摘要
比较了市售褐藻提取物与水产品加工中常用复合磷酸盐的保水效果。选择浸泡增重率、解冻损失率、蒸煮损失率和出品率为主要指标,全面衡量保水剂的保水效果,并通过测定蒸煮后虾仁的质构和色差进一步评价保水剂对虾仁品质的影响。研究结果表明,经粘度为55mPa.s的1%褐藻胶低聚糖浸泡处理的虾仁其浸泡增重率为11.7%,显著高于3%复合磷酸盐处理的6.3%(P<0.05),且冻藏10d后其解冻损失率明显低于复合磷酸盐处理的虾仁,蒸煮损失率和出品率无明显差异(P>0.05);冻藏20d后解冻损失率仍可保持浸泡增重的7.2%,而复合磷酸盐为5.1%,其蒸煮损失率虽高于复合磷酸盐,但仍低于其它处理组,出品率与复合磷酸盐无明显差异,且蒸煮后虾仁的色泽较鲜艳,而复合磷酸盐处理的虾仁略微发白。由此可见,粘度为55mPa.s的褐藻胶低聚糖对虾仁的保水效果可与复合磷酸盐相媲美,且在某种程度上保水效果优于复合磷酸盐。因此,粘度为55mPa.s的褐藻胶低聚糖有望开发成新型安全高效的无磷保水剂。
This paper aimed at comparing several commercially available extractives from brown algae and compound phosphate which are commonly used in aquatic product processing.So we weighed comprehensively water-holding capacity of different water-holding additives based on the yield of weight increasing after being soaked,drip loss,cooking loss and product yield and evaluated the quality of shrimp（Fenneropenaeus chinensis）by measuring the texture attributes and color value of cooked shrimps.The results indicated that shrimps were soaked in solution of 55 mPa·s 1%（W/W）alginate oligosaccharides whose weight increasing yield was up to 11.7% which was significantly higher than 3% compound phosphate whose yield was 6.2%（P0.05）,and after being frozen 10 days,drip loss was sharply lower than shrimps dealt with compound phosphate,cooking loss and product yield had no significant difference（P0.05）;after being frozen 20 days,drip loss would remain 7.2% of the increasing weight after being soaked,while compound phosphate was 5.1%,although the loss was higher than compound phosphate,it was lower than other groups,and there were no obvious differences between alginate oligosaccharides and compound phosphate.Additionally,the color of cooked shrimps was chromatic,while shrimps treated with compound phosphate were slightly pale.From all above,we can clearly come to the conclusion that alginate oligosaccharides＇water-holding capacity is commensurate with compound phosphate,and to some degree is better than compound phosphate.Therefore 55 mPa·s alginate oligosaccharides is expected to be developed into a novel,safe and highly efficient non-phosphorus water-holding additive.
出处
《水产学报》
CAS
CSCD
北大核心
2010年第10期1610-1616,共7页
Journal of Fisheries of China
基金
国家“八六三”高技术研究发展计划(2007AA091806)
国家自然科学基金项目(30800916)
浙江省研究生创新科研项目(YK2008062)
关键词
中国对虾
复合磷酸盐
褐藻胶低聚糖
无磷保水剂
Fenneropenaeus chinensis
compound phosphate
alginate oligosaccharides
non-phosphorus water-holding additive
