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All Journal Sainstek Inornatus: Biology Education Journal
Nona Wingti Posangi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Other

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PERTUMBUHAN BAKTERI STAPHYLOCOCCUS AUREUS PADA MEDIA YANG DIEKSPOS DENGAN INFUS DAUN SAMBILOTO (ANDROGRAPHIS PANICULATA) Retnowati, Yuliana; Bialangi, Nurhayati; Posangi, Nona Wingti
Sainstek Vol 6, No 2, 2011
Publisher : Sainstek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7.363 KB)

Abstract

The aim of study was to determine the growth of Staphylococcus aureus on The Medium that Exposed with sambiloto leaf infusion. The study was done at microbiology laboratory, Biology Department, Gorontalo State University. The descriptive method was used, that describes of the effect of sambiloto leaf infusion to S. aureus growth, which refers to the specific growth rate and generation time in bitter leaf infusion concentration variation during the incubation period 72 hours. The results showed that the sambiloto leaf infusion have bacteriostatic effect on S. aureus growth with specific growth rates at concentrations (v/v) of 0%, 25%, 50% and 75% were 0.362, 0.260, 0.169 and 0.974 / h and each of generation time were 1.92, 2.66, 4.09 and 9.29 hours. Keywords: Growth, S. aureus, infusion sambiloto leaf, bacteriostatic effect.
Standardization of science process skills (SPS) assessment instruments in microbiology labs Posangi, Nona Wingti; Hasan, Ani M; Dama, Lilan
Inornatus: Biology Education Journal Vol. 1 No. 1 (2018): Inornatus: Biology Education Journal
Publisher : Univeritas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (573.05 KB) | DOI: 10.30862/inornatus.v1i1.32

Abstract

This study aims to standardize science process skills (SPS) instruments in microbiology labs. This Type research is quantitative descriptive, which focuses on standardizing instruments. The research subjects were students of the Biology Education Department of FMIPA Universitas Negeri Gorontalo who programed microbiology courses. Validation was carried out by three experts. The results showed that the value of validity was 4.95 in aspects of the assessment of items on SPS and 4.85 in aspects of language ass essment. The results of measurements on science process skills of students have obtained an average of 3.00 in trials I and 3.37 in trial II. The reliability of the instrument in the first trial was 0.81 and in the second trial was 0.82. The results of the research obtained indicate that KPS skill instruments are valid and reliable. The instrument can be used to measure student science process skills, especially in microbiology courses. Future research can compile PPP instruments in other subjects.
Co-Authors Hasan, Ani M Lilan Dama Nurhayati Bialangi Yuliana Retnowati