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INDONESIA
JURNAL ATOMIK
Published by Universitas Mulawarman
ISSN : 25490052     EISSN : 25490052     DOI : -
Core Subject : Science, Social, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science
Jurnal Atomik (JA) is published twice a year (March and August) by Department of Chemistry, Faculty of Mathematics and Natural Sciences, Mulawarman University. Jurnal Atomik is a media for graduate students of Department of Chemistry to publish their research articles in Chemistry field including Analytical Chemistry, Inorganic Chemistry, Physical Chemistry, Organic Chemistry, and Biochemistry. The research articles that be submitted to Jurnal Atomik have to be approved by Editorial Board and in accordance with the rules of writing approved by Editor of Jurnal Atomik.
Arjuna Subject : -
Articles 12 Documents
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Search results for , issue "Vol 4 No 1 (2019)" : 12 Documents clear
PHYTOCHEMICAL AND ANTIOXIDANT ACTIVITY TESTS OF RAMBAI WOOD EXTRACT (Baccaurea motlyeana Mull.Arg.) Manik, Rike Dominta Aprianti; Erwin, Erwin; Alimuddin, Alimuddin
JURNAL ATOMIK Vol 4 No 1 (2019)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (771.076 KB)

Abstract

Phytochemical and antioxidant activity tests of crude extract and their fractions on stem of rambai (Baccaurea motleyana Mull.Arg.) were carried out. This research was conducted to determine the antioxidant properties of crude extract, n-hexane fraction, ethyl acetate fraction, and methanol fraction. The phytochemical test was carried out by a color test while the antioxidant activity test was carried out by the DPPH method. Phytochemical test result showed crude extracts containing alkaloids, steroids, flavonoids and phenolic compounds. The n-hexane fraction contains a group of alkaloids and steroids. Ethyl acetate fraction contains steroid, flavonoid and phenolic compounds. The remaining methanol fraction contains triterpenoid and phenolic compounds. Antioxidant activity test result showed that the crude extract, n-hexane fraction, ethyl acetate fraction and the remaining methanol fraction had IC50 values ​​of 127.1032; 58.2275; 32.3562 and 56.4567 ppm, respectively. Based on the result of the antioxidant test, the stem of rambai (Baccaurea motleyana Mull.Arg.) is a plant that has the potential as an antioxidant.
THE PHYTOCHEMICAL TEST AND ANTIOXIDANT ACTIVITY (DPPH METHOD) FROM LEAVES OF BIRIBA (Rollinia mucosa (Jacq.) Baill.) Sumarni, Feni; Saleh, Chairul; Pratiwi, Djihan Ryn
JURNAL ATOMIK Vol 4 No 1 (2019)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (648.36 KB)

Abstract

Phytochemical test and antioxidant activity test of biriba leaves (Rollinia mucosa (Jacq.) Baill.) has been done. Extraction from biriba leaves was carried out using several solvents, namely ethanol, n-hexane and ethyl acetate. From phytochemical test results from leaves of biriba (R. mucosa) containing secondary metabolites namely alkaloids, phenolics, flavonoids and steroids. Based on the results of the antioxidant test using DPPH (1,1-diphenyl-2-picrylhidrazyl) method showed that the crude extract, n-hexane fraction, ethyl acetate fraction and residual ethanol fraction had IC50 values of 159.72; 119.62; 40.12 and 38.35 ppm, respectively. From the results of the antioxidant test it is known that the ethanol fraction of the remaining biriba leaves has the strongest antioxidant activity with IC50 values of 38.35 ppm.

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