Characteristics of cellulose from oil palm mesocarp fibres extracted by multi-step pretreatment methods

[摘要] Characteristics of cellulose isolated from oil palm mesocarp fiber (OPMF) using multi-step pretreatment methods were determined in this study. It was postulated that the succession of pretreatment steps for cellulose extraction from lignocellulosic biomass may affect the cellulose properties. Pretreatment steps involved in cellulose extraction were superheated steam (SHS) treatment, enzymatic hydrolysis and alkaline treatment. OPMF was subjected to SHS treatment to open up the fibres wall structure followed by enzymatic hydrolysis using xylanase for effectiveness enhancement the alkaline treatment afterwards. In order to obtain bleached cellulose, peracetic acid, a totally chlorine free (TCF) chemical was used. Cellulose obtained from these multi-step pretreatment methods had purity of 87.5 %, with crystallinity of 69.2 % and thermally stable up to 360°C.

[发布机构] Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor; 43400, Malaysia^1;Laboratory of Biopolymer and Derivatives, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, Selangor; 43400, Malaysia^2;Eco-Town Collaborative RandD Center for the Environment and Recycling, Kyushu Institute of Technology, 2-4 Hibikino, Kitakyushu, Wakamatsu-ku, Fukuoka; 808-0196, Japan^3

[学科分类] 生物科学（综合）

[关键词] Alkaline treatment;Bleached cellulose;Cellulose extraction;Lignocellulosic biomass;Pretreatment methods;Superheated steam;Thermally stable;Totally chlorine-free