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首页> 外文期刊>Biomass & bioenergy >Effect of aging on lignin content, composition and enzymatic saccharification in Corymbia hybrids and parental taxa between years 9 and 12
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Effect of aging on lignin content, composition and enzymatic saccharification in Corymbia hybrids and parental taxa between years 9 and 12

机译:老化对9至12岁之间Corymbia杂种和亲本类群中木质素含量,组成和酶糖化的影响

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摘要

Corymbia (a eucalypt) is an important forestry genus and a potential lignocellulosic bioenergy feedstock. The composition of the lignocellulosic cell wall significantly impacts pretreatment efficiency and conversion to biofuel but is variable and changes with age. In this study, we estimated Klason lignin content, composition, and monosaccharide (glucose and xylose) release after enzymatic saccharification of untreated and hydrothermally pretreated biomass from Corymbia parental species Corymbia torelliana (CT), Corymbia citriodora subsp. variegata (spotted gum; CCV), and interspecific F1 hybrids (CT × CCV) at ages 9 and 12 years from planting. Analysis of lignin composition derived from syringyl/guaiacyl monolignols (S/G) found significant differences among taxa, with CT S/G ratios (2.2 and 2.0) being significantly lower than CCV (2.6 and 2.3) or hybrids (2.5 and 23) at ages 9 and 12 respectively. In general, enzymatic saccharification yields from untreated biomass were significantly different among taxa, with CT (113 and 75 mg g~(-1)) and hybrids (108 and 81 mg g~(-1)) yielding significantly higher glucose from untreated biomass than CCV (82 and 56 mg g~(-1)) at ages 9 and 12 respectively. Comparison of traits within taxa between ages 9 and 12 found S/G ratios and glucose yields from untreated biomass were significantly lower in CT, CCV and hybrid taxa. In conclusion, the formation of lignocellulosic cell walls is complex, influenced by genetics and age of material, requiring optimization of rotation age for biofuel production and other industrial processes.
机译:Corymbia(桉树)是重要的林业属,也是潜在的木质纤维素生物能源原料。木质纤维素细胞壁的组成会显着影响预处理效率和向生物燃料的转化,但会随着年龄的变化而变化。在这项研究中,我们估计了未经酶解和经水热处理的生物质(来自Corymbia torelliana Corymbia torelliana(CT),Corymbia citriodora亚种)的未经酶促糖化后的Klason木质素含量,组成和单糖(葡萄糖和木糖)释放。种植后的9岁和12岁时,分别种植了杂色(点胶; CCV)和种间F1杂种(CT×CCV)。分析从丁香基/愈创木基单木酚(S / G)衍生而来的木质素组成时,分类单元之间存在显着差异,CT S / G比(2.2和2.0)显着低于CCV(2.6和2.3)或杂种(2.5和23)。分别是9岁和12岁。通常,未经处理的生物质的酶促糖化产量在各类群中有显着差异,其中CT(113和75 mg g〜(-1))和杂种(108和81 mg g〜(-1))从未经处理的生物质中产生明显更高的葡萄糖在9岁和12岁时分别比CCV(82和56 mg g〜(-1))高。比较9和12岁之间的分类单元内的性状,发现CT,CCV和杂种分类单元的S / G比和未处理生物量的葡萄糖产量均显着降低。总之,木质纤维素细胞壁的形成是复杂的,受遗传和材料年龄的影响,需要优化生物燃料生产和其他工业过程的旋转年龄。

著录项

  • 来源
    《Biomass & bioenergy》 |2016年第10期|50-59|共10页
  • 作者单位

    Queensland Alliance for Agriculture and Food Innovation, University of Queensland, 306 Carmody Road, St. Lucia, Queensland 4072, Australia;

    Sage Analytics, 1650 38th Street, Suite 101E, Boulder, CO 80301, USA;

    Forest Industries Research Centre, University of the Sunshine Coast, Locked Bag 4, Maroochydore DC, Queensland 4558, Australia,Forestry & Biosciences, Agri-Science Queensland, Department of Agriculture and Fisheries, 1 Cartwright Road, Gympie, Australia;

    BioEnergy Science Center, Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN 37831, USA,National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA;

    Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, 5885 Hollis Street, Emeryville, CA 94608, USA,Biological and Engineering Sciences Center, Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94551, USA;

    Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, 5885 Hollis Street, Emeryville, CA 94608, USA,Biological and Engineering Sciences Center, Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94551, USA;

    BioEnergy Science Center, Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN 37831, USA,Biosciences Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA;

    Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, 5885 Hollis Street, Emeryville, CA 94608, USA,Biological and Engineering Sciences Center, Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94551, USA;

    Queensland Alliance for Agriculture and Food Innovation, University of Queensland, 306 Carmody Road, St. Lucia, Queensland 4072, Australia,Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, 5885 Hollis Street, Emeryville, CA 94608, USA,Biological and Engineering Sciences Center, Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94551, USA;

    Queensland Alliance for Agriculture and Food Innovation, University of Queensland, 306 Carmody Road, St. Lucia, Queensland 4072, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Corymbia; Saccharification; Lignin; S/G; Bioproducts; Biofuels;

    机译:Corymbia;糖化;木质素S / G;生物制品;生物燃料;

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