Variables affecting homogeneous acid catalyst recoverability and reuse after esterification of concentrated omega-9 polyunsaturated fatty acids in vegetable oil triglycerides

2008 ◽  
Vol 10 (12) ◽  
pp. 1331 ◽  
Author(s):  
Matthew B. Boucher ◽  
Steven A. Unker ◽  
Kyle R. Hawley ◽  
Benjamin A. Wilhite ◽  
James D. Stuart ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Vegetable Oil ◽  
Acid Catalyst ◽  
Homogeneous Acid

scholarly journals Hydrocracking of Non-edible Vegetable Oils with Co-Ni/HZSM-5 Catalyst to Gasoil Containing Aromatics

2017 ◽  
Vol 12 (3) ◽  
pp. 318 ◽  
Author(s):  
Danawati Hari Prajitno ◽  
Achmad Roesyadi ◽  
Muhammad Al-Muttaqii ◽  
Lenny Marlinda
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Batch Reactor ◽  
Liquid Product ◽  
Gas Chromatography Mass Spectrometry ◽  
Rubber Seed ◽  
Cerbera Manghas ◽  
Edible Vegetable Oil

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) 

Synthesis of biodiesel from waste vegetable oil with large amounts of free fatty acids using a carbon-based solid acid catalyst

2010 ◽  
Vol 87 (8) ◽  
pp. 2589-2596 ◽  
Author(s):  
Qing Shu ◽  
Jixian Gao ◽  
Zeeshan Nawaz ◽  
Yuhui Liao ◽  
Dezheng Wang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Vegetable Oil ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Waste Vegetable Oil ◽  
Carbon Based

Antiatherogenic effect of vegetable oil supplemented with ?-3 polyunsaturated fatty acids

1993 ◽  
Vol 116 (4) ◽  
pp. 1268-1270 ◽  
Author(s):  
M. M. Kochetova ◽  
I. V. Eremina ◽  
Zh. I. Kluchnikova ◽  
E. F. Solov'eva ◽  
N. N. Butusova ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Vegetable Oil ◽  
Antiatherogenic Effect

A randomized, double-blind, placebo-controlled study of polyunsaturated fatty acids efficacy in adolescents with anorexia nervosa

2020 ◽  
Vol 36 (2) ◽  
pp. 95-106
Author(s):  
Agnieszka M. Piróg-Balcerzak ◽  
Anna K. Bażyńska ◽  
Katarzyna Biernacka ◽  
Joanna Brągoszewska ◽  
Lidia Popek ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Anorexia Nervosa ◽  
Polyunsaturated Fatty Acids ◽  
Small Sample Size ◽  
Small Sample ◽  
Female Adolescent ◽  
Eating Attitude ◽  
Controlled Study ◽  
Omega 3 ◽  
Eat 26

Objective. Omega–3 polyunsaturated fatty acids (PUFAs) were tested in adolescent depression and in several neurodevelopmental disorders with partial success. Anorexia nervosa (AN) is characterised by deficiencies in fatty food intake and frequent comorbidity, including depressive and cognitive symptoms. Thus supplementation with PUFAs may be beneficial in this group of patients. The aim of the study was to assess whether PUFAs as an add-on treatment is associated with better improvement of body mass index (BMI) and psychopathological symptoms than placebo in patients with AN. Method. 61 female adolescent inpatients with AN were randomly allocated to omega–3 PUFAs supplementation or placebo for 10 weeks. Patients also participated in the behavioural programme and eclectic psychotherapy (treatment as usual, TAU). At baseline and follow-up visits, patients’ BMI and psychopathology were assessed with Clinical Global Impression Scale (CGI), Patient Global Impression Scale (PGI), and Eating Attitude Test (EAT-26). Results. After 10 weeks, both groups showed improvement in all parameters. Improvement in CGI scores was observed greater in placebo vs. PUFA-s group (p = 0.015) while other differences were not statistically significant. Omega–3 PUFAs supplementation appears not to be effective as an add-on treatment in inpatient adolescent girls with anorexia nervosa. Conclusions. The results should be analysed with caution due to small sample size and heterogeneity in TAU. As the TAU turned out to be highly effective, additional therapeutic effect of PUFA might not be visible. Nevertheless, that does not explain the tendency for better improvement in the placebo group.

Polyunsaturated fatty acids and phytoestrogens modulate osteoclastogenesis and bone resorption in raw 264.7 macrophages

2013 ◽  
Author(s):  
Natalie Shepherd ◽  
Jager Cassandre De ◽  
Abe Kasonga ◽  
Sumari Marais ◽  
Yuko Tousen ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Bone Resorption ◽  
Polyunsaturated Fatty Acids ◽  
Raw 264.7 ◽  
Raw 264.7 Macrophages
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