Modification of microcrystalline cellulose structural properties by ball-milling and ionic liquid treatments and their correlation to enzymatic hydrolysis rate and yield

Cellulose ◽  
2019 ◽  
Vol 26 (12) ◽  
pp. 7323-7335 ◽  
Author(s):  
Felipe Tadeu Fiorini Gomide ◽  
Ayla Sant’Ana da Silva ◽  
Elba Pinto da Silva Bon ◽  
Tito Lívio Moitinho Alves
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Ball Milling ◽  
Structural Properties ◽  
Microcrystalline Cellulose ◽  
Hydrolysis Rate

Use of cellobiohydrolase-free cellulase blends for the hydrolysis of microcrystalline cellulose and sugarcane bagasse pretreated by either ball milling or ionic liquid [Emim][Ac]

2013 ◽  
Vol 149 ◽  
pp. 551-555 ◽  
Author(s):  
Ricardo Sposina Sobral Teixeira ◽  
Ayla Sant’Ana da Silva ◽  
Han-Woo Kim ◽  
Kazuhiko Ishikawa ◽  
Takashi Endo ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ball Milling ◽  
Sugarcane Bagasse ◽  
Microcrystalline Cellulose ◽  
Hydrolysis Of

Cellulose Saccharification after Ultrasonic- Assisted Ionic Liquid [Amim][ HCOO] Pretreatment

2011 ◽  
Vol 236-238 ◽  
pp. 169-172
Author(s):  
Zhen Liu ◽  
Lei Ming Lu
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Initial Rate ◽  
Hydrolysis Rate ◽  
Rate Of Polymerization ◽  
Ultrasonic Assisted ◽  
Pretreatment Temperature ◽  
Ft Ir ◽  
Ir Analysis ◽  
Methyl Imidazole

In this study we used 1-allyl-3-methyl imidazole formate ([Amim][HCOO]) as ionic liquid to pre-treat the cellulose and determined the rate of polymerization and enzymatic hydrolysis. The results showed that pretreatment with ([Amim][HCOO]) significantly decreased the cellulose polymerization. As the pretreatment temperature went up, the enzymatic hydrolysis rate was first increased and then decreased. The maximal enzymatic hydrolysis rate was achieved when the pretreatment temperature was 90°C. Under the ultrasonic condition, the initial rate of enzymatic hydrolysis for the ionic liquid-treated cellulose was up to 11.10 gL-1h-1, which was 33% increase compared to the untreated cellulose. Scanning Electronic Microscopy (SEM) and Fourier Transform Infrared-Raman Spectroscop (FT-IR) analysis showed that ionic liquid- treated cellulose started to depolymerize. In addition, the crystallinity of the cellulose was significantly decreased after pretreatment with ionic liquid.

Effects of synergistic modification with enzymatic hydrolysis and phosphorylation on functional and structural properties of ovalbumin

2020 ◽  
Vol 44 (12) ◽  
Author(s):  
Lili Liu ◽  
Yuanyuan Li ◽  
Xiaoning Dai ◽  
Yang Zhu ◽  
Weiming Hao ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Structural Properties

Catalytic Depolymerization of Microcrystalline Cellulose Accomplished in an Ionic Liquid

2014 ◽  
Author(s):  
Matthew Foley ◽  
Luke Haverhals ◽  
David Klein ◽  
William McIlvain ◽  
Matthew Reichert ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Microcrystalline Cellulose

Combination of dilute acid and ionic liquid pretreatments of sugarcane bagasse for glucose by enzymatic hydrolysis

2013 ◽  
Vol 48 (12) ◽  
pp. 1942-1946 ◽  
Author(s):  
Li-Qun Jiang ◽  
Zhen Fang ◽  
Xing-Kang Li ◽  
Jia Luo ◽  
Suet-Pin Fan
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Sugarcane Bagasse ◽  
Dilute Acid

Ionic Liquid 1-Butyl-3-Methylimidazolium Chloride/FeCl3 Pretreatment of Sugarcane Residue for Second Generation Bioethanol Production

2013 ◽  
Vol 275-277 ◽  
pp. 1662-1665 ◽  
Author(s):  
Qiang Li ◽  
Juan Juan Fei ◽  
Xu Ding Gu ◽  
Geng Sheng Ji ◽  
Yang Liu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Low Temperature ◽  
Second Generation ◽  
Reducing Sugars ◽  
Enzymatic Saccharification ◽  
Cellulosic Biomass ◽  
Candida Shehatae ◽  
Second Generation Bioethanol ◽  
Temperature Pretreatment

This study aims to establish a natural cellulosic biomass pretreatment process using ionic liquid (IL) for efficient enzymatic hydrolysis and second generation bioethanol. The IL 1-Butyl-3-methylimidazolium Chloride/FeCl3 ([Bmim]Cl/FeCl3) was selected in view of its low temperature pretreatment ability and the potential of accelerating enzymatic hydrolysis, and it could be recyclable. The yield of reducing sugars from sugarcane residue pretreated with this IL at 80 oC for 1 h reached 46.8% after being enzymatically hydrolyzed for 24 h. Sugarcane residue regenerated were hydrolyzed more easily than that treated with water. The fermentability of the hydrolyzates, obtained after enzymatic saccharification of the regenerated sugarcane residue, was transformed into bioethanol using Candida shehatae. This microbe could absorb glucose and xylose efficiently, and the ethanol production was 0.38 g/g glucose within 30 h fermentation. In conclusion, the metal ionic liquid pretreatment in low temperature shows promise as pretreatment solvent for natural biomass.

Evaluation of thermomechanical pretreatment for enzymatic hydrolysis of pure microcrystalline cellulose and cellulose from Brewers’ spent grain

2011 ◽  
Vol 54 (3) ◽  
pp. 305-310 ◽  
Author(s):  
Guillaume Pierre ◽  
Frédéric Sannier ◽  
Romain Goude ◽  
Armelle Nouviaire ◽  
Zoulikha Maache-Rezzoug ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Microcrystalline Cellulose ◽  
Spent Grain ◽  
Hydrolysis Of
Sign in / Sign up

Export Citation Format

Share Document