs fattened with the B2 diet combination had the highest amino acid (AA) scores and chemical scores. Meanwhile, the total content of free AAs, sweet and umami AAs, and equivalent umami concentration were highest in the B1 group, indicating better flavor. In conclusion, ITF and SC improved the color of the hepatopancreas of E. sinensis, while CC with supplementary FD or SC improved the nutritional value and flavor of edible parts of E. sinensis. These results provide strategies for fattening of E. sinensis to meet consumer demands.
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spelling doaj.art-bf89e5f7d2e4443bac5cb11ddd5e5c262022-12-22T02:48:47ZengElsevierAquaculture Reports2352-51342022-08-0125101223Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)Xiangyu Yi0Jiancao Gao1Le Li2Jinliang Du3Zhijuan Nie4Xing Zhang5Gangchun Xu6School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, ChinaKey Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaSchool of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, ChinaKey Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaKey Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaSchool of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, ChinaSchool of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; Corresponding author at: School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China.The effects of different fattening diet combinations on the growth, nutritional value, and flavor of Eriocheir sinensis were compared. Four different fattening diet combinations were evaluated: A1, consisting of 80% iced trash fish (ITF) + 20% formulated diet (FD); A2, consisting of 80% ITF + 20% soybean and corn (SC); B1, consisting of 80% Cipangopaludina cathayensis (CC) + 20% FD; and B2, consisting of 80% CC + 20% SC. After 28 days of fattening, the relevant indices were analyzed to identify the best fattening diet combination. There was no significant difference in the growth indices of E. sinensis among the four groups. Interestingly, crabs fed the ITF diets had higher crude protein contents in edible tissues than those fed the CC diets. Crabs fattened with the A2 diet combination had the best yellowness index of the hepatopancreas, while those in the B1 group had greater fatty acid (FA) compositions and higher contents of polyunsaturated FAs. Crabs fattened with the B2 diet combination had the highest amino acid (AA) scores and chemical scores. Meanwhile, the total content of free AAs, sweet and umami AAs, and equivalent umami concentration were highest in the B1 group, indicating better flavor. In conclusion, ITF and SC improved the color of the hepatopancreas of E. sinensis, while CC with supplementary FD or SC improved the nutritional value and flavor of edible parts of E. sinensis. These results provide strategies for fattening of E. sinensis to meet consumer demands.http://www.sciencedirect.com/science/article/pii/S2352513422002198Eriocheir sinensisFattening periodDiet combinationsNutritional qualityFlavor-enhancing nucleotides
spellingShingle Xiangyu Yi
Jiancao Gao
Le Li
Jinliang Du
Zhijuan Nie
Xing Zhang
Gangchun Xu
Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)
Aquaculture Reports
Eriocheir sinensis
Fattening period
Diet combinations
Nutritional quality
Flavor-enhancing nucleotides
title Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)
title_full Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)
title_fullStr Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)
title_full_unstemmed Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)
title_short Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)
title_sort effects of fattening diets on the nutritional quality and flavor of the adult female chinese mitten crab eriocheir sinensis
topic Eriocheir sinensis
Fattening period
Diet combinations
Nutritional quality
Flavor-enhancing nucleotides
url http://www.sciencedirect.com/science/article/pii/S2352513422002198
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