The Utilization of Waste Cooking Oil As a Material of Soap

Abstract

Cooking oil is a vegetable oil as a glyceride compound from various fatty acids. Cooking oil can be used up to 3-4 times for cooking. If cooking oil is used repeatedly, the fatty acids will be more saturated and can change color. The waste cooking oil is said to have been damaged and is not good for consumption and can pollute the environment. Appropriate technology is a technology designed for a particular society to be adapted to environmental, political, cultural, social, and economics aspects. The purpose of appropriate technology is to be able to save money, be easy to maintain, and minimize costs to the community. The appropriate technology in this study aims to facilitate the production process of making soap or can also achieve the desired goals effectively in a place or production. The results of this research are mixer and soap products, which are mixers made from used materials to be used as soap making tools. For the processing of soap products, cooking oil waste is used, which is known that the cost of production per soap bar is Rp578.00. Researchers sell it at a price of Rp1,000.00. The Break Event Point (BEP) value is 200 bars of soap per year or Rp200,000.00. Net Present Value (NPV) in 4 years is Rp9,498,061.00, and the Return of Investment (ROI) from the payback period is 0.9 months.

Purification of used cooking oil using natural corn cob and carbon corn cob as adsorbent with batch operation

“…Cooking oil is a glyceride compound vegetable oil from various fatty acids. Cooking oil repeatedly causes fatty acids to become saturated and can change color [1]. Cooking oil used through the heating process will experience a decrease in quality, which can be seen from its increasingly unpleasant aroma, darker color, fatty acid levels, viscosity and higher peroxide levels [2].…”

Recent advances in the production of soap from used cooking oil for environment remediation

“…To mitigate these problems it is essential to properly dispose of UCO by recycling it or by utilizing collection points for disposal. Therefore a novel approach to refining waste cooking oil must be developed in order to increase its economic worth as well as utilize it as an initial component for the fabrication of soap [3].…”

Soap Making Project from Waste Cooking Oil for High School Students’ Chemistry Learning: Qualitative Content Analysis

“…Soap is one of the examples of utilization product of WCO (Li et al, 2020). Several studies shows that WCO can be utilized to produce soap (Abera et al, 2023;Félix et al, 2017;Maotsela et al, 2019;Mustakim et al, 2020).…”

“…Students expected to produce soap as the output of the learning process, this activity can build up their creativity as they can combine other materials to enhance the quality of the soap (Félix et al, 2017). Mustakim et al (2020) study shows the production of soap cost only Rp578.00. per soap which inexpensive.…”