Results 141 to 150 of about 2,594 (158)

Chemical Interesterification of Blends of Palm Stearin, Coconut Oil, and Canola Oil: Physicochemical Properties

Journal of Agricultural and Food Chemistry, 2012
trans-Free interesterified fat was produced for possible usage as a margarine. Palm stearin, coconut oil, and canola oil were used as substrates for chemical interesterification. The main aim of the present study was to evaluate the physicochemical properties of blends of palm stearin, coconut oil, and canola oil submitted to chemical ...
Fabiana Andreia Schäfer De Martini, Soares, Roberta Claro, da Silva, Márcia, Hazzan, Isabele Renata, Capacla, Elise Raduan, Viccola, Jessica Mayumi, Maruyama, Luiz Antonio, Gioielli   +6 more
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Chemical interesterification of soybean oil and methyl acetate to FAME using CaO as catalyst

Fuel, 2020
Abstract This study evaluated calcium oxide as catalyst from calcium carbonate at different calcination temperatures and the hydration-dehydration technique was used to produce a nanocrystalline catalyst. CaO samples were characterized by XRD, thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy and ...
A.L.B. Nunes, F. Castilhos
openaire   +1 more source

Analysis of Products Obtained in Chemical Interesterification of Rapeseed Oil with Methyl Formate

Key Engineering Materials, 2019
Chemical interesterification is one possible way to produce biofuel from vegetable oils. Rapeseed oil interesterification with methyl formate using 1M tBuOK catalyst in tBuOH yields product in two layers. The upper layer contains fatty acid esters. Analysis of lower layer by 13C NMR method shows that it contains glycerol and glycerol formates.
Lauma Laipniece, Zane Abelniece, Valdis Kampars   +2 more
openaire   +1 more source

New trends in biodiesel production: Chemical interesterification of sunflower oil with methyl acetate

Biomass and Bioenergy, 2011
Abstract In this study, the chemical interesterification of oil with methyl acetate using potassium hydroxide, methoxide and polyethylene glycolate as catalysts was investigated. The reactions were performed at 50 °C using the range methyl acetate 12 mol mol −1 of refined sunflower oil to a value of 100 mol mol −1 and the range of potassium ...
Abraham Casas, María Jesús Ramos, Ángel Pérez   +2 more
openaire   +1 more source

Chemical and enzymatic interesterification of tristearin/ triolein‐rich blends: Chemical composition, solid fat content and thermal properties

European Journal of Lipid Science and Technology, 2008
AbstractBlends of high‐oleic sunflower oil and fully hydrogenated canola oil were subjected to enzymatic and chemical interesterification using Candida antarctica lipase (5%) and sodium methoxide (0.3%), respectively. The effect of each interesterification process was determined by comparing the triacylglycerol (TAG) composition, solid fat content (SFC)
Latifeh Ahmadi, Amanda J. Wright, Alejandro G. Marangoni   +2 more
openaire   +1 more source

How is chemical interesterification initiated: Nucleophilic substitution or α‐proton abstraction?

Journal of the American Oil Chemists' Society, 2004
AbstractEsters of carboxylic acids including 2‐methylhexanoic, 2‐methylbutyric, 2,2‐dimethyl‐4‐pentenoic, palmitic, and oleic acids were tested as substrates in methoxide‐catalyzed interesterification and transesterification. The aliphatic acid esters participated in the ester‐ester interchange upon addition of catalytic sodium methoxide.
openaire   +1 more source

Physical and chemical properties of trans‐free fats produced by chemical interesterification of vegetable oil blends

Journal of the American Oil Chemists' Society, 1998
AbstractFat blends, formulated by mixing a highly saturated fat (palm stearin or fully hydrogenated soybean oil) with a native vegetable oil (soybean oil) in different ratios from 10:90 to 75:25 (wt%), were subjected to chemical interesterification reactions on laboratory scale (0.2% sodium methoxide catalyst, time=90 min, temperature=90°C).
V. Petrauskaite, W. De Greyt, M. Kellens, A. Huyghebaert   +3 more
openaire   +1 more source

Chemical and enzymatic interesterification of a beef tallow and rapeseed oil equal‐weight blend

European Journal of Lipid Science and Technology, 2004
AbstractA mixture of beef tallow and rapeseed oil (1:1, wt/wt) was interesterified using sodium methoxide or immobilized lipases from Rhizomucor miehei (Lipozyme IM) and Candida antarctica (Novozym 435) as catalysts. Chemical interesterifications were carried out at 60 and 90 °C for 0.5 and 1.5 h using 0.4, 0.6 and 1.0 wt‐% CH3ONa.
Boleslaw Kowalski, Katarzyna Tarnowska, Eliza Gruczynska, Witold Bekas   +3 more
openaire   +1 more source

Pilot scale intensification of rubber seed (Hevea brasiliensis) oil via chemical interesterification using hydrodynamic cavitation technology

Bioresource Technology, 2017
Chemical interesterification of rubber seed oil has been investigated for four different designed orifice devices in a pilot scale hydrodynamic cavitation (HC) system. Upstream pressure within 1-3.5bar induced cavities to intensify the process. An optimal orifice plate geometry was considered as plate with 1mm dia hole having 21 holes at 3bar inlet ...
Awais, Bokhari, Suzana, Yusup, Lai Fatt, Chuah, Jiří Jaromír, Klemeš, Saira, Asif, Basit, Ali, Majid Majeed, Akbar, Ruzaimah Nik M, Kamil   +7 more
openaire   +2 more sources

Chemical Interesterification of Food Lipids

2002
Alejandro Marangoni, Dérick Rousseau
openaire   +1 more source