Home
Resources
Publications
Impact of Pulsed Electric Fields on the Volatile Compounds Produced in Whole Onions ( Allium cepa and Allium fistulosum)

Impact of Pulsed Electric Fields on the Volatile Compounds Produced in Whole Onions ( Allium cepa and Allium fistulosum)

Rajkumar Nandakumar, Graham T Eyres, David J Burritt, Biniam Kebede, Michelle Leus, Indrawati Oey

Foods. 2018 Nov 7;7(11):183.

PMID: 30405025

Abstract:

The objective of this research was to investigate the effect of pulsed electric field (PEF) processing on the volatile compounds produced in onion cultivars. The changes in the volatile compounds of onions were assessed comparing results observed while measured immediately and 24 h after PEF treatment using headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS). Significant increases in the concentrations of propanethial S-oxide, propenyl propyl thiosulfinate, 2-methyl-2-pentenal, dipropyl disulfide, propenyl propyl disulfide, methyl propyl disulfide, and methyl propenyl disulfide were observed immediately after PEF treatment. The concentrations of propenyl propyl thiosulfinate, dipropyl disulfide, methyl propyl disulfide, dipropyl trisulfide, methyl propyl trisulfide, and propenyl propyl trisulfide increased after 24 h compared to initial concentrations. It is postulated that these changes are due to PEF-induced cell permeabilisation that facilitates enzyme-substrate reactions after the PEF treatment.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP623369	2-Methyl-2-pentenal		623-36-9	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: