Chemical composition, pretreatments and saccharification of Senna siamea (Lam.) H.S. Irwin & Barneby: An efficient biomass producing tree legume. (May 2016)

• Record Type: Journal Article
• Authors: Mund, Nitesh K.; Dash, Debabrata; Barik, Chitta R.; Goud, Vaibhav V.; Sahoo, Lingaraj; Mishra, Prasannajit; Nayak, Nihar R.
• Is Part Of: Bioresource technology. Volume 207(2016)
• Page Start: 205
• Page End: 212
• Publication Date: 2016-05
• Subjects: Bioethanol -- Biomass composition -- Pretreatments -- Saccharification -- Senna siamea; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2016.01.118
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: A novel legume tree " Senna siamea " producing high biomass was identified. Glucan, hemicellulose and lignin contents of the biomass analysed. The 2 years old coppice biomass contains 39.59% fermentable glucose. COSLIF pretreatment found to be more efficient than alkali in releasing glucose. Using the glucose released (%), theoretical ethanol yield was calculated. Abstract: Protocols were developed for efficient release of glucose from the biomass of Senna siamea, one of the highly efficient biomass producing tree legumes. Composition of mature, 1 year and 2 years coppice biomass were analysed. For the hydrolysis of the glucan, two pretreatments, cellulose solvent- and organic solvent-based lignocellulose fractionation (COSLIF) and alkali (sodium hydroxide) were used; COSLIF (85% phosphoric acid, 45 min incubation at 50 °C) pretreated mature biomass exhibited best result in which 88.90% glucose released after 72 h of incubation with the use of 5 filter paper units (FPU) of cellulase and 10 international units (IU) of β -glucosidase per gram of glucan. Of the biomass of different particle sizes (40–200 mesh) used for saccharification, 40–60 mesh shown the maximum glucose release. COSLIF pretreated mature, 1 year and 2 years coppice biomass showed equivalent glucose release profiles.