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  1. ESTERIFICATION FATTY ACID IN PALM SLUDGE OIL WITH METHANOL AND A CATALYST KAOLINITE IMPREGNATED WITH AlCl3 (Ismail Astar, Nelly Wahyuni, Thamrin Usman*)
  2. ESTERIFICATION OF CITRONELLOL WITH PROPIONIC ACID USING ALUM CATALYST (Indra Johansyah Alam, Endah Sayekti, Thamrin Usman*)
  3. THE EFFECT OF DURIAN’S SEED OIL EXTRACT TOWARD TRANSEPIDERMAL WATER LOSS (TEWL) OF HUMAN SKIN (Sana, Indri Kusharyanti, Thamrin Usman*)
  4. THE ESTERIFICATION OF FATTY ACID TOWARDS USELESS CRUDE PALM OIL WITH METHANOL AND AlCl3 CATALYST (Dewi Hermawati, Nelly Wahyuni, Thamrin Usman*)
  5. ESTERIFICATION OF FATTY ACID SLUDGE PALM OIL BY USING ALUM CATALYST (Romi Advant, Lucy Arianie, Thamrin Usman*)
  6. ESTERIFICATION OF FREE FATTY ACID FROM CRUDE PALM OIL WASTE BY ETHANOL THROUGH P-TOLUEN SULFONIC ACID CATALIST (Fahrianto, Andi Hairil Alimuddin, Thamrin Usman*)
  7. DIRECT TRANSESTERIFICATION OF Jatropha curcas L. SEED WITH METHANOL AND ETHANOL USING EMPTY PALM BUNCH ASH CATALYST(Agus Kurniawan, Harlia, Thamrin Usman*)
  8. SYNTHESIS METHYL ESTERS OF KEMANDAH SEED OIL (Croton tiglium L.) (Adhitiyawarman, M. Agus Wibowo, Thamrin Usman*)
  9. SYNTHESIS OF EUGENYL ACETIC ACID WITH ASH PALM EMPTY BUNCH CATALYST (Heri Susanto, Lucy Arianie, Thamrin Usman*)

Research Prof.Dr. Thamrin Usman DEA – www.thamrinusman.com

One comment

  1. Namira Hairunisa

    saya terinspirasi dg bapak. hebat. (y)

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