低温冻藏对可口革囊星虫新鲜度的影响

AbstractIn this experiment,the sensory evaluation,basic nutrients,chemical indicators and thetotal number of colonies were used as the freshness indicators to study the effects of differentfreezing storage temperatures.The results showed that the moisture content,pH value and thetotal number of colonies decreased by 4.76%,2.97%and 1.58%,pH value decreased by 0.69,0.44 and 0.24,the total number of colonies decreased by 0.1,0.49 and 0.91,the frozen lossrate,volatile base nitrogen and histamine increased by 28.20%and 25.4%,respectively 8%,23.58%;volatile base nitrogen increased by 4.9mg/100g,3.78mg/100g and 1.96mg/100grespectively;histamine increased by 3.51mg/100g,2.52mg/100g and 1.99mg/100grespectively,and other indexes did not change significantly.The results showed that the lowerthe freezing temperature was,the better the preservation effect was.Key words:Phascolosoma esculenta ;Cryopreservation;Freshness