Results 11 to 20 of about 179 (133)

Estolides synthesis catalyzed by immobilized lipases. [PDF]

Enzyme Res, 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 EC, Veloso CO, Bevilaqua JV, Rosas DO, da Silva MA, Langone MA.   +5 more
europepmc   +5 more sources

Lipase‐mediated plant oil hydrolysis—Toward a quantitative glycerol recovery for the synthesis of pure allyl alcohol and acrylonitrile

European Journal of Lipid Science and Technology, Volume 125, Issue 9, September 2023., 2023
Selection of a suitable lipase provides for quantitative hydrolysis of triacylglycerides without unwanted coproducts. Optimization of the reaction in solely water as sole reaction medium allows for cost efficient conversion of plant oils and and recovery of a highly pure glycerol product as precursor for acrylonitrile synthesis as well as free fatty ...
Felix Melcher, Ferdinand Vogelgsang, Martina Haack, Mahmoud Masri, Marion Ringel, Arne Roth, Daniel Garbe, Thomas Brück   +7 more
wiley   +1 more source

Toward sustainable production of value‐added bioenergy and industrial oils in oilseed and biomass feedstocks

GCB Bioenergy, Volume 13, Issue 10, Page 1610-1623, October 2021., 2021
Triacylglycerols (TAGs), the principal component of plant vegetable oils, are energy‐dense storage forms of fatty acids that can function as feedstocks for biofuels and bioproducts. The value of TAGs for these non‐food applications can be enhanced by the introduction of unusual fatty acids with structural modifications that expand vegetable oil ...
Kiyoul Park, Sanju A. Sanjaya, Truyen Quach, Edgar B. Cahoon   +3 more
wiley   +1 more source

Synthesis and physical properties of estolide ester using saturated Fatty Acid and ricinoleic Acid. [PDF]

J Autom Methods Manag Chem, 2011
A study was conveyed to produce estolide ester using ricinoleic acid as the backbone. The ricinoleic acid reacted with saturated fatty acid from C8–C18. These reactions were conducted under vacuum at 60°C for 24 h without solvent. The reaction used acid catalyst, sulphuric acid.
Salimon J, Nallathamby N, Salih N, Abdullah BM.   +3 more
europepmc   +2 more sources

Chlorinated Phospholipids and Fatty Acids: (Patho)physiological Relevance, Potential Toxicity, and Analysis of Lipid Chlorohydrins

Oxidative Medicine and Cellular Longevity, Volume 2016, Issue 1, 2016., 2016
Chlorinated phospholipids are formed by the reaction of hypochlorous acid (HOCl), generated by the enzyme myeloperoxidase under inflammatory conditions, and the unsaturated fatty acyl residues or the head group. In the first case the generated chlorohydrins are both proinflammatory and cytotoxic, thus having a significant impact on the structures of ...
Jenny Schröter, Jürgen Schiller, Kota V. Ramana   +2 more
wiley   +1 more source

The Food Additive Polyglycerol Polyricinoleate (E‐476): Structure, Applications, and Production Methods

International Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
The food additive named polyglycerol polyricinoleate (PGPR) and identified with the code E‐476 (PGPR) is used as emulsifier in tin‐greasing emulsions for the baking trade and for the production of low‐fat spreads. However, the main application of PGPR is in the chocolate industry, where, besides its action as an emulsifier, it also has important ...
Josefa Bastida-Rodríguez, M. Assael, Z. Fang, A. Gil, F. Lefebvre, J. Subrt, J. E. Ten Elshof   +6 more
wiley   +1 more source

Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics

BioMed Research International, Volume 2012, Issue 1, 2012., 2012
Linoleic acid (LA) is converted to per‐carboxylic acid catalyzed by an immobilized lipase from Candida antarctica (Novozym 435). This per‐carboxylic acid is only intermediate and epoxidized itself in good yields and almost without consecutive reactions.
Jumat Salimon, Nadia Salih, Rumiana Koynova, Bashar Mudhaffar Abdullah   +3 more
wiley   +1 more source

Enzymatic biosynthesis of ricinoleic acid estolides

Biochemical Engineering Journal, 2005
Abstract Candida rugosa lipase has been shown to have sufficient activity to catalyse the enzymatic synthesis of ricinoleic acid estolides in a batch reactor. The water requirements of the reactor change during the reaction: at the beginning of the process a minimum amount of water is necessary but, later, the reaction mixture must be dried out to ...
Bódalo-Santoyo, A., Bastida Rodríguez, Josefa, Máximo Martín, María Fuensanta, Montiel Morte, María Claudia, Murcia Almagro, María Dolores   +4 more
openaire   +2 more sources

Plant-Based Oils for Sustainable Lubrication Solutions—Review

Lubricants
Traditional lubricants, often containing harmful chemicals and synthetic or fossil-derived oils, pose environmental risks by damaging ecosystems and threatening human health and wildlife. There is a growing demand for environmentally sustainable and cost-
Diana Berman
doaj   +1 more source

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

Journal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo, Simoni Margareti Plentz Meneghetti, Mario Roberto Meneghetti, Janaína Heberle Bortoluzzi   +3 more
wiley   +1 more source