Vol. 4 No. 1 (2022): Journal of Chemical Natural Resources

This issue has been available online since 15th September 2022 for the regular issue of February 2022. All articles in this issue authored/co-authored by 10 authors from 2 countries (Indonesia and Malaysia)

Published: 2022-12-15

Articles

Synthesis of Sulfated Chitosan Through Sulfation Reaction of Chitosan with Chlorosulfonic Acid in N, N-Dimethylformamide, and Antibacterial Activity Test

Epria R Manik, Jamaran Kaban

1-8
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The Effect of Variation of Latex Mixed Storage Time Polystyrene and Natural Rubber Concentrate Latex on the Stability of the Emulsion by Using Emulsifier Sodium Lauryl Sulfate

Hakimah Osman

9-17
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Isolation and Analysis of Chemical Components of Garlic (Allium sativum L.) Tuber Essential Oil As Well As Antibacterial and Antioxidant Activity Tests

Sabarmin Perangin-angin, Dimas A Pratama

18-27
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Phytochemical of Ethanolic Extract of Cabbage (Brassica oleracea) Collected from Medan, Indonesia

Lela Diyana Br Tarigan, I Nyoman Enrich Lister, Edy Fachrial, Adek Armansyah

28-32
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Calcium Silicate as a Media For Enhancement of Vitamin E Concentration from Candlenut Oil (Aleurites moluccana)

Firman Sebayang, Merais Pana Br Surbakti

33-43
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Study on Utilization of Active Natural Zeolite as Ammonia Absorbent in Aquarium as a Medium Fresh Fish Cultivation

Chairuddin, Roberta Marbun, Jamahir Gulton

44-48
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Characterization of Biodegradable Composites from Polypropylene, Polypropylene Grafted Maleic Anhydride, and Durian Seed Starch

Darwin Yunus Nasution, Rizka Meilia Fitri, Amir Hamzah Siregar

49-58
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Preparation of Crackers by Mixing of Cassava, Carrot, and Protein Isolated from Waste of Ketchup Factory with CaSO4 Ions

Sovia Lenny

59-64
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Effect of Fermentation Time and Weight of Bread Yeast on Bioethanol Content from Glucose Hydrolysis of Cellulose Empty Bunches Palm Oil (Elaesis guineensis Jacq.) with HCl 30%

Rozyanti Rahman

65-71
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Analysis of the Copper (Cu), Chromium (Cr), and Manganese (Mn) Levels from the Steel Industry Liquid Waste by Atomic Absorption Spectrophotometry Method

Zul Alfian, Syarifah Aini, Harry Agusnar

72-76
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