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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.

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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
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