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Research Paper | Biology | Indonesia | Volume 3 Issue 10, October 2014
Activities Test of Ethanol Extract to the three Varieties of Zingiber officinale Rosc Rhizomes to Coptotermes curvignathus Holmgren
Achmad Djunaedy | Sukardiman | Aty Widyawaruyanti
Abstract: Zingiber officinale Rosc rhizomes, is one of the plants from Zingiberaceae Familia which is contains terpenoids and have enough toxics to control Coptotermes curvignathus Holmgren. Besides from Zingiberaceae Familia it also known can control Sitophilus zeamais Motschulsky and Tribolium castaneum (Herbst) adult effectively. The activities test of ethanol extract to the 3 varieties of Zingiber officinale rhizomes to Coptotermes curvignatus Holmgren as a result IC50 from the smallest to the largest continually Zingiber officinale var rubrum IC50 160 g mL-1, Zingiber officinale var amarum IC50 1659 g mL-1Zingiber officinale var officinarum IC50 4210 mL-1. Toxicity test of Coptotermes curvignatus Holmgren was using JIS K571 method which has already modified. Fractination from selected ethanol extract Zingiber officinale var rubrum rhizome were used eluen n-hexane and ethyl acetate with ratio 10: 0, 9: 1, 8: 2, 7: 3, 6: 4, 5: 5, 4: 6, 3: 7, 2: 8, 1: 9, 0: 10 continually. The results of fractions activity proved that the most effective fraction as Coptotermes curvignatus controller is n-hexane and ethyl acetate fraction (6: 4) with IC50 2.45g mL-1.
Keywords: Zingiber officinale, Coptotermes curvignatus, activity
Edition: Volume 3 Issue 10, October 2014,
Pages: 795 - 796
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