نتایج جستجو برای: novozym 435

تعداد نتایج: 4106  

Journal: :Catalysts 2022

Hydroxymethylfurfural esters (HMF-esters) have great potential for additive development; this reason, the goal of work was to study optimization esterification conversion HFM and lauric acid using two lipases: Novozym 435® biocatalyst immobilized lipase from Thermomyces lanuginosus (TL). For conversion, a three-level three-factorial Box–Behnken experimental design used. The models achieved good...

Journal: :Biomacromolecules 2007
Ann Olsson Mikael Lindström Tommy Iversen

The synthesis of polymers with tailored reactive functionalities plays an important role in the development of various materials for industrial and biomedical applications. In addition, there is a need to develop chemistry that is based on the use of biodegradable and renewable resources.1 Appreciable amounts of natural polyesters occur in higher plants as structural components, for example, cu...

2014
Carlos Luna Cristóbal Verdugo Enrique D Sancho Diego Luna Juan Calero Alejandro Posadillo Felipa M Bautista Antonio A Romero

Background: Novozym 435, a commercial lipase from Candida antarctica, recombinant, expressed in Aspergillus niger, immobilized on macroporous acrylic resin, has been already described in the obtention of biodiesel. It is here evaluated in the production of a new biofuel that integrates the glycerol as monoglyceride (MG) together with two fatty acid ethyl esters (FAEE) molecules by the applicati...

Journal: :Processes 2021

The enzymatic transesterification of Atlantic salmon (Salmo salar) oil was carried out using Novozym 435 (immobilized lipase from Candida antartica) to produce biodiesel. A response surface modelling design performed investigate the relationship between biodiesel yield and several critical factors, including enzyme concentration (5, 10, or 15%), temperature (40, 45, 50 °C), oil/alcohol molar ra...

2012
Laura Azócar Gustavo Ciudad Robinson Muñoz David Jeison Claudio Toro Rodrigo Navia

Fatty acid methyl ester (FAME) or biodiesel is a biofuel conventionally produced from edible oil and methanol, using an alkaline catalyst, through a transesterification reaction. As FAME is mostly produced from edible vegetable oils, crop soils are used for its production, increasing deforestation and producing a fuel more expensive than diesel. In addition, between 70 and 80% of the total FAME...

Journal: :Catalysts 2022

Ethyl esters of omega-3 fatty acids are active pharmaceutical ingredients used for the reduction in triglycerides treatment hyperlipidemia. Herein, an ultrasonic packed-bed bioreactor was developed continuous production docosahexaenoic acid (DHA) and eicosapentaenoic (EPA) ethyl from DHA+EPA concentrate acetate (EA) using immobilized lipase, Novozym® 435, as a biocatalyst. A three-level–two-fac...

Journal: :Journal of oleo science 2015
Yasutaka Shimotori Masayuki Hoshi Tetsuo Miyakoshi

A new enzymatic method for synthesis of enantiomerically enriched δ-hexadecalactone (3) based on the enzymatic kinetic resolution of N-methyl-5-acetoxyhexadecanamide (1) is described. A combination of lipase-catalyzed hydrolysis and amidation improved enantioselectivity. Lipase-catalyzed amidation was also investigated. Detailed screening of solvents and additive amines was performed. The addit...

Journal: :Processes 2022

An alternative to 5-hydroxymethyl-2-furfural (HMF), which is a promising furan derivative that can be used as starting material for the preparation of non-petroleum-derived polymeric materials from sugars, 5-acetoxymethyl-2-furfural (AMF). The less-hydrophilic acetyl group AMF has advantages over hydroxy HMF in terms thermal stability and isolation. In previous studies, fructose been along with...

Journal: :Journal of the American Oil Chemists' Society 2023

Feruloyl Soy Glyceride (FSG) is an all-natural replacement for petroleum-based ultraviolet absorbing ingredients currently used in sunscreens. It produced by the Novozym® 435-catalyzed transesterification of ethyl ferulate (EF) with triglycerides. By-product fatty acid esters (FAEEs) are more soluble CO2 than EF and triglyceride starting materials. was hypothesized that preferential removal FAE...

Journal: :Biochemical Society transactions 1990
G A O'Brien P A Whittaker

Novozym 234 (Novo lndustri A/S, Bagsraerd, Denmark) is a comparatively cheap and highly effective commercial preparation, derived from the fungus 7richoderma harziunum, which is used for the enzymic degradation of the cell wall in many yeasts and filamentous fungi in order to release protoplasts [ 1 , 21. The factors involved in protoplast isolation using this system have been investigated by C...

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