Paper Title
Production of Bioethanol and Biomaterials from Mangosteen Peelwaste by Popping Pretreatment
Abstract
Mangosteen peel waste (MPW) is lignocellulosic agricultural residues that has the potential to produce bioethanol
and bio-materials. This paper presents the multiple potential of bio-sugar, α-mangostin and bioethanol production from
mangosteen peel waste. The MPW can produce biosugar (164.7 g/kg MPW) from in-house produced cellulase and pectinase
at a 90 % conversion rate. The separate hydrolysis and fermentation (SHF) produce bioethanol (63.2 g/kg MPW) with an
ethanol conversion yield of 75 %. In addition, we attempted to enhance α-mangostin production by pretreatment and
enzymatic hydrolysis. The extraction of α-mangostin increased by 1.46-fold after a combination of popping pretreatment and
enzymatic hydrolysis. These results suggest that popping pretreatment can improve the bio-sugar, α-mangostin and
bioethanol production of MPW.
Keywords - Mangosteen peel, popping pretreatment, Bio-sugar, Bioethanol