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All Journal Jurnal Biologi Universitas Andalas
- Nurmiati
Laboratorium Mikrobiologi, Jurusan Biologi, FMIPA, Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Uji Antimikroba Curcuma spp. Terhadap Pertumbuhan Candida albicans, Staphylococcus aureus dan Escherichia coli Rahmi Adila; - Nurmiati; Anthoni Agustien
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

A study about the effect of fresh extract of Curcuma spp on the growth of Candida albicans, Staphylococcus aureus and Escherichia coli was conducted from March to July 2012 at Microbiology Laboratory, Faculty of Sciences Andalas University. This experiment used nested completely randommized design. The result showed that fresh extracts of Curcuma spp. have different growth inhibition effects on C. albicans, S. aureus dan E. Coli. Temulawak (Curcuma xhantorrhiza) has the highest inhibition effect to the growth of C. albicans (13.07 mm), S. aureus (15.75 mm) and E. coli (31.56 mm). The lowest bactericidal consentration of fresh extract rhizome of temulawak for E. coli were 12.5% and 25%, but there is no inhibition effect to the C. albicans and S. aureus.Keywords: Curcuma, antimicrobial, extract, pathogen microbial
Pengaruh Pengaturan Keasaman Media Serbuk Gergaji Terhadap Pertumbuhan dan Produksi Jamur Tiram Cokelat (Pleurotus cystidiosus O.K. Miller.) Ramza Seswati; - Nurmiati; - Periadnadi
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

A study on the effects of sawdust acidity on the growth and production of brown oyster mushroom (Pleurotus cystidiosus O.K. Miller) was conducted from May to August 2012 in the Laboratory of Microbiology, Department of Biology, Faculty of Sciences, Andalas University, Padang. The purpose of this study was to determine the effects of acidity (pH) of sawdust media to the growth and production of the mushrooms. This study used experimental method by Completely Randomized Design (CRD) with five pH level of treatments from 4 to 8 and five replication for each pH. The results of the study showed that pH 8 gave the best growth with vegetative growth periods was 21 days, weight of the fruiting bodies was 32,60 g, and diameter of the fruiting bodies was 7,06 cm.Keywords : acidity, growth and production, Pleurotus cystidiosus, sawdust.
Penapisan dan Karakterisasi Bakteri Amilo-Termofilik dari Sumber Air Panas Semurup, Kerinci, Jambi Wira Hastuti; Anthoni Agustien; - Nurmiati
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

Abstract

The screening and characterization of amylo-thermophylic bacteria that produced amylase from Semurup hot spring in Kerinci, Jambi was conducted from May to July 2012. The aim of this study was to find out the isolate of amylo-thermophylic bacteria and to analyze amylase activities. This study used experimental methods. This study found 31 isolates of amylo-thermophylic bacteria with the amylolytic index more than 2. The isolate SII- 1.7 has the highest enzyme activity. The form of colony was circular margin, smooth shiny surface and pigmentation cream. The bacterium was gram negative, bacilli cell, positive catalase, non-motile, and has proteolytic and amylolytic activities.Keywords: amylolytic, bacterium, characterization, hot spring, thermophylic
Co-Authors Anthoni Agustien Periadnadi Periadnadi Rahmi Adila Ramza Seswati Wira Hastuti