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Food and Energy Security Volume 2 ,Issue 1 ,12–19 ,2013-05-02
Biomass properties from different Miscanthus species
Chenchen Liu 1 Liang Xiao 2 Jianxiong Jiang 2 Wangxia Wang 3 Feng Gu 3 Dongliang Song 1 Zili Yi 2 Yongcan Jin 3 Laigeng Li 1
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DOI: 10.1002/fes3.19
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摘要

Miscanthus, a peculiar genus originating from East Asia, has been considered a promising type of gramineous plant for the bioenergy industry. In this study, four major Miscanthus species widely distributed in China, Miscanthus sinensis, Miscanthus floridulus, Miscanthus sacchariflorus, and Miscanthus lutarioriparius were assessed for their biomass production, chemical composition, and saccharification efficiency. Results show that the annual dry biomass yields of M. sinensis, M. floridulus, M. sacchariflorus, and M. lutarioriparius averaged 16.7, 22.5, 16.7, and 32.0 t ha−1 over 3 years, respectively. M. sinensis and M. floridulus have similar chemical compositions, but different from M. sacchariflorus and M. lutarioriparius. The efficiencies of enzymatic saccharification were assayed after pretreatment with dilute acid and green liquor, respectively. The M. sinensis and M. floridulus biomass displayed higher saccharification efficiency in the case of dilute acid pretreatment, while the M. sacchariflorus and M. lutarioriparius biomass showed higher efficiency following the green liquor pretreatment. Furthermore, a rapid estimation model for predicting Miscanthus biomass saccharification efficiency was established on the basis of near‐infared reflectance spectrometry analysis.

关键词

saccharification;NIR Spectroscopy; Miscanthus ;Lignocellulosic biomass

授权许可

© 2013 The Authors. Food and Energy Security published by John Wiley & Sons Ltd. and the Association of Applied Biologists.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

图表

Figure 1. Plant phenotypes of four Miscanthus species. The photos were taken in September after the four Miscanthus species have fully developed. Bar =1 m.

Figure 2. Biomass residues remaining after dilute acid pretreatment.

Figure 3. Sugar released from dilute acid pretreated feedstocks.

Figure 4. Biomass residue yields after green liquor pretreatment.

Figure 5. Lignin removal efficiencies for Ms, Mf, Mc, and Ml, biomass after green liquor pretreatment.

Figure 6. Sugar released from titratable alkali (TTA) pretreated feedstock.

Figure 7. Correlation between experimental measurement and the near‐infrared reflectance (NIR) prediction of enzymatic digestibility.

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推荐引用方式

Chenchen Liu,Liang Xiao,Jianxiong Jiang,Wangxia Wang,Feng Gu,Dongliang Song,Zili Yi,Yongcan Jin,Laigeng Li. Biomass properties from different Miscanthus species. Food and Energy Security ,Vol.2, Issue 1(2013) :12–19.

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