Eti Meirina Brahmana
Program Stusi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pasir Pangaraian

Published : 11 Documents
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Bioaktivitas Antibakteri Lamun Thalassia hemprichii dan Enhalus acoroides

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Publisher : Universitas Andalas

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Abstract

The objective of present study was to identify bioactivity of antibacterial Indonesian Seagrass Thalassia hemprichii dan Enhalus acoroides from Karang Tirta Beach, Padang City, West Sumatera. This is a preliminary research for a new alternative antibiotic from Seagrass in Indonesia. In this study the seagrass was examined by a maceration process and using the rotary evaporator to obtain viscous extract. The material for the bioactivity testing was performed upon several intended bacteria such as Escherichia coli, Stapillococcus aureus, and Bacillus subtilis. The bioactivity testing was performed by using the method of resazurin and MIC (Minimum Inhibitory Concentration), which is determined by looking at well blue-colored at the smallest concentration. The result revealed that the best antibacterial bioactivity of Thalassia hemprichii extract was a total of 62.50 μg/mL N-hexane solvent against Escherichia coli and Stapillococcus aureus bacteria. While the best antibacterial bioactivity of Enhalus acoroides extract is 15.62 μg/mL of N-hexane solvent against Stapillococcus aureus.

SINTESIS DAN UJI ANTIBAKTERI SENYAWA (E)-1-(2-KLOROFENIL)-3-PTOLILPROP- 2-EN-1-ON

Jurnal Edu Research Vol 4, No 2 (2015): Jurnal Pendidikan
Publisher : Universitas Pasir Pengaraian

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Abstract

Halogen substituted analogoues compounds chalcone, (E)-1-(2-chlorophenyl)-3-p-tolylprop-2-en-1-on, were synthesized from 4-isopropyl benzaldehyde as aldehydes with 2-chloroacetophenone as ketones by using aldol condensation reaction. The compound resulted rendement with value of 60,08% and characterized by using UV, IR, MS, and 1HNMR. Test of antibacterial activity using agar diffusion method showed that the compound (E)-1-(2-chlorophenyl)-3-p-tolylprop-2-en-1-on potentialas an antibacterial

STUDI ETNOBOTANI TUMBUHAN OBAT DI KECAMATAN RAMBAH SAMO KABUPATEN ROKAN HULU

Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi Vol 1, No 1 (2015): Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi
Publisher : Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi

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Abstract

Purpose of this study as to determine the species of plants used as traditional medicine, parts used and the efficacy of the plants by district community Rambah Samo. This study was conducted from November 2014 until January 2015. This study is qualitative with interview and survey technique. The result found 21 family from 38 species of plants are used as traditional medicine. Parts used in the form of leaves, rhizomes, roots, whole plant, stem, fruit and sap. How to use is by boiling, drops and engulfed. The most commonly treated diseases are blood sugar disease and cough.

ANALISIS MOTIVASI BELAJAR BIOLOGI SISWA KELAS VIII MTs SEJAHTERA BERSAMA RAMBAH SAMO TAHUN PEMBELAJARAN 2014/2015

Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi Vol 1, No 1 (2015): Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi
Publisher : Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi

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Abstract

Study about analysis of student motivation learning on biology class VIII Student of MTs Sejahtera BersamaRambah Samo Prosperity Learning on Year 2014/2015 has been conducted in December 2014 to January 2015with a descriptive qualitative method. Sample was collected by using total sampling technique. Results showedthat the analysis of the eight indicators in this study showed an average percentage of 73% with the high category

PERAN KEPALA SEKOLAH DALAM MENINGKATKAN KUALITAS KINERJA GURU DI MTs SE KECAMATAN RAMBAH KABUPATEN ROKAN HULU

Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi Vol 1, No 1 (2015): Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi
Publisher : Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi

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Abstract

The aim of this study was analyzing the headmaster’s roles in increasing the quality of teaches performace in MTs in sub-district Rambah, Rokan Hulu regency. This study has been conducted on Desember 2014 to January 2015. The samples were 3 headmasters. The research instruments are using inquiry method and analyzing descriptively. Result showed 71.3% of the headmasters’ roles in increasing the quality of teachers’ performance in MTs especially in sub-district Rambah, Rokan Hulu regency. It can be concluded that the roles of headmasters in improving teachers performance quality at MTs in sub-district Rambah, Rokan Hulu regency was in good category.

JENIS – JENIS IKAN SALAI YANG DI PERDAGANGKAN DI PASAR DALU-DALU KABUPATEN ROKAN HULU PROVINSI RIAU

Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi Vol 1, No 1 (2015): Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi
Publisher : Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi

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Abstract

Smoked fish is one of the pontential of superior products that are processed through pengasapan Indonesia and drying. This research has been carried out by the method of survey in December 2014 Market Dalu-dalu Kabupaten Rokan Hulu Riau Province. The resesrch aims is to spesies fish that arbitrage in Market Dalu-dalu. Fish that serve smoked fish traded found 10 types of fresh fish, namely: Barau ( Hampala macrolepidota), Baung (Mystus nemerus), gabus (Channa striata), lele jumbo (clarias gariepi ofnus), lele lokal (Claris batrachus), mas (Cyprinus carpio), motan (Thynnichthys polylepis), paten (Pangasius pangasius), selais (Ompok hypophthalmus), and tapah (Wallago leeri).

JENIS-JENIS BURUNG (AVES) YANG DIPERDAGANGKAN DI KAWASAN KAMPUNG PADANG KABUPATEN ROKAN HULU

Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi Vol 1, No 1 (2015): Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi
Publisher : Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi

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Abstract

Study about species of bird wich are traded in Rokan Hulu regency especially in Kampung Padang has been done in December 2014 with survey method. Samples were found than identified and described by using the reference guide book. Result showed 3 order, 11 families and 19 species of birds wich are traded in Rokan Hulu regency especially in Kampung Padang. The most traded is Passeriformes.

MINAT BELAJAR SISWA KELAS VIII TERHADAP MATA PELAJARAN IPA DI MTs. PP. HASANATUL BAROKAH TAMBUSAI TIMUR TAHUN PEMBELAJARAN 2014 / 2015

Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi Vol 1, No 1 (2015): Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi
Publisher : Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi

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Abstract

The aim study of this was to know the student learning interest in class VIII to IPA subjects. This is a descriptivestudy. Samples were collected with random sampling techniques. Based on research and analysis that has beendone we can conclude that interest students class learning VIII MTs. PP. Hasanatul Barokah Tambusai Timurat 78% with high criteria.

ANALISIS KOMPETENSI PEDAGOGIK GURU DALAM PEMBELAJARAN IPA TERPADU SMP KELAS IX SE KECAMATAN PAGARAN TAPAH DARUSSALAM KABUPATEN ROKAN HULU TAHUN PEMBELAJARAN 2014/2015

Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi Vol 1, No 1 (2015): Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi
Publisher : Jurnal Ilmiah Mahasiswa FKIP Prodi Biologi

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Abstract

The aims of this study was to know the ability of teachers in the implementation of learning pedagogical Integrated Science is Junior High Class IX se District of Pagaran Tapah Darussalam Rokan Hulu Learning Year 2014/2015. This research is a descriptive study. Samples taken from the entire population of 5 teacher. The sampling technique in this paper is saturated sample is a sampling technique when all the population is used as a sample. Result showed the ability of teacher in junior class IX District of Pagaran Tapah Darussalam Rokan Hulu is good perfomed with ability pedagogical value 81.86%

Developing biochemical teaching material based on research results of amino acid compound identification of seaweed (Dictyota patens) in the Segara beach Sanur

Jurnal Pendidikan Biologi Indonesia Vol 3, No 2 (2017): JULY
Publisher : University of Muhammadiyah Malang

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Abstract

This study aims to identify the content of amino acids in seaweed (Dictyota patens) in Segara Sanur Beach which then developing teaching materials based on the results obtained. The method used to test the amino acids was HPLC, meanwhile the data collection has been done by employing questionnaires. The normality test was measured by using normality test, besides the homogeneity test and Paired Sample Test were also used to analyze the homogeneity and significant difference of the data gained. The development of teaching materials has been conducted through several stages namely: needs analysis, design of teaching materials, development of teaching materials, validation of teaching materials by experts, and experiments of teaching materials. The amino acid contents were done by using HPLC. The amino acids contained (% w/w) in the seaweed are aspartic acid (0.36), glutamate acid (0.57), serine (0.20), histidine (0.06), glycine (0.25), threonine (0.17), arginine (0.59), alanine (0.08), tyrosine (0.02), methionine (0.12), valine (0.22), phenylalanine (0.14), Isoleucine (0.16), leucine (0.33) and lysine (0.93). While in the development of teaching materials there is an increase in student learning outcomes by 0.28 with good criteria and there is a significant difference in students learning outcomes between the experimental class and control. Student response is 82.07% which means very strong toward the use of teaching materials.