Investigations into the production of volatile compounds in Korla fragrant pears (Pyrus sinkiangensis Yu).
Aldehydes
/ analysis
Esters
/ analysis
Fatty Acids
/ analysis
Food Analysis
/ methods
Fruit
/ chemistry
Gas Chromatography-Mass Spectrometry
/ methods
Gene Expression Regulation, Plant
Hexanols
/ analysis
Linoleic Acid
/ pharmacology
Odorants
/ analysis
Pyrus
/ chemistry
Solid Phase Microextraction
/ methods
Volatile Organic Compounds
/ analysis
alpha-Linolenic Acid
/ pharmacology
Esters
Gene expression
Korla fragrant pear
Lipoxygenase pathway
Substrate feeding
Journal
Food chemistry
ISSN: 1873-7072
Titre abrégé: Food Chem
Pays: England
ID NLM: 7702639
Informations de publication
Date de publication:
01 Jan 2020
01 Jan 2020
Historique:
received:
24
04
2019
revised:
07
08
2019
accepted:
07
08
2019
pubmed:
17
8
2019
medline:
13
11
2019
entrez:
17
8
2019
Statut:
ppublish
Résumé
The composition of volatile compounds in Korla fragrant pears was determined using headspace solid-phase microextraction followed by a gas chromatography-mass spectrometry analysis using fruits at 30, 90, and 150 days after bloom. Hexanal, (E)-2-hexenal, 1-hexanol, (E)-2-hexen-1-ol, (Z)-3-hexen-1-ol, and hexyl acetate were identified as the major compounds. The composition of volatile compounds was associated with fatty acid concentrations and key enzyme activity in the lipoxygenase pathway. In vitro linoleic and linolenic acid feeding experiments conducted using cubes of fruit flesh demonstrated that the concentrations of volatile esters, such as hexyl acetate, in the treated fruits increased significantly after incubation for 12 h compared with those in the control fruits, which was accompanied by a reduction in aldehyde and alcohol concentrations (p < 0.05 or p < 0.01). However, the treatments did not significantly influence the enzyme activity and expression of genes encoding the enzymes.
Identifiants
pubmed: 31419770
pii: S0308-8146(19)31450-5
doi: 10.1016/j.foodchem.2019.125337
pii:
doi:
Substances chimiques
Aldehydes
0
Esters
0
Fatty Acids
0
Hexanols
0
Volatile Organic Compounds
0
alpha-Linolenic Acid
0RBV727H71
2-hexenal
505-57-7
1-hexanol
6CP2QER8GS
n-hexanal
9DC2K31JJQ
Linoleic Acid
9KJL21T0QJ
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
125337Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.