CN106086245A - 一种提高蔗渣水解液中木糖得率的方法 - Google Patents

一种提高蔗渣水解液中木糖得率的方法 Download PDF

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CN106086245A
CN106086245A CN201610524880.1A CN201610524880A CN106086245A CN 106086245 A CN106086245 A CN 106086245A CN 201610524880 A CN201610524880 A CN 201610524880A CN 106086245 A CN106086245 A CN 106086245A
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bagasse
hydrolyzed solution
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xylose
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姚双全
覃程荣
聂双喜
高聪
朱慧霞
王双飞
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Guangxi University
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Abstract

本发明公开了一种提高蔗渣水解液中木糖得率的方法，属于生物质精炼领域。所述方法包括利用超低酸预处理蔗渣，将蔗渣放入蒸煮罐中，加入一定量蒸馏水，添加硫酸形成超低酸环境，溶液加热到140～210℃，保温时间为40min，利用高效液相色谱法测定水解液木糖浓度。本发明与现有技术相比，水解液中木糖得率明显提高。

Description

一种提高蔗渣水解液中木糖得率的方法
技术领域
本发明涉及生物质精炼领域，尤其是一种提高蔗渣水解液中木糖得率的方法。
背景技术
石油、天然气和煤等不可再生的化石类燃料随着人类社会的大量消耗而逐渐趋于枯竭，开发新的可替代能源成为各国学者关注的热点问题。木质纤维素类生物质包括农业生产的废弃物和剩余物(如农作物秸秆、谷壳、麸皮、蔗渣等)、林木(软木和硬木)及林业加工废弃物、草类等，是地球上最丰富的可再生资源。利用木质纤维素类生物质生产燃料和化学品可以有效的减少温室气体的排放，改善空气质量，减少固体废弃物的处理，满足对能源需求的不断增加，保证国家能源安全，减少石油进口，增加就业，具有深远的意义。
发明内容
本发明为了进一步提高木质生物质水解木糖得率，提供一种提高蔗渣水解液中木糖得率的方法。该方法简单，添加微量硫酸形成超低酸预处理，水解液中木糖得率大幅提高。
本发明解决上述技术问题的技术方案如下：
一种提高蔗渣水解液中木糖得率的方法，操作步骤如下：
1.超低酸预处理蔗渣：
1)绝干后蔗渣质量g∶蒸馏水体积mL为1∶15，将绝干后蔗渣和蒸馏水都放入蒸煮罐中，添加硫酸质量为混合液质量的0～0.10％，然后采用电热升温方式，温度由室温升温至140～210℃，然后保温40min后固液分离，收集超低酸预处理蔗渣的水解液。
2)绝干后蔗渣质量g∶蒸馏水体积mL为1∶15，将绝干后蔗渣和蒸馏水都放入蒸煮罐中，不添加硫酸，然后采用电热升温方式，温度由室温升温至140℃，然后保温40min后固液分离，收集超低酸预处理蔗渣的水解液。
2)水解液中木糖含量测定：
1)取步骤1的1)收集到的超低酸预处理蔗渣的水解液，利用高效液相离子色谱检测木糖浓度，得到的木糖得率依次为94.7％、91.8％。
2.2)取步骤1的2)收集到的超低酸预处理蔗渣的水解液，利用高效液相离子色谱检测木糖浓度，得到的木糖得率为87.6％。
上述步骤1的1)中添加硫酸质量为混合液质量的0.05％，温度为170℃时水解液中木糖得率为94.7％。
与现有技术相比本发明的有益效果：
通过添加微量硫酸形成超低酸预处理，水解液中木糖得率大幅提高。
具体实施方式
下面结合实施例对本发明方法作进一步的详细描述。
实施例1
一种提高蔗渣水解液中木糖得率的方法，操作步骤如下：
1.超低酸预处理蔗渣：
绝干后蔗渣质量g∶蒸馏水体积mL为1∶15，将绝干后蔗渣和蒸馏水都放入蒸煮罐中，不添加硫酸，然后采用电热升温方式，温度由室温升温至140℃，然后保温40min后固液分离，收集超低酸预处理蔗渣的水解液。
2.水解液中木糖含量测定：
取步骤1收集到的超低酸预处理蔗渣的水解液，利用高效液相离子色谱检测木糖浓度，得到的木糖得率为87.6％。
实施例2
一种提高蔗渣水解液中木糖得率的方法，操作步骤如下：
1.超低酸预处理蔗渣：
绝干后蔗渣质量g∶蒸馏水体积mL为1∶15，将绝干后蔗渣和蒸馏水都放入蒸煮罐中，添加硫酸质量为混合液质量的0.05％，然后采用电热升温方式，温度由室温升温至170℃，然后保温40min后固液分离，收集超低酸预处理蔗渣的水解液。
2.水解液中木糖含量测定：
取步骤1收集到的超低酸预处理蔗渣的水解液，利用高效液相离子色谱检测木糖浓度，得到的木糖得率为94.7％。
实施例3
一种提高蔗渣水解液中木糖得率的方法，操作步骤如下：
1.超低酸预处理蔗渣：
绝干后蔗渣质量g∶蒸馏水体积mL为1∶15，将绝干后蔗渣和蒸馏水都放入蒸煮罐中，添加硫酸质量为混合液质量的0.10％，然后采用电热升温方式，温度由室温升温至210℃，然后保温40min后固液分离，收集超低酸预处理蔗渣的水解液。
2.水解液中木糖含量测定：
取步骤1收集到的超低酸预处理蔗渣的水解液，利用高效液相离子色谱检测木糖浓度，得到的木糖得率为91.8％。
需要说明的是，以上列举的仅是本发明的若干个具体实施例。显然，本发明不限于以上实施例，还可以有许多变形。本领域的普通技术人员能从本发明公开的内容直接导出或联想到的所有变形，均应认为是本发明的保护范围。

Claims (2)

1.一种提高蔗渣水解液中木糖得率的方法，其特征在于，所述方法包括：
1)超低酸预处理蔗渣：
1.1)绝干后蔗渣质量g∶蒸馏水体积mL为1∶15，将绝干后蔗渣和蒸馏水都放入蒸煮罐中，添加硫酸质量为混合液质量的0～0.10％，然后采用电热升温方式，温度由室温升温至140～210℃，然后保温40min后固液分离，收集超低酸预处理蔗渣的水解液；
1.2)绝干后蔗渣质量g∶蒸馏水体积mL为1∶15，将绝干后蔗渣和蒸馏水都放入蒸煮罐中，不添加硫酸，然后采用电热升温方式，温度由室温升温至140℃，然后保温40min后固液分离，收集超低酸预处理蔗渣的水解液；
2)水解液中木糖含量测定：
2.1)取步骤1.1)收集到的超低酸预处理蔗渣的水解液，利用高效液相离子色谱检测木糖浓度，得到的木糖得率依次为94.7％、91.8％；
2.2)取步骤1.2)收集到的超低酸预处理蔗渣的水解液，利用高效液相离子色谱检测木糖浓度，得到的木糖得率为87.6％。
2.根据权利要求1所述的一种提高蔗渣水解液中木糖得率的方法，其特征在于，所述步骤1.1)中添加硫酸质量为混合液质量的0.05％，温度为170℃时水解液中木糖得率为94.7％。
CN201610524880.1A 2016-07-04 2016-07-04 一种提高蔗渣水解液中木糖得率的方法 Pending CN106086245A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559942A (zh) * 2012-01-09 2012-07-11 中德瑞生物炼制实验室(厦门)有限公司 一种秸秆半纤维素的水解处理方法
CN104046705A (zh) * 2014-06-30 2014-09-17 山东万盛环保科技发展有限公司 一种甘蔗渣生产木糖、木糖醇联产l-阿拉伯糖的方法
CN104164519A (zh) * 2014-07-31 2014-11-26 殷志杰 一种纤维素水解制备葡萄糖的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559942A (zh) * 2012-01-09 2012-07-11 中德瑞生物炼制实验室(厦门)有限公司 一种秸秆半纤维素的水解处理方法
CN104046705A (zh) * 2014-06-30 2014-09-17 山东万盛环保科技发展有限公司 一种甘蔗渣生产木糖、木糖醇联产l-阿拉伯糖的方法
CN104164519A (zh) * 2014-07-31 2014-11-26 殷志杰 一种纤维素水解制备葡萄糖的方法

Non-Patent Citations (1)

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Title
蒋磊: "甘蔗渣溶解浆制备过程预水解和酶预处理技术研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *

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Application publication date: 20161109