Dataset Information

Forage quality and composition measurements as predictors of ethanol yield from maize (Zea mays L.) stover.

ABSTRACT:

Background

Improvement of biofeedstock quality for cellulosic ethanol production will be facilitated by inexpensive and rapid methods of evaluation, such as those already employed in the field of ruminant nutrition. Our objective was to evaluate whether forage quality and compositional measurements could be used to estimate ethanol yield of maize stover as measured by a simplified pretreatment and simultaneous saccharification and fermentation assay. Twelve maize varieties selected to be diverse for stover digestibility and composition were evaluated.

Results

Variation in ethanol yield was driven by glucan convertibility rather than by glucan content. Convertibility was highly correlated with ruminal digestibility and lignin content. There was no relationship between structural carbohydrate content (glucan and neutral detergent fiber) and ethanol yield. However, when these variables were included in multiple regression equations including convertibility or neutral detergent fiber digestibility, their partial regression coefficients were significant and positive. A regression model including both neutral detergent fiber and its ruminal digestibility explained 95% of the variation in ethanol yield.

Conclusion

Forage quality and composition measurements may be used to predict cellulosic ethanol yield to guide biofeedstock improvement through agronomic research and plant breeding.

SUBMITTER: Lorenz AJ

PROVIDER: S-EPMC2660312 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature

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Publications

Forage quality and composition measurements as predictors of ethanol yield from maize (Zea mays L.) stover.

Lorenz Aaron J AJ Anex Rob P RP Isci Asli A Coors James G JG de Leon Natalia N Weimer Paul J PJ

Biotechnology for biofuels 20090309 1

<h4>Background</h4>Improvement of biofeedstock quality for cellulosic ethanol production will be facilitated by inexpensive and rapid methods of evaluation, such as those already employed in the field of ruminant nutrition. Our objective was to evaluate whether forage quality and compositional measurements could be used to estimate ethanol yield of maize stover as measured by a simplified pretreatment and simultaneous saccharification and fermentation assay. Twelve maize varieties selected to be ...[more]

PMID: 19272154

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Dataset Information

Forage quality and composition measurements as predictors of ethanol yield from maize (Zea mays L.) stover.

Background

Results

Conclusion

Publications

Forage quality and composition measurements as predictors of ethanol yield from maize (Zea mays L.) stover.

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