scholarly journals Mechanism of Free Fatty Acid Formation during Frying Oil Deterioration

Oleoscience ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 89-92
Author(s):  
Mariko BANNO ◽  
Fumiaki BANNO
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Frying Oil ◽  
Acid Formation ◽  
Oil Deterioration

Removal of free fatty acid in waste frying oil by esterification with methanol on zeolite catalysts

2008 ◽  
Vol 99 (16) ◽  
pp. 7438-7443 ◽  
Author(s):  
Kyong-Hwan Chung ◽  
Duck-Rye Chang ◽  
Byung-Geon Park
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Frying Oil ◽  
Zeolite Catalysts ◽  
Waste Frying Oil

Free fatty acid formation and lipid oxidation on milled rice

2001 ◽  
Vol 78 (12) ◽  
pp. 1271-1275 ◽  
Author(s):  
Henry S. Lam ◽  
Andrew Proctor ◽  
Jean-François Meullenet
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Lipid Oxidation ◽  
Acid Formation ◽  
Milled Rice

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>

Sign in / Sign up

Export Citation Format

Share Document