Chemical volatiles present in cotton gin trash: A by-product of cotton processing

Mary A. Egbuta, Shane McIntosh, Daniel L.E. Waters, Tony Vancov, Lei Liu

Research output: Contribution to journalArticle

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 hydrodistillation. 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.

Original languageEnglish
Article numbere0222146
Pages (from-to)1-17
Number of pages17
JournalPLoS One
Volume14
Issue number9
DOIs
Publication statusPublished - 18 Sep 2019

Fingerprint

cotton gin trash
Terpenes
volatile compounds
Cotton
Byproducts
cotton
Gossypium
terpenoids
Processing
Waste Products
Flame Ionization
Monoterpenes
Sesquiterpenes
sesquiterpenoids
Gas Chromatography
Gas Chromatography-Mass Spectrometry
Magnetic Resonance Spectroscopy
humulene
Alcohols
Gas chromatography

Cite this

Egbuta, Mary A. ; McIntosh, Shane ; Waters, Daniel L.E. ; Vancov, Tony ; Liu, Lei. / Chemical volatiles present in cotton gin trash : A by-product of cotton processing. In: PLoS One. 2019 ; Vol. 14, No. 9. pp. 1-17.
@article{c9023f3e1589499eb04a47e5d007ddb0,
title = "Chemical volatiles present in cotton gin trash: A by-product of cotton processing",
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 hydrodistillation. 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.",
author = "Egbuta, {Mary A.} and Shane McIntosh and Waters, {Daniel L.E.} and Tony Vancov and Lei Liu",
year = "2019",
month = "9",
day = "18",
doi = "10.1371/journal.pone.0222146",
language = "English",
volume = "14",
pages = "1--17",
journal = "PLoS One",
issn = "1932-6203",
publisher = "Public Library of Science (PLoS)",
number = "9",

}

Chemical volatiles present in cotton gin trash : A by-product of cotton processing. / Egbuta, Mary A.; McIntosh, Shane; Waters, Daniel L.E.; Vancov, Tony; Liu, Lei.

In: PLoS One, Vol. 14, No. 9, e0222146, 18.09.2019, p. 1-17.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Chemical volatiles present in cotton gin trash

T2 - A by-product of cotton processing

AU - Egbuta, Mary A.

AU - McIntosh, Shane

AU - Waters, Daniel L.E.

AU - Vancov, Tony

AU - Liu, Lei

PY - 2019/9/18

Y1 - 2019/9/18

N2 - 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 hydrodistillation. 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.

AB - 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 hydrodistillation. 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.

UR - http://www.scopus.com/inward/record.url?scp=85072342233&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072342233&partnerID=8YFLogxK

U2 - 10.1371/journal.pone.0222146

DO - 10.1371/journal.pone.0222146

M3 - Article

C2 - 31532804

AN - SCOPUS:85072342233

VL - 14

SP - 1

EP - 17

JO - PLoS One

JF - PLoS One

SN - 1932-6203

IS - 9

M1 - e0222146

ER -