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Updated: Jul 7, 2026

Fruit Volatile Analysis Using an Electronic Nose
Published on: March 30, 2012
Storage temperature modulates fruit quality, volatile compound profiles, and primary metabolite dynamics in
Yunxiao Feng1,2, Nan Zhang1,2, Jingang He1,2
1Institute of Biotechnology and Food Science, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, China.
None:
Storage temperature critically governs the metabolome and postharvest quality dynamics of fruits. In this study, 'Shijizhixing' peach (Prunus persica L. cv. Shijizhixing) fruits were stored at 0, 10, and 20 °C to investigate the temperature-dependent changes in physiology and metabolomics. Storage at 0 °C significantly attenuated the decreases in peel lightness (L*), firmness, juice yield, and decay incidence. In contrast, 10 and 20 °C promoted fruit softening, accompanied by an increase in water-soluble and chelate-soluble pectin while a decrease in covalently bound pectin. GC-MS identified 29 volatiles, among which aldehydes such as (E)-2-hexenal and hexanal were the predominant components at harvest, whereas fruity aroma compounds, including (Z)-3-hexenyl acetate and γ-undecalactone, accumulated markedly during storage at high temperatures. Primary metabolomic profiling revealed that lipid-derived metabolites, notably lysophosphatidylcholine and lysophosphatidylethanolamine, were strongly positively correlated with ester and lactone biosynthesis. Overall, storage temperature markedly influences postharvest quality and aroma by coordinating cell-wall disassembly and lipid-mediated volatile biosynthesis.
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