scholarly journals A study of production and characterization of Manketti (Ricinodendron rautonemii) methyl ester and its blends as a potential biodiesel feedstock

2014 ◽  
pp. 139-146 ◽  
Author(s):  
A.E. Atabani ◽  
M. Mofijur ◽  
H.H. Masjuki ◽  
Irfan A. Badruddin ◽  
W.T. Chong ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Biodiesel Feedstock

scholarly journals Alternatif Pembuatan Biodiesel Melalui Transesterifikasi Minyak Castor (Ricinus communis) Menggunakan Katalis Campuran Cangkang Telur Ayam dan Kaolin

2017 ◽  
Vol 3 (1) ◽  
pp. 1-10
Author(s):  
Soni Setiadji ◽  
Nila Tanyela B ◽  
Tety Sudiartati ◽  
Eko Prabowo ◽  
Bebeh Wahid N
Keyword(s):  
Methyl Ester ◽  
Castor Oil ◽  
Functional Group ◽  
Ricinus Communis ◽  
Xrd Analysis ◽  
Aluminum Silicate ◽  
Impregnation Method ◽  
Ftir Analysis ◽  
Biodiesel Feedstock

Biodiesel was produced by transesterification of castor oil (Ricinus communis) using a catalyst of CaO and kaolin (CaO / kaolin) had been performed. CaO was obtained from the calcination of eggshell. Castor oil is selected as biodiesel feedstock because it belongs to non-food oil and easy to cultivate. In general, the research method aims to comprise the CaO / Kaolin catalysts with a ratio of 15 mmol CaO per 1 gram of kaolin activated using impregnation method and biodiesel produced through transesterification of castor oil using the catalyst at 65 ºC for 8 hours with ratio of castor oil: methanol: catalyst (1: 15: 5% w / w). The reaction is carried out on the reflux system. The XRD analysis show the presence of silica and potassium aluminum silicate hydroxide in the catalyst. The EDS results show the catalyst-forming components CaO and silica. The FTIR analysis results show the absorption peak in the functional group forming the methyl ester compound. Based on the characterization of GC-MS, the largest methyl ester components contained in biodiesel are methyl risinoleate, methyl elaidat, methyl stearate, methyl linoleate, and methyl palmitate. The overall conversion of castor oil to methyl ester using CaO / kaolin catalyst is 97.36%. The largest component in castor oil is risinoleic acid, has been successfully converted to methyl risinoleate by 74.75%.DOI: http://dx.doi.org/10.15408/jkv.v0i0.4778

Crystallization, spectral, and thermal characterization of l-histidine methyl ester dihydrochloride (LHMED)

2011 ◽  
Vol 107 (3) ◽  
pp. 1231-1235 ◽  
Author(s):  
C. Alosious Gonsago ◽  
Helen Merina Albert ◽  
P. Malliga ◽  
A. Joseph Arul Pragasam
Keyword(s):  
Methyl Ester ◽  
Thermal Characterization

Characterization of Chlorococcum pamirum as a potential biodiesel feedstock

2014 ◽  
Vol 162 ◽  
pp. 115-122 ◽  
Author(s):  
Pingzhong Feng ◽  
Zhongyang Deng ◽  
Zhengyu Hu ◽  
Zhongming Wang ◽  
Lu Fan
Keyword(s):  
Biodiesel Feedstock

Effects of l-leucine methyl ester (Leu-OMe) on mouse peritoneal mast cells: Characterization of histamine release versus cytotoxicity

1992 ◽  
Vol 139 (2) ◽  
pp. 281-291 ◽  
Author(s):  
Carole Oskeritzian ◽  
Annie Prouvost-Danon ◽  
Bernard David
Keyword(s):  
Mast Cells ◽  
Methyl Ester ◽  
Histamine Release ◽  
Peritoneal Mast Cells

scholarly journals Characterization of fluoroquinolone-induced Achilles tendon toxicity in rats: comparison of toxicities of 10 fluoroquinolones and effects of anti-inflammatory compounds.

1997 ◽  
Vol 41 (11) ◽  
pp. 2389-2393 ◽  
Author(s):  
Y Kashida ◽  
M Kato
Keyword(s):  
Nitric Oxide ◽  
Body Weight ◽  
Methyl Ester ◽  
Achilles Tendon ◽  
Antibacterial Agents ◽  
Antimicrobial Agents ◽  
High Dose ◽  
Juvenile Rats ◽  
Anti Inflammatory

Fluoroquinolone antibacterial agents have been reported to induce tendon lesions in juvenile rats. In the present study, we characterized fluoroquinolone-induced Achilles tendon lesions by comparing the effects of 10 fluoroquinolones and examining the potential of one of these antimicrobial agents, pefloxacin, to induce tendon lesions when coadministered with one of nine anti-inflammatory compounds. Among the 10 fluoroquinolones tested, fleroxacin and pefloxacin were the most toxic, inducing lesions at a dose of 100 mg/kg of body weight or more, while lomefloxacin, levofloxacin, and ofloxacin or sparfloxacin and enoxacin induced lesions at 300 mg/kg or more and 900 mg/kg, respectively. In contrast, norfloxacin, ciprofloxacin, and tosufloxacin had no effect even at the high dose of 900 mg/kg. The severity of the Achilles tendon lesions appeared to correlate with the structure of the substituent at the seventh position. Furthermore, pefloxacin-induced tendon lesions were inhibited by coadministration with dexamethasone and N-nitro-L-arginine methyl ester. Phenidone (1-phenyl-3-pyrazolidinone) and 2-(12-hydroxydodeca-5,10-diynyl)3,5,6-trimethyl-1,4-benzoqui none (AA861) also decreased the incidence of tendon lesions. In contrast, catalase, dimethyl sulfoxide, indomethacin, pyrilamine, and cimetidine did not modify these tendon lesions. These results suggest that nitric oxide and 5-lipoxigenase products partly mediate fluoroquinolone-induced tendon lesions.

Antitumor Agents, 118. The Isolation and Characterization of Bruceanic Acid A, its Methyl Ester, and the New Bruceanic Acids B, C, and D, from Brucea antidysenterica

1990 ◽  
Vol 53 (6) ◽  
pp. 1526-1532 ◽  
Author(s):  
Tsuyosbi Toyota ◽  
Naribiko Fukamiya ◽  
Masayoshi Okano ◽  
Kiyoshi Tagahara ◽  
Jer-Jang Chang ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Antitumor Agents ◽  
Isolation And Characterization

Extraction and Characterization of Oil from the Seeds of Jatropha Curcas Using Supercritical CO2 and Soxhlet Extraction Process

2015 ◽  
Vol 787 ◽  
pp. 809-814 ◽  
Author(s):  
Prateek Rastogi ◽  
Ranjitha Jambulingam ◽  
S. Vijayalakshmi ◽  
Michael S. Donatus
Keyword(s):  
Methyl Ester ◽  
Gum Arabic ◽  
Soxhlet Extraction ◽  
Extraction Process ◽  
Esterification Reaction ◽  
Jatropha Oil ◽  
Bio Oil ◽  
Percentage Yield ◽  
Novel Catalyst

The ain of the present paper describes about the bio-oil extraction using soxhlet and supercritical CO2 process. The percentage yield 82.34 % was more in the case of supercritical CO2 extraction. The extracted bio-oil was converted into biodiesel using enzymatic trans-esterification reaction. A novel catalyst Gum arabic coated magnetic Fe3O4 nanoparticles are used in the enzymatic trans-esterification reaction. The extracted bio-oil and produced bio-diesel samples were characterised using GC-MS spectral data. Similarly, physical properties such as density, flash point, kinematic viscosity, cloud point and pour point were found out for Jatropha oil and Jatropha methyl ester. The values obtained from the Jatropha methyl ester is closely matched with the values of conventional diesel and can be used in the existing diesel engine without any modification.

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