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. 2021 Aug 12;12:705896. doi: 10.3389/fmicb.2021.705896

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Copyright © 2021 Khuna, Suwannarach, Kumla, Frisvad, Matsui, Nuangmek and Lumyong.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Chemical constituents in onion bulb. (A) Total soluble solids, (B) titratable acidity, (C) quercetin content. Error bars represent the standard deviation of the mean. The different letters indicate significant difference (p ≤ 0.05).