The deposition of polyunsaturated fatty acids in the rat fed partially hydrogenated vegetable oil

1970 ◽  
Vol 47 (12) ◽  
pp. 487-489 ◽  
Author(s):  
Joyce L. Beare-Rogers
2012 ◽  
Vol 25 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Gabriela Salim Ferreira de Castro ◽  
Bianca Bellizzi de Almeida ◽  
Daphne Santoro Leonardi ◽  
Paula Payão Ovídio ◽  
Alceu Afonso Jordão

OBJECTIVE: The aim of the present study was to investigate the lipid profiles of the hepatic and adipose tissues of Wistar rats treated for 21 days with a diet high in saturated fat (high saturated fat, n=6) or high in hydrogenated fat, that is, having 50% partially hydrogenated vegetable oil in its composition (high hydrogenated fat, n=6), and compare them to those of a control group (control group, n=6). METHODS: Adipose tissue and total hepatic fat were higher in the saturated fat group than in the hydrogenated fat group. Hepatic lipid peroxidation was greatest in the saturated fat group, with consequent lower hepatic vitamin E and A levels. In contrast, serum vitamin A was highest in the saturated fat group. Analysis of hepatic lipid fractions found more cholesterol and less high density lipoprotein-cholesterol in the hydrogenated fat group. The hydrogenated fat group had the highest levels of triacylglycerols, followed by the saturated fat group. RESULTS: Significant amounts of trans fatty acids were detected in the hepatic and adipose tissues of the hydrogenated fat group. Among the identified fatty acids, 18:1n9 had a higher positive association with hepatic cholesterol and triacylglycerols, and a higher negative association with high density lipoprotein-cholesterol. Partially hydrogenated vegetable oil promotes greater accumulation of cholesterol and triacylglycerols in the liver than saturated fats. CONCLUSION: Trans fatty acids were incorporated into hepatocytes and adipocytes in a highly efficient manner.


1982 ◽  
Vol 79 (4) ◽  
pp. 953-957 ◽  
Author(s):  
E. G. Hill ◽  
S. B. Johnson ◽  
L. D. Lawson ◽  
M. M. Mahfouz ◽  
R. T. Holman

2008 ◽  
Vol 10 (12) ◽  
pp. 1331 ◽  
Author(s):  
Matthew B. Boucher ◽  
Steven A. Unker ◽  
Kyle R. Hawley ◽  
Benjamin A. Wilhite ◽  
James D. Stuart ◽  
...  

Author(s):  
Danawati Hari Prajitno ◽  
Achmad Roesyadi ◽  
Muhammad Al-Muttaqii ◽  
Lenny Marlinda

Biofuel has been considered as one of the environmentally friendly energy sources to substitute fossil fuel derived from non-edible vegetable oil. This research aims to investigate the effect of the non-edible vegetable oil composition on a specific hydrocarbons distribution contained in biofuel and the aromatics formation through hydrocracking reaction with the Co-Ni/HZSM-5 catalyst. The formation of aromatics from non-edible vegetable oils, such as: Cerbera manghas, rubber seed, and sunan candlenut oils, containing saturated, mono- and polyunsaturated fatty acids is presented. The hydrocracking reaction was carried out in a pressure batch reactor, a reaction temperature of 350 oC for 2 h, reactor pressure of 15 bar after flowing H2 for 1 hour, and a catalyst/oil ratio of 1 g/200 mL. Liquid hydrocarbon product was analyzed by gas chromatography-mass spectrometry. Based on the GC-MS analysis, hydrocracking on three different oils indicated that polyunsaturated fatty acids were required to produce relatively high aromatics content. The sunan candlenut oil can be converted to gasoil range hydrocarbons containing a small amount of aromatic through hydrocracking reaction. Meanwhile, the aromatics in liquid product from hydrocracking of Cerbera manghas and rubber seed oils were not found. Copyright © 2017 BCREC Group. All rights reserved.Received: 21st November 2016; Revised: 9th May 2017; Accepted: 20th May 2017; Available online: 27th October 2017; Published regularly: December 2017How to Cite: Prajitno, D.H., Roesyadi, A., Al-Muttaqii, M., Marlinda, L. (2017). Hydrocracking of Non-edible Vegetable Oils with Co-Ni/HZSM-5 Catalyst to Gasoil Containing Aromatics. Bulletin of Chemical Reaction Engineering & Catalysis, 12(3):318-328 (doi:10.9767/bcrec.12.3.799.318-328) 


Lipids ◽  
2015 ◽  
Vol 50 (4) ◽  
pp. 339-347 ◽  
Author(s):  
Cintia B. Dias ◽  
Melinda Phang ◽  
Lisa G. Wood ◽  
Manohar L. Garg

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