The Dynamic System Economic Simulation Model To Forecast The Inventory Of Laminate Wood Industry Materials: A Case Study At Pt. Cahaya Samtraco Utama

Currently, the wood industry in Indonesia is facing a lot of problems. The most annoying problem which has to be solved immediately is the decreasing quantity of wood resources as well as the imbalance between the demand and supply of forest wood products as a result of the unsynchronized policy of forest management and wood industry development in the past. PT. Cahaya Samtraco Utama is the only laminate wood industry in East Kalimantan Province, Indonesia. The forecasting analysis result for wood industry materials at PT. Cahaya Samtraco Utama seems to continuously decrease. Therefore, to anticipate such a situation, the industry should manage the inventory of materials. Keywords : Dynamic System, Economic, Inventory, Laminating Wood Industry

ANALISIS FITOKIMIA EKSTRAK KAYU EBONI (Diospyros celebica Bakh.)

The purpose of this study was to determine the resistant-termite activity through phytochemical analysis with color test methods and compounds from the extracts of ebony. The results of this study are expected to provide early information about the biological activity of extracts of ebony as a natural anti-termite and the possibility of its utilization as a natural preservative in wood preservation. Ebony (Diospyros celebica Bakh.) have a 1th durable class and 1th strong class. Ebony is the endemic species in Central Sulawesi. The methods of maceration ebony powder, extract ethanol, extraction and fractionation and phytochemical analysis through tests of alkoloid, flavonoid, terpenoid, tannin,  saponin, steroid, carotenoid and  cumarin were applied in this research. The results showed that the extract of ebony contains alkaloids in acetone, n-hexane, ethyl acetate, acetone and methanol. Flavonoid compound was found only in the solvent n - hexane. Tannin compound only on the solvent of ethyl acetate. Saponin compound contained in the acetone and methanol solvents. Steroid compound contained in the acetone and methanol solvents. Carotenoid compound is unfound in all solvents. Carbohydrate compound found only in ethanol. Terpenoids compound found in the acetone and methanol solvents. Cumarin compound contained only in n - hexane.Key words : anti termite, extractive, eboni wood, phytochemical analysis