Diverse cell wall composition and varied biomass digestibility in wheat straw for bioenergy feedstock

Wu, Zhilin; Hao, Huanhuan; Zahoor,; Tu, Yuanyuan; Zheng, Huayan; Wei, Feng; Liu, Yangyang; Zhou, Yüxia; Wang, Yanting; Xie, Guosheng; Gao, Chunbao; Cai, Xin; Peng, Liangcai; Wang, Lingqiang

doi:10.1016/j.biombioe.2014.08.025

Cited by 32 publications

(17 citation statements)

References 44 publications

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“…Wu et al . () found a negative correlation between sugar release and hemicellulose content, but Lindedam et al . () found a positive relationship, although their assay was considering sugar release from both cellulose and hemicellulose, which is in contrast to most other assays that just considered sugar release from cellulose.…”

Section: Straw Digestibilitymentioning

confidence: 81%

“…For example, Wu et al . (), in assessing 115 wheat ascensions, found that the plant dry matter consisted of 27.5–36.4% cellulose, 28.4–35.1% hemicellulose and 19.3–24.5% lignin.…”

Section: Straw Digestibilitymentioning

confidence: 97%

“…Although these studies provide an indication of digestibility, recently, the digestibility of wheat cultivars has been investigated for biofuel production. When considered as feedstock for biofuel production, differences in digestibility among cultivars have been identified (Lindedam et al, 2010aJensen et al, 2011;Wu et al, 2014;Murozuka et al, 2015) although Larsen et al (2012) did not find a significant difference in the cultivars they assessed. The extent of the range of digestibility varied among the studies (Fig.…”

Section: Straw Digestibilitymentioning

confidence: 98%

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Food and bioenergy: reviewing the potential of dual‐purpose wheat crops

2016

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Within the bioenergy debate, the ‘food vs. fuel’ controversy quickly replaced enthusiasm for biofuels derived from first‐generation feedstocks. Second‐generation biofuels offer an opportunity to produce fuels from dedicated energy crops, waste materials or coproducts such as cereal straw. Wheat represents one of the most widely grown arable crops around the world, with wheat straw, a potential source of biofuel feedstock. Wheat straw currently has limited economic value; hence, wheat cultivars have been bred for increased grain yield; however, with the development of second‐generation biofuel production, utilization of straw biomass provides the potential for ‘food and fuel’. Reviewing the evidence for the development of dual‐purpose wheat cultivars optimized for food grain and straw biomass production, we present a holistic assessment of a potential ideotype for a dual‐purpose cultivar (DPC). An ideal DPC would be characterized by high grain and straw yields, high straw digestibility (i.e. biofuel yield potential) and good lodging resistance. Considerable variation in these traits exists among current wheat cultivars, facilitating the selection of improved individual traits; however, increasing straw yield and digestibility could potentially have negative trade‐off impacts on grain yield and lodging resistance, reducing the feasibility of a single ideotype. Adoption of alternative management practices could potentially increase straw yield and digestibility, albeit these practices are also associated with potential trade‐offs among cultivar traits. Benefits from using DPCs include reduced logistics costs along the biofuel feedstock supply chain, but practical barriers to differential pricing for straw digestibility traits are likely to reduce the financial incentive to farmers for growing higher ‘biofuel‐quality’ straw cultivars. Further research is required to explore the relationships among the ideotype traits to quantify potential DPC benefits; this will help to determine whether stakeholders along the bioenergy feedstock supply chain will invest in the development of DPCs that provide food and fuel potential.

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Section: Straw Digestibilitymentioning

confidence: 81%

“…For example, Wu et al . (), in assessing 115 wheat ascensions, found that the plant dry matter consisted of 27.5–36.4% cellulose, 28.4–35.1% hemicellulose and 19.3–24.5% lignin.…”

Section: Straw Digestibilitymentioning

confidence: 97%

Section: Straw Digestibilitymentioning

confidence: 98%

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Food and bioenergy: reviewing the potential of dual‐purpose wheat crops

2016

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“…Since total lignin and ASL are negatively correlated in this paper, decreasing total lignin could increase the concentration of ASL which would reduce the efficiency of the energy conversion process. In wheat straw, Wu et al (2014) demonstrated that total lignin, AIL, and glucan were negatively correlated with ASL. Acid soluble lignin significantly and positively correlated with glucan in our hybrid group, but not significantly across the entire diversity panel nor in the other groups we tested, differing from Wu et al (2014) findings in wheat straw, which showed a significant negative correlation between ASL and glucan.…”

Section: J R Todd Et Almentioning

confidence: 97%

Fiber composition of a diversity panel of the world collection of sugarcane (Saccharum spp.) and related grasses

et al. 2017

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ABSTRACT:The world collection of sugarcane (Saccharum hybrids) and related grasses (WCSRG) is an important source of genes for sugarcane and energycane breeding. The core collection or diversity panel of the WCSRG was created in Canal Point with 300 accession and 10 checks to evaluate its diversity. The fiber components of the species and accessions within the WCSRG are unknown, so a shredded and dried fiber sample was taken from each accession and sent for fiber analysis. The acetyl groups, acid insoluble lignin, acid soluble lignin, arabinan, glucan, holocellulose, total lignin, structural ash, and xylan were quantified on a % fiber basis and nonstructural ash on a % total basis. There were significant, but not large differences between species for holocellulose, lignin, acetyl, acid soluble lignin, PLANT BREEDING -Article

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“…The cellulosic biomass can be hydrolyzed by using acid [18], alkaline [19,20] or enzymatic [21] method. The harsh environmental conditions and the purification steps involved with the acid and alkaline treatments can be avoided by enzymatic hydrolysis.…”

Section: Introductionmentioning

confidence: 99%