PENGARUH UKURAN PARTIKEL TERHADAP KARAKTERISASI DENSITAS AKAR WANGI

Abstract

Vetiver plant is a plant that can be used as essential oil, phytoremediation, Au extraction. This research on vetiver plants was carried out with the aim of finding the highest percentage of the increase in yield density of vetiver plant extracts. The research was carried out at the Bandung State Polytechnic Process Unit Laboratory. The raw materials used come from the city of Garut, West Java, and the sizes are uniformed by 0.5 cm and 1.5 cm. This research was conducted with a ratio of raw material of vetiver and solvent of 1 : 10 (w/v). The solvent used is n-hexane. The operating condition used is an operating temperature of 70⁰C. The time used depends on the length of the cycle required for the operation process. The test method is density measurement using a pycnometer. The temperature used for testing is room temperature 25⁰C – 27⁰C. A number of extract samples were put into a picnometer and weighed using an analytical balance. Based on the results obtained from these conditions, it can be seen that there was an increase in the extract percentage from 0.031% in cycle 1 to 0.975% in cycle 9 at a particle size of 0.5 cm. While the results obtained at a size of 1.5 cm were 0.063% extract in cycle 1 and 1.111% in cycle 9. The highest extract percentage was obtained at a sample size of 0.5 cm in the 9th cycle.