Hexanal reduces infection of tomatoes by Botrytis cinerea whilst maintaining quality.

W Utto, Andrew Mawson, JE Bronlund

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Hexanal vapour and intact tomatoes were used as models to assess the opportunities for control of Botrytis cinerea rots by controlled release of organic vapours. Hexanal vapour concentrations in the ranges 5-270 ?L L-1 were applied continuously or as a single dose at the start of storage. The postharvest microbiological, physiological and quality attributes of control and hexanal treated tomatoes were investigated during storage for 7 days at 20 ± 1 °C and ?99% RH. Continuous hexanal exposure effectively suppressed grey mould with the minimum inhibitory concentration (MIC) being 40-70 ?L L-1; the single-dose treatment showed minimal antifungal activity. During continuous exposure at the MIC the fruit respiration rate was increased ?50% and reddening was slowed. No clear trend was observed in ethylene production and treated fruit did not differ from the controls in firmness or mass loss. The controlled release of low concentrations of hexanal vapour into a packaging headspace appears a feasible mechanism for prolonging tomato storage life.
Original languageEnglish
Pages (from-to)434-437
Number of pages4
JournalPostharvest Biology and Technology
Volume47
Issue number3
DOIs
Publication statusPublished - Mar 2008

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Botrytis
Lycopersicon esculentum
Botrytis cinerea
vapors
tomatoes
minimum inhibitory concentration
Infection
infection
Microbial Sensitivity Tests
Fruit
dosage
cell respiration
ethylene production
headspace analysis
packaging
firmness
Product Packaging
Respiratory Rate
shelf life
Quality Control

Cite this

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abstract = "Hexanal vapour and intact tomatoes were used as models to assess the opportunities for control of Botrytis cinerea rots by controlled release of organic vapours. Hexanal vapour concentrations in the ranges 5-270 ?L L-1 were applied continuously or as a single dose at the start of storage. The postharvest microbiological, physiological and quality attributes of control and hexanal treated tomatoes were investigated during storage for 7 days at 20 ± 1 °C and ?99{\%} RH. Continuous hexanal exposure effectively suppressed grey mould with the minimum inhibitory concentration (MIC) being 40-70 ?L L-1; the single-dose treatment showed minimal antifungal activity. During continuous exposure at the MIC the fruit respiration rate was increased ?50{\%} and reddening was slowed. No clear trend was observed in ethylene production and treated fruit did not differ from the controls in firmness or mass loss. The controlled release of low concentrations of hexanal vapour into a packaging headspace appears a feasible mechanism for prolonging tomato storage life.",
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Hexanal reduces infection of tomatoes by Botrytis cinerea whilst maintaining quality. / Utto, W; Mawson, Andrew; Bronlund, JE.

In: Postharvest Biology and Technology, Vol. 47, No. 3, 03.2008, p. 434-437.

Research output: Contribution to journalArticle

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