Cultivar variation and selection potential relevant to the production of cellulosic ethanol from wheat straw

Jane Lindedam; Sven Bode Andersen; J. DeMartini; Sander Bruun; Henning Jørgensen; Claus Felby; Jakob Magid; B. Yang; C.E. Wyman

doi:10.1016/j.biombioe.2011.12.009

Cultivar variation and selection potential relevant to the production of cellulosic ethanol from wheat straw

Jane Lindedam, Sven Bode Andersen, J. DeMartini, Sander Bruun, Henning Jørgensen, Claus Felby, Jakob Magid, B. Yang, C.E. Wyman

50 Citationer (Scopus)

Abstract

Optimizing cellulosic ethanol yield depends strongly on understanding the biological variation of feedstocks. Our objective was to study variation in capacity for producing fermentable sugars from straw of winter wheat cultivars with a high-throughput pretreatment and hydrolysis well-plate technique. This technique enabled us to estimate cultivar-related and environmental correlations between sugar yield, chemical composition, agronomic qualities, and distribution of botanical plant parts of wheat straw cultivars. Straws from 20 cultivars were collected in duplicates on two sites in Denmark. Following hydrothermal pretreatment (180 °C for 17.6 min) and co-hydrolysis, sugar release and sugar conversion were measured. Up to 26% difference in sugar release between cultivars was observed. Sugar release showed negative cultivar correlation with lignin and ash content, whereas sugar release showed positive cultivar correlation with content of carbohydrates and plant height. Accessibility to cellulose can impede the sugar conversion rate, and convertibility of each botanical fraction might be more important to overall sugar conversion than the relative proportions of botanical fractions. Our results suggest that selection of cultivars for improved biofuel feedstock of wheat straw is possible, because heritability of sugar release is 57% and there are few adverse correlations to other agronomic traits.

Originalsprog	Engelsk
Tidsskrift	Biomass & Bioenergy
Vol/bind	37
Sider (fra-til)	221-228
Antal sider	8
ISSN	0961-9534
DOI	https://doi.org/10.1016/j.biombioe.2011.12.009
Status	Udgivet - feb. 2012

Adgang til dokumentet

10.1016/j.biombioe.2011.12.009

Citationsformater

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title = "Cultivar variation and selection potential relevant to the production of cellulosic ethanol from wheat straw",

abstract = "Optimizing cellulosic ethanol yield depends strongly on understanding the biological variation of feedstocks. Our objective was to study variation in capacity for producing fermentable sugars from straw of winter wheat cultivars with a high-throughput pretreatment and hydrolysis well-plate technique. This technique enabled us to estimate cultivar-related and environmental correlations between sugar yield, chemical composition, agronomic qualities, and distribution of botanical plant parts of wheat straw cultivars. Straws from 20 cultivars were collected in duplicates on two sites in Denmark. Following hydrothermal pretreatment (180 °C for 17.6 min) and co-hydrolysis, sugar release and sugar conversion were measured. Up to 26% difference in sugar release between cultivars was observed. Sugar release showed negative cultivar correlation with lignin and ash content, whereas sugar release showed positive cultivar correlation with content of carbohydrates and plant height. Accessibility to cellulose can impede the sugar conversion rate, and convertibility of each botanical fraction might be more important to overall sugar conversion than the relative proportions of botanical fractions. Our results suggest that selection of cultivars for improved biofuel feedstock of wheat straw is possible, because heritability of sugar release is 57% and there are few adverse correlations to other agronomic traits. ",

author = "Jane Lindedam and Andersen, {Sven Bode} and J. DeMartini and Sander Bruun and Henning J{\o}rgensen and Claus Felby and Jakob Magid and B. Yang and C.E. Wyman",

year = "2012",

month = feb,

doi = "10.1016/j.biombioe.2011.12.009",

language = "English",

volume = "37",

pages = "221--228",

journal = "Biomass and Bioenergy",

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T1 - Cultivar variation and selection potential relevant to the production of cellulosic ethanol from wheat straw

AU - Lindedam, Jane

AU - Andersen, Sven Bode

AU - DeMartini, J.

AU - Bruun, Sander

AU - Jørgensen, Henning

AU - Felby, Claus

AU - Magid, Jakob

AU - Yang, B.

AU - Wyman, C.E.

PY - 2012/2

Y1 - 2012/2

N2 - Optimizing cellulosic ethanol yield depends strongly on understanding the biological variation of feedstocks. Our objective was to study variation in capacity for producing fermentable sugars from straw of winter wheat cultivars with a high-throughput pretreatment and hydrolysis well-plate technique. This technique enabled us to estimate cultivar-related and environmental correlations between sugar yield, chemical composition, agronomic qualities, and distribution of botanical plant parts of wheat straw cultivars. Straws from 20 cultivars were collected in duplicates on two sites in Denmark. Following hydrothermal pretreatment (180 °C for 17.6 min) and co-hydrolysis, sugar release and sugar conversion were measured. Up to 26% difference in sugar release between cultivars was observed. Sugar release showed negative cultivar correlation with lignin and ash content, whereas sugar release showed positive cultivar correlation with content of carbohydrates and plant height. Accessibility to cellulose can impede the sugar conversion rate, and convertibility of each botanical fraction might be more important to overall sugar conversion than the relative proportions of botanical fractions. Our results suggest that selection of cultivars for improved biofuel feedstock of wheat straw is possible, because heritability of sugar release is 57% and there are few adverse correlations to other agronomic traits.

AB - Optimizing cellulosic ethanol yield depends strongly on understanding the biological variation of feedstocks. Our objective was to study variation in capacity for producing fermentable sugars from straw of winter wheat cultivars with a high-throughput pretreatment and hydrolysis well-plate technique. This technique enabled us to estimate cultivar-related and environmental correlations between sugar yield, chemical composition, agronomic qualities, and distribution of botanical plant parts of wheat straw cultivars. Straws from 20 cultivars were collected in duplicates on two sites in Denmark. Following hydrothermal pretreatment (180 °C for 17.6 min) and co-hydrolysis, sugar release and sugar conversion were measured. Up to 26% difference in sugar release between cultivars was observed. Sugar release showed negative cultivar correlation with lignin and ash content, whereas sugar release showed positive cultivar correlation with content of carbohydrates and plant height. Accessibility to cellulose can impede the sugar conversion rate, and convertibility of each botanical fraction might be more important to overall sugar conversion than the relative proportions of botanical fractions. Our results suggest that selection of cultivars for improved biofuel feedstock of wheat straw is possible, because heritability of sugar release is 57% and there are few adverse correlations to other agronomic traits.

U2 - 10.1016/j.biombioe.2011.12.009

DO - 10.1016/j.biombioe.2011.12.009

M3 - Journal article

SN - 0961-9534

VL - 37

SP - 221

EP - 228

JO - Biomass and Bioenergy

JF - Biomass and Bioenergy

ER -