Results 21 to 30 of about 160,648 (208)

OPTIMIZATION OF LIPASE IMMOBILIZATION [PDF]

International Journal of Engineering, 2012
Pseudomonas aeruginosa BBRC-10036 was used for lipase production. The organism secreted the enzyme extracellulary. In order to purify the enzyme, precipitation was done first, and then this lipase has been purified by Ion exchange Chromatography leading to 2.3-fold purification and 11.47% recovery.
openaire   +1 more source

Estolides Synthesis Catalyzed by Immobilized Lipases [PDF]

Enzyme Research, 2011
Estolides are vegetable-oil-based lubricants obtained from oleic acid or any source of hydroxy fatty acids. In this work, the estolides synthesis from oleic acid and methyl ricinoleate (biodiesel from castor oil), using immobilized commercial lipases (Novozym 435, Lipozyme RM-IM, and Lipozyme TL-IM) in a solvent-free medium was investigated. Acid value
Aguieiras, Erika C. G., Veloso, Cláudia O., Bevilaqua, Juliana V., Rosas, Danielle O., da Silva, Mônica A. P., Langone, Marta A. P.   +5 more
openaire   +2 more sources

Efficient Improving the Activity and Enantioselectivity of Candida rugosa Lipase for the Resolution of Naproxen by Enzyme Immobilization on MCM-41 Mesoporous Molecular Sieve [PDF]

International Journal Bioautomation, 2015
Lipase from Candida rogusa was immobilized on MCM-41 mesoporous molecular sieves in a trapped aqueous-organic biphase system for the resolution of racemic naproxen methyl ester.
Ying Chen, Yi Xu, Xiao-mei Wu
doaj  

Enzymatic glicerolysis of CPO using immobilized lipase for production of diacyl- and monoacyl glycerol

Menara Perkebunan, 2019
CPO is one of the largest plantation commodities that has a lot of derrivative products, among others are DiAcyl Glycerol (DAG) and MonoAcyl Glycerol (MAG).
Tri_Panji, Firda Dimawarnita, Irma Kresnawaty, Susy Saadah, Tri Aminingsih, Mira Miranti   +5 more
doaj   +1 more source

Activated Carbon as Support for Lipase Immobilization

Eurasian Chemico-Technological Journal, 2003
Lipase from Candida rugosa was immobilized onto four different types of activated carbon; KI/2030, KI/3040, KI/5060 and KI/6070. The immobilized lipase was used in the esterification of oleic acid and 1- butanol in hexane. The effects of difference pore
Mohd Basyaruddin Abdul Rahman, Mahiran Basri, Mohd Zobir Hussein, Raja Nor Zaliha Raja Abdul Rahman, Yau Kim Yan, Abu Bakar Salleh   +5 more
doaj   +1 more source

Biodiesel Production from Dairy Waste Scum by Using a Efficient Nano-biocatalyst

Chemical Engineering Transactions, 2020
In the present paper, magnetic nanoparticles (Fe3O4 NPs) covered with tartaric acid (TA) have been synthesized through an "eco-friendly approach" and subsequently used for direct physical immobilization of the lipase from Thermomyces lanuginous (TLL ...
Maria Sarno, Mariagrazia Iuliano
doaj   +1 more source

Catalyzed Ester Synthesis Using Candida rugosa Lipase Entrapped by Poly(N-isopropylacrylamide-co-itaconic Acid) Hydrogel

The Scientific World Journal, 2014
This study reports the synthesis of polymeric matrices based on N-isopropylacrylamide and itaconic acid and its application for immobilization of lipase from Candida rugosa. The lipase was immobilized by entrapment method.
Nikola Milašinović, Sonja Jakovetić, Zorica Knežević-Jugović, Nedeljko Milosavljević, Marija Lučić, Jovanka Filipović, Melina Kalagasidis Krušić   +6 more
doaj   +1 more source

A Performance Study of Home-Made Co-Immobilized Lipase from Mucor miehei in Polyurethane Foam on The Hydrolysis of Coconut Oil to Fatty Acid

Bulletin of Chemical Reaction Engineering & Catalysis, 2019
Bio‐based fatty acids (FAs) produced through hydrolysis of natural oils and fats are promising chemical feedstocks for increasing  the economic value of renewable raw materials.
Dwina Moentamaria, Maktum Muharja, Tri Widjaja, Arief Widjaja   +3 more
doaj   +1 more source

Enzymatic Interesterification of Crude Palm Oil with Methyl acetate: Effect of Pre-treatment, Enzyme’s Dosage and Stability

Bulletin of Chemical Reaction Engineering & Catalysis, 2023
In the present study, biodiesel was produced via the enzymatic interesterification of Crude Palm Oil (CPO) and methyl acetate within ultrasonic condition. In contrast to alcohol, methyl acetate as an acyl acceptor does not inhibit lipase activity and can
Muhammad Zarin Amin Zainal, Harumi Veny, Fazlena Hamzah, Miradatul Najwa Muhd Rodhi, Andri Cahyo Kumoro, Ratna Dewi Kusumaningtyas, Haniif Prasetiawan, Dhoni Hartanto   +7 more
doaj   +1 more source

Hydrophobic pore space constituted in macroporous ZIF-8 for lipase immobilization greatly improving lipase catalytic performance in biodiesel preparation

Biotechnology for Biofuels, 2020
Background During lipase-mediated biodiesel production, by-product glycerol adsorbing on immobilized lipase is a common trouble that hinders enzymatic catalytic activity in biodiesel production process.
Yingli Hu, Lingmei Dai, Dehua Liu, Wei Du   +3 more
doaj   +1 more source