Mapa Institute of TechnologySchool of Chemical Engineering, Chemistry, Biological Engineering and Materials Science Engineering

INDUSTRIAL CHEMISTRY LABORATORY

Lemon-Papaya-Cinnamon Soap

De Guzman, Anne K.Tagalog, ChristianBote, Jairus Lemuel G.Badiola, DenniseGroup 3 CHM144L/B31

Prof. Medarlo De JesusInstructor

INTRODUCTIONThe history of soap dates back to almost six thousand years. Around 2800 B C E, excavations of ancient Babylon revealed cylinders with inscriptions of making soap. Later, in 1500 B C E, records from Egypt revealed how animal and vegetable oils were mixed with alkaline salts to prepare soap.Handmade soap is technically glycerin soap and it differs from industrial soap. In hand soap process method an excess of fat is used to consume the alkali, and in that the glycerin is not harvest out. This supperfatted soap is more skin-friendly than industrial soap.Cold process soap is made by mixing fatty acids and sodium hydroxide (lye) together. Fatty acids used in this method can be almost any oil, such as beef tallow, olive oil or hemp oil. Cold process soap making represents a combination of an art and science. In order to manufacture the product which is mild and skin friendly, cold-process method require exact measurement of lye (sodium hydroxide) and fat amount that forms a chemical reaction called ''saponification'' during which the oils and lye mix and become soap.Hot process soap making is a variation and an interesting take on the cold process method. Unlike cold-process method, hot process method does not require the exact concentration of the lye to perform the process with success. This is the main benefit of this process.Hot process was used in making our modified soap.

MODIFICATIONSOur group decided to modify the original product by adding lemon oil, papaya pulps and grounded cinnamon to the original ingredients. There are several procurable benefits from these added reagents.The soap we made has two flavors on either side. Lemon-Papaya on side and Lemon-Cinnamon on the other. Due to lack of reagents available, the only fatty acid used was stearic acid. Nevertheless, the soap still hardened and the product was successfully prepared.

Lemon-Cinnamon Lemon-PapayaLemon oil is a good remedy for increasing the luster of dull skin. It is astringent and detoxifying in nature, and rejuvenates sagging or tired-looking skin. Its antiseptic properties help in treating pimples and various skin disorders. Lemon is also recommended for reducing excessive oil on the skin.Vitamins C and A are highly concentrated in most papaya fruits, along with beta carotene and an enzyme called papain. The vitamins in papaya are often nourishing for the skin, especially for those withblemishesand scars. The antioxidants in these vitamins purportedly helps wash away dead anddry skincells very quickly, promoting the growth of new, healthy skin. This quick turnover of skin growth typically helps fade scars, heal blemishes, and helps scabbed-over wounds become soft and pliable again more quickly.Powdered cinnamon adds a warm, spicy scent; cinnamon is believed to reduce stress and is used as an astringent and a stimulant in bath products. Cinnamon is also known to help get rid of acne and pimples on the face and body.RESULTSAfter using the product, the tester said that her hands felt smoother and softer. The lemon-cinnamon scent was also very noticeable. She also commented that she felt a slight prick on her small cut.