Enhancing enzymatic hydrolysis and biogas production from rice straw by pretreatment with organic acids

化学 水解 草酸 纤维素 木质纤维素生物量 稻草 酶水解 纤维素酶 生物量(生态学) 木质素 沼气 食品科学 生物能源 半纤维素 生物燃料 制浆造纸工业 农学 生物化学 生物技术 有机化学 废物管理 生物 无机化学 工程类
作者
Plaimein Amnuaycheewa,Rotchanaphan Hengaroonprasan,Kittipong Rattanaporn,Suchata Kirdponpattara,Kraipat Cheenkachorn,Malinee Sriariyanun
出处
期刊:Industrial Crops and Products [Elsevier BV]
卷期号:87: 247-254 被引量:152
标识
DOI:10.1016/j.indcrop.2016.04.069
摘要

Lignocellulosic biomass is recalcitrant to enzymatic and microbial degradation due to its chemical compositions and physical structures that inhibit the hydrolysis reactions. To obtain a high sugar yield for biofuel production, pretreatment process is generally needed to improve efficiency of hydrolysis. Here, organic acids were used to pretreat rice straw. Using Response Surface Methodology (RSM), the effect of three pretreatment parameters, including acid concentration, treatment time, and reaction temperature, on pretreatment efficiency were evaluated and used to generate mathematic optimization model. The hydrolysis results indicated that oxalic acid pretreatment led to the highest enhancement of enzymatic saccharification up to 213.4 mg (starting from 500 mg of pretreated sample) when using 5.01% oxalic acid concentration at 135.91 °C for 30.86 min, which was 2.68 times higher than the untreated rice straw. The structural changes in the pretreated biomass were investigated using FT-IR analysis. The results suggested that lignin composition was significantly removed from the pretreated biomass, and the crystalline cellulose was also modified to amorphous form during pretreatment. Both untreated and pretreated rice straw were subjected to anaerobic digestion to evaluate the influence of organic acid pretreatment on biogas production. The highest biogas yield was 322.1 ml/g-rice straw when using citric acid pretreatment which was 7.40 times higher than untreated biomass. These results demonstrated that organic acids can be used for pretreatment of lignocellulosic materials to enhance hydrolysis and biogas production.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
刻苦熠彤发布了新的文献求助10
刚刚
刚刚
1秒前
1秒前
1秒前
且放青山远完成签到,获得积分10
2秒前
达到应助乐观的海雪采纳,获得10
2秒前
荷包蛋完成签到,获得积分10
2秒前
鱼鱼鱼鱼鱼完成签到 ,获得积分10
2秒前
简行完成签到 ,获得积分10
2秒前
MAYFLYDAYS发布了新的文献求助10
3秒前
小华完成签到,获得积分10
3秒前
黎明锦葵完成签到,获得积分10
3秒前
3秒前
mumu完成签到,获得积分10
3秒前
3秒前
小青发布了新的文献求助10
4秒前
请叫我风吹麦浪应助vv采纳,获得10
4秒前
5秒前
6秒前
6秒前
徐逊完成签到,获得积分10
6秒前
西部牛仔发布了新的文献求助10
7秒前
鲤鱼鸽子应助ChiariRay采纳,获得10
8秒前
zhengpaipian发布了新的文献求助10
8秒前
科目三应助lemonli采纳,获得10
9秒前
9秒前
奇异喵发布了新的文献求助10
10秒前
1111应助哈哈哈采纳,获得10
10秒前
Owen应助LamChem采纳,获得10
10秒前
Jouleken完成签到,获得积分10
10秒前
11秒前
11秒前
。。。完成签到,获得积分10
11秒前
LLL发布了新的文献求助10
11秒前
前蹄儿完成签到,获得积分10
12秒前
12秒前
YU发布了新的文献求助10
12秒前
霸气映之发布了新的文献求助10
12秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3969383
求助须知:如何正确求助?哪些是违规求助? 3514211
关于积分的说明 11172730
捐赠科研通 3249476
什么是DOI,文献DOI怎么找? 1794909
邀请新用户注册赠送积分活动 875441
科研通“疑难数据库(出版商)”最低求助积分说明 804827