Utilization of black Mao pomace extract in hand cleansing gel product

Abstract

This research aims to study the utilization of black Mao pomace extract by studying the optimal extraction condition from Mao pomace and applying the extract in hand cleansing gel product. The result was showed that the optimal extraction condition was 50% of ethanol and 72  hours extraction time. The extract had total phenolic at 6,005.84 mg gallic acid/100 ml, antioxidant activity at 7,175.11 mg ascorbic acid /100 ml, total anthocyanin at 87.00 mg cyanidin-3-glucoside /100 ml. The inhibition effective of  E. coli, P. aeruginosa, S. aureus and E. hirae  were 7.67, 7.33, 6.50 and 6.50 mm. respectively. From the used of Mao pomace extract developed hand cleansing gel product, it was showed that the optimal amount of the Mao pomace extract was 5%. The product viscosity was 9,388 cP, pH was 5.44 and the color values (L*, C* and ho) were 35.84, 11.98  and 356.33, respectively. The product had total phenolic at 2.70 mg gallic acid/ 100 ml, antioxidant activity at 3.79 mg ascorbic acid/100 ml, anthocyanin at 16.70 mg cyanidin-3-glucoside/100 ml and the inhibition clear zone of E. coli, S. aureus, E. hirae and P. aeruginosa was 8.17, 8.50, 8.50 and 8.50, respectively. Consumer acceptant test showed that the overall liking score was moderately (7.29 from 9-point scale). There were 88% of consumers accepted the developed product and 76% of consumer would like to purchase the product.