蓄冷材料结合保鲜剂对南美白对虾的保鲜效果研究

Study on Preservation Effect of Penaeus vannamei by Cool Storage Material with Preservation Agent

研究高分子吸水树脂结合3种具有保鲜防腐功能的蓄冷剂,在不同浓度下对南美白对虾的保鲜效果。试验结果表明,试验进行到1 h时,装有4 kg高分子吸水树脂的泡沫箱内的温度达到2℃以下,而且保持7℃以下的时间超过30 h;相比冰块,高分子吸水树脂蓄冷剂更能延长泡沫箱内对虾的保冷时间,提高保鲜效果。其中,以13%Na2SO3-高分子吸水树脂的蓄冷剂保鲜效果最佳,可延长南美白对虾保藏时间至30 h。

The effects of super absorbent resin with three kinds of fresh-keeping cool storage agent on preservation of Penaeus vannamei at different concentrations were studied.The result showed that the temperature inside the foam box to 2℃ below containing 4 kg of the super absorbent resin with distilled water in 1 h,and keep the temperature below 7 ℃ for more than 30 h;Compared to ice,super absorbent resin with cool storage agent could keep cold time of Penaeus vannamei in the foam box and improve the preservation effect.Among them,the best storage effect was the super absorbent resin with 13% Na_2SO_3,and the study showed that the preservation time of Penaeus vannamei could be prolonged to 30 h.