基于TPA法3个早熟甜樱桃品种贮藏期间果实质地变化分析OA

By analyzing the changes in the texture and structure of sweet cherries under different storage times,the storage tolerance of different early-maturing sweet cherry varieties was evaluated to provide a theoretical basis for determining the storage time and the best time for consumption.Using the texture profile analysis(TPA)test method,the fruits of early-maturing sweet cherry varieties'Hongdeng','Zaodaguo'and'Wuyuehong'were used as test materials to analyze the texture changes of the post-harvest fruits at different storage times.The results showed that with the extension of storage time,the hardness,elasticity and chewiness of the fruits of the three early-maturing sweet cherry varieties all showed a trend of increasing first and then decreasing,and at the same storage time,the values of various parameters of'Wuyuehong'fruits were significantly higher than those of'Hongdeng'and'Zaodaguo';the change in the cohesiveness of the fruits of the three early-maturing sweet cherry varieties was relatively gentle,and there was no significant difference among the varieties;the good fruit rate of the three early-maturing sweet cherry varieties gradually decreased.Correlation analysis showed that there was a very significant positive correlation between the hardness,elasticity and chewiness of sweet cherry fruits,and the correlation between cohesiveness and chewiness was not significant.There was a very significant negative correlation between the cohesiveness and hardness of'Wuyuehong'fruits,and a very significant positive correlation between the cohesiveness and elasticity.After the three early-maturing sweet cherry varieties were stored in a cold storage at 0-2℃for 7 days,their good fruit rate and the hardness,elasticity,cohesiveness and chewiness of the fruits all decreased with the extension of storage time.Therefore,it is recommended that under the storage condition of 0-2 ℃,the suitable storage period of early-maturing sweet cherry varieties should not exceed 7 days.