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Effect of α-Tocopherol on the Physicochemical Properties of Sturgeon Surimi during Frozen Storage

机译:生育期α-生育酚对Sur鱼鱼糜理化特性的影响

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摘要

This study investigated the effects of α-tocopherol (α-TOH) on the physicochemical properties of sturgeon surimi during 16-week storage at −18 °C. An aliquot of 0.1% (w/w) of α-TOH was added into the surimi and subjected to frozen storage, and 8% of a conventional cryoprotectant (4% sorbitol and 4% sucrose, w/w) was used as a positive control. Based on total viable count, pH and whiteness, α-TOH exhibited a better protection for frozen sturgeon surimi than cryoprotectant during frozen storage. According to soluble protein content, carbonyl content, total sulfhydryl content, and surface hydrophobicity, α-TOH and cryoprotectant showed the same effects on retarding changes of proteins. The results of breaking force, deformation, gel strength, water-holding capacity and microstructure of sturgeon surimi indicated that the gel properties of frozen sturgeon surimi were retained by α-TOH. Our results suggest that α-TOH is an attractive candidate to maintain the quality of sturgeon surimi during frozen storage.
机译:这项研究调查了α-生育酚(α-TOH)对−鱼鱼糜在−18°C下贮藏16周的理化性质的影响。将等分试样的0.1%(w / w)的α-TOH加入鱼糜中并冷冻保存,并将8%的常规冷冻保护剂(4%山梨糖醇和4%蔗糖,w / w)用作阳性样品。控制。基于总的活菌计数,pH和白度,在冷冻储存期间,α-TOH对冷冻st鱼鱼糜的保护作用优于冷冻保护剂。根据可溶性蛋白质含量,羰基含量,总巯基含量和表面疏水性,α-TOH和冷冻保护剂对延缓蛋白质变化表现出相同的作用。 of鱼鱼糜的断裂力,变形,凝胶强度,保水能力和微观结构的结果表明,冷冻-鱼鱼糜的凝胶性质被α-TOH保留。我们的结果表明,α-TOH是在冷冻保存过程中保持of鱼鱼糜质量的诱人候选人。

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