Synthesis and Characterization of Frankincense Scented Castor Oil Body Soap
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Date
2023-09
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Addis Ababa University
Abstract
Scented body soap is a type of soap that has been infused with fragrance or essential oils. This gives the soap a pleasant smell that can last for hours after bathing. Scented body soap is available in a wide variety of scents, so there is something to suit everyone's taste. In this thesis work the extraction of oil from castor seeds and infusion of frankincense and their utilization to produce soap has been conducted. The soap has been produced from castor seeds by using pre-treatment of castor seed, extraction of castor oil, neutralization and saponification methods. The extraction and refining of castor oil using stage wise equipment is carry out. In this project, the castor seed oil was extracted at a temperature of 80 and a time of 5 hr. by screw press. And the oil yield of 35% was obtained. Frankincense scented castor oil body soap was synthesized using the cold process method. The soap was characterized using Fourier transform infrared (FTIR) spectroscopy, which revealed the presence of functional groups indicative of fatty acids, esters, alcohols, methyl groups, and aromatic compounds. The soap was also evaluated for its lathering ability and moisturizing properties. The soap was found to be soft, have a good lathering ability, and be moisturizing. The saponification parameters used were temperature in the range of 85 to 90 oC, water to lye ratio in the range of 1.5 to 2 hr. and castor oil volume in the range of 5 to 10ml. The optimized conditions were at a temperature of 85 oC, water to lye ratio of 1.75 and a volume of castor 10ml.stable lather, fluffy lather, and moisturizing optimized. The FTIR spectrum of the soap showed peaks at 1745.6 cm−1, 2852.6 cm−1, and 2921.8 cm−1, 719.8 cm−1 which are indicative of the presence of carbonyl (C=O) groups, methyl (CH3) groups, and aromatic (C=C) groups, respectively. The presence of these functional groups is consistent with the expected composition of the soap, which is made with castor oil, frankincense essential oil, and sodium hydroxide. The optimized stable lather, fluffy lather and moisturizing, value found in the entire batch studied were 3.2, 9.7, 6.9, 9.99 respectively. The moisturizing properties of the soap were evaluated by measuring the skin moisture content of participants before and after using the soap. The results showed that the soap significantly increased the skin moisture content of the participants. Overall, the frankincense scented castor oil body soap was found to have good physical and chemical properties. It is a soft, lathering, and moisturizing soap. The soap is also made with natural ingredients, including frankincense essential oil, which is known for its many therapeutic benefits.
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Keywords
Castor seed, Castor oil, frankincense, moisturizing