竹叶抗氧化物作为大黄鱼冷藏保鲜剂的生物学效应研究
Study on biological antioxidant effect of Bamboo Leaves as a novel refrigeration preservative on large yellow croaker
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摘要: 为延长冷藏大黄鱼的货架寿命,本文以养殖大黄鱼为实验对象,冷藏前用0.1%和0.2%的竹叶抗氧化物（Antioxidant of Bamboo Leaves,AOB）水溶液进行浸渍处理,同时设0.2%茶多酚水溶液为阳性对照和生理盐水为空白对照,于（4±1）℃的冰箱中冷藏。在冷藏过程中,通过测定鱼肉的硫代巴比妥酸（TBA）值、pH、质构、挥发性盐基氮（TVB-N）和K值,综合评价AOB在冷藏过程中作为生物保鲜剂的使用效果。研究表明,AOB和茶多酚均能有效延长冷藏大黄鱼的货架寿命,且相同浓度下AOB的效果要优于茶多酚。AOB处理液的浓度以0.1%为佳。说明竹叶抗氧化物具有作为水产品生物保鲜剂应用的潜力。Abstract: To prolong the shelf life of large yellow croaker (Pseudosciaenacrocea) , water solution of Antioxidants of Bamboo Leaves (AOB) with concentrations of 0.1% and 0.2% were applied to soak the fish samples before refrigeration at (4±1) ℃, meanwhile 0.2% of Tea Polyphenols (TP) and saline were used as positive control and blank control, respectively. During the refrigeration process, the thiobarbituric acid (TBA) value, pH, texture, the volatile basic nitrogen (TVB-N) value and the K value were determined to evaluate the effect of AOB as a biological preservative. The results showed that AOB and TP both could effectively extend the shelf life of refrigerated large yellow croaker, and AOB showed even better effect than TP under the same concentration. The best performance of AOB was observed at the concentration of 0.1%, indicating the potential of AOB applied as biological preservative of aquatic.
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