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The volatilome response of fast-melting peaches to short low oxygen stress
Year:
2023
Source of publication :
Postharvest Biology and Technology
Authors :
Chalupowicz, Daniel
;
.
Friedman, Haya
;
.
Kochanek, Bettina
;
.
Lichter, Amnon
;
.
Lurie, Susan
;
.
Maoz, Itay
;
.
Pesis, Edna
;
.
Tyagi, Kamal
;
.
Volume :
196
Co-Authors:

Itay Maoz
Akhilesh Yadav
Bettina Kochanek
Kamal Tyagi
Daniel Chalupowicz
Edna Pesis
Susan Lurie
Haya Friedman
Amnon Lichter

Facilitators :
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Total pages:
1
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Abstract:

Fast-melting peaches have a shelf life of only 3–4 d due to their rapid softening, and this poses a problem in marketing and consumer acceptability. A postharvest 22 h treatment at 20 °C of low oxygen (<1%) or 2 µl L−1 1-methylcyclopropene (1-MCP) was applied to delay softening. 1-MCP was ineffective, but the anaerobic stress delayed softening as expressed by texture measurements, ethylene levels, and chlorophyll index values. Taste panels showed a preference for untreated fruit of the same firmness as treated fruit, probably due to off-flavors volatiles evaporation. Nevertheless, consumer acceptance of treated fruit was high after 3 d at 20 °C and 4 d of cold storage, while control fruit was too soft to be sampled. Volatile compounds were analyzed on control and low oxygen-treated fruit following treatment and 48 h later. Forty-eight compounds were identified, and thirty-nine significantly differed among all four conditions. Eleven volatile compounds associated with anaerobic conditions increased in the low oxygen treatment after 72 h. However, the low oxygen treatment did not affect most ripening-related peach fruit volatiles, primarily lactones. It is hypothesized that these compounds diminished the perception of off-flavors associated with the anaerobic volatiles. This simple low oxygen treatment demonstrates promising results in delaying softening and extending the market life of fast-ripening peaches.

Note:
Related Files :
Flavor
GC/MS
IAD
Prunus persica
Softening
Volatile compounds
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More details
DOI :
10.1016/j.postharvbio.2022.112186
Article number:
112186
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
62536
Last updated date:
27/11/2022 16:16
Creation date:
27/11/2022 16:16
Scientific Publication
The volatilome response of fast-melting peaches to short low oxygen stress
196

Itay Maoz
Akhilesh Yadav
Bettina Kochanek
Kamal Tyagi
Daniel Chalupowicz
Edna Pesis
Susan Lurie
Haya Friedman
Amnon Lichter

The volatilome response of fast-melting peaches to short low oxygen stress

Fast-melting peaches have a shelf life of only 3–4 d due to their rapid softening, and this poses a problem in marketing and consumer acceptability. A postharvest 22 h treatment at 20 °C of low oxygen (<1%) or 2 µl L−1 1-methylcyclopropene (1-MCP) was applied to delay softening. 1-MCP was ineffective, but the anaerobic stress delayed softening as expressed by texture measurements, ethylene levels, and chlorophyll index values. Taste panels showed a preference for untreated fruit of the same firmness as treated fruit, probably due to off-flavors volatiles evaporation. Nevertheless, consumer acceptance of treated fruit was high after 3 d at 20 °C and 4 d of cold storage, while control fruit was too soft to be sampled. Volatile compounds were analyzed on control and low oxygen-treated fruit following treatment and 48 h later. Forty-eight compounds were identified, and thirty-nine significantly differed among all four conditions. Eleven volatile compounds associated with anaerobic conditions increased in the low oxygen treatment after 72 h. However, the low oxygen treatment did not affect most ripening-related peach fruit volatiles, primarily lactones. It is hypothesized that these compounds diminished the perception of off-flavors associated with the anaerobic volatiles. This simple low oxygen treatment demonstrates promising results in delaying softening and extending the market life of fast-ripening peaches.

Scientific Publication
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