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Akademický článek

ISOLASI SENYAWA ALKALOID DARI KULIT BATANG Dehaasia lancifolia BL. Ridl

Autor: Hasnirwan Hasnirwan, Dayar Arbain, Harry Abrir Effendy

Publikováno v: Jurnal Riset Kimia, Vol 3, Iss 2 (2015)

ABSTRACT Dehaasia lancifolia plant from family of Lauraceae and base on the phytochemical survey in Malaysia and West Sumatera containing alkaloid compounds. The alkaloid compounds containing in Dehaasia lancifolia BL. Ridl has not been isolated and

Externí odkaz: https://doaj.org/article/1af3388278624440b593c2c0606300dd

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Akademický článek

PREPARASI DAN MODIFIKASI KIMIA STRUKTUR KITOOLIGOSAKARIDA-2,5-ANHIDRO-D-MANNOFURANOSA (KOSAMF) DARI KITOSAN SERTA UJI ANTIBAKTERI TERHADAP Staphylococcus aureus DAN Escherichia coli

Autor: Emil Salim, Hasnirwan, Sanusi Ibrahim, Afrizal

Publikováno v: Jurnal Riset Kimia, Vol 9, Iss 2 (2016)

Kitooligosakarida-2,5-anhidro-D-mannofuranosa (KOSamf) dipersiapkan dengan derajat polimerisasi tertentu melalui reaksi nitrous deaminasi dari kitosan parsial N-deasetilasi. KOSamf kemudian diubah menjadi turunan KOSamf dengan mengkopling gugus aldeh

Externí odkaz: https://doaj.org/article/17992f5d4fab4045b694cfd1f6dea0c2

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Akademický článek

SISTEM BIOFILTRASI AIR RAWA GAMBUT DAN PENGARUH FILTRASI TERHADAP pH, BOD, COD, TSS DAN ASAM HUMAT AIR RAWA GAMBUT DENGAN ADANYA PENAMBAHAN KARBON

Autor: Hasnirwan, Hermansyah Aziz, Rhieka Whulanda

Publikováno v: Jurnal Riset Kimia, Vol 3, Iss 1 (2015)

ABSTRACT The research about bio-filtration of peat water using paddy chaff coated by carbon as filter biomaterial has been conducted. Iodimetry titration method was selected for determination of BOD and COD concentration, while gravimetry method and

Externí odkaz: https://doaj.org/article/34359396ce99419b8a53fffe0272958d

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