Vol. 23 No. 1 (2021)

Articles

• Synthesis of L-Lactic Acid from Fermentation of Cassava Pulp by Using Tempeh Inoculum

  Rossy Choerun Nissa, D. Sumiarsa, W. Kosasih, B. Firdiana, A. H. D. Abdullah

  1-8

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• The Physicochemical Characteristics of Recycled-Plastic Pellets Obtained from Disposable Face Mask Wastes

  V. Saraswaty, R. C. Nissa, B. Firdiana, A. H. D. Abdullah

  16-23

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• Antioxidant Activity, Skin Irritation Potential and Chemical Composition of Clove Leaf Oil from West Java Indonesia

  D. Rahm, R. Yunilawati, I. Setiawat, Irwinanita, B. N. Jati, A. Riyanto, Yemirta, N. N. Aidha

  24-30

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• Annealing Temperatures’ Effects on Microstructure and Optical Properties of Ba0.95Sr0.05TiO3 Films

  Y. Iriani, F. Nurosyid, R. Mayasar, D. K. Sandi

  31-36

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• Study on the Effect of Composition and Variation of Sn/Zn Cooling Media on Nickel Alloy Steel through Hot Forging and Austempering

  S. Herbirowo, M. Harimurti, S. A. Chandra, D. P. Utama, B. Adjiantoro, Y. M. Zulaida

  37-42

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• Identification of Bainite in a Multi-phase Microstructure of an Austempered Steel Alloy: AMetallography Approach

  M. Y. HasbI, F. Citrawati, M. R. Wida’atullah, S. A. Chandra, L. Suhaem

  43-49

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