Optimization of the Enzymatic Synthesis of Biodiesel from &lt;i&gt;Terminalia cattapa&lt;/i&gt; L. Kernel Oil Using Response Surface Methodology

Suhendra, Dedy; Gunawan, Erin Ryantin; Nurita, Arista Dewi; Komalasari, Desy; Ardianto, Teguh

doi:10.5650/jos.ess16167

Cited by 13 publications

(6 citation statements)

References 25 publications

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“…Meanwhile, a coefficient of determination (R 2 ) value of 0.7955 (Table-3) showed equation to be not too highly reliable. However, this value is still above the 0.75 values generally considered to be sufficient for adequately representing [11]. …”

Section: Resultsmentioning

confidence: 65%

“…Each sample was incubated in a water bath shaker at a speed of 150 rpm during the period and a specific temperature. The reaction product was analyzed by using GC-MS using the parameters/ optimum condition as it has been developed by Suhendra et al [11].…”

Section: Methodsmentioning

confidence: 99%

“…The most appropriate method is a factorial central composite rotatable design-response surface methodology (RSM-CCRD). The main advantage of CCRD-RSM is the reduced number of experiments, faster and less expensive method [11]. This method gives the optimum conditions which can be applied to the production of ethyl palmitate in industrial scale (scale-up reaction) and able to evaluate the interactive effects.…”

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confidence: 99%

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Four Factor Surface Response Optimization of Ethyl Palmitate from Terminalia cattapa L. Kernel Oil

Gunawan¹,

Suhendra²,

Nurita³

et al. 2017

Asian J. Chem.

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INTRODUCTIONEthyl palmitate is the ester derivatives of palmitic acid which is a saturated fatty acid. Chemical formula of this compound is C 18 H 36 O 2 . It is a colorless solid with a wax-like odor. Esters are important organic compounds with increasing number of commercial applications [1]. Ethyl palmitate are infrequent found in the nature, except the base material synthesized from saturated fatty acids, such as palmitic acid.Palmitic acid contained in palm oil (39.2-45.8 %) [2], corn oil 8.0-12.0 %, soybean oil 7-10 %, canola oil 3.0-7.0 %, 4.1-17.3 %, sun flower, 2.0-6.0 %, linseed 4.0-7.0 % [3], coconut 4.6-20.0 % [4]. Transesterification reaction of oils which contained palmitic acid and ethanol will produce ethyl palmitate. Ethyl palmitate can be used as a raw material in the manufacture of cosmetics, detergents, additives at the textile and paper [5], flavors and pharmaceuticals and hydraulic fluids [6]. Ethyl palmitate is used as a hair and skin-conditioning agent as well.Ethyl palmitate in commercial applications has been hampered due to the low amounts that can be recovered from natural sources [7,8]. Therefore, most of the available esters are produced by chemical or enzymatic synthesis. Chemical transesterification method leads to high energy consumption and degradation of ester produced. Meanwhile, The biotechnological production of ethyl palmitate using lipases has received particular attention due to the mild reaction conditions

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Section: Resultsmentioning

confidence: 65%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Four Factor Surface Response Optimization of Ethyl Palmitate from Terminalia cattapa L. Kernel Oil

Gunawan¹,

Suhendra²,

Nurita³

et al. 2017

Asian J. Chem.

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“…Asiana, 2020, 3 (2) 164 DOI: 10.29303/aca.v3i2. 48 Gunawan et al [8]. In the case of one variable's technique at a time, this is used to determine the optimum state of the four variables that influence each other, then the number of experiments will be very high.…”

Section: Interactions Between Variables Can Affect the Amount Of Methmentioning

confidence: 99%

“…Amount of volumes (10 ml) of n-hexane is inserted into the Erlenmeyer and added amount of cottonseed oil, methanol, and the enzyme lipase in accordance with the predictions of 30 as data obtained previously by Design Expert software v.7 Each sample was incubated in a water bath shaker at a speed of 150 rpm during the period and a specific temperature. The reaction product was analyzed by using GC-MS using the parameters/ optimum condition as it has been developed by Suhendra et al [8] Statistical and data analysis The results were analyzed with ANOVA to observe the fit model, significance, regression analysis, and lack of fit. The response surface from full factorial experiment and interaction variables were analyzed through CCRD using Design Expert v.7.…”

Section: Transesterification Reactionmentioning

confidence: 99%

Methyl Linoleate Synthesis From Cotton Seeds Oil : Optimization Study

et al. 2020

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Methyl esters are derivatives of triglycerides (oils or fats) that can be produced through esterification and transesterification process. One example of the methyl esters are widely used as an industrial raw material is methyl linoleate. Methyl linoleate is a colorless liquid with molecular formula C19H34O2. Methyl linoleate is a fatty acid ester and has a lot of common use as biodiesel ingredient, textiles, in medical research, emulsifiers and lubricants. The raw materials commonly used for the synthesis of methyl esters are palm oil, coconut oil, soybean oil, and others. But these oils are edible oil materials, so that in this case the raw materials that will be used is the cotton seed that has not been exploited well. The optimization reaction of the methyl linoleate synthesis through enzymatic transesterification from cotton (Ceiba pentandra L.) seed oils and methanol by Response Surface Methodology (RSM) was carried out. Immobilized lipase (lipozymeTL IM) used as catalyst. This research aims to optimize the reaction by observing variety of conditions that are influenced by several variables, such asreaction time, molar ratio, the amount of enzyme and the reaction temperature. Design Expert v.7 software used to view the interaction between the variables via RSM. The mathematical equations and statistical methods showed that the optimum condition of the enzymatic transesterification was obtained at 0.15 gram of amount of the enzyme, the ratio of cotton seed oils: methanol of 1: 2.05 (g/g), a reaction time of 14 hours and a temperature of 49.95 oC with the predicted and actual percentages yield of 37.87 and 38.24%, respectively. The model recommended for obtaining optimum results is a quadratric model with a R-squared value of 0.6957. Keywords: Methyl linoleate, Cotton seed oils, Lipozyme, Optimization study, Design Expertv.7

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