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Updated: Jul 3, 2026

Fruit Volatile Analysis Using an Electronic Nose
Published on: March 30, 2012
Metabolomic analysis reveals the dynamic changes of metabolites during storage process in passion fruit
Chunyan Mo1, Lulu Cheng2, Zheng Lei3
1School of Tropical Agriculture and Forestry, Hainan University, Haikou, China.
Abstract:
Passion fruit is prone to quality deterioration after harvesting, with substantial changes in metabolites. This study compared the postharvest metabolite dynamics of three varieties ('Mantianxing', 'Dahuangjin', 'Qinmi No. 9') during storage at 25 °C. On days 1, 5, and 9 after harvesting, 605 VOCs and 716 NVMs were identified. Room temperature storage significantly altered the abundance of 47 VOCs and 35 NVMs in stored passion fruits. OPLS-DA could clearly distinguish the VOCs on the 1st day after harvest from those at other times, but the differences in NVMs showed variety specificity. Bray-Curtis analysis identified variety (55.7%) as the primary driver of metabolic changes. A random forest model selected 26 VOCs as biomarkers for freshness prediction. These research results not only systematically reveal the dynamic metabolic changes of passion fruit during post-harvest storage, but also provide reference metabolite markers for evaluating the freshness of passion fruit during normal temperature storage.
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