Super acid catalyzed dimerization of fatty acids derived from safflower oil and dehydrated castor oil

1988 ◽  
Vol 65 (5) ◽  
pp. 793-797 ◽  
Author(s):  
R. A. Rajadhyaksha ◽  
D. D. Chaudharl ◽  
G. W. Joshi
Keyword(s):  
Fatty Acids ◽  
Castor Oil ◽  
Safflower Oil ◽  
Super Acid ◽  
Acid Catalyzed

Monoradically luminescent polymers by a super acid-catalyzed polymerization and deep-red electroluminescence

2020 ◽  
Vol 63 (9) ◽  
pp. 1214-1220 ◽  
Author(s):  
Kebin An ◽  
Guohua Xie ◽  
Shaolong Gong ◽  
Zhanxiang Chen ◽  
Xiang Zhou ◽  
...  
Keyword(s):  
Luminescent Polymers ◽  
Super Acid ◽  
Acid Catalyzed ◽  
Catalyzed Polymerization

Characteristics of Solid Super Acid SO42-/TiO2-Al2O3-SnO2 during Conversion of Glucose to Levulinic Acid

2012 ◽  
Vol 550-553 ◽  
pp. 103-106
Author(s):  
Ying Liu ◽  
Lu Lin ◽  
Xiao Yu Sui ◽  
Jun Ping Zhuang ◽  
Chun Sheng Pang
Keyword(s):  
Binding Energy ◽  
Levulinic Acid ◽  
Diffraction Peak ◽  
Catalyst Amount ◽  
Hydroxymethyl Furfural ◽  
Good Catalytic Activity ◽  
Super Acid ◽  
Diffraction Peaks ◽  
Acid Catalyzed ◽  
Hydrolysis Of

The effects of catalyst amount on the yields of levulinic and hydroxymethyl furfural were investigated during conversion of glucose to levulinic acid catalyzed by solid super acid SO42- / TiO2-Al2O3-SnO2. XRD and XPS were used to analyse the characteristics of solid super acid SO42- / TiO2-Al2O3-SnO2 before reaction and after reaction. The results showed that: solid super acid SO42- / TiO2-Al2O3-SnO2exhibited good catalytic activity in the reaction of hydrolysis of glucose to produce levulinic acid. There were three obvious peaks in these XRD spectra. The peaks on 44.6° and 67.1° were the characteristic diffraction peaks of γ-Al2O3. The anatase characteristic diffraction peak was on 37.4°. The catalyst was steady in the process. The binding energy of S 2p was similar to the binding energy of standard S6+ 2p in the S 2p XPS spectrum of solid super acid. O 1s XPS was double-peaked spectrum. The increase of element C was the main reason of inactivation of catalyst.

A heterogeneous acid-catalyzed process for biodiesel production from enzyme hydrolyzed fatty acids

AIChE Journal ◽  
2007 ◽  
Vol 54 (1) ◽  
pp. 327-336 ◽  
Author(s):  
Chia-Hung Su ◽  
Chun-Chong Fu ◽  
James Gomes ◽  
I-Ming Chu ◽  
Wen-Teng Wu
Keyword(s):  
Fatty Acids ◽  
Biodiesel Production ◽  
Acid Catalyzed

Keto Fatty Acids Derived from Castor Oil. II. Epoxy and Hydroxy Acids1,2

1958 ◽  
Vol 80 (21) ◽  
pp. 5711-5713 ◽  
Author(s):  
Joseph Nichols ◽  
Edgar Schipper
Keyword(s):  
Fatty Acids ◽  
Castor Oil

E476: Polyglycerol esters of polycondensed fatty acids of castor oil

2004 ◽  
pp. 209-211
Author(s):  
Roger Wood ◽  
Lucy Foster ◽  
Andrew Damant ◽  
Pauline Key
Keyword(s):  
Fatty Acids ◽  
Castor Oil ◽  
Polyglycerol Esters

Novel experimental protocol to increase specific plasma nonesterified fatty acids in humans

2003 ◽  
Vol 284 (1) ◽  
pp. E18-E24 ◽  
Author(s):  
Carine Beysen ◽  
Abigail K. Belcher ◽  
Fredrik Karpe ◽  
Barbara A. Fielding ◽  
Emilio Herrera ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Olive Oil ◽  
Palm Stearin ◽  
Safflower Oil ◽  
Experimental Protocol ◽  
Plasma Nefa ◽  
Heparin Infusion ◽  
Nonesterified Fatty Acids ◽  
Abundant Fatty Acid ◽  
Low Dose Heparin

This study reports a novel protocol to increase plasma monounsaturated, polyunsaturated, and saturated nonesterified fatty acids (NEFA) in eight healthy volunteers (age 29–54 yr, body mass index 23–26 kg/m2). This was achieved by feeding small boluses of fat at different time points (35 g at 0 min and 8 g at 30, 60, 90, 120, 150, 180, and 210 min) in combination with a continuous low-dose heparin infusion. Olive oil, safflower oil, or palm stearin were used to increase monounsaturated, polyunsaturated, or saturated NEFAs, respectively. Plasma NEFA concentrations were increased for 2 h, when fat and heparin were given (olive oil: 745 ± 35 μmol/l; safflower oil: 609 ± 37 μmol/l, and palm stearin: 773 ± 38 μmol/l) compared with the control test (no fat and no heparin: 445 ± 41 μmol/l). During the heparin infusion, 18:1 n-9 was the most abundant fatty acid for the olive oil test compared with 18:2 n-6 for the safflower oil test and 16:0 for the palm stearin test ( P < 0.01). The method described here successfully increases several types of plasma NEFA concentrations and could be used to investigate differential effects of elevated individual NEFAs on metabolic processes.

Artificial neural network and multi-criterion decision making approach of designing a blend of biodegradable lubricants and investigating its tribological properties

2020 ◽  
pp. 135065012096575
Author(s):  
Shubrajit Bhaumik ◽  
M Kamaraj
Keyword(s):  
Neural Network ◽  
Decision Making ◽  
Fatty Acids ◽  
Castor Oil ◽  
Mineral Oil ◽  
Computational Techniques ◽  
Extreme Pressure ◽  
Cashew Nut Shell Liquid ◽  
Cashew Nut ◽  
Cashew Nut Shell

Various blends containing glycerol, castor oil (NCO) and cashew nut shell liquid (CNSL) were made following soft computational techniques and the blend consisting 60% glycerol and 40% NCO was proposed, which exhibited 37% less coefficient of friction (CoF) than NCO and CNSL and 50% less CoF and comparable extreme pressure properties to non-biodegradable commercial mineral oil (CMO). Accelerated wear was indicated by particle quantifier index for CMO, NCO and CNSL samples while normal wear was observed in glycerol and the proposed blend. SEM and 3-D profilometer images exhibited more damaged surfaces in NCO and CNSL than other lubricants. Raman spectra indicated the presence of FeOOH, OH, HOH and fatty acids on the wear tracks of the proposed blend.

Effects of supplementation with safflower oil on voluntary feed intake and tissue fatty acid composition of steers fed low quality hay ad libitum

1993 ◽  
Vol 33 (6) ◽  
pp. 693 ◽  
Author(s):  
JC O'Kelly ◽  
WG Spiers
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Feed Intake ◽  
Blood Platelets ◽  
Safflower Oil ◽  
Body Protein ◽  
Voluntary Feed Intake

The effect of safflower oil supplement (200 mL/day) on voluntary feed intake and fatty acid composition of plasma, blood platelets, subcutaneous adipose tissue, and M. longissimus dorsi muscle was studied in Brahman steers consuming a low quality hay. The initial mean liveweight (LW) of the steers was 197 kg. Mean LW gain over 50 days was 20 kg for all steers, but voluntary feed intake (5.63 kg/day) was reduced by 1.02 kg/day with safflower oil. Supplementation increased the plasma concentrations of unsaturated fatty acids, indicating a less complete hydrogenation of dietary safflower oil than of hay by rumen microorganisms. Safflower oil altered the fatty acid (FA) profiles of platelet and muscle phospholipids. with increases in the proportions of monounsaturated acids (MFA) and polyunsaturated fatty acids (PFA) and associated decreases in the proportions of saturated fatty acids (SFA). The neutral lipids of adipose tissue consisted of 60% SFA and 38% MFA in steers fed hay alone, compared with 53% SFA and 45% MFA in supplemented steers. Safflower oil had no effect on the total fat content of muscle; the concentration of PFA was not significantly altered, but SFA decreased 17% in parallel with a 23% increase in MFA. The results support proposals that dietary oil supplements may be used to reduce forage intake during dry season or drought, to conserve body protein and to modify the FA composition of meat phospholipids which may, in turn, influence meat quality of ruminants consuming low quality roughage diets.

Keto Fatty Acids Derived from Castor Oil. III. Acid Derivatives1

1958 ◽  
Vol 80 (21) ◽  
pp. 5714-5717 ◽  
Author(s):  
Edgar Schipper ◽  
Joseph Nichols
Keyword(s):  
Fatty Acids ◽  
Castor Oil
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