The effect of ozone treatment on metabolite profile of germinating barley

Dong, X.ORCID: 0000-0002-2647-5747, Sun, L., Agarwal, M.ORCID: 0000-0002-8781-3850, Maker, G.ORCID: 0000-0003-1666-9377, Han, Y., Yu, X. and Ren, Y. (2022) The effect of ozone treatment on metabolite profile of germinating barley. Foods, 11 (9). Article 1211.

Abstract

Ozone is widely used to control pests in grain and impacts seed germination, a crucial stage in crop establishment which involves metabolic alterations. In this study, dormancy was overcome through after-ripening (AR) in dry barley seed storage of more than 4 weeks; alternatively, a 15-min ozone treatment could break the dormancy of barley immediately after harvest, with accelerated germination efficiency remaining around 96% until 4 weeks. Headspace solid-phase microextraction (HS-SPME) and liquid absorption coupled with gas chromatography mass spectrometry (GC-MS) were utilized for metabolite profiling of 2-, 4- and 7-day germinating seeds. Metabolic changes during barley germination are reflected by time-dependent characteristics. Alcohols, fatty acids, and ketones were major contributors to time-driven changes during germination. In addition, greater fatty acids were released at the early germination stage when subjected to ozone treatment.

Item Type:	Journal Article
Murdoch Affiliation(s):	Agricultural Sciences
Publisher:	MDPI
Copyright:	© 2022 by the authors
United Nations SDGs:	Goal 12: Responsible Consumption and Production
URI:	http://researchrepository.murdoch.edu.au/id/eprint/64785

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