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Browsing Chemical by Author "Teruna, H. Y."

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IDENTIFIKASI DAN UJI AKTIVITAS ANTIOKSIDAN FRAKSI DARI EKSTRAK N-HEKSANA DAUN TUMBUHAN Goniothalamus sesquipedalis

Syainanda, V. K.; Teruna, H. Y.; Jose, C. (2013-06-28)

In Indonesia, Goniothalamus sesquipedalis could be found in Hutan Lindung Bukit Suligi, Rokan Hulu Regency, Riau Province where the leaves of G. sesquipedalis were collected. An antioxidant activity determination of G. ...
IDENTIFIKASI DAN UJI AKTIVITAS TOKSISITAS EKSTRAK n-HEKSANA DARI KULIT BATANG TUMBUHAN Xylopia malayana Hook. f.et Thomson (ANNONACEAE)

Amenda, A.; Teruna, H. Y.; Yuharmen (2014-03-27)

The plant family of Annonaceae spreads out widely in Indonesia. This family is best known for its secondary metabolite resource. Xylopia malayana, a species of Annonaceae can be found in Pekanbaru. The objective of this ...
ISOLASI DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL DARI DAUN TANAMAN Annona squamosa L

Amalia, R.; Teruna, H. Y.; Balatif, N. (2013-03-09)

An investigation on the antioxidant activity of Annona squamosa extract and essential oil has been done using DPPH ( 1,1- diphenyl – 2 – picryl hydrazyl) method. The extract was obtained by macerating the leaves of Annona ...
ISOLASI METABOLIT SEKUNDER DAN UJI TOKSISITAS EKSTRAK METANOL DAUN TANAMAN SRIKAYA (Annona squamosa Linn)

Tripiana, M.; Teruna, H. Y.; Balatif, N. (2013-04-17)

An investigation on the toxicity of srikaya (Annona squamosa ) extract has been done by using the Brine Shrimp Lethality Test (BSLT). The extract was obtained by macerating the leaves of A. squamosa using n-hexane and ...
ISOLASI, UJI AKTIVITAS, DAN AKTIVITAS SPESIFIK ENZIM SELULASE Penicillium sp. LBKURCC27 SEMIMURNI MELALUI PENGENDAPAN (NH 4 ) 2SO 4

Sarip, M.; Nugroho, T. T; Teruna, H. Y. (2014-03-27)

Enzyme activity of cellulase can be concentrated by ammonium sulfate ((NH 4)2SO4) precipitation. The concentration was carried out by adding ((NH4)2SO4) 80% saturated precipitation. The precipitated ...
SINTESIS (E)-3-(4-FLUOROFENIL)-1-(NAFTALEN-1-IL)PROP-2-EN-1-ON DARI 1-ASETILNAFTALEN DAN 4-FLUOROBENZALDEHID

Fitria, D.; Teruna, H. Y.; Jasril (2014-03-27)

Chalcone analogues has been synthesized by aldol condensation using stirring method with a base catalyst (KOH). Starting material that has been used was 1- acetylnaphthalene as ketone and 4-fluorobenzaldehyde as aldehyde. ...

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