EFFECT OF THE PROCESS OF EXTRACTION, FORMULATION AND EVALUATION OF ANTIOXIDANT ACTIVITY OF FACE WASH GEL FROM BITTER MELON (MOMORDICA CHARANTIA L.)
Abstract
Bitter melon (Momordica charanta L.) is commonly used in Vietnam with many benefits related to health and skin care. The study aims to investigate the process of extraction, formulate and evaluate antioxidant activity of face wash gel from bitter melon. Medicinal herbs was extracted by heat reflux method. The extraction parameters were investigated such as solvent (distilled water, ethanol 40%, ethanol 60%), medicinal herbs/solvent ratio (1/9, 1/10, 1/11), extraction temperature (50°C, 60°C, 70°C). The factors affecting the formulation of face wash gel were selected for the survey, including bitter melon extract (5%; 10%; 15%); hydroxyethyl cellulose (1%; 1.2%; 1.4%); cocamidopropyl betaine (1%, 2%, 3%). Then, the face wash gel was evaluated some parameters such as appearance, pH, dirt dispersibility, viscosity, foaming ability and foam stability. The results showed that the extraction process using distilled water as the solvent, medicinal herbs/solvent ratio of 1/10, extraction temperature of 60oC, were determined. The face wash gel formula consists of 10% bitter melon extract; 1.2% hydroxyethyl cellulose; 3% cocamidopropyl betaine. The face wash gel from bitter melon was evaluated antioxidant activity.