Filtering using Whatman Filter Paper Number 42

Oct 13, 2025 by wbrum.org 49 views

Introduction

Cooking oil is a basic need in every household, but repeated use of cooking oil can cause health problems and pollute the environment. The disposal of used cooking oil is a significant environmental concern, as it can lead to water pollution, soil contamination, and harm to wildlife. However, processing used cooking oil into solid bath soap is a smart solution to overcome this problem. This study examines the potential of used cooking oil collected from households to be converted into safe and quality solid bath soap.

Background

Cooking oil is a common by-product of food processing, and its disposal is a significant environmental concern. The repeated use of cooking oil can cause health problems, such as the formation of free radicals, which can lead to cancer and other diseases. Moreover, the disposal of used cooking oil can pollute the environment, causing harm to wildlife and contaminating soil and water. Therefore, it is essential to find a solution to this problem.

Methodology

This study uses used cooking oil with various types of food such as tofu, tempeh, salted fish, and fresh fish. The used cooking oil is processed through the purification process to eliminate contaminants and improve its quality. The purification process consists of three stages:

Removal of Seasoning (Despicing): This stage involves the removal of impurities and contaminants from the used cooking oil.
Filtering using Whatman Filter Paper Number 42: This stage involves the use of a filter paper to remove impurities and contaminants from the used cooking oil.
Penetration with 15% NaOH: This stage involves the use of sodium hydroxide (NaOH) to improve the quality of the used cooking oil.
Conjunction using 240 and 280 Mesh Activated Carbon: This stage involves the use of activated carbon to remove impurities and contaminants from the used cooking oil.

Results

The results of purification of used cooking oil are then used in making solid bath soap. The process of making this soap is carried out by the sapling method, which is varied with NaOH concentration (20%, 30%, 40%, and 50%) and temperature (25 ° C, 35 ° C, 45 ° C, and 55 ° C). The results showed that used cooking oil that had been processed using 240 mesh activated carbon as much as 7.5% and processed for two times the frying produced the highest quality solid bath soap.

Analysis of Purification Cooking Oil

Analysis of purification cooking oil shows the level of free fatty acids (FFA) of 1.15%, iodine numbers (IV) of 46.61 mEQ, and colors in accordance with the standard of cooking oil quality (SNI 3741-1995). The results indicate that the used cooking oil has been purified and is of good quality.

Process of Saving

The process of saving using 50% NaOH and a temperature of 55 ° C produces solid bath soap with saponification numbers of 201.63, meeting the quality standards of solid bath soap (SNI 06-3532-1994). The results indicate that the solid bath soap produced from used cooking oil is of good quality and meets the quality standards.

Benefits of Utilization of Used Cooking Oil into Solid Bath Soap

Utilization of used cooking oil into solid bath soap provides several benefits:

Environmentally Friendly: Reducing environmental pollution due to the disposal of used cooking oil.
Economical Value: Utilizing waste into a product that is of sale and has the potential to be developed as a business.
Improving Health: Solid bath soap produced from used cooking oil has good quality and is safe to use.

Conclusion

This study shows that used cooking oil can be processed into quality and safe solid bath soap. The development of more efficient technology and processing technology needs to be done to improve the efficiency and quality of solid bath soap products produced from used cooking oil. In addition, socialization needs to be carried out to the public about the importance of rearrangement of used cooking oil and business potential that can be developed.

Recommendations

Based on the results of this study, the following recommendations are made:

Development of More Efficient Technology: The development of more efficient technology and processing technology is needed to improve the efficiency and quality of solid bath soap products produced from used cooking oil.
Socialization: Socialization needs to be carried out to the public about the importance of rearrangement of used cooking oil and business potential that can be developed.
Business Development: The business potential of solid bath soap produced from used cooking oil needs to be developed to create jobs and income for the community.

Future Research Directions

Future research directions include:

Development of More Efficient Technology: The development of more efficient technology and processing technology is needed to improve the efficiency and quality of solid bath soap products produced from used cooking oil.
Analysis of Economic Feasibility: The analysis of economic feasibility of solid bath soap produced from used cooking oil needs to be carried out to determine the potential of the business.
Social Impact: The social impact of solid bath soap produced from used cooking oil needs to be analyzed to determine the potential of the business to create jobs and income for the community.

Q: What is the purpose of this study?

A: The purpose of this study is to examine the potential of used cooking oil collected from households to be converted into safe and quality solid bath soap.

Q: What types of food are used in this study?

A: This study uses used cooking oil with various types of food such as tofu, tempeh, salted fish, and fresh fish.

Q: What is the purification process used in this study?

A: The purification process consists of three stages: removal of seasoning (despicing), filtering using Whatman filter paper number 42, penetration with 15% NaOH, and conjunction using 240 and 280 mesh activated carbon.

Q: What are the benefits of utilizing used cooking oil into solid bath soap?

A: The benefits of utilizing used cooking oil into solid bath soap include reducing environmental pollution, utilizing waste into a product that is of sale and has the potential to be developed as a business, and improving health by producing solid bath soap that is of good quality and safe to use.

Q: What is the quality standard of solid bath soap produced from used cooking oil?

A: The quality standard of solid bath soap produced from used cooking oil is in accordance with the standard of solid bath soap (SNI 06-3532-1994).

Q: What is the saponification number of solid bath soap produced from used cooking oil?

A: The saponification number of solid bath soap produced from used cooking oil is 201.63.

Q: What is the level of free fatty acids (FFA) of used cooking oil?

A: The level of free fatty acids (FFA) of used cooking oil is 1.15%.

Q: What is the iodine number (IV) of used cooking oil?

A: The iodine number (IV) of used cooking oil is 46.61 mEQ.

Q: What is the color of used cooking oil?

A: The color of used cooking oil is in accordance with the standard of cooking oil quality (SNI 3741-1995).

Q: What is the process of saving used cooking oil?

A: The process of saving used cooking oil involves using 50% NaOH and a temperature of 55 ° C to produce solid bath soap with saponification numbers of 201.63.

Q: What are the recommendations of this study?

A: The recommendations of this study include the development of more efficient technology and processing technology, socialization to the public about the importance of rearrangement of used cooking oil and business potential that can be developed, and business development to create jobs and income for the community.

Q: What are the future research directions of this study?

A: The future research directions of this study include the development of more efficient technology and processing technology, analysis of economic feasibility, and social impact.

Q: What is the significance of this study?

A: The significance of this study is to provide a solution to the problem of used cooking oil disposal and to create a business opportunity for the community.

Q: What are the limitations of this study?

A: The limitations of this study include the small sample size and the limited scope of the study.

Q: What are the implications of this study?

A: The implications of this study are that used cooking oil can be processed into quality and safe solid bath soap, and that the development of more efficient technology and processing technology is needed to improve the efficiency and quality of solid bath soap products produced from used cooking oil.