scholarly journals Enzymatic hydrolysis of bacterial cellulose in the presence of a non‐catalytic cerato‐platanin protein

2021 ◽  
pp. 51886
Author(s):  
Cesare Rovera ◽  
Simone Luti ◽  
Luigia Pazzagli ◽  
Ellen L. Heeley ◽  
Chaoying Wan ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Bacterial Cellulose ◽  
Hydrolysis Of

scholarly journals Pretreatments of Non-Woody Cellulosic Feedstocks for Bacterial Cellulose Synthesis

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1645 ◽  
Author(s):  
Ekaterina I. Kashcheyeva ◽  
Yulia A. Gismatulina ◽  
Vera V. Budaeva
Keyword(s):  
Enzymatic Hydrolysis ◽  
Bacterial Cellulose ◽  
High Performance ◽  
Combined Treatment ◽  
Single Stage ◽  
High Tech ◽  
Cellulose Synthesis ◽  
Oat Hulls ◽  
Naoh Solution ◽  
Hydrolysis Of

Pretreatment of biomass is a key step in the production of valuable products, including high-tech bacterial cellulose. The efficiency of five different pretreatment methods of Miscanthus and oat hulls for enzymatic hydrolysis and subsequent synthesis of bacterial cellulose (BC) was evaluated herein: Hydrothermobaric treatment, single-stage treatments with dilute HNO3 or dilute NaOH solution, and two-stage combined treatment with dilute HNO3 and NaOH solutions in direct and reverse order. The performance of enzymatic hydrolysis of pretreatment products was found to increase by a factor of 4−7. All the resultant hydrolyzates were composed chiefly of glucose, as the xylose percentage in total reducing sugars (RS) was 1−9%. The test synthesis of BC demonstrated good quality of nutrient media prepared from all the enzymatic hydrolyzates, except the hydrothermobaric treatment hydrolyzate. For biosynthesis of BC, single-stage pretreatments with either dilute HNO3 or dilute NaOH are advised due their simplicity and the high performance of enzymatic hydrolysis of pretreatment products (RS yield 79.7−83.4%).

Enzymatic hydrolysis of biomimetic bacterial cellulose–hemicellulose composites

2018 ◽  
Vol 190 ◽  
pp. 95-102 ◽  
Author(s):  
Paavo A. Penttilä ◽  
Tomoya Imai ◽  
Jarl Hemming ◽  
Stefan Willför ◽  
Junji Sugiyama
Keyword(s):  
Enzymatic Hydrolysis ◽  
Bacterial Cellulose ◽  
Hydrolysis Of

Enzymatic hydrolysis of bacterial cellulose

1997 ◽  
Vol 305 (2) ◽  
pp. 281-288 ◽  
Author(s):  
Masahiro Samejima ◽  
Junji Sugiyama ◽  
Kiyohiko Igarashi ◽  
Karl-Erik L. Eriksson
Keyword(s):  
Enzymatic Hydrolysis ◽  
Bacterial Cellulose ◽  
Hydrolysis Of

A study of properties and enzymatic hydrolysis of bacterial cellulose

Cellulose ◽  
2019 ◽  
Vol 26 (4) ◽  
pp. 2255-2265 ◽  
Author(s):  
Ekaterina I. Kashcheyeva ◽  
Evgenia K. Gladysheva ◽  
Ekaterina A. Skiba ◽  
Vera V. Budaeva
Keyword(s):  
Enzymatic Hydrolysis ◽  
Bacterial Cellulose ◽  
Hydrolysis Of

Microwave-assisted enzymatic hydrolysis of starch

2009 ◽  
Author(s):  
Marcin Lukasiewicz ◽  
Anna Osowiec ◽  
Magdalena Marciniak
Keyword(s):  
Enzymatic Hydrolysis ◽  
Microwave Assisted ◽  
Hydrolysis Of

Analyses of enzymatic hydrolysis of bagasse cane of sugar for obtention of ethanol employing a cocktail of natives commercials enzymes.  

2018 ◽  
Author(s):  
Ángel Batallas ◽  
Erenio González ◽  
Carmen Salvador ◽  
Jonathan Villavicencio ◽  
Humberto González Gavilánez ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Hydrolysis Of

Immobilized Nanoparticles-Mediated Enzymatic Hydrolysis of Cellulose for Clean Sugar Production: A Novel Approach

2019 ◽  
Vol 15 (3) ◽  
pp. 296-303 ◽  
Author(s):  
Swapnil Gaikwad ◽  
Avinash P. Ingle ◽  
Silvio Silverio da Silva ◽  
Mahendra Rai
Keyword(s):  
Catalytic Activity ◽  
Enzymatic Hydrolysis ◽  
Immobilized Enzyme ◽  
Free Enzyme ◽  
Magnetic Nanomaterials ◽  
Sugar Production ◽  
Cellulase Enzyme ◽  
Enzymatic Hydrolysis Of Cellulose ◽  
Hydrolysis Of Cellulose ◽  
Hydrolysis Of

Background: Enzymatic hydrolysis of cellulose is an expensive approach due to the high cost of an enzyme involved in the process. The goal of the current study was to apply magnetic nanomaterials as a support for immobilization of enzyme, which helps in the repeated use of immobilized enzyme for hydrolysis to make the process cost-effective. In addition, it will also provide stability to enzyme and increase its catalytic activity. Objective: The main aim of the present study is to immobilize cellulase enzyme on Magnetic Nanoparticles (MNPs) in order to enable the enzyme to be re-used for clean sugar production from cellulose. Methods: MNPs were synthesized using chemical precipitation methods and characterized by different techniques. Further, cellulase enzyme was immobilized on MNPs and efficacy of free and immobilized cellulase for hydrolysis of cellulose was evaluated. Results: Enzymatic hydrolysis of cellulose by immobilized enzyme showed enhanced catalytic activity after 48 hours compared to free enzyme. In first cycle of hydrolysis, immobilized enzyme hydrolyzed the cellulose and produced 19.5 ± 0.15 gm/L of glucose after 48 hours. On the contrary, free enzyme produced only 13.7 ± 0.25 gm/L of glucose in 48 hours. Immobilized enzyme maintained its stability and produced 6.15 ± 0.15 and 3.03 ± 0.25 gm/L of glucose in second and third cycle, respectively after 48 hours. Conclusion: This study will be very useful for sugar production because of enzyme binding efficiency and admirable reusability of immobilized enzyme, which leads to the significant increase in production of sugar from cellulosic materials.

Effect of removing hemicellulose and lignin synchronously under mild conditions on enzymatic hydrolysis of corn stover

2020 ◽  
Vol 204 ◽  
pp. 106407 ◽  
Author(s):  
Shengxin An ◽  
Wenzhi Li ◽  
Fengyang Xue ◽  
Xu Li ◽  
Ying Xia ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Corn Stover ◽  
Mild Conditions ◽  
Hydrolysis Of

In Situ Microscopy for In-line Monitoring of the Enzymatic Hydrolysis of Cellulose

2013 ◽  
Vol 85 (17) ◽  
pp. 8121-8126 ◽  
Author(s):  
Britta Opitz ◽  
Andreas Prediger ◽  
Christian Lüder ◽  
Marrit Eckstein ◽  
Lutz Hilterhaus ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Enzymatic Hydrolysis Of Cellulose ◽  
Hydrolysis Of Cellulose ◽  
Hydrolysis Of
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