รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2564This research aims to develop Thai herbal formulas for household cleaning products and reduce the use of chemicals by using kaffir lime herbs to extract essential oils by using a method of squeezing from the bark. The result is a dark green essential oil with a pleasant aroma when mixed with liquid hand soap and natural residues such as water extracted from silkworm cocoons to add moisture and lye to remove it. Reduce the use of chemical flavoring agents, the use of coloring chemicals, the use of moisturizing agents, and the use of degreasers. In this research, the formula for hand washing liquid soap using 80 ml. of essential oil from kaffir lime peel is the right amount, resulting in liquid hand soap with a pH value of 7.3, which is the value that is in the standard for mixed liquid soap products. TIS 1403-2551 can inhibit the bacteria Staphylococcus aureus (S.aureus), a bacterium that can cause diarrhea in humans.Rajamangala University of Technology Phra Nakho
