Transesterification of Kapok Seed Oil (Ceiba pentandra) Using Heterogeneous Catalyst Bimetallic Oxide of Zinc and Copper Supported by γ-Alumina

2020 ◽  
Vol 988 ◽  
pp. 87-94
Author(s):  
Nyoman Puspa Asri ◽  
W.D. Prasetiyo ◽  
A. Kafidhu ◽  
A. Atiqoh ◽  
E.A. Puspitasari ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Zinc Oxide ◽  
Fatty Acid ◽  
Seed Oil ◽  
Acid Methyl Ester ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ceiba Pentandra ◽  
Activity Test ◽  
Acid Methyl

Biodiesel was produced from Kapok seed (Ceiba pentandra) oil (KSO) using heterogeneous bimetallic oxide of copper and zinc supported by γ-alumina. The Alumina-supported copper oxide-zinc oxide (CuO-ZnO γ /- Al2O3) further notated by ACZ was synthesized using precipitation, impregnation and gel methods. It also was characterized using the X-ray diffraction (X-RD), and Brunauwer-Emmett Teller (BET) methods. Before being transesterified, KSO was subjected to pretreatment with the aim of minimizing gum and other impurities and reducing the concentration of free fatty acids. The activity test of ACZ catalyst was done by introducing it through the transesterification process of KSO with methanol. The transesterification process was carried out in a laboratory scale three neck flask. The effect of calcinating temperature (°C), and calcinating time of catalyst (h) on the yield of fatty acid methyl ester (FAME) were studied, respectively. The results revealed that the kapok seed oil was worthy and potentially to transesterified into biodiesel using ACZ catalyst with highest FAME yield of 46.67%.

scholarly journals Produksi Biofuel Berbantuan Ultrasonik dari Minyak Kelapa Terkatalisis Ca/gamma-Al2O3 dan K/gamma-Al2O3: Suatu Studi Perbandingan

2021 ◽  
Vol 4 (1) ◽  
pp. 45-56
Author(s):  
Eko Supriadi ◽  
Rahmat Basuki ◽  
Danawati Hadi Prajitno ◽  
Mahfud Mahfud
Keyword(s):  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Surface Area ◽  
Acid Methyl Ester ◽  
X Ray Diffraction ◽  
X Ray ◽  
Acid Methyl

Penelitian ini bertujuan untuk membandingkan doping Kalium (K) dan Kalsium (Ca) pada support γ-Al2O3 dalam produksi biofuel yang berbentuk fatty acid methyl ester (FAME) melalui reaksi transesterifikasi minyak kelapa berbantuan ultrasonik. Reaksi dilakukan dalam tipe reaktor batch dengan perbandingan mol minyak kelapa:etanol = 1:9, dan variasi konsentrasi berat katalis untuk masing-masing katalis K/γ-Al2O­3 dan Ca/γ-Al2O3 terhadap minyak kelapa (0,5%; 1,0%; 1,5%; 2% dan 2,5%), waktu reaksi (30, 60, 90, 120 dan 150 detik), dan frekuensi ultrasonik (20 dan 40 KHz). Keberhasilan doping ditunjukkan pada hasil karakterisasi K/g-Al2O3 ­dan Ca/g-Al2O3 menggunakan X-Ray Diffraction (XRD) yang menghasilkan puncak 2θ karakteristik K (29,70° dan 32,65°) dan Ca (25,35°, 26,77°, dan 27,17°) pada support g-Al2O3 (37,66°, 45,82° dan 67,22°). Karakterisasi menggunakan Surface Area Analyzer (SAA) menunjukkan bahwa katalis K/g-Al2O3 memiliki luas permukaan yang lebih kecil (34,03 m2/g) dibanding Ca/g-Al2O3 (83,77 m2/g), namun diameter pori yang lebih besar (66,12 Å) dibanding Ca/g-Al2O3 (35,22 Å). Katalis K/g-Al2O3 menghasilkan yield FAME yang lebih besar (93,19%) dibanding Ca/γ-Al2O3 (29,76%) pada konsentrasi katalis 2,5%, waktu reaksi 150 detik dan frekuensi ultrasonik 40 kHz. Kualitas FAME terkatalisis K/g-Al2O3 yang dihasilkan memenuhi empat parameter uji: densitas, viskositas kinematic, titik nyala, dan titik tuang sesuai dengan standar SNI 04-7182-2006.

Fatty Acids in Tamarindus indica L. Seeds Oil and Antibacterial Activity Assay

2019 ◽  
Vol 811 ◽  
pp. 40-46 ◽  
Author(s):  
Sutrisno ◽  
Rini Retnosari ◽  
Siti Marfu'ah ◽  
Fauziatul Fajaroh
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Acid Methyl Ester ◽  
Esterification Reaction ◽  
Tamarindus Indica ◽  
Acid Methyl

The research was conducted to investigate the oil and fatty acids contained in Tamarindus indica Linn (tamarind) seeds oil. Tamarind seeds oil was isolated by extraction and fractionation. The fatty acids content in oil were identified as fatty acid methyl ester. Fatty acid methyl ester was produced from trans-esterification reaction of tamarind seed oil with methanol and boron trifluoride catalyst (MeOH/BF3). Identification of fatty acid methyl ester was carried out by gas chromatograph mass spectrometry (GC-MS). The fatty acids in the Tamarindus indica seed oil are saturated and unsaturated fatty acids. The saturated fatty acids are octanoic (12.66%), decanoic (1.68%), dodecanoic (25.18%), tetradecanoic (5.17-7.83%), hexadecanoic (9.90-16.06%), octadecanoic (3.82-4.80%), eicosanoic (0.39-1.55%), docosanoic (1.00-2.01%), and tetracosanoic (1.92-4.54%) acids. The unsaturated fatty acids are 11-octadecenoic (19.93%), 11-eicosenoic (0.76-1.03%), 9,12-octadecadienoic (21.91-38.68%), and 9-octadecenoic (17.76%) acids. The physical and antibacterial properties of the seed oil are also reported.

Total seed oil and fatty acid methyl ester contents of Cuphea accessions

2006 ◽  
Vol 24 (1) ◽  
pp. 52-59 ◽  
Author(s):  
Winthrop B. Phippen ◽  
Terry A. Isbell ◽  
Mary E. Phippen
Keyword(s):  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Seed Oil ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
Total Seed

scholarly journals Micro-focused X-ray diffraction characterization of high-quality [6,6]-phenyl-C61-butyric acid methyl ester single crystals without solvent impurities

2013 ◽  
Vol 1 (36) ◽  
pp. 5619 ◽  
Author(s):  
Giuseppe Paternò ◽  
Anna J. Warren ◽  
Jacob Spencer ◽  
Gwyndaf Evans ◽  
Victoria García Sakai ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Single Crystals ◽  
Butyric Acid ◽  
Acid Methyl Ester ◽  
X Ray Diffraction ◽  
High Quality ◽  
X Ray ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester

scholarly journals COMPOSITION AND QUANTIFICATION OF FATTY ACIDS PRODUCED BY Xylaria sp. DAP KRI-5

2021 ◽  
Vol 20 (1) ◽  
pp. 31-41
Author(s):  
Ahmad Fathoni ◽  
Muhammad Ilyas ◽  
Praptiwi Praptiwi ◽  
Andi Saptaji Kamal ◽  
Lukman Hafid ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Acid Methyl Ester ◽  
Acid Methyl

Asam lemak mempunyai nilai guna komersial sebagai suplemen makanan, produk farmasi dan sumber energi terbarukan. Sumber asam lemak sebagian berasal dari hewan, tumbuhan, dan jamur endofit. Penelitian ini bertujuan untuk menganalisis kandungan dan komposisi asam lemak dari jamur endofit  Xylaria sp. DAP KRI-5. Asam lemak didapatkan dari fraksi n-heksana yang dihasilkan dari partisi ekstrak etil asetat Xylaria sp. DAP KRI-5 dengan n-heksana: metanol (1:1). Turunan FAME (Fatty acid methyl ester) dari asam lemak didentifikasi dengan menggunakan GC-MS. Kandungan asam lemak dari fraksi n-heksana Xylaria sp. DAP KRI-5 adalah 26,39% (b/b) ekstrak kering. Analisis kuantitatif dilakukan menggunakan GC-MS. Komposisi dan kuantifikasi asam lemak Xylaria sp. DAP KRI-5 adalah asam linoleat (41,177%; 112,24 mg/L); asam palmitat (25,114%; 68,45 mg/L); asam oleat (14.198%; 38,70 mg/L);  asam stearat (6,575%; 17,2 mg/mL); dan asam palmitoleat 2,165%; 5,90 mg/mL). Persentase asam lemak jenuh dan tidak jenuh berturut-turut adalah 31,69 and 57,54%. Kesimpulan dari penelitian ini menunjukkan jamur endofit Xylaria sp. DAP KRI-5 berpotensi sebagai sumber asam lemak tidak jenuh. Penelitian ini merupakan laporan pertama dari asam lemak yang diproduksi oleh Xylaria sp. DAP KRI-5. 

scholarly journals Investigation of the Chemical Composition, Characterization and Determination of Energy Content for Renewable Energy Source (Biodiesel) Produced from Non-Edible Ethiopian Seeds’ Particularly Castor Seed (Ricinus communis) Using Homogeneous Catalysis

2014 ◽  
Vol 37 ◽  
pp. 63-74 ◽  
Author(s):  
Tsegay Hiwot
Keyword(s):  
Fatty Acid ◽  
Diesel Engine ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Alternative Energy ◽  
Seed Oil ◽  
Energy Content ◽  
Acid Methyl Ester ◽  
Castor Seed ◽  
Acid Methyl

Biodiesel is a clean, renewable, biodegradable, environmentally benign, energy efficient and diesel substituent fuel used in diesel engine. It provides a feasible solution to the twin crises of fossil fuel depletion and environmental pollution. It is produced from renewable sources such as vegetable oils or animal fats by trans-esterification. Although this fuel has gained worldwide recognition for many years, it is not being widely commercialized like petroleum diesel in the world, not widely produced and used especially in our country Ethiopia. Analysis of fatty acid methyl ester composition of the biodiesel produced from castor oil was done with the help of GC-MS and 8 fatty acid methyl esters were identified. Acid and base catalyzed methods were used in the synthesis of biodiesel from castor seed oil. In addition to this the variables that affect the amount of methyl ester yield were determined and an optimum of 96.7 % fatty acid methyl ester (FAME) conversion was obtained at a methanol to oil molar ratio of 6:1, 1.0 % mass NaOH, 65 °C reaction temperature and 3 hour reaction time. The energy content of the oil and biodiesel were 39 MJ/Kg and 40.7 MJ/ Kg respectively which is determined by bomb calorimeter. Other physicochemical properties of the biodiesel were determined and all these lie within the ASTM and EN biodiesel standards except kinematic viscosity. Therefore, castor seed oil methyl ester could be used as an alternative energy resource in diesel engine by blending with petroleum diesel.

scholarly journals Studying the Physicochemical Properties and Isolation of Unsaturated Fatty Acids from Edible Oils by GC-MS and Argentated Silica Gel Chromatography

2021 ◽  
pp. 346-362
Author(s):  
Salim Najmaldain Saber ◽  
Hikmat Ali Mohamad ◽  
Madzlan Aziz
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Methyl Ester ◽  
Physicochemical Properties ◽  
Olive Oil ◽  
Unsaturated Fatty Acids ◽  
Acid Methyl Ester ◽  
Acid Methyl

The core objective of this study was to investigate the physicochemical characteristics and fatty acid composition of the oils of sunflower, olive, virgin coconut and ginger oils, as well as the separation of their unsaturated fatty acids. The data indicated a significant variation in physicochemical properties (acid, saponification, ester, and iodine values) among oils. Transesterification process was carried out at a molar ratio of 1:7:0.1 of oil: methanol: KOH. Fatty acid methyl esters of oils were analyzed by infrared (IR) and gas chromatography–mass (GC-MS) spectrometry. Twelve fatty acids were identified, where the major fatty acid of  olive oil was found to be  oleic acid (89%), whereas those of sunflower and ginger oils were linoleic acid (80.9 %) and (79.3 %), respectively. Sunflower and olive oils were fractionated by 25% silver nitrate-impregnated silica gel column chromatography. By this method, linoleic acid methyl ester from sunflower and oleic acid methyl ester from olive oil were isolated with high purity percentages and yields. This study is significant for the development of food and pharmaceutical products.

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