期刊
JOURNAL OF TEXTURE STUDIES
卷 52, 期 2, 页码 207-218出版社
WILEY
DOI: 10.1111/jtxs.12580
关键词
collagen; cooking; hog maw; texture
资金
- Modern Agricultural Technical System Foundation [CARS35]
- Agricultural Independent Innovation of Jiangsu Institutions
This study evaluated the texture and collagen characteristics of hog maw cooked at different temperatures and times, finding that the degradation of Type I collagen played a major role in improving the sensory and textural properties of the cooked hog maw. The results indicated that cooking temperature and time significantly affected the texture and collagen solubility of hog maw.
This study evaluated the texture of hog maw and the degradation of Types I and III collagen in the intramuscular connective tissue (IMCT) of hog maw at different cooking temperatures (75-95 degrees C) and times (50-130 min). The cooking loss, shear force, collagen content, collagen solubility, and IMCT strength of hog maw cooked in water baths were measured. The instrumental texture profile analysis showed that the brittleness, springiness, chewiness and hardness of the cooked hog maw significantly increased with the increase of cooking temperature, while the hardness, springiness and chewiness increased first and then decreased with increasing cooking time. Cooking loss exhibited a 38% increase between the raw meat and meat cooked at 95 degrees C. The collagen solubility significantly increased from 5.5 mg/g for raw meat to 8.6 mg/g for meat cooked at 95 degrees C, accompanied by decreases in the shear force and IMCT strength associated with the increase in cooking temperature and time. These results show that the texture and collagen characteristics of hog maw are dramatically affected by the cooking temperature and time. Sodium dodecyl sulfate electrophoresis and immunofluorescence staining further showed that collagen degradation occurred after cooking, and the degradation of Type I collagen was higher than that of Type III collagen. These results indicated that the degradation of Type I collagen was mainly responsible for the sensory and textural improvements of the cooked hog maw.
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