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All Journal PROSIDING SEMINAR KIMIA Jurnal Kimia Mulawarman Jurnal Medika Veterinaria
Erwin -
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Immunology & microbiology Medicine & Pharmacology Veterinary

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Journal : Jurnal Kimia Mulawarman

 1 
Uji Fitokimia, Toksisitas Serta Antioksidan Ekstrak Propolis Pembungkus Madu Lebah Trigona Incisa Dengan Metode 2,2-Diphenyl-1-Picrylhidrazyl (Dpph) Aswin Thamrin; Erwin -; Syafrizal -
JURNAL KIMIA MULAWARMAN Vol 14 No 1 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Phytochemical test, test the mortality of larvae shrimp (Brine Shrimp Lethality Test) and test the antioxidant activity of secondary metabolites extract of propolis Trigona Incisa been done. Based on the test results of phytochemical screening of secondary metabolites contained in propolis extracts showed that the crude extract contains phenolic compounds and alkaloids. Ethanol fraction containing alkaloids and phenolic compounds. Ethyl acetate fraction containing alkaloid compounds. Mortality of shrimp larvae test performed to determine the toxicity values propolis extract obtained values of 50% Lethal Concentration (LC50) at 249.6079 ppm for ethanol fraction as the most active fraction. Based on the test of antioxidant activity with DPPH values obtained Inhibition Concentration 50% (IC50) in the crude extract of 139.47 ppm ethanol, ethanol fraction at 109.44 ppm, 91.42 ppm ethyl acetate fraction and vitamin C amounted to 59.44 ppm , It can be stated that the most active fraction is the fraction of ethyl acetate with IC50 value of 91.42 ppm..
BIOAKTIVITAS DAN KANDUNGAN GENUS Callicarpa Erwin -
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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allicarpa L is one genus of the family Lamiaceae. Callicarpa consisting of approximately 150 species such as shrubs and trees. Various species of Callicarpa is widely used in traditional medicine and it was potentially as antinociceptive, antioxidant, antimicrobial and thrombolytic drugs. Based on various reports results of previous studies have found various types of secondary metabolites from plants Callicarpa such as terpenoids, steroids and flavonoids. Some of these compounds can be developed as an anti A. aegypti mosquito, Anopheles stephensi, and natural pesticides.
PEMBUATAN BIOETANOL MELALUI FERMENTASI NIRA TEBU (Saccharum officinarum) MENGGUNAKAN Saccharomyces cerevisiae DENGAN PENAMBAHAN VITAMIN B KOMPLEKS SEBAGAI NUTRISI FERMENTASI Wahyu Budi Utama; Rudi Kartika; Erwin -
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Bioethanol is alternative energy produced from the fermentation of carbohydrates like sugar cane juice. The fermentation process is influenced by several factors like nutrition of fermentation. This research to determine the addition weigh (g) of vitamin B complex gr and time of fermentation as theoptimumconditions of fermentaced toproduceethanol with high concentrations. Sugar cane juice as raw material fermented using Saccharomyces cereviceaea with variation additional of vitamin B complex are 0%; 0.1%; 0.2%; and 0.3% (w/v) sugar cane juice fermented during time of fermentation with the variation are 6 day, 7 day and 8 day. Purification of bioethanol by process of distillation.Alcohol content analysis using gas chromatography. The results showed optimumconditions of fermentaced are addition of Vitamin B complex is 0.1% (w/v) and time of fermentation is 7 days to produced ethanol 30.177%.
Co-Authors Amiruddin - Aswin Thamrin Ela Sesdapepi Hadi Hayatul Hamidah Makrina Tindangen Maradona - Nuzul Asmilia Rudi Kartika, Rudi Syafrizal - Wahyu Budi Utama Zuraida -