Clay Mask Formulation Combination of Avocado Leaf Extract (Persea americana, Mill) and Lemon Orange (Citrus Limon L.) as Natural Antioxidants. Arie Febrianto Mulyadi (a*), Sukardi (b), Novia Trisna Rahmayanti (c)
Department of Agroindustrial Technology, Faculty of Agricultural Technology, Universitas Brawijaya
Veteran Street, Malang 65145, Indonesia
*arie_febrianto[at]ub.ac.id
Abstract
Indonesia has various types of medicinal plants, one of which is the avocado. Avocado leaves contain chemical components such as saponins, alkaloids, tannins, flavonoids, polyphenols, and quercetin. Lemon juice contains citric acid and is rich in vitamin C. The aims of this study was to determine the effect of different concentration formulations of avocado leaf extract and lemon juice on the physical and chemical characteristics of the mask preparation and to obtain the best formulation and antioxidant activity for the clay mask preparation. The study used a randomized block design (RBD) with 1 factor in the form of a comparison of the concentrations of avocado leaf extract and lemon juice respectively 5:0 gr, 4.5:0.5 gr, 4:1 gr, 3.5:1.5 gr, 3:2 gr, 2.5 :2.5 gr. The results showed that the best clay mask preparation with avocado leaf extract and juice in the clay mask formulation with a comparison of avocado leaf extract with 4 grams and 0 grams of lemon juice obtained yield results of 91.88%, water content of 45.60%, pH of 6.57, the IC50 value of 153.02 ppm which is a weak antioxidant, the dry time is 17 minutes, and the specific gravity of the clay mask is 1.05 g/mL.
