Results 21 to 30 of about 7,049 (167)

A New Approach to Produce Resveratrol by Enzymatic Bioconversion

Journal of Microbiology and Biotechnology, 2016
An enzymatic reaction system was developed and optimized for bioconversion of resveratrol from glucose. Liquid enzyme extracts were prepared from Alternaria sp. MG1, an endophytic fungus from grape, and used directly or after immobilization with sodium alginate. When the enzyme solution was used, efficient production of resveratrol was found within 120
Jinxin, Che, Junling, Shi, Zhenhong, Gao, Yan, Zhang   +3 more
openaire   +2 more sources

Development of a Novel Bi-Enzymatic Nanobiocatalyst for the Efficient Bioconversion of Oleuropein to Hydroxytyrosol [PDF]

Catalysts, 2021
Lipase A from Candida antarctica (CalA) and β-glucosidase from Thermotoga maritima (bgl) were covalently co-immobilized onto the surface of chitosan-coated magnetic nanoparticles (CS-MNPs). Several parameters regarding the co-immobilization procedure (glutaraldehyde concentration, incubation time, CS-MNPs to enzyme mass ratio and bgl to CalA mass ratio)
Archontoula Giannakopoulou, Alexandra V. Chatzikonstantinou, Nikolaos Chalmpes, Georgia Tsapara, Dimitrios Gournis, Angeliki C. Polydera, Haralambos Stamatis   +6 more
openaire   +1 more source

Enzymatic Conversion of Different Qualities of Refined Softwood Hemicellulose Recovered from Spent Sulfite Liquor

Molecules, 2022
Spent sulfite liquor (SSL) from softwood processing is rich in hemicellulose (acetyl galactoglucomannan, AcGGM), lignin, and lignin-derived compounds.
Abhishek Bhattacharya, Samuel Butler, Basel Al-Rudainy, Ola Wallberg, Henrik Stålbrand   +4 more
doaj   +1 more source

Safety of the proposed amendment of the specifications for steviol glycosides (E 960) as a food additive: Rebaudioside M produced via enzyme‐catalysed bioconversion of purified stevia leaf extract

EFSA Journal, 2019
The EFSA Panel on Food Additives and Flavourings (FAF) provides a scientific opinion on the safety of the proposed amendment of the specifications for steviol glycosides (E 960) as a food additive, in particular related to rebaudioside M produced via ...
EFSA Panel on Food Additives and Flavourings (FAF), Maged Younes, Gabriele Aquilina, Karl‐Heinz Engel, Paul Fowler, Maria Jose Frutos Fernandez, Peter Fürst, Rainer Gürtler, Ursula Gundert‐Remy, Trine Husøy, Wim Mennes, Peter Moldeus, Agneta Oskarsson, Romina Shah, Ine Waalkens‐Berendsen, Detlef Wölfle, Gisela Degen, David Gott, Jean‐Charles Leblanc, Lieve Herman, Jaime Aguilera, Alessandra Giarola, Ana M Rincon, Laurence Castle   +23 more
doaj   +1 more source

Bioconversion of lignocellulose: inhibitors and detoxification

Biotechnology for Biofuels, 2013
Bioconversion of lignocellulose by microbial fermentation is typically preceded by an acidic thermochemical pretreatment step designed to facilitate enzymatic hydrolysis of cellulose.
Jönsson Leif J, Alriksson Björn, Nilvebrant Nils-Olof   +2 more
doaj   +1 more source

Optimum Bioconversion Process of Wheat Straw to Glucose: Ethanol Pretreatment

BioResources, 2014
The research aimed at optimizing the conditions of pretreatment of wheat straw and of enzymatic hydrolysis of the cellulose (ethanol pulp). The ethanol pretreatment process involving acid-catalytic and enzymatic hydrolysis were evaluated for ...
Lanfeng Hui, Huangwei Xiong, Kunlun Du
doaj   +1 more source

Investigations into Enzymatic Bioconversion to Form Rebaudioside A from Stevioside

Periodica Polytechnica Chemical Engineering, 2018
Stevia rebaudiana Bertoni is a perennial shrub from South America that produces steviol glycosides which are 200-300 times sweeter than sugar. Stevioside and rebaudioside A are the main sweetening components of its leaves. Steviol glycosides are diterpenoids whose biosynthetic pathways have four steps in common with gibberellic acid formation. The most
Réka Czinkóczky, Áron Németh
openaire   +2 more sources

Determination of optimal biomass pretreatment strategies for biofuel production: investigation of relationships between surface-exposed polysaccharides and their enzymatic conversion using carbohydrate-binding modules

Biotechnology for Biofuels, 2018
Background Pretreatment of lignocellulosic biomass (LCB) is a key step for its efficient bioconversion into ethanol. Determining the best pretreatment and its parameters requires monitoring its impacts on the biomass material.
Vinay Khatri, Fatma Meddeb-Mouelhi, Kokou Adjallé, Simon Barnabé, Marc Beauregard   +4 more
doaj   +1 more source

Optimization of Bioethanol Production from Enzymatic Treatment of Argan Pulp Feedstock

Molecules, 2021
Argan pulp is an abundant byproduct from the argan oil process. It was investigated to study the feasibility of second-generation bioethanol production using, for the first time, enzymatic hydrolysis pretreatment.
Jihane Zeghlouli, Gwendoline Christophe, Amine Guendouz, Cherkaoui El Modafar, Abdeljalil Belkamel, Philippe Michaud, Cédric Delattre   +6 more
doaj   +1 more source

Substrate Specificity and Enzyme Recycling Using Chitosan Immobilized Laccase

Molecules, 2014
The immobilization of laccase (Aspergillus sp.) on chitosan by cross-linking and its application in bioconversion of phenolic compounds in batch reactors were studied.
Everton Skoronski, Mylena Fernandes, Maria de Lourdes Borba Magalhães, Gustavo Felippe da Silva, Jair Juarez João, Carlos Henrique Lemos Soares, Agenor Fúrigo Júnior   +6 more
doaj   +1 more source