scholarly journals Jurnal_TEDC VOL 12 N.1, Januari 2018

2019 ◽  
Author(s):  
Lusi Marlina
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Seed Weight ◽  
Fatty Acid Content ◽  
Fruit Production ◽  
Acid Number ◽  
Raw Material ◽  
Process Variables ◽  
Avocado Fruit

PENGAMBILAN MINYAK BIJI ALPUKATDENGAN METODE EKSTRAKSILusi Marlina1, Dian Wahyu Pratama21,2 Teknik Kimia - Politeknik TEDC BandungJl. Politeknik-Pesantren KM2 Cibabat Cimahi Utara – Cimahi Jawa Barat - [email protected], [email protected] Indonesia produksi alpukat sudah cukup tinggi, dapat dibuktikan dengan data produksi buah alpukat padatahun 2014 tercatat 307.326 ton per tahun. Bersamaan dengan produksi alpukat yang terus meningkat, makalimbah biji alpukat juga akan semakin meningkat. Biji alpukat merupakan salah satu sumber minyak nabatiyang berpotensi sebagai bahan baku pengganti. Maka perlu dilakukan penelitian tentang minyak biji alpukatyang didapatkan dengan metode ekstraksi menggunakan pelarut n-heksana dengan variabel proses volumepelarut, berat biji, dan waktu ekstraksi. Dalam mengetahui mutu dari minyak biji alpukat dilakukan analisa%yield, densitas, asam lemak bebas (%ALB), dan angka/bilangan asam. Data hasil penelitian menyatakankandungan minyak biji alpukat sebesar 32,8%. Penelitian ini mendapatkan %yield yang optimum karenadipengaruhi oleh variabel proses, dimana saat volume pelarut 250 ml, berat biji 50gr, dan waktu ekstraksi 90menit. Densitas yang didapatkan yaitu 0,7 – 0,74 gr/ml, kadar asam lemak bebas (%ALB) 0,96% - 1,61%, danuntuk angka/bilangan asam 0,785 – 1,570 mg KOH/gr.Kata kunci : Biji alpukat, ekstraksi, n-hexana, minyak biji nabatiAbstractIn Indonesia, avocado production is quite high, can be proven with data of avocado fruit production in 2014recorded 307,326 tons per year. Along with the increased avocado production, seeds avocado waste will alsoincrease. Seeds Avocado is one source of vegetable oil that has potential as a substitute raw material. So it isnecessary to do research on seeds avocado oil obtained by extraction method using n-hexane solvent withsolvent volume process variables, seed weight, and time of extraction. In knowing the quality of seeds avocadooil is done % yield analysis, density, free fatty acid (% ALB), and number / acid number. The results of researchdata indicate avocado seed oil content of 32.8 %. This study obtained an optimum yield % because it wasinfluenced by process variables, where the volume of solvent was 250 ml, seed weight 50 gr, and extractiontime 90 min. The density obtained was 0.7 - 0.74 gr / ml, free fatty acid content (% ALB) 0.96% - 1.61%, andfor the acid number 0.785 - 1.570 mg KOH / g.Keywords: Seeds of Avocado, extraction, n-hexane, vegetable seeds oil

scholarly journals Jurnal Poltek TEDC Vol.12 No.1 Januari 2018

2019 ◽  
Author(s):  
Lusi Marlina
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Seed Weight ◽  
Fatty Acid Content ◽  
Fruit Production ◽  
Acid Number ◽  
Raw Material ◽  
Process Variables ◽  
Avocado Oil ◽  
Avocado Fruit

PENGAMBILAN MINYAK BIJI ALPUKAT DENGAN METODE EKSTRAKSI Lusi Marlina1, Dian Wahyu Pratama2 1,2 Teknik Kimia - Politeknik TEDC BandungJl. Politeknik-Pesantren KM2 Cibabat Cimahi Utara – Cimahi Jawa Barat - [email protected], [email protected] AbstrakDi Indonesia produksi alpukat sudah cukup tinggi, dapat dibuktikan dengan data produksi buah alpukat pada tahun 2014 tercatat 307.326 ton per tahun. Bersamaan dengan produksi alpukat yang terus meningkat, maka limbah biji alpukat juga akan semakin meningkat. Biji alpukat merupakan salah satu sumber minyak nabati yang berpotensi sebagai bahan baku pengganti. Maka perlu dilakukan penelitian tentang minyak biji alpukat yang didapatkan dengan metode ekstraksi menggunakan pelarut n-heksana dengan variabel proses volume pelarut, berat biji, dan waktu ekstraksi. Dalam mengetahui mutu dari minyak biji alpukat dilakukan analisa %yield, densitas, asam lemak bebas (%ALB), dan angka/bilangan asam. Data hasil penelitian menyatakan kandungan minyak biji alpukat sebesar 32,8%. Penelitian ini mendapatkan %yield yang optimum karena dipengaruhi oleh variabel proses, dimana saat volume pelarut 250 ml, berat biji 50gr, dan waktu ekstraksi 90 menit. Densitas yang didapatkan yaitu 0,7 – 0,74 gr/ml, kadar asam lemak bebas (%ALB) 0,96% - 1,61%, dan untuk angka/bilangan asam 0,785 – 1,570 mg KOH/gr. Kata kunci : Biji alpukat, ekstraksi, n-hexana, minyak biji nabatiAbstractIn Indonesia, avocado production is quite high, can be proven with data of avocado fruit production in 2014 recorded 307,326 tons per year. Along with the increased avocado production, seeds avocado waste will also increase. Seeds Avocado is one source of vegetable oil that has potential as a substitute raw material. So it is necessary to do research on seeds avocado oil obtained by extraction method using n-hexane solvent with solvent volume process variables, seed weight, and time of extraction. In knowing the quality of seeds avocado oil is done % yield analysis, density, free fatty acid (% ALB), and number / acid number. The results of research data indicate avocado seed oil content of 32.8 %. This study obtained an optimum yield % because it was influenced by process variables, where the volume of solvent was 250 ml, seed weight 50 gr, and extraction time 90 min. The density obtained was 0.7 - 0.74 gr / ml, free fatty acid content (% ALB) 0.96% - 1.61%, and for the acid number 0.785 - 1.570 mg KOH / g. Keywords: Seeds of Avocado, extraction, n-hexane, vegetable seeds oil

scholarly journals Analisis Penggunaan dan Syarat Mutu Minyak Goreng pada Penjaja Makanan di Food Court UAI

2012 ◽  
Vol 1 (3) ◽  
pp. 147
Author(s):  
Nita Noriko ◽  
Dewi Elfidasari ◽  
Analekta Tiara Perdana ◽  
Ninditasya Wulandari ◽  
Widhi Wijayanti
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Water Content ◽  
Free Fatty Acid Content ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Trade Mark ◽  
Cooking Oil ◽  
Oil Utilization

<p style="text-align: justify;">Masyarakat Indonesia memiliki ketergantungan terhadap minyak goreng. Berdasarkan hal tersebut, perlu dilakukan penelitian tentang penggunaan dan mutu minyak goreng yang beredar di masyarakat khususnya pada <em>food court</em> Universitas Al Azhar Indonesia. Analisis penggunaan minyak goreng penjaja makanan dilakukan dengan melakukan survey. Untuk mengetahui kualitas minyak goreng, dilakukan analisis laboratorium yang meliputi pengukuran kadar air, kadar asam lemak bebas, dan bilangan Iod. Dari dua belas kantin, ada sembilan kantin yang menggunakan minyak goreng. Hasil analisis penggunaan minyak goreng, penjaja makanan secara konsisten  34% menggunakan minyak goreng bermerek dagang A. Pemilihan minyak berdasarkan warna dilakukan oleh 45% penjaja makanan. Berdasarkan frekuensi pembelian, 56% penjaja makanan membeli minyak per hari. Selain itu, 45% penjaja makanan menggunakan minyak dua kali pakai. Analisis kebutuhan minyak menunjukkan, 34% penjaja makanan menghabiskan 5 liter minyak per hari. Cara pembuangan minyak yang dilakukan oleh penjaja, 78% membuang minyaknya setelah digunakan, dimana 67% penjaja makanan membuangnya ke tempat sampah. Berdasarkan pengukuran kadar air, kadar asam lemak bebas, dan bilangan Iod menunjukkan bahwa minyak goreng yang digunakan belum memenuhi standar syarat mutu, walaupun kadar air yang masih di dalam ambang batas normal yaitu kurang dari 0,30%, namun kadar asam lemak bebas baik sebelum maupun sesudah penggunaan melebihi ambang batas normal yang didukung oleh hasil pengukuran bilangan Iod.</p><h6 style="text-align: center;"><strong>Abstract</strong></h6><p style="text-align: justify;">Indonesian society has dependence of cooking oil. Based on this condition, the analysis of cooking oil utilization and quality requirement at UAI food court is necessary and it was done. The analysis of cooking oil utilization was done by doing some survey. In order to search the quality of cooking oil, laboratory analysis was done that consist of water content, free fatty acid content, and Iod number. There are nine canteens from twelve canteens which utilize cooking oil. The result of cooking oil utilization analysis shows that 34% of merchant is utilizing A trade mark cooking oil, 45% is identifying cooking oil based on color. 56% is buying cooking oil per day, 45% is utilizing the cooking oil twice, 34% is spending 5 liters cooking oil per day, 78% is casting the cooking oil after utilize it, and 67% is casting the cooking oil into trash can. Based on the result of water content, free fatty acid content, and Iod number analysis showed that cooking oil is never fulfill normal limit, although the water content is still in proper limit is less than 0,30%, whereas free fatty acid content before or after analysis are very high and do not in proper limit and it is supported by Iod number measurement result.</p>

scholarly journals TRADITIONAL COCONUT OIL PURIFICATION USING ACTIVATED CHARCOAL COCONUT SHELL ADSORBENTS

2020 ◽  
Vol 4 (1) ◽  
pp. 37
Author(s):  
Nining Putri Kurnianingsih ◽  
Maherwati Maherawati ◽  
Tri Rahayuni
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Activated Charcoal ◽  
Block Design ◽  
Fatty Acid Content ◽  
Coconut Oil ◽  
Coconut Shell ◽  
Oil Refining ◽  
Randomized Block Design

Coconut oil in West Kalimantan is still largely a traditional coconut oil because it has not gone through a refining process. To improve the quality of traditional coconut oil, the addition of activated charcoal can be used as an adsorbent so as to improve the quality of coconut oil. Activated charcoal can be made from materials that contain high carbon, one of which is a coconut shell. The purpose of this study was to determine the effect of adding activated charcoal to improving the quality of traditional coconut oil and the concentration of adding activated charcoal that produced the best characteristics of coconut oil. The research design used was a Randomized Block Design with one factor (coconut shell active charcoal concentration) 6 levels of treatment (0%, 1%, 2%, 3%, 4%, 5%) with 4 replications. The data obtained were analyzed using ANOVA (ɑ = 5%) if there was an influence followed by BNJ test (ɑ = 5%). The results showed that the addition of coconut shell activated charcoal with a concentration of 1% -5% to traditional coconut oil can significantly reduce free fatty acid levels. In addition, the addition of activated charcoal affects the sensory attributes of color and aroma to be better than the control (without the addition of activated charcoal). The best traditional coconut oil produced in this study is traditional coconut oil added with coconut shell activated charcoal with a concentration of 5% with chemical and sensory characteristics as follows: water content 0.138%, free fatty acid content 0.428%, saponification number 231, 9 mg KOH / g, color value 4,88, and aroma value 3,68.Keywords: adsorbent, activated charcoal, coconut oil, refining, coconut shell

scholarly journals Bioavtur Synthesis from Palm Fatty Acid Distillate through Hydrotreating and Hydrocracking Processes

2019 ◽  
Vol 2 (2) ◽  
pp. 99-110
Author(s):  
J.S. Sabarman ◽  
E.H. Legowo ◽  
D.I. Widiputri ◽  
A.R. Siregar
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Fatty Acid Content ◽  
Oil Refinery ◽  
Raw Material ◽  
Catalyst Loading ◽  
Jet Fuels ◽  
Solvent Ratio ◽  
Palm Fatty Acid Distillate ◽  
Fatty Acid Distillate

Increasing concern in fossil fuel depletion and CO2 emissions create an urgent need for biofuel substitution. Bio-jet fuel is a possible alternative for conventional jet fuels which currently accounts for 2% of the world’s CO2 emission. Palm Fatty Acid Distillate (PFAD) is the byproduct of palm oil refinery process, which has a potential to become a promising raw material for the synthesis of bioavtur due to its high free fatty acid content. The oil-to-jet pathway is a possible route to produce bioavtur from PFAD, which includes hydrotreating, hydrocracking, and hydroisomerization processes. This research aims to investigate the hydrotreating and hydrocracking processes. The parameters that were investigated are temperature, solvent to PFAD ratio, catalyst loading, and pressure. The parameters variations were as follows: the temperature at 350oC and 400oC, the pressure at 40 bar and 32.5 bar, the solvent to PFAD ratio at 2:1 and 1:1, and the catalyst loading (%wt) at 1%, 2%, and 3%. Presulfided NiMo/γ-Al2O3 PIDO 120 1.3 was used for one-step hydrotreating and hydrocracking processes. Results indicated that the 400oC provided better free fatty acid (FFA) conversion. FFA is also almost completely removed when the catalyst used is 3% weight. Solvent to PFAD ratio affected the FFA conversion marginally, while higher catalyst loading (3%) improved the FFA conversion. Gas chromatography results show that the hydrocarbon chains are successfully hydrocracked into C9-C17. The best selectivity of the product to bioavtur range was calculated at 68.99%. Solvent ratio affects the hydrocracking more significantly than the catalyst loading. One sample with temperature operation 400oC and solvent to PFAD ratio 1:1 was in the range of conventional avtur density. With the method used in this study, it can be concluded that PFAD is a promising raw material for bioavtur. Keywords: Palm Fatty Acid Distillate (PFAD), hydrotreating, hydrocracking, bioavtur

scholarly journals ARANG AMPAS TEBU UNTUK MENURUNKAN KADAR ASAM LEMAK BEBAS MINYAK GORENG BEKAS

2018 ◽  
pp. 189-193
Author(s):  
P Purwati ◽  
Tri Harningsih
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Free Fatty Acids ◽  
Fatty Acid Content ◽  
Cooking Oil ◽  
Used Oil ◽  
Used Cooking Oil ◽  
Lower Free Fatty Acid

ABSTRAK Minyak digunakan secara berulangkali mengakibatkan penurunan kualitas minyak. Salah satunya adalah peningkatan asam lemak bebasnya. Limbah ampas tebu yang diubah ke dalam bentuk arang digunakan menurunkan asam lemak bebas pada minyak goreng bekas. Penambahan arang ampas tebu dengan variasi massa dapat menurunkan asam lemak bebas. Asam lemak bebas minyak bekas sebelum ditambah dengan arang ampas tebu adalah 0,62 %. Angka tersebut mengalami penurunan setelah penambahan variasi massa ampas tebu dimulai dengan 2,5 gram; 5,0 gram; 7,5 gram; 10,0 gram dan 12,5 gram. Hasil asam lemak bebas berturut-turut 0,61%; 0,55%; 0,48%; 0,45%; 0,43%. Kondisi optimum dari massa arang ampas tebu sebesar 12,5 gram. Prosentase penurunan asam lemak bebas sebesar 30,41 % dengan kadar asam lemak bebas dari sebelum dilakukan adsorbsi sebanyak 0,61% menjadi 0,43%.   Kata kunci: arang ampas tebu, asam lemak bebas, minyak goreng bekas       ABSTRACT Oils used repeatedly will result in a decrease in the quality of oil. One of which is the increase in free fatty acids. The waste bagasse which is converted into charcoal form used to lower free fatty acid in used oil casting. The addition of charcoal of bagasse with variation of mass can decrease free fatty acid. The fatty acid free of used oil before it is added with sugarcane bagasse is 0,62%. The number decreases after the addition of variation of bagasse mass begins with 2,5 grams; 5,0 grams; 7,5 grams; 10,0 grams and 12; 5 grams. Free fatty acids result are 0,61%; 0,55%; 0,48%; 0,45%; 0; 43% respectively. The optimum condition from the mass of charcoal of bagasse is 12,5 grams. Percentage of free fatty acid decrease of 30,41% with free fatty acid content from before adsorbs 0,61% to 0,43%.   Keywords: charcoal of bagasse, free fatty acids, used cooking oil

KUALITAS MINYAK BIJI KARET SEBAGAI MINYAK PANGAN ALTERNATIF PASCA PENGHILANGAN HCN

2014 ◽  
Vol 7 (2) ◽  
pp. 17 ◽  
Author(s):  
Rizka Karima
Keyword(s):  
Fatty Acid ◽  
Iodine Number ◽  
Edible Oils ◽  
Fatty Acid Content ◽  
Mean Value ◽  
Acid Number ◽  
Edible Oil ◽  
Quality Testing ◽  
The Mean

The rubber seeds (Hevea brasiliensis) can be used because rubber seed contains a high fat or oil contain so that it can be utilized as being edible oil. However, the problem is the presence of Hydrogen Cyanide (HCN) toxic compound in the rubber seeds which is so dangerous. Cyanide acid it can be reduces with soaking and boiling process. The purpose of this research were to known quality of rubber seeds. Rubber seeds oil was produced after HCN content was reduced. Mean yield of rubber seeds was 20,13%. Quality testing is done with a few key parameters on which oil fatty acid composition, acid number, peroxide number and iodine number. Total saturated fatty acid content was 14.1% and an unsaturated fatty acid was 85.9%, the mean value of the acid number was 4.19 mgKOH / g, peroxide value MeqO 11.17 / kg and iodine number of 140 g iodine / 100 g. These results indicate that good quality oil for edible oils when compared with the standard.Keywords : rubber seeds, rubber seeds oil, edible oil

scholarly journals Efficiency Evaluation on the Influence of Washing Methods for Biodiesel Produced from High Free Fatty Acid Waste Vegetable Oils through Selected Quality Parameters

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6328
Author(s):  
Eugenia Guadalupe Ortiz Lechuga ◽  
Mauro Rodríguez Zúñiga ◽  
Katiushka Arévalo Niño
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Vegetable Oils ◽  
Canola Oil ◽  
Alternative Energy ◽  
Fatty Acid Content ◽  
Acid Number ◽  
Biodiesel Production ◽  
High Free Fatty Acid ◽  
Specific Storage

The increasing use of alternative energy sources has brought benefits like the recycling of waste vegetable oils (WVO) for biodiesel production; however, this practice presents challenges derived from a highly variable raw matter. Our research focused on the washing techniques usually employed by small to medium scale producers which may lack the infrastructure to perform high-grade purification and often relay on the employment of “artisanal” technology. We report biodiesel production from pure canola oil (C1) and a mix of soybean/canola oil (C2) as well as WVO from sample C2 with high free fatty acid content (2.7 FFA %) oil. We selected seven quality tests: pH determination, cloud, pour and flash point, acid number (AN), water/sediments and soap content considering the most commonly failed checkpoints in biodiesel production. From the use of four washing techniques, we determined that the sawdust filtration had the highest recovering yield with 89%. The majority of the washed biodiesel met the America Society of Testing Material (ASTM) standard limits for the tests selected. Biodiesel stability was tested from week 0 to week 6, determining a shelf life of three weeks in optimal conditions without the addition of antioxidants or specific storage conditions.

scholarly journals Sintesis Karbon Aktif Tempurung Ketapang (Terminalia catappa) Sebagai Adsorben Minyak Jelantah

2017 ◽  
Vol 2 ◽  
pp. 137 ◽  
Author(s):  
Megiyo Megiyo ◽  
Herman Aldila ◽  
Fitri Afriani ◽  
Robby Gus Mahardika ◽  
Sito Enggiwanto
Keyword(s):  
Activated Carbon ◽  
Free Radicals ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Free Fatty Acid Content ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Acid Number ◽  
Frying Oil ◽  
Waste Frying Oil

<p class="AbstractEnglish"><strong>Abstract:</strong> Activated carbon is the most common adsorbents used in regeneration of cooking oil process. Waste frying oil is a residual of frying that has been destructed due to repeated use. For reusable, it must through by oil regeneration process to eliminate impurities and free radicals. One of the abundant biomass and feasible to be activated carbon is ketapang shell. The synthesis of activated carbon used activator H<sub>2</sub>SO<sub>4</sub> 11% with ratio 1: 4 (w / v) followed by thermal activation at 650<sup>o</sup>C for 2 hours. Activated carbon is then mixed with waste frying oil with variations of 5%, 7.5% and 10% and is left for 24 hours. As an antioxidant to free radicals added extract iding-iding (Stenochlaena palustris) of 5%. Based on the observation data SEM pore distribution on activated charcoal fairly evenly with the average pore width around 10 mm. The results of acid number and free fatty acid test showed that the greater amount of activated carbon used, the value of acid number and free fatty acid content will decrease. The optimum condition was obtained on 10% active carbon and 5% extract with 0.8% acid value and 0.78% free fatty acid content.</p><p class="KeywordsEngish"> </p><p class="AbstrakIndonesia"><strong>Abstrak:</strong> Karbon aktif merupakan salah satu adsorben yang umum digunakan dalam upaya peningkatan regenerasi minyak jelantah. Minyak jelantah merupakan limbah hasil sisa penggorengan yang telah terdestruksi akibat pemakaian yang berulang-ulang. Untuk dapat digunakan kembali minyak jelantah harus mengalami proses regenerasi minyak untuk menghilangkan impuritas dan radikal bebas. Salah satu biomassa yang begitu melimpah dan layak untuk dijadikan karbon aktif adalah tempurung ketapang. Sintesis karbon aktif tempurung ketapang dilakukan dengan menggunakan aktivator H<sub>2</sub>SO<sub>4</sub> 11% dengan perbandingan 1:4 (b/v) dilanjutkan dengan aktivasi termal pada temperatur 650<sup>o</sup>C selama 2 jam. Karbon aktif yang diperoleh kemudian dicampurkan dengan minyak jelantah dengan variasi 5%, 7,5% dan 10% dan dibiarkan selama 24 jam. Sebagai penangkal radikal bebas ditambahkan ekstrak iding-iding <em>(</em><em>Stenochlaena palustris)</em><em> </em>sebesar 5%. Berdasarkan hasil pengamatan data SEM sebaran pori pada arang aktif tempurung ketapang cukup merata dengan lebar pori rata-rata berkisar 10 mm. Hasil uji bilangan asam dan kadar asam lemak bebas menunjukkan bahwa semakin besar jumlah karbon aktif yang digunakan maka nilai bilangan asam dan kadar asam lemak bebas akan semakin menurun. Kondisi optimum diperoleh pada komposisi 10% karbon aktif dan 5% ekstrak iding-iding dengan nilai bilangan asam 0,8% dan kadar asam lemak bebas 0,78%.</p>

scholarly journals Pemanfaatan Daun Cengkeh (Syzygium aromaticum L.) Dalam Proses Pembuatan Virgin Coconut Oil (VCO)

2020 ◽  
Vol 9 (2) ◽  
pp. 184
Author(s):  
Rosita Mangesa ◽  
Irsan Irsan
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Water Content ◽  
Coconut Oil ◽  
Acid Number ◽  
National Standard ◽  
Syzygium Aromaticum ◽  
Virgin Coconut Oil ◽  
Standard Limit

The clove leaves are part of the clove plant which rarely used, and if you look at them, the clove leaves have active compounds that can be functioned as antibacterials. Meanwhile, Virgin Coconut Oil or called VCO, is processed from coconut milk as the essential ingredient, and if it is not processed correctly, VCO will usually have a short shelf life or can be damaged quickly. This study aims to determine the quality of VCO by adding clove leaves in its processing. Based on the results of the study, it can be seen that the quality of VCO with the addition of clove leaves for the indicator of water content and the free fatty acid number is not following the Indonesian National Standard (SNI). In contrast, the indicator for the VCO peroxide number with a mixture of clove leaves has good quality according to the SNI standard. Based on the results of the study, it can be seen that the quality of VCO with the addition of 100 grams of clove leaves for indicators of water content and fatty acid numbers, namely 2.9% and 0.69%, is high or above the SNI standard limit. In comparison, the quality of VCO with the addition of 100 grams of clove leaves with indicators a peroxide value of 0.7 mg ek/ kg or less than 2 mg ek/kg has good quality based on Indonesian National Standard. Keywords: Quality, VCO

scholarly journals PENINGKATAN KUALITAS MINYAK JELANTA MENGGUNAKAN KARBON AKTIF DAN EKSTRAK PUCUK IDAT (Cratoxylum glaucum)

2018 ◽  
Vol 1 (1) ◽  
pp. 17
Author(s):  
Robby Gus Mahardika ◽  
Sito Enggiwanto ◽  
Ary Samsiar
Keyword(s):  
Fatty Acids ◽  
Activated Carbon ◽  
Free Radicals ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Oil Quality ◽  
Waste Cooking Oil ◽  
Acid Number ◽  
Cooking Oil

Silica Waste cooking oil can be used as a soap or biodiesel. Good soaps or biodiesel should be from oils that have low levels of fatty acids and free radicals. However, waste cooking oil has high free fatty acid and free radical, it is necessary to increase the quality of waste cooking oil. One effort to improve the quality of waste cooking oil can use activated carbon as an adsorbent. Decrease in free radicals in cooking oil can use antioxidants from extract pucuk idat (Cratoxylum glaucum). This study aims to see the effect of extract pucuk idat on the process of improving the quality of waste cooking oil. The process of improvement by adding activated carbon and varying the concentration of ethanol extract pucuk idat. Activated carbon used 10% with variation of extract 0,25%; 0,5% and 0,75%. This process followed by stirring for 15 minutes at 80°C, then soaked for 3 days. Oil quality are identified by the method of determining the levels of free fatty acids and acid numbers. The results of this study indicate that extract pucuk idat in ethanol with 0,75% concentration has the lowest free fatty acid and acid number. Extract pucuk idat can improve the quality of waste cooking oil.

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