Importance of Individual Apple Fruit Characteristics for DCA-CF Storage on the Variety ‘Elstar, PCP’
蘋果品種‘Elstar，PCP’果實性狀對DCA-CF貯藏的重要性
Tim-Pascal Schlie1 · Dirk Köpcke2 · Thomas Rath1 ·Werner Dierend1
Eingegangen: 12. August 2019 / Angenommen: 1. November 2019
© Springer-Verlag GmbH Deutschland, ein Teil von Springer Nature 2019
Abstract
The aim of the study was to investigate the importance of individual apple fruit characteristics for DCA-CF (Dynamic Controlled Atmosphere) storage on the variety ‘Elstar, PCP’. The fruit characteristics which had been examined were surface colour, harvest date, fruit load (fruit number/tree) and fruit size. In the storage practice is observed more often that fruits of the same variety behave differently with regard to the tendency to fermentation at the same oxygen concentration. Some fruits are already in the fermentation process, while some of the apples have not yet fermented. The cause of this different behaviour is unknown. For the present work, the fermentation behaviour was investigated on single fruits. The oxygen limit was recorded by measurements of the minimal fluorescence (F0) and the oxygen concentration in the storage. Furthermore, the fermentation behaviour was described by the analysis of the fruit’s own ethanol concentration. The results show that both the harvest date and the fruit load can influence the fermentation behaviour of ‘Elstar, PCP’.
本研究旨在探討蘋果果實個體特性在動態氣調貯藏中的重要性。果實性狀包括表面顏色、采收期、載果量(果數/株)和果實大小。在貯藏實踐中，經常觀察到同一品種的果實在相同氧氣濃度下的發酵傾向不同。有些水果已經在發酵過程中，而有些蘋果還沒有發酵。這種不同行為的原因尚不清楚。本研究以單果為試材，研究其發酵行為。通過測量小熒光強度(F0)和貯藏室中的氧濃度來記錄氧極限。此外，通過對果實自身乙醇濃度的分析，描述了發酵行為。結果表明，采收期和載果量都會影響Elstar，PCP的發酵行為。
Keywords Chlorophyll Fluorescence · DCA-CF-Storage · ‘Elstar, PCP’ · Fermentation behaviour
葉綠素熒光·DCA-CF儲存·‘Elstar，PCP’·發酵行為
