Parametric study of reactive extraction of castor seed (Ricinus communis L.) for methyl ester production and its potential use as bio lubricant

2013 ◽  
Vol 43 ◽  
pp. 283-290 ◽  
Author(s):  
Chandu S. Madankar ◽  
Subhalaxmi Pradhan ◽  
S.N. Naik
Keyword(s):  
Methyl Ester ◽  
Parametric Study ◽  
Ricinus Communis ◽  
Reactive Extraction ◽  
Castor Seed ◽  
Ricinus Communis L ◽  
Potential Use

scholarly journals Produksi Metil 12-Hidroksistearat via Proses Hidrogenasi Ester Minyak Jarak

2020 ◽  
Vol 18 (1) ◽  
pp. 7
Author(s):  
Indra G. Pasaribu ◽  
Arry K. Rizky ◽  
Mario C. Gultom ◽  
Retno G. Dewi ◽  
Tirto P. Prakoso ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Ricinoleic Acid ◽  
Iodine Value ◽  
Castor Oil ◽  
Ricinus Communis ◽  
Acid Methyl Ester ◽  
Hydrogenation Process ◽  
Operating Pressure ◽  
Acid Methyl ◽  
Ricinus Communis L

bstrak. Minyak jarak kaliki (Ricinus communis L.) merupakan salah satu bahan baku terbarukan yang banyak diaplikasikan di berbagai industri kimia. Salah satu dari turunan minyak jarak kaliki yaitu metil 12-hidroksistearat merupakan metil ester yang memiliki manfaat dalam berbagai jenis industri, khususnya industri pelumas. Makalah ini membahas produksi metil 12-hidroksistearat via hidrogenasi ester minyak jarak dalam reaktor mini-pilot. Makalah ini membahas kondisi optimum proses hidrogenasi dari metil ester risinoleat dengan melakukan variasi terhadap tekanan dan temperatur operasi. Tekanan dan temperatur operasi proses hidrogenasi divariasikan pada rentang 2-4 bar dan 150-210℃. Diperoleh produk hidrogenasi metil ester risinoleat dengan konsentrasi massa metil 12-hidroksistearat mencapai 61,28% dan angka iodin 23,84. Peningkatan temperatur dan tekanan operasi meningkatkan konversi metil 12-hidroksistearat dan menurunkan angka iodin. Pada rentang variasi kondisi, kondisi operasi optimum untuk proses ini adalah temperatur 210℃ dan tekanan 4 bar. Penambahan waktu reaksi hidrogenasi selama 3 jam menghasilkan penurunan angka iodin hingga mencapai 9,82 dan bentuk fisik seperti mentega. Kata kunci: angka iodin, hidrogenasi, metil 12-hidroksistearat, metil ester risinoleat, minyak jarak kaliki. Abstract. Production of Methyl 12-Hydroxystearate through the Hydrogenation Process of Castor Oil Esters. Castor oil (Ricinus communis L.) is one of renewable raw materials widely applied in various chemical industries. One of the castor oil derivatives is methyl 12-hydroxistearate, a methyl ester fatty acid which has been applied in various industries especially lubricants industry. This paper discusses the methyl ester production of methyl 12-hydroxystearate from castor oil via hydrogenation of ester of castor oil in a mini-pilot reactor. The purpose of this study is to determine the optimum operating condition of the hydrogenation process of the ricinoleic acid methyl ester by varying operating pressure and temperature. The operating pressure and temperature of the hydrogenation process were varied in the range of 2-4 bar and 150-210℃. The experimental results show that the hydrogenation process of ricinoleic acid methyl ester produces methyl-12-hydroxistearate with concentration up to 61.28%-wt and Iodine Value of 23.84. Higher operating temperature and pressure increase the conversion of methyl 12- hydroxistearate and reduce the iodine value. Further, the optimum operation condition for this process is at 210℃ and 4 bar. Increasing reaction time for about 3 hours results in a significant reduction of iodine value up to 9.82. Keywords: castor oil, hydrogenation, iodine number, methyl 12-hidroxystearate, methyl ester ricinoleic. Graphical Abstract

scholarly journals Phytochemical Constituents and Toxicity of the Ethanol Extract of Ricinus communis (L.) in Drosophila melanogaster

2021 ◽  
pp. 12-21
Author(s):  
Tran Thi Tu Ai ◽  
Huynh Hong Phien ◽  
Tran Thanh Men
Keyword(s):  
Drosophila Melanogaster ◽  
Ricinus Communis ◽  
Ethanol Extract ◽  
Fruit Fly ◽  
Ricinus Communis L ◽  
Movement Ability ◽  
Phytochemical Constituents ◽  
Ld50 Value ◽  
Harmful Effects ◽  
Potential Use

The study aimed to evaluate the toxic ability of the ethanol extract of Ricinus communis (L.) in Drosophila melanogaster fruit fly model. The toxicity was determined through different criteria, including the ability to cause harmful effects on second instar larvae, reproduction, growth and development, and the movement ability of fruit flies. The results showed that the ethanol extract of Ricinus communis expressed its high toxicity against 2nd instar larvae of Drosophila melanogaste with the LD50 value of 64.63 mg/mL. In addition, Ricinus communis extract reduced the growth rate, reproduction and decreased the movement ability of Drosophila melanogaster. The total flavonoid and polyphenol content of the ethanol extract of Ricinus communis were 338.26 mgQE/g extract and 160.43 mgGAE/g extract, respectively. These findings contribute to confirming the toxic properties of ethanol extract of Ricinus communis and their potential use in preventing and controlling pest.

scholarly journals A Study of the Lipid Structure of Castor Seed Oil (Ricinus communis L), Biodiesel and Its Characterization

2020 ◽  
pp. 1-11 ◽  
Author(s):  
K. Bello ◽  
F. Airen ◽  
A. O. Akinola ◽  
E. I. Bello
Keyword(s):  
Seed Oil ◽  
Ricinus Communis ◽  
Chemical Properties ◽  
Biodiesel Production ◽  
Castor Seed ◽  
Hydroxyl Group ◽  
University Of Technology ◽  
Ricinus Communis L ◽  
Physico Chemical ◽  
Ondo State

The paper characterized and transesterified castor seed oil. The resulting product was tested as feedstock for biodiesel production. It was carried out at the Department of Mechanical Engineering, the Federal University of Technology, Akure, Ondo State, Nigeria, over a period of eight months. The oil was extracted in a soxhlet extractor with n-hexane as the solvent. The oil obtained was filtered and then characterized. Transesterification was carried out using a laboratory scale biodiesel processor. The fuel and physico-chemical properties of the oil and its biodiesel were determined following ASTM, EN and AOCS methods. The results revealed that all the properties of the biodiesel are within the ASTM limits for biodiesel except the kinematic viscosity. The oil contains 89% ricinoleic acid and has high solubility in methanol due to the hydroxyl group and requires minimum amount of catalyst to give maximum biodiesel yield. The heating value obtained for the oil and its biodiesel were 32 MJ/kg and 38 MJ/kg. The castor seed oil investigated has oil content of 34%, and the properties characterized are all within the limits for biodiesel.  Castor oil has excellent solubility in methanol and hence theoretically an ideal feedstock for biodiesel production.

scholarly journals Growth Performance of Heteroclarias Juveniles Fed Graded Levels of Autoclaved Castor Seed (Ricinus communis L.) Cake Based Diets

2020 ◽  
Vol 1 (2) ◽  
pp. 1-12
Author(s):  
Agboola E. O ◽  
Adebayo I. A ◽  
Babalola B. T
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Ricinus Communis ◽  
Nutrient Utilization ◽  
Fish Growth ◽  
Castor Seed ◽  
Feed Conversion ◽  
Seed Cake ◽  
Ricinus Communis L ◽  
Castor Seeds

An 84 day feeding trial was conducted on the juveniles (42.51±0.09g) of hybrid catfish, Heteroclarias, in order to evaluate the nutritional potential of 30 minutes autoclaved castor seed cake isonitrogenous (40% crude protein) and isocaloric (3212Kcal/Kg) diets replacing soybean meal at 0, 12.5, 25, 37.5 and 50%, the diets being designated D1, D2, D3, D4 and D5 respectively. Prior to this, the castor seeds (Ricinus communis L.), ZiboCastor No. 3 variety, collected from Ado-Ekiti metropolis, Nigeria were subjected to 0, 20, 30 and 40 minutes autoclaved at 121oC, dehauled, grounded, oil extracted to form cake, then the proximate and antinutrients analysis were carried out. The preliminary tests on the seeds revealed 30 minutes level of autoclaved seeds was the best. The growth performance result showed that there were significant differences (p<0.05) in the mean weight gain (MWG), specific growth rate (SGR), feed conversion ratio (FCR), protein efficiency ratio (PER) and apparent net protein utilization (NPU) among the various diet levels with the progressive decline in the values of each parameter (except FCR that showed progressive increment) along the trend of increment of castor seed cake inclusion (D1, 0%; D2, 12.5%; D3, 25%; D4, 37.5% and D5, 50%). The survival rate followed the same trend of declination with the highest percentage recorded for D1 (93.33±6.67%), followed by D2 (83.33±3.33%), D3 (76.57±3.33%), D4 (66.67±3.33%) and D5 (60.00±5.77%) respectively. Hence the best growth performance and nutrient utilization was shown in D1 (control) followed by D2. It is therefore recommended that autoclaved castor seed cake at 121oC be included at not more than 12.5% inclusion level to reduce cost of feed without necessarily compromising fish growth rate.

14C incorporation into sugars and changes in starch during feminization of castor (Ricinus communis), as influenced by kinetin and morphactin

1980 ◽  
Vol 58 (3) ◽  
pp. 388-391 ◽  
Author(s):  
N. Raja Kumar ◽  
P. Gopala Rao
Keyword(s):  
Methyl Ester ◽  
Ricinus Communis ◽  
Starch Hydrolysis ◽  
Foliar Sprays ◽  
Ricinus Communis L

Foliar sprays of kinetin (6-furfurylaminopurine) and morphactin EMD 7301 W (methyl ester of chlorfluerenol) were applied at a concentration of 20 ppm to 6- and 8-week-old plants of castor (Ricinus communis L.). Kinetin suppressed male tendency while morphactin did not affect it. Kinetin elicited an increase in femaleness and a decrease in maleness, consequently causing reduction in the total number of flowers, compared with the number of flowers in the control plants. Morphactin simulated kinetin in not only increasing the female tendency but also in increasing the 14C incorporation into sugars. Increased femaleness did not appear to involve starch hydrolysis however, it was correlated with a higher level of sucrose in the leaves.

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