Volltext-Downloads (blau) und Frontdoor-Views (grau)

The Impact of Fruit Ripeness on the Lower Oxygen Limit, Chlorophyll Fluorescence and Fermentation Behavior in Apples

  • Dynamic Controlled Atmosphere-Chlorophyll Fluorescence storage (DCA-CF) uses a fluorescence-based measurement method to detect fermentation in apples (Malus × domestica BORKH.) caused by low-oxygen levels at an early stage. In recent years, it has been observed that individual apples of the same variety and origin can exhibit different fermentation behavior when stored under completely identical conditions. The causes of the different fermentation behavior must be found in order to be able to use DCA storage optimally. This study aimed to find the causes of the different fermentation behaviors of individual apples. Our results show that fruit ripeness can affect the lower oxygen limit (LOL), especially immediately after harvest, when the starch degradation in the fruit is not yet complete. A significant increase in the LOL was observed in ‘Elstar’ (2020: 0.3 kPa, 0.6 kPa, 0.9 kPa; 2021: 0.3 kPa, 0.4 kPa, 0.6 kPa). ‘Braeburn’ also exhibited this behavior regarding the LOL at a lower level. The LOL could not be identified for some of the fruit (varying from 12.5% to 41.7% of the examined apples) previously stored in Ultra Low Oxygen (ULO) storage for 4 months. Also, the chlorophyll content in the apple skin influences the fluorescence measurement method. Within 2 weeks, the chlorophyll content in the apple skin was halved. If the chlorophyll content drops, the reliability of the fluorescence measurement also decreases. It turned out that apples with an Fv/Fm < 0.7 were unsuitable for valid LOL identification.

Export metadata

Additional Services

Search Google Scholar

Statistics

frontdoor_oas
Metadaten
Author:Tim-Pascal Schlie, Thomas Rath, Dirk Köpcke, Werner Dierend
Title (German):The Impact of Fruit Ripeness on the Lower Oxygen Limit, Chlorophyll Fluorescence and Fermentation Behavior in Apples
DOI:https://doi.org/10.1007/s10341-023-00873-0
Parent Title (German):Applied Fruit Science Erwerbs-Obstbau
Document Type:Article
Language:German
Date of Publication (online):2023/04/24
Release Date:2024/02/22
Tag:Dynamic controlled atmosphere; Mini-Apple-PAM; Storage
Volume:65
Issue:5
First Page:1227
Last Page:1237
Faculties:Fakultät AuL
DDC classes:500 Naturwissenschaften und Mathematik / 580 Pflanzen (Botanik)
Review Status:Veröffentlichte Fassung/Verlagsversion