Understanding the influence of fluctuated low-temperature combined with high-humidity thawing on gelling properties of pork myofibrillar proteins
2022
Zhu, Mingming | Li, Huijie | Xing, Yi | Ma, Changming | Peng, Zeyu | Jiao, Lingxia | Kang, Zhuangli | Zhao, Shengming | Ma, Hanjun
The present study further investigated the effects of fluctuated low-temperature combined with high-humidity thawing (FLHT) on the gelling properties of pork myofibrillar proteins (MPs). Results showed that compared with refrigerator thawing (RT) and low-temperature combined with high-humidity thawing (LHT), FLHT effectively reduced the protein aggregation and maintained the relative stability by decreasing the variation in the turbidity and absolute ζ-potential value. The rheological results confirmed its improved elastic gel network. Meanwhile, FLHT samples exhibited markedly higher WHC with lower cooking loss (P < 0.05). The whiteness and strength of MPs gel were significantly higher in the FLHT group (P < 0.05). Moreover, there was no difference in textural properties between FLHT samples and fresh meat (FS) (P > 0.05), due to its homogeneous and compact microstructure. Therefore, FLHT plays an essential role in holding a superior gel quality and a compact structure, thereby evidencing its potential application in meat thawing.
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