Comparative study of thermal gelation properties and molecular forces of actomyosin extracted from normal and pale, soft and exudative-like chicken breast meat

OBJECTIVE: The objectives of this study were to investigate the thermal gelation properties and molecular forces of actomyosin extracted from two classes of chicken breast meat qualities (normal and pale, soft and exudative [PSE]-like) during heating process to further improve the understanding of t...

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Veröffentlicht in:Asian-Australasian journal of animal sciences. - 1998. - 32(2019), 5 vom: 11. Mai, Seite 721-733
1. Verfasser: Li, Ke (VerfasserIn)
Weitere Verfasser: Liu, Jun-Ya, Fu, Lei, Zhao, Ying-Ying, Bai, Yan-Hong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Asian-Australasian journal of animal sciences
Schlagworte:Journal Article Actomyosin Chicken Gel Properties Molecular Forces Pale, Soft and Exudative (PSE)-like
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245 1 0 |a Comparative study of thermal gelation properties and molecular forces of actomyosin extracted from normal and pale, soft and exudative-like chicken breast meat 
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520 |a OBJECTIVE: The objectives of this study were to investigate the thermal gelation properties and molecular forces of actomyosin extracted from two classes of chicken breast meat qualities (normal and pale, soft and exudative [PSE]-like) during heating process to further improve the understanding of the variations of functional properties between normal and PSE-like chicken breast meat 
520 |a METHODS: Actomyosin was extracted from normal and PSE-like chicken breast meat and the gel strength, water-holding capacity (WHC), protein loss, particle size and distribution, dynamic rheology and protein thermal stability were determined, then turbidity, active sulfhydryl group contents, hydrophobicity and molecular forces during thermal-induced gelling formation were comparatively studied 
520 |a RESULTS: Sodium dodecyl sulphate-polyacrylamide gel electrophoresis showed that protein profiles of actomyosin extracted from normal and PSE-like meat were not significantly different (p>0.05). Compared with normal actomyosin, PSE-like actomyosin had lower gel strength, WHC, particle size, less protein content involved in thermal gelation forming (p<0.05), and reduced onset temperature (To), thermal transition temperature (Td), storage modulus (G') and loss modulus (G″). The turbidity, reactive sulfhydryl group of PSE-like actomyosin were higher when heated from 40°C to 60°C. Further heating to 80°C had lower transition from reactive sulfhydryl group into a disulfide bond and surface hydrophobicity. Molecular forces showed that hydrophobic interaction was the main force for heat-induced gel formation while both ionic and hydrogen bonds were different significantly between normal and PSE-like actomyosin (p<0.05) 
520 |a CONCLUSION: These changes in chemical groups and inter-molecular bonds affected protein-protein interaction and protein-water interaction and contributed to the inferior thermal gelation properties of PSE-like meat 
650 4 |a Journal Article 
650 4 |a Actomyosin 
650 4 |a Chicken 
650 4 |a Gel Properties 
650 4 |a Molecular Forces 
650 4 |a Pale, Soft and Exudative (PSE)-like 
700 1 |a Liu, Jun-Ya  |e verfasserin  |4 aut 
700 1 |a Fu, Lei  |e verfasserin  |4 aut 
700 1 |a Zhao, Ying-Ying  |e verfasserin  |4 aut 
700 1 |a Bai, Yan-Hong  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Asian-Australasian journal of animal sciences  |d 1998  |g 32(2019), 5 vom: 11. Mai, Seite 721-733  |w (DE-627)NLM098195883  |x 1011-2367  |7 nnns 
773 1 8 |g volume:32  |g year:2019  |g number:5  |g day:11  |g month:05  |g pages:721-733 
856 4 0 |u http://dx.doi.org/10.5713/ajas.18.0389  |3 Volltext 
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