SPENT EDIBLE OIL SOAP ANALYSIS ON CHEMICAL PRACTICUM ACTIVITIES IN SMA HARAPAN III DELI SERDANG

  • Herlina H Institut Kesehatan Medistra Lubuk Pakam
  • Karnirius Harefa
Keywords: edible oil; saponification; foam test; free alkali content; acid base titration

Abstract

Spent edible oil is the result of repeated frying that is mostly done in the fast food industry or in household activities and generally this used cooking oil is disposed of as waste that pollutes the waters in the environment. Spent edible oil is a good ingredient for soap making because its raw material is relatively cheaper than most oils. In a simple laboratory study conducted by students of SMA Harapan III Deli Serdang, soap was made from used cooking oil using alkaline NaOH. The saponification process was carried out using used edible oil soap 0.3 parts by mass ratio of NaOH at a concentration of 30% and 1 part of used edible oil bleached with activated charcoal. The analysis of edible oil soap that has been made by determinate the value of free alkali with acid-base titration method and foam stability test. The results obtained from the determination of the foam test provide foam stability of 83.3% and free alkali content of 0.211%. This soap provides a fairly stable foam stability, but it still feels hot in the hands due to the alkaline NaOH that is used not completely soaped in the washing process. The use of edible oil into soap by students can increase knowledge and can be applied to overcome environmental pollution due to the disposal of edible oil into the environment.

References

Antonić, B., Dordević, D., Jančíková, S., Tremlova, B., & Kushkevych, I. (2020). Physicochemical Characterization of Home-Made Soap from Waste-Used Frying Oils. Processes, 8(10), 1219.

Antonic B., Dordevic D., Jancikova S., Tremlova B., Nejezchlebova N., Goldová K., & Treml J. (2021). Reused Plant Fried Oil: A Case Study with Home-Made Soaps. Processes 9 (03), 529.

Betsy, K. J., Jilu, M., Fathima, R., & Varkey, J. T. (2013). Determination of Alkali Content & Total Fatty Matter in Cleansing Agents. 5.

Gusviputri A., Meliana N.P., Aylianawati, Indraswati N. (2013) Pembuatan Sabun Dengan Lidah Buaya (Aloe Vera) Sebagai Antiseptik Alami Widya Teknik. 12 (01), 11.

Habib A., Kumar S., Sorowar M.D., Karmoker J., Khatun M.K., & Al-Reza S.M (2016). Study on the Physicochemical Properties of Some Commercial Soaps Available in Bangladeshi Market. International Journal of Advanced Research in Chemical Science, 3(6).

Hutauruk H.P., Paulina V. Y. Yamlean P.V.Y., Wiyono W., (2020). Formulasi Dan Uji Aktivitas Sabun Cair Ekstrak Etanol Herba Seledri (Apium graveolens L) Terhadap Bakteri Staphylococcus aureus. Pharmacon Jurnal Ilmiah Farmasi – UNSRAT Vol. 9 (1), 73.

Li W., Guan R., Yuan X., Wang H., Zheng S., Liu L., Chen X. (2020). Product Soap from Waste Cooking Oil IOP Conf. Series: Earth and Environmental Science 510 (04), 2038.

Lubis J. & Mulyati M. (2019). Pemanfaatan Minyak Jelantah Jadi Sabun Padat Jurusan Teknik Industri, Jurnal Metris 20 (02) 116.

Mardiana U., & Solehah V.F. (2020) Pembuatan Sabun Berbahan Dasar Minyak Jelantah Dengan Penambahan Gel Lidah Buaya Sebagai Antiseptik Alami. 1 Jurnal Kesehatan Bakti Tunas Husada :Jurnal Ilmu Ilmu Keperawatan, Analis Kesehatan dan Farmasi 20 (2), 252.

Widyasanti, A., Qurratu’ain, Y., & Nurjanah, S. (2017). Pembuatan Sabun Mandi Cair Berbasis Minyak Kelapa Murni (VCO) dengan Penambahan Minyak Biji Kelor (Moringa oleifera Lam). Chimica et Natura Acta, 5(2), 77.

Published
2022-06-30