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茶多酚对冻藏金枪鱼的保鲜效果研究 被引量:51

Effect on preserving of frozen tuna for tea polyphenol
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摘要 主要研究了在-18℃冻藏条件下,不同浓度的茶多酚保鲜液对金枪鱼肌肉的保鲜效果。结果表明,在相同的贮藏期内,经茶多酚溶液处理后的金枪鱼肌肉的pH值和TVB-N值明显低于对照组,而a*值明显高于对照组,感官值优于未经处理的对照组。茶多酚具有较强的抗氧化作用,采用6g/L茶多酚保鲜液浸渍处理金枪鱼肌肉,样品在第30天,仍能达到一级鲜度指标,感官品质无显著变化,且比对照组延长了至少15d二级鲜度货架期。 Mainly researched the fresh effect for tuna preservation of different concentration tea polyphenol under the condition of -18 ℃. The result suggests that the tuna which processed by tea polyphenol solution with same storage period pH and TVB-N values are obvious lower than the data of control group while a* value is significant higher than the control group, sensory value is superior to the one that without tea polyphenol worked. Tea polyphenol with great antioxidation, tuna which worked by 6 g/L polyphenol fresh solution, the sample can still keep level 1 fresh index on the 30th day, sensory no outstanding changes and compared with the control group it prolonged at least 15 days' level 2 fresh shelf life.
出处 《食品科技》 CAS 北大核心 2012年第12期126-129,共4页 Food Science and Technology
基金 浙江省科技厅优先主题重大农业项目(2010C12025-1)
关键词 金枪鱼 保鲜 茶多酚 生物保鲜剂 tuna fresh tea polyphenol biological preservative
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