Utilization of banana stalks as substitute for caustic soda in soap making /
Argel Joseph M. Mojica
- Indang, Cavite : Cavite State University- Main Campus, 2000.
- xvi, 56 pages : illustrations ; 28 cm.
Applied Research IV (Agri-Science Curriculum) Cavite State University.
Includes bibliographical references.
Science High School, College of Education (CED) Science High School, College of Education (CED)
MOJICA, ARGEL JOSEPH M.; ARANAS, CARMI MARIE M.; DEL MUNDO, TERESA D.; FERRERA, CHARISSE MAE M., Applied Research 111 (General Science Curriculum) Cavite State University, Indang, Cavite, February 2000 "Utilization of Banana Stalks as Substitute for Caustic Soda in Soap-making"Adviser: Prof. Gliceria L. Masicap Prof. Dulce L. Ramos The utilization of banana stalks as substitute for caustic soda in the making of soap was conducted to produce lye extract from the banana stalks. Specifically, it aimed to identify the amount of lye that will be produced; determine the physical and chemical properties of the lye extract; prepare bath soap from banana stalk lye; and evaluate the effectiveness of the prepared bath soap. The physical properties of the prepared lye such as color, odor and specific gravity, as well as its chemical characteristic like pH value was taken into consideration. The study was conducted from July 1999 to January 2000. The first part, which was the lye preparation, lasted for four months. Banana stalks were gathered and pounded into fine fibers. They were dried under the sun for ten days until brittle. Afterwards they were burned, and the collected ash was placed in the improvised flowerpots for the leaching and filtration process. The extract was placed under the sun until crystals formed. The lye extract was boiled and placed in containers for the evaluation of color, odor, specific gravity as well as its pH value. The method of preparing the soap was affected by the amount of lye extract that was added to the other ingredients. And thus, was subjected to different treatments. They were to (control 100% caustic soda lye), Tl (70% caustic soda lye, 30% banana stalk lye), T2 (30% caustic soda lye, 70% banana stalk lye). The lye extract was boiled until half of its volume was left in the beaker. Using the cold process, the ingredients such as coconut oil, lye extract, silicate and CDEA, was placed in a mixer within ten minutes of interval and was stirred thoroughly. The mixture was poured in the molder for the completion of the saponification process. It took a week before the product was evaluated by ten panelists. The produced bath soap was rated according to odor, hardness, texture, color, lather, mildness, and general acceptability. The scores were encoded on the prepared score sheets. The three treatments with three replications were each subjected to analysis of variance (ANOVA) and Duncan's Multiple Range Test. Results revealed that the addition of banana stalk lye had a positive effect on the sensory attributes of bath soap as proven by the significant results in Tl than T2. It was further explained by the close means of Tl to the control group To.