Cellulose and hemicellulose recovery from oil palm empty fruit bunch (EFB) fibers and production of sugars from the fibers.

A sequential two-step treatment with peracetic acid (PA) and alkaline peroxide (AP) at mild temperatures (20-35°C) removed more than 98% of the lignin from oil palm empty fruit bunch (EFB) fiber. For each kilogram of EFB fiber treated, 200-250g of a solids fraction and 120-170g of a precipitate fraction were recovered after the treatment. Subsequent enzymatic hydrolysis (45°C, 72h) of the recovered solids (excluding the precipitate) resulted in a glucose yield of 629.8±0.5g per kg of the original dry EFB biomass. Enzymatic hydrolysis of untreated EFB yielded only 3.0±0.0g glucose per kg of dry EFB. Therefore, the PA-AP pretreatment enhanced glucose recovery from EFB by nearly 210-fold. The total treatment time was 93h (a 9h PA treatment at 35°C, a 12h treatment with AP (20°C, 4% NaOH), 72h of enzymatic hydrolysis). Copyright © 2016 Elsevier Ltd. All rights reserved.

Citation

Suriya Palamae, Pongsathorn Dechatiwongse, Wanna Choorit, Yusuf Chisti, Poonsuk Prasertsan. Cellulose and hemicellulose recovery from oil palm empty fruit bunch (EFB) fibers and production of sugars from the fibers. Carbohydrate polymers. 2017 Jan 02;155:491-497

PMID: 27702540

search → result