Control of lignin solubility and particle formation modulates its antioxidant efficiency in lipid medium: an in situ attenuated total reflectance FT-IR study

Søren Talbro Barsberg; Lisbeth Garbrecht Thygesen; Anand Ramesh Sanadi

doi:10.1021/ef500368x

Control of lignin solubility and particle formation modulates its antioxidant efficiency in lipid medium: an in situ attenuated total reflectance FT-IR study

Søren Talbro Barsberg, Lisbeth Garbrecht Thygesen, Anand Ramesh Sanadi

LUKKET: Skov, natur og biomasse

4 Citationer (Scopus)

Abstract

Lignin is an abundant plant polymer usually regarded as waste material. In the present work, antioxidant properties of lignin preparations with differing lipid solubility were studied using biodiesel as a convenient lipid test substrate. In place of formerly used assays, we used attenuated total reflectance (ATR) FT-IR spectroscopy to follow in situ biodiesel autoxidation on a heated ATR crystal as a function of time. The study demonstrates that a complex balance between intrinsic (chemical) efficiency, solubility, and particle formation controls the antioxidant efficiency of differently prepared lignin fractions. It was found that solubility and particle formation of lignin preparations strongly modulate its antioxidant efficiency and that these properties might depend on the presence of lipid components within the original lignin source.

Originalsprog	Engelsk
Tidsskrift	Energy & Fuels
Vol/bind	28
Udgave nummer	7
Sider (fra-til)	4539−4544
Antal sider	6
ISSN	0887-0624
DOI	https://doi.org/10.1021/ef500368x
Status	Udgivet - 17 jul. 2014

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10.1021/ef500368x

Control of Lignin Solubility and Particle Formation ModulatesForlagets udgivne version, 282 KB

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Control of lignin solubility and particle formation modulates its antioxidant efficiency in lipid medium : an in situ attenuated total reflectance FT-IR study. / Barsberg, Søren Talbro; Thygesen, Lisbeth Garbrecht ; Sanadi, Anand Ramesh.

I: Energy & Fuels, Bind 28, Nr. 7, 17.07.2014, s. 4539−4544.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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abstract = "Lignin is an abundant plant polymer usually regarded as waste material. In the present work, antioxidant properties of lignin preparations with differing lipid solubility were studied using biodiesel as a convenient lipid test substrate. In place of formerly used assays, we used attenuated total reflectance (ATR) FT-IR spectroscopy to follow in situ biodiesel autoxidation on a heated ATR crystal as a function of time. The study demonstrates that a complex balance between intrinsic (chemical) efficiency, solubility, and particle formation controls the antioxidant efficiency of differently prepared lignin fractions. It was found that solubility and particle formation of lignin preparations strongly modulate its antioxidant efficiency and that these properties might depend on the presence of lipid components within the original lignin source.",

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T2 - an in situ attenuated total reflectance FT-IR study

AU - Barsberg, Søren Talbro

AU - Thygesen, Lisbeth Garbrecht

AU - Sanadi, Anand Ramesh

PY - 2014/7/17

Y1 - 2014/7/17

N2 - Lignin is an abundant plant polymer usually regarded as waste material. In the present work, antioxidant properties of lignin preparations with differing lipid solubility were studied using biodiesel as a convenient lipid test substrate. In place of formerly used assays, we used attenuated total reflectance (ATR) FT-IR spectroscopy to follow in situ biodiesel autoxidation on a heated ATR crystal as a function of time. The study demonstrates that a complex balance between intrinsic (chemical) efficiency, solubility, and particle formation controls the antioxidant efficiency of differently prepared lignin fractions. It was found that solubility and particle formation of lignin preparations strongly modulate its antioxidant efficiency and that these properties might depend on the presence of lipid components within the original lignin source.

AB - Lignin is an abundant plant polymer usually regarded as waste material. In the present work, antioxidant properties of lignin preparations with differing lipid solubility were studied using biodiesel as a convenient lipid test substrate. In place of formerly used assays, we used attenuated total reflectance (ATR) FT-IR spectroscopy to follow in situ biodiesel autoxidation on a heated ATR crystal as a function of time. The study demonstrates that a complex balance between intrinsic (chemical) efficiency, solubility, and particle formation controls the antioxidant efficiency of differently prepared lignin fractions. It was found that solubility and particle formation of lignin preparations strongly modulate its antioxidant efficiency and that these properties might depend on the presence of lipid components within the original lignin source.

U2 - 10.1021/ef500368x

DO - 10.1021/ef500368x

M3 - Journal article

SN - 0887-0624

VL - 28

SP - 4539−4544

JO - Energy & Fuels

JF - Energy & Fuels

IS - 7

ER -

Control of lignin solubility and particle formation modulates its antioxidant efficiency in lipid medium: an in situ attenuated total reflectance FT-IR study

Abstract

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