杨木碳水化合物自水解特征的P因子调控

doi:10.3969/j.issn.0253-2417.2019.04.009

林产化学与工业 ›› 2019, Vol. 39 ›› Issue (4): 65-71.doi: 10.3969/j.issn.0253-2417.2019.04.009

杨木碳水化合物自水解特征的P因子调控

王鹏飞¹,任浩^1,²,翟华敏^1,*()

1. 南京林业大学江苏省制浆造纸重点实验室, 江苏南京 210037
2. 齐鲁工业大学生物基材料与绿色造纸国家重点实验室, 山东济南 250353

收稿日期:2019-03-04 出版日期:2019-08-25 发布日期:2019-08-23
通讯作者: 翟华敏 E-mail:hzhai@njfu.edu.cn
作者简介:王鹏飞(1993-),男,江苏盱眙人,硕士生,研究方向为生物质能源综合利用
基金资助:
生物基材料与绿色造纸国家重点实验室开放基金资助项目(KF201803);国家自然科学基金资助项目(31070524)

P-factor Regulation of Characteristics in the Auto Hydrolysis ofPoplar Carbohydrate

Pengfei WANG¹,Hao REN^1,²,Huamin ZHAI^1,*()

1. Jiangsu Provincial Key Laboratory of Pulp and Paper Technology, Nanjing Forestry University, Nanjing 210037, China
2. State Key Laboratory of Biomaterials and Green Papermaking, Qilu University of Technology, Jinan 250353, China

Received:2019-03-04 Online:2019-08-25 Published:2019-08-23
Contact: Huamin ZHAI E-mail:hzhai@njfu.edu.cn
Supported by:
生物基材料与绿色造纸国家重点实验室开放基金资助项目(KF201803);国家自然科学基金资助项目(31070524)

摘要/Abstract

摘要：

为了实现对杨木自水解生物炼制中碳水化合物反应的调控，系统研究了不同P因子对杨木自水解体系中pH值、水解率、还原糖、综纤维素、不同单糖以及糠醛产物的影响，结果表明：随着P因子增大至约2 800，体系pH值不断降低至3.6，总水解率和综纤维素脱除率分别高达47%和54%，来自聚戊糖的阿拉伯糖、鼠李糖几乎完全水解，木聚糖大部分水解，葡聚糖脱除率为37%；总水解趋势、综纤维素脱除、聚戊糖脱除过程均可分为快速和慢速脱除两个阶段；P因子和糠醛的产生具有正相关性，分为慢速阶段和快速阶段，戊糖糠醛转化率达40%。P因子对杨木碳水化合物自水解具有调控性。

关键词: 杨木, 碳水化合物, P因子, 自水解, 单糖

Abstract:

To regulate carbohydrate reaction in the poplar autohydrolysis of biorefining, the effects of different P-factors on the pH value, hydrolysis rate, reducing sugar, holocellulose, different monosaccharides and furfural product in the poplar autohydrolysis system were studied in detail. The results showed that with the increase of P-factor to about 2 800, the pH value of the system decreased continuously to 3.6, the total hydrolysis rate and holocellulose removal rate reached 47% and 54%, respectively. Arabinose and rhamnose in pentosan were almost completely hydrolyzed, xylan was mostly hydrolyzed, and the removal rate of glucan was 37%(mostly from hemicellulose). The trend of total hydrolysis, holocellulose removal and pentosan removal could be divided into a fast and a following slow removal phase in the process. There was a positive correlation between P-factor and furfural production, which could be divided into a slow and a fast phase, and the conversion of pentose to furfural was 40%. P-factor could regulate the autohydrolysis of carbohydrate in poplar.

Key words: poplar, carbohydrate, P-factor, autohydrolysis, monosaccharide

中图分类号:

TQ353

王鹏飞,任浩,翟华敏. 杨木碳水化合物自水解特征的P因子调控[J]. 林产化学与工业, 2019, 39(4): 65-71.

Pengfei WANG,Hao REN,Huamin ZHAI. P-factor Regulation of Characteristics in the Auto Hydrolysis ofPoplar Carbohydrate[J]. Chemistry and Industry of Forest Products, 2019, 39(4): 65-71.

图/表 7

表1

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温度 temperature/℃	保温时间 holding time/min	P因子 P-factor
	0	64
	30	168
160	60	304
	90	451
	120	585
	0	142
	30	414
170	60	709
	90	1009
	120	1304
	0	300
	30	927
	60	1554
180	70	1762
	90	2189
	100	2388
	120	2816

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杨木碳水化合物自水解特征的P因子调控

P-factor Regulation of Characteristics in the Auto Hydrolysis ofPoplar Carbohydrate

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