The Kinetics of Thiyl Radical-Induced Reactions of Monounsaturated Fatty Acid Esters

2002 ◽  
Vol 124 (43) ◽  
pp. 12816-12823 ◽  
Author(s):  
Chryssostomos Chatgilialoglu ◽  
Alessio Altieri ◽  
Hanns Fischer
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Esters ◽  
Monounsaturated Fatty Acid ◽  
Thiyl Radical ◽  
Kinetics Of ◽  
Acid Esters

Study of the biodegradation of the components of the biodiesel using the Pseudomonas bacteria

2020 ◽  
Keyword(s):  
Fatty Acid ◽  
Diesel Fuel ◽  
Fatty Acid Esters ◽  
Biodegradation Kinetics ◽  
Biological Product ◽  
Substrate Consumption ◽  
Kinetics Of ◽  
Acid Esters ◽  
Over Time

The kinetic dependencies of the utilization of fatty acid esters and diesel fuel have been determined in order to develop a biological product using the bacteria Pseudomonas for biodegradation of biodiesel. The kinetics of substrate consumption over time was studied, and the effect of the concentration of each of the substrates and their mixtures on the rate of utilization of biodiesel was considered. Keywords biodiesel; biodegradation; kinetics; substrate consumption; fatty acid esters; diesel fuel

Hydrogenation of Fatty Acid Esters. II. Kinetics of Hydrogenation of Methyl (Z)- and (E)-9-Octadecenoate Catalyzed by a Ziegler Nickel Catalyst

1992 ◽  
Vol 57 (12) ◽  
pp. 2583-2592 ◽  
Author(s):  
Jana Krupičková ◽  
Jaroslav Včelák ◽  
Jiří Hetflejš
Keyword(s):  
Fatty Acid ◽  
Nickel Catalyst ◽  
Fractional Order ◽  
Initial Rate ◽  
Zero Order ◽  
Model Catalyst ◽  
Fatty Acid Esters ◽  
First Order ◽  
Kinetics Of ◽  
Acid Esters

Kinetics of the title reactions has been studied, using nickel(II) 2,4-pentanedionate/triethylaluminium system as a model catalyst. Initial rate measurements showed that in both cases the hydrogenation is first order in hydrogen, zero order in the octadecanoate and a fractional order (close to one) in the catalyst. Both hydrogenations have similar activation energies (30.2 ± 2.3 kJ mol-1 and 28.9 ± 2.6 kJ mol-1 for the (Z)- and (E)-9-octadecenoate, respectively). Based on these data and the results of competition experiments, two models have been proposed to describe isomerization of the octadecenoates (either direct or via an intermediate).

Development of the determination methods of fatty acid esters of chloropropanediols in fat-rich foods

2014 ◽  
Vol 31 (2) ◽  
pp. 95-101
Author(s):  
Xiaobo YAN ◽  
Shaoming WU ◽  
Nan LI ◽  
Huadong LV ◽  
Wusheng FU
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Esters ◽  
Determination Methods ◽  
Acid Esters

Mesomorphic Behaviour of Saturated and Monounsaturated C18 and C22 Fatty Acid Esters of Cholesterol

1994 ◽  
Vol 59 (4) ◽  
pp. 833-840
Author(s):  
Slavomír Pirkl
Keyword(s):  
Phase Transitions ◽  
Fatty Acid ◽  
Fatty Acid Esters ◽  
Aliphatic Esters ◽  
Acid Esters

The phase transitions and effective optical rotary power of saturated and monounsaturated aliphatic esters of cholesterol with 18 and 22 carbon atoms in the chain have been described. The effect of cis/trans isomerism on these properties is discussed.

The occurrence of long chain polyprenols in leaves of plants of Rosaceae family and their isolation by time-extended liquid chromatography

1992 ◽  
Vol 70 (6) ◽  
pp. 448-454 ◽  
Author(s):  
Ewa Świeżewska ◽  
T. Chojnacki ◽  
W. J. Jankowski ◽  
K. Singh ◽  
J. Olsson
Keyword(s):  
Liquid Chromatography ◽  
Fatty Acid ◽  
Large Scale ◽  
Fatty Acid Esters ◽  
Large Scale Preparation ◽  
Scale Preparation ◽  
Wet Weight ◽  
Rosaceae Family ◽  
Acid Esters ◽  
Long Chain

The long chain polyprenols composed of 30 and more isoprene units from leaves of plants belonging to the genera Potentilla and Rosa have been described. They occur in the form of fatty acid esters. The composition of polyprenol mixture was species dependent and its content reached ca. 0.5% wet weight. Large scale preparation of individual polyprenols from a natural polyprenol mixture was performed using time-extended liquid chromatography on the hydrophobic gel Lipidex-5000.Key words: long chain polyprenols, Rosaceae.

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