Oxidation stability of biodiesel derived from free fatty acids associated with kinetics of antioxidants

2011 ◽  
Vol 92 (7) ◽  
pp. 1387-1393 ◽  
Author(s):  
Yi-Hung Chen ◽  
Yu-Min Luo
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Oxidation Stability ◽  
Kinetics Of

KINETICS OF ESTERIFICATION OF OLEIC AND LINOLEIC FREE FATTY ACIDS

2020 ◽  
Vol 39 (1) ◽  
pp. 23-33
Author(s):  
Samah A. Hawash ◽  
Ebrahiem Esmail Ebrahiem ◽  
Hassan A. Farag
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Kinetics Of

Rancidity of Used Cooking Oil and Heavy Metal Analyses on Selected Street-Vended Foods

10.17158/224 ◽  
2012 ◽  
Vol 18 (1) ◽  
Author(s):  
Annabelle A. Callano
Keyword(s):  
Fatty Acids ◽  
Heavy Metal ◽  
Free Fatty Acids ◽  
Peroxide Value ◽  
Heavy Metal Contamination ◽  
Prolonged Exposure ◽  
Oxidation Stability ◽  
Food Poisoning ◽  
Cooking Oil ◽  
Used Cooking Oil

Intake of unsafe food causes many acute and life-long diseases, ranging from diarrheal diseases to various forms of cancer. Thus, it is imperative that safety issues on food adulteration and heavy metals contamination be evaluated for the benefits of the consuming public. Consequently, oxidation stability and heavy metal analyses on used cooking oil and four selected street-vended foods from three different sampling sites were done. Analyses of test parameters were performed using standard methods and procedures. Overall results of the analyses with three trials each showed that peroxide value, free fatty acids, cadmium (Cd) and lead (Pb) did not conform to the allowable levels set for the food products. The peroxide value was three to eight times higher than the limit of 10meq/kg since it ranges from 33.33 - 86.67meq/kg whereas Cd and Pb showed concentration of 0.60 – 1.57 ppm and 30.00-35.00 ppm, respectively. On the other hand, percent free fatty acids (%FFA) ranges from 0.72 to 0.93% on used cooking oil while selected street-vended foods FFA status were recorded at the range of 1.49 to 2.92%. The results clearly indicate oxidative rancidity due to repetitive use of cooking oil and heavy metal contamination on the test samples which were found to be significantly higher than the maximum limits. This could mean that prolonged exposure to these street vended foods is detrimental to human health. The high level of POV, Cd and Pb of these products can significantly pose food poisoning, foodborne disease, neurotoxicity and even cancer.

Kinetics of Medium-Chain Triglycerides and Free Fatty Acids in Healthy Volunteers and Surgically Stressed Patients

1994 ◽  
Vol 18 (2) ◽  
pp. 134-140 ◽  
Author(s):  
Andrea De Gaetano ◽  
Marco Castagneto ◽  
Geltrude Mingrone ◽  
Giuliano Gangeri ◽  
Gabriele Sganga ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Healthy Volunteers ◽  
Medium Chain Triglycerides ◽  
Medium Chain ◽  
Kinetics Of

scholarly journals The Kinetics of the Esterification of Free Fatty Acids in Jatropha Oil using Glycerol based Solid Acid Catalyst

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
K. N. Prasanna Rani ◽  
T. S. V. R. Neeharika ◽  
G. Harsha Vardhan ◽  
T. Prathap Kumar ◽  
B. L. A. Prabhavathi Devi
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Jatropha Oil ◽  
Kinetics Of

Kinetics of Free Fatty Acids in Hypertriglyceridemia.

1993 ◽  
Vol 683 (1 Dietary Lipid) ◽  
pp. 373-375 ◽  
Author(s):  
PAVEL ŠTOLBA ◽  
MILAN KVAPIL ◽  
DAN WICHTERLE ◽  
PAVEL DVOŘÁK
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Kinetics Of

Esterification kinetics of free fatty acids with supercritical methanol for biodiesel production

2010 ◽  
Vol 51 (5) ◽  
pp. 1055-1059 ◽  
Author(s):  
R. Alenezi ◽  
G.A. Leeke ◽  
J.M. Winterbottom ◽  
R.C.D. Santos ◽  
A.R. Khan
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Biodiesel Production ◽  
Supercritical Methanol ◽  
Kinetics Of

scholarly journals Kinetics of Non-Catalytic Esterification of Free Fatty Acids Present in Jatropha Oil

2016 ◽  
Vol 65 (5) ◽  
pp. 441-445 ◽  
Author(s):  
Karna Narayana Prasanna Rani ◽  
Tulasi Sri Venkata Ramana Neeharika ◽  
Thella Prathap Kumar ◽  
Bankupalli Satyavathi ◽  
Chintha Sailu
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Jatropha Oil ◽  
Kinetics Of
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