Low Molecular Weight Chitosan from Shrimp Shell Waste using Steam-Explosion Process Under Catalyst of Phosphotungstic Acid

The limited solubility of chitosan had limiting its application in any fields. Low molecular weight chitosan (LWCS) potentially produced to improve its solubility and characteristics. Steam explosion process was used to breakdown the intermolecular hydrogen bonding and phosphotungstic acid used as c...

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Published in:Oriental journal of chemistry 2019-01, Vol.35 (1), p.193-199
Main Authors: Sugiyanti, Dina, Anggrahini, Sri, Pranoto, Yudi, Anwar, Chairil, Santoso, Umar
Format: Article
Language:English
Subjects:
Acids
Biopolymers
Catalysis
Catalysts
Chitosan
Explosions
Food
Functional groups
Hydrogen bonding
Lignin
Low molecular weights
Molecular weight
Solubility
Spectrum analysis
Weight reduction
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cited_by cdi_FETCH-LOGICAL-c228t-db8ef254d36957919d1348322caabba6ac52d2844fd5b4d93ab0b3c48e03a563
cites cdi_FETCH-LOGICAL-c228t-db8ef254d36957919d1348322caabba6ac52d2844fd5b4d93ab0b3c48e03a563
container_end_page 199
container_issue 1
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container_title Oriental journal of chemistry
container_volume 35
creator Sugiyanti, Dina
Anggrahini, Sri
Pranoto, Yudi
Anwar, Chairil
Santoso, Umar
description The limited solubility of chitosan had limiting its application in any fields. Low molecular weight chitosan (LWCS) potentially produced to improve its solubility and characteristics. Steam explosion process was used to breakdown the intermolecular hydrogen bonding and phosphotungstic acid used as catalyst to attact the glycosidic bond and produce shorter chain. The optimum temperature and phosphotungstic acid concentration on steam explosion process presented highest water solubility at T=160oC and 0.1%, respectively. It didn’t showed any change of functional group on FTIR analysis, no morphological damage by SEM analysis, and reduced the crystallinity. The particle size and molecular weight was reduced from 100 µm to 255 nm and 557 kDa to 4800 Da, respectively. It can be known that LWCS potentially produced with high solubility and fine characteristics through steam explosion process catalyzed by phosphotungstic acid.
doi_str_mv 10.13005/ojc/350122
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subjects Acids
Biopolymers
Catalysis
Catalysts
Chitosan
Explosions
Food
Functional groups
Hydrogen bonding
Lignin
Low molecular weights
Molecular weight
Solubility
Spectrum analysis
Weight reduction
title Low Molecular Weight Chitosan from Shrimp Shell Waste using Steam-Explosion Process Under Catalyst of Phosphotungstic Acid
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