S. Rahayu, N. Tania
Flavonoids can be found in every organ of plants and has a role as natural antioxidant. The aim of this research was to investigate the influence of maceration and drying time to the level and the type of flavonoids from some leaves of plants located in Taman Wisata Alam Pangandaran. This research used CRD (Completely Randomized Design) with 2 factorial design. The first factor was soaking time of the plant extract in ethanol 96% for 24 hours and 48 hours, the second was drying time for 14 and 21 days. Sample used were Bungur (Largerstoremia speciosa L.), Mahoni (Swietenia macrophylla), Nyamplung (Calophyllum inophyllum L.), dan Vitex (Vitex pubescens Vahl.) leaves. Qualitative parameter was determined from the change of color of the solution as well quantitatively by spectrophotometer of 415nm. Flavonoid type was then analysed using spectrophotometer at 250-560nm. Qualitative result showed that all plants assessed contain flavonoid in varying level. The type was also ranging between each sample. Quantitative analysis of 2 ways ANOVA showed that maceration and drying were shown significance influence with optimum flavonoid level varying from one plant to another. It can be concluded that all plants tested positively contain flavonoid with different type and immersion as well as drying has significantly affected the quantity of flavonoid result in plants. © Published under licence by IOP Publishing Ltd.
Biology Program, Faculty of Mathematics and Sciences, Universitas Negeri Jakarta, Jakarta, Indonesia; Ornamental Fish Cultivation Research Centre, Ministry of Maritimes Affairs and Forestry, Indonesia
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