The impact of 1-methylcyclopropene post-harvest treatment on the storability of the Ckifske zoloto and Dmiana apple varieties

Abstract

As a result of the conducted research, it was established that the post-harvest treatment of apple fruits with Oberigpro, the active substance of which is 1-methylcyclopropene, helps to extend the duration of their storage in the conditions of an ordinary cooled atmosphere. In addition, the processed fruits had a 14-day post-storage shelf life during which they did not lose their quality, which allows producers to extend the duration of the sales period. The fruits of the varieties treated with 1-methylcyclopropene were harder than the control ones when removed from storage. After 60 days of storage, control apples had 21.8 N less pulp hardness than treated apples. During the 14 days of the shelf life, during which the apples were at a temperature of + 19 ºC, the hardness of their pulp in the version with treatment did not significantly decrease, unlike the version where 1-methylcyclopropene treatment was not applied. During the first month of storage, an increase in the content of soluble solids (TSS) was observed in the fruits of the Dmiana variety from the variant where post-harvest processing was carried out. Control fruits on the 150th day of storage contained 0.20% titratable acids, which is 0.10% less than those treated with 1-methylcyclopropene. On the 7th day of the expiration date, the acidity of Dmiana was 0.17 in the control and 0.25% in the fruits from the experimental variant, which is 0.20 and 0.28% less than that during storage, respectively. During the shelf life, fruit weight loss in both versions of the research increased, and on the 14th day, in the version treated with 1-methylcyclopropene, the Skifske Zoloto variety was 0.76% less, and the Dmiana variety was 1.59% less than in options without processing. With the growth of mass loss, the damage of the fruit withering increased, which negatively affected their appearance. On the 14th day of the post-harvest shelf life, Dmiana apples from the variant where 1-methylcyclopropene was not used were covered with an oily coating, and Skifske Zoloto 100% were affected by tan.