Abstract:The Kyoho grape packed in three common preservation films was stored at controlled freezing point-0.3 ℃.The time course of grape berry texture properties during storage was detected by using texture profile analysis at 0,5,10,15,20,25,30 days intervals.It was found that:1)the trend of all the texture parameters of the grape berry in three common preservation films decreased;2)The hardness of grape berry had good positive correlations with adhesiveness and chewiness,but exhibited negative correlation with cohesiveness;3)Chewiness of grape berry had good positive correlations with hardness,adhesiveness,springiness and springiness of grape berry also had good positive correlations with cohesiveness,chewiness,resilience;(4)Resilience had bad correlations with other texture parameters excluding springiness and cohesiveness;(5)good fruit rate linearly decreased with the storage time.Based on the above results,good fruit rate could be used to construct regression model to predict the hardness of Kyoho grape berry.Then a simple evaluation method could be provided for Kyoho grape berry during storage by using the regression model.
