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Journal : Indonesian Physical Review

THE VALUE OF VISCOSITY COEFFICIENT OF COOKING OIL RESULTED BY PURIFICATION BASED ON ACTIVE CHARCOAL TEMPERATURE WITH THE FALLING BALL METHOD Rachmawati, Dewi Oktofa; Suswandi, Iwan; Risha, Nurfa
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.140

Abstract

A change in viscosity indicates the damage to cooking oil. The value of the viscosity coefficient indicates the level of viscosity. This value describes the drag caused by friction between the cooking oil molecules to block the flow. The adhesive property of used cooking oil with a high viscosity value is that it is easy to stick to foodstuffs processed with this oil. Used cooking oil is cooking oil with a high viscosity coefficient value. This oil contains free fatty acids that are harmful to the body. Reuse of used cooking oil for frying foodstuffs is not recommended. Purifying used cooking oil is one way to make cooking oil safe to consume again. The surface adsorption capacity of activated charcoal is increased by heating. Activated charcoal activation temperatures are 27oC, 40oC, 50oC, 70oC, and 90oC.The value of the viscosity coefficient of the purified cooking oil is interesting to study for the activation temperature of the activated charcoal used. The falling ball method was chosen to determine the value of the viscosity coefficient. This method measured the time the ball fell in the oil. Data were analyzed quantitatively descriptively and presented in graphical form. The results show that the value of the viscosity coefficient of the purified cooking oil decreases with the increase in the activated charcoal temperature. The value of the viscosity coefficient of cooking oil as a result of purification using activated charcoal at  90oC is (0.854 ±0.004)  Pa. s
Co-Authors ., Anak Agung Putri Pradnyawati ., Emiel Nur Aida ., Gede Teja Wira Setiawan ., Gusti Ayu Rai Tirta ., I MADE DEDY KRISNAYANA ., I Wayan Jati Adnyana ., Komang Angga Trilaksana ., Ni Luh Mita Antari ., Ni Wayan Tiwik ., Prof. Dr. Ketut Suma, MS. ., Putu Rika Crisna Dewi Anak Agung Putri Pradnyawati . Dewi Oktofa Rachmawati Dr. I Nyoman Tika,M.Si . Dr. Ni Made Pujani,M.Si . Emiel Nur Aida . Gede Saindra Santyadiputra, Gede Saindra Gede Teja Wira Setiawan . Gunadi, Gede Aris Gusti Ayu Rai Tirta . I G Aris Gunadi I G. A. N. Sri Wahyuni I Kadek Yudi Wihardi Marditha . I MADE DEDY KRISNAYANA . I Nyoman Putu Suwindra I Putu Widiarta . I Putu Widiarta ., I Putu Widiarta I Wayan Ade Surya Putra . I Wayan Ade Surya Putra ., I Wayan Ade Surya Putra I Wayan Jati Adnyana . I Wayan Santyasa I Wayan Santyasa I Wayan Suastra Kadek Dwi Cita Pusparini Kadek Surya Mahedy Kadek Yurika Prastiwi . Ketut Purnamawan Ketut Purnamawan Ketut Suma Ketut Suma Komang Angga Trilaksana . Lisniandila, Ni Putu Ayu Luh Putu Budi Yasmini Made Juniantari, Made MS Prof. Dr. Ketut Suma . Ni Ketut Rapi Ni Luh Mita Antari . Ni Luh Putu Rusmana Dewi . Ni Made Dwita Pradnya Suantari . Ni Made Dwita Pradnya Suantari ., Ni Made Dwita Pradnya Suantari Ni Putu Nadia Nikki Utami Ni Wayan Tiwik . Nurfa Risha Pande Made Selamet Riyadi . Pande Made Selamet Riyadi ., Pande Made Selamet Riyadi Prof. Dr. Ketut Suma, MS . Prof. Dr. Ketut Suma, MS. . Pusparini, Kadek Dwi Cita Putri Sarini Putu Artawan Putu Rika Crisna Dewi . Putu Yasa Rachmawati, Dewi Oktova Rai Sujanem Risha, Nurfa Setiawan, Y. Z. Utami, Ni Putu Nadia Nikki Wahyuni, I. G. A. Nyoman Sri Wahyuni, I. G. A. Nyoman Sri Waruwu, Wenimanwati Winiari, Luh Putu Y. Z. Setiawan Yasmini, L. P. Budi