Mechanism of the effect of hydrostatic high pressure on tenderness of mutton skeletal muscle

Bai Yanhong; Deligeersong; Zhao Dianbo; Mao Duobin; Jiang Aimin; Yang Gongming

Volume 20 Issue 6

Nov. 2004

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Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2004 > 20(6): 6-10.

Bai Yanhong, Deligeersong, Zhao Dianbo, Mao Duobin, Jiang Aimin, Yang Gongming. Mechanism of the effect of hydrostatic high pressure on tenderness of mutton skeletal muscle[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2004, 20(6): 6-10.

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Mechanism of the effect of hydrostatic high pressure on tenderness of mutton skeletal muscle

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Received Date: March 16, 2003
Revised Date: September 15, 2004
Published Date: November 29, 2004

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Abstract

Abstract

Hydrostatic High Pressure(HHP) is a new and advanced technology applied in meat industry. Changes of sensory characteristic, microscopic structure of myofibrils, activities of crude Calpains and shear force value of mutton skeletal muscle under the condition of HHP treatment were studied. The tenderization mechanism that HHP improved the tenderness of mutton skeletal muscle was systematically discussed. Sensory evaluation results showed that muscle color faded and mortem flavor emerged when pressure increased to 400 MPa. Sarcomere contracted, Z-lines broke, M-lines degraded and I band whitened as mutton skeletal muscle was treated with HHP of 400 MPa and pressure keeping time of 10 min. The activity of crude Calpains(P＜0.01) and shear force value (P＜0.05) decreased significantly with the pressure increasing from 100MPa to 400 MPa. At the level of 400 MPa, the activity of crude Calpains almost inactivated. As a result of these findings, HHP treatment the ageing and tenderness of mutton skeletal muscle could be improved by HHP treatment.
- Hydrostatic High Pressure(HHP),
- mutton skeletal muscle,
- tenderization,
- microscopic structure of myofibrils,
- calpains,
- shear force

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