scholarly journals Optimization of methanol crystallization for highly efficient separation of palmitic acid from palm fatty acid mixture using response surface methodology

2018 ◽  
Vol 68 (4) ◽  
pp. 224 ◽  
Author(s):  
A. A.W. Japir ◽  
J. Salimon ◽  
D. Derawi ◽  
B. H. Yahaya ◽  
M. S.M. Jamil ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Fatty Acid ◽  
Palmitic Acid ◽  
Response Surface ◽  
High Efficiency ◽  
Low Cost ◽  
Methyl Esters ◽  
Acid Mixture ◽  
Crystallization Time ◽  
Crystallization Method

The objective of the current study was to develop parameters for the separation of palmitic acid (PA) from a crude palm oil saturated fatty acid (SFAs) mixture by using the methanol crystallization method. The conditions of methanol crystallization were optimized by the response surface methodology (RSM) with the D-optimal design. The procedure of developing the solvent crystallization method was based on various different parameters. The fatty acid composition was carried out using a gas chromatography flame ionization detector (GC-FID) as fatty acid methyl esters. The highest percentage of SFAs was more than 96% with the percentage yield of 87.5% under the optimal conditions of fatty acids-to-methanol ratio of 1: 20 (w/v), the crystallization temperature of -15 °C, and the crystallization time of 24 hours, respectively. The composition of separated SFAs in the solid fraction contains 96.7% of palmitic acid (C16:0) as a dominant component and 3.3% of stearic acid (C18:0). The results showed that utilizing methanol as a crystallization solvent is recommended because of its high efficiency, low cost, stability, availability, comparative ease of recovery and its ability to form needle-like crystals which have good filtering and washing characteristics.

scholarly journals A highly efficient separation and physicochemical characteristics of saturated fatty acids from crude palm oil fatty acids mixture using methanol crystallisation method

OCL ◽  
2018 ◽  
Vol 25 (2) ◽  
pp. A203 ◽  
Author(s):  
Abd Al-Wali Japir ◽  
Jumat Salimon ◽  
Darfizzi Derawi ◽  
Badrul Hisham Yahaya ◽  
Murad Bahadi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Palm Oil ◽  
High Efficiency ◽  
Low Cost ◽  
Methyl Esters ◽  
Saturated Fatty Acids ◽  
Physicochemical Characteristics ◽  
Acid Mixture ◽  
Crude Palm Oil

The objective of the current study was to separate saturated fatty acids (SFAs) from high free fatty acid crude palm oil fatty acid mixture using the methanol crystallisation method. The development of methanol crystallisation method procedure was based on various parameters. The fatty acid composition was determined by using gas chromatography-flame ionisation detector (GC-FID) as Fatty Acid Methyl Esters. The highest percentage of SFAs was more than 89% with the percentage yield of 48.9% under the optimal conditions of the fatty acids-to-methanol ratio of 1:15 (w/v), the crystallisation temperature of −15 °C, and the crystallisation time of 24 hours, respectively. After a double crystallisation, the composition of separated SFAs contains 90% of palmitic acid (C16:0) as a major component and 5.8% of stearic acid (C18:0), respectively. Moreover, almost 4.2% of oleic acid (C18:1) was observed in the saturated solid product. Based on the results, the use of methanol as a crystallisation solvent is recommended because of its high efficiency, low cost, stability, obtainability, and comparative ease of recovery.

scholarly journals Exploration of a high-efficiency and low-cost technique for maximizing the glucoamylase production from food waste

RSC Advances ◽  
2019 ◽  
Vol 9 (40) ◽  
pp. 22980-22986 ◽  
Author(s):  
Shujuan Meng ◽  
Yao Yin ◽  
Liu Yu
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Food Waste ◽  
High Efficiency ◽  
Low Cost ◽  
Fermentation Conditions ◽  
Glucoamylase Production

Remarkably high glucoamylase production from food waste was achieved by optimizing the fermentation conditions using the response surface methodology.

RETRACTED: Production of polanga methyl esters and optimization of diesel engine parameters through response surface methodology approach

2019 ◽  
Vol 121 ◽  
pp. 94-102 ◽  
Author(s):  
Abhishek Sharma ◽  
Yashvir Singh ◽  
Gyanendra Kumar Singh ◽  
Abrham Talargie Habte ◽  
Nishant Singh
Keyword(s):  
Response Surface Methodology ◽  
Diesel Engine ◽  
Response Surface ◽  
Methyl Esters

scholarly journals Trends in Widely Used Catalysts for Fatty Acid Methyl Esters (FAME) Production: A Review

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1085
Author(s):  
Shafaq Nisar ◽  
Muhammad Asif Hanif ◽  
Umer Rashid ◽  
Asma Hanif ◽  
Muhammad Nadeem Akhtar ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Large Scale ◽  
Heterogeneous Catalysts ◽  
Fatty Acid Methyl Esters ◽  
Low Cost ◽  
Methyl Esters ◽  
Acid Catalyst ◽  
Product Formation ◽  
Biodiesel Production ◽  
Acid Methyl

The effective transesterification process to produce fatty acid methyl esters (FAME) requires the use of low-cost, less corrosive, environmentally friendly and effective catalysts. Currently, worldwide biodiesel production revolves around the use of alkaline and acidic catalysts employed in heterogeneous and homogeneous phases. Homogeneous catalysts (soluble catalysts) for FAME production have been widespread for a while, but solid catalysts (heterogeneous catalysts) are a newer development for FAME production. The rate of reaction is much increased when homogeneous basic catalysts are used, but the main drawback is the cost of the process which arises due to the separation of catalysts from the reaction media after product formation. A promising field for catalytic biodiesel production is the use of heteropoly acids (HPAs) and polyoxometalate compounds. The flexibility of their structures and super acidic properties can be enhanced by incorporation of polyoxometalate anions into the complex proton acids. This pseudo liquid phase makes it possible for nearly all mobile protons to take part in the catalysis process. Carbonaceous materials which are obtained after sulfonation show promising catalytic activity towards the transesterification process. Another promising heterogeneous acid catalyst used for FAME production is vanadium phosphate. Furthermore, biocatalysts are receiving attention for large-scale FAME production in which lipase is the most common one used successfully This review critically describes the most important homogeneous and heterogeneous catalysts used in the current FAME production, with future directions for their use.

Analysis of Lipids Produced by Microalgae Isolated from the Area around Okinawa, Japan

2017 ◽  
pp. 222-233
Author(s):  
Shinya Ikematsu ◽  
Ipputa Tada ◽  
Yasuma Nagasaki
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Palmitic Acid ◽  
Methyl Esters ◽  
Dry Weight ◽  
Botryococcus Braunii ◽  
Biodiesel Fuel ◽  
High Lipid ◽  
Institute Of Technology ◽  
Petroleum Reserves

Petroleum reserves have been decreasing in recent years and microalgae are attractive as a potential source of new biomass petroleum. Microalgae are unicellar microscopic algae and most species microalgae produce lipids. In particular, Botryococcus braunii produces large amount of lipids found with nearly 70% on the basis of the dry weight. This chapter reviews high lipid-producing microalgae found from Okinawa area around National Institute of Technology, Okinawa College (NIT, Okinawa). The microalgae collected were isolated on an AF-6 agar plates, and incubated in AF-6 medium. The fatty acids were extracted from the algae, converted into fatty acid methyl esters, and analysed by GC/MS. As a result, two microalgae strains were identified that the produced fatty acids was loaded in the algae with nearly 20% in the dry weight base. In addition, these two microalgae strains produced palmitic acid as nearly 40% of the total produced lipids. Therefore, the two microalga strains isolated are potentially and highly efficient for the organisms applied for the production of biodiesel fuel.

Sign in / Sign up

Export Citation Format

Share Document