High yield hydrolysis of seaweed-waste biomass using peracetic acid and ionic liquid treatments

Uju, Agung Tri Wijayanta, Masahiro Goto, Noriho Kamiya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Seaweed is one of the most promising bioethanol feedstocks. This water plant has high carbohydrate content but low lignin content, as a result it will be easier to be hydrolysed. This paper described hydrolysis of seaweed-waste biomass from the carrageenan (SWBC) industry using enzymatic saccharification or ionic liquids-HCl hydrolysis. In the first work, SWBC pretreated by peracetic acid (PAA) followed by ionic liquid (IL) caused enhance the cellulose conversion of enzymatic saccharification. At 48h saccharification, the value conversion almost reached 100%. In addition, the untreated SWBC also produced the cellulose conversion 77%. In the second work, SWBC or Bagasse with or without pretreated by PAA was hydrolyzed using ILs-HCl hydrolysis. The ILs used were 1-buthyl-3-methylpyridium chloride, [Bmpy][Cl] and 1-butyl-3-metyl imidazolium chloride ([Bmim][Cl]). [Bmpy][Cl]-HCl hydrolysis produced higher cellulose conversion than [Bmim][Cl]-HCl hydrolysis. The phenomenon was clearly observed on the Bagasse, which without pretreated by PAA. Furthermore, SWBC hydrolyzed by both ILs in the presence low concentration of HCl produced cellulose conversion 70-98% at 60-90 min of hydrolysis time. High cellulose conversion of SWBC on the both hydrolysis was caused by SWBC had the low lignin (4%). Moreover, IL treatments caused lowering of cellulose hydrogen bonds or even changed the cellulose characteristics from cellulose I to cellulose II which easily to be hydrolyzed. In the case of [Bmpy][Cl], this IL may reduce the degree polymerization of celluloses.

Original languageEnglish
Title of host publication3rd International Conference on Industrial Mechanical, Electrical, and Chemical Engineering
Editors Fadilah, Adrian Nur, Anatta Wahyu Budiman, Sperisa Distantina, Ari Diana Susanti, Agung Tri Wijayanta
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416239
DOIs
Publication statusPublished - Feb 9 2018
Event3rd International Conference on Industrial Mechanical, Electrical, and Chemical Engineering, ICIMECE 2017 - Surakarta, Indonesia
Duration: Sep 13 2017Sep 14 2017

Publication series

NameAIP Conference Proceedings
Volume1931
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other3rd International Conference on Industrial Mechanical, Electrical, and Chemical Engineering, ICIMECE 2017
CountryIndonesia
CitySurakarta
Period9/13/179/14/17

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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