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Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Chemical volatiles present in cotton gin trash: A by-product of cotton processing
PloS ONE, Vol.14(9), pp.1-17
18/09/2019
PMCID: PMC6750886
PMID: 31532804
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Source: InCites
Abstract
Cotton gin trash (CGT), a waste product of cotton gins, make up about 10% of each bale of cotton bolls ginned. The current study investigates high value volatile compounds in CGT to add value to this by-product. The volatile compounds in CGT and different parts of the cotton plant were extracted using various methods, identified by gas chromatography-mass spectrometry (GC-MS) or nuclear magnetic resonance (NMR) spectroscopy, and then quantified by gas chromatography-flame ionisation detection (GC-FID) against available standards. Terpenoids including monoterpenoids and sesquiterpenoids were found to be the most abundant, making up 64.66% (area under peak) of total volatiles extracted by hydro-distillation. The major extractable terpenoids in CGT were α-pinene (13.69–23.05 μg/g), β-caryophyllene (3.99–74.32 μg/g), α-humulene (2.00–25.71 μg/g), caryophyllene oxide (41.50–102.08 μg/g) and β-bisabolol (40.05–137.32 μg/g). Recoveries varied between different extraction methods. The terpenoids were found to be more abundant in the calyx (659.12 μg/g) and leaves (627.72 μg/g) than in stalks (112.97 μg/g) and stems (24.24 μg/g) of the cotton plant, indicating the possible biological origin of CGT volatiles. This study is the first to identify and quantify the different terpenoids present in CGT and significantly, β-bisabolol, an abundant compound (sesquiterpene alcohol) which may have valuable biological prospects. These findings therefore contribute to identifying alternative management strategies and uses of CGT.
Details
- Title
- Chemical volatiles present in cotton gin trash: A by-product of cotton processing
- Creators
- Mary A Egbuta - Southern Cross UniversityShane McIntosh - Southern Cross UniversityDaniel L. E Waters - Southern Cross UniversityTony Vancov - Southern Cross UniversityLei Liu - Southern Cross University
- Publication Details
- PloS ONE, Vol.14(9), pp.1-17
- Grant note
- The funder, Cotton Research Development Corporation (CRDC), Australia, had a role to play in the decision to publish this manuscript. Approval was sought and received prior to submission of the manuscript. L.L., S.M. and T.V. received the research grant from CRDC, Agreement Number DAN1504 (https://www.crdc.
- Identifiers
- 991012925695302368
- Copyright
- © 2019 Egbuta et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
- Academic Unit
- Science; Southern Cross Plant Science; Centre for Coastal Biogeochemistry; Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article