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Jurnal Biologi Edukasi
ISSN : 20856725     EISSN : 25021532     DOI : -
Jurnal Biologi Edukasi (J.BioEd) contains the results of biology and biology education research from many educational institutions in Indonesia. It published twice a year in June and December.
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Articles 169 Documents
POTENSI BAKTERI KITINOLITIK SUMBER AIR PANAS SEBAGAI PENGENDALI HAYATI LARVA Aedes aegypti L. Ardani, Fitria; Yasmin, Yekki; Fitri, Lenni
Jurnal Biologi Edukasi Vol 4, No 2 (2012): Jurnal Biologi Edukasi
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Abstract

The purpose of this study was to discover the potential of isolate chitinolitic bacteria, hot springs, as biological control of Aedes aegypti L. larva. This research used Completed Randomized Designed (RAL) factorial with two factor, isolate types and concentration of isolatechitinolitic bacteria. The research procedure includes the maintenances of Aedes aegypti L. larva, isolation and selection of chitinolitic bacteria, and biological test. Data were processed by using Varian Analysis (ANAVA). The result of this study indicated that four isolates were test on larva of Aedes aegypti L. masquito, instar II. Giving different isolat chitinolitic bacteria and concentration showed no significant differences in larva death (P 0,05). The highest average of larva death was exhibited at the treatments of 1% of IS 2 and IS 3 isolate. The occurance of chitinolitic bacteria influenced the growth of pupa, it can be showed that the pupa was not formed from each consentration and isolate that caused the death in larva signed by the part of body and larva siphon were pale and digestive tract was dark.
Koefisien Pertumbuhan dan Panjang Infinity Geliona Erosa di Kawasan Ekosistem Mangrove Pesisir Barat Kabupaten Aceh Besar S, M. Ali
Jurnal Biologi Edukasi Vol 2, No 3 (2010): Jurnal Biologi Edukasi
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Mangrove oyster G. erosa undergo a process of growth and development. The process of growth occuring in this oyster of which is the length, width and weight. The process occurs since the ongoing growth process of conception until adulthood. The aim study is to determine (1) growth coefficient G. erosa, and (2) the length of infinity that can be achieved by the mangrove clam G. erosa in the area of the West Coast of Aceh Besar district. The study was divided into three locations, and observation was conducted in June-August 2009. In each set of four plots in each sample sampling size 10m x 10m and in each plot established 10 subplots each measuring 50cm x 50cm. All samples sampling subplots were damaged and done filtering to obtain G. erosa. The main result was the growth coefficient of mangrove oysters G. erosa in the western coastal area of Aceh Besar district was 0,230 mm, and length of infinity that can be achieved was 84.58 mm. Mangrove oyster G. erosa living in the mangrove ecosystem of the West Coast region of West Aceh Besar district, may reach a length of up to 84.58 mm.
Improving Scientific Generic Skills Through Implementation of Model SSCS (Search, Solve, Create, and Share) in Concept of Classification of Living Things in MTsN Model Banda Aceh Febriyanty, Dewi; Ilyas, Suhrawardi; Nurmaliah, Cut
Jurnal Biologi Edukasi Vol 6, No 2 (2014): Jurnal Biologi Edukasi
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Search, solve, create and share (SSCS) learning model  can help students to evolve some generic skills namely spoken, coorporation, and problem solving skills. Those skills are the aspects of assessment to evaluate the achievement of teaching learning process that implements SSCS models. The study was aimed to determine the increase in student achievement, scientific generic skills, and correlation between the skills and the learning outcomes  of students of class VII of MTsN Model Banda Aceh in 2013 in concept of classification of living things  throught implementing SSCS model. The study used experimental method with randomized control group pretest - posttest design . The study used two classes experimental-group and control-group classes chosen according to pretest scores. Data was collected pretest, posttest and scientific generic assessment The results showed that the value of tcount ttable  (5,8 1,6). This indicated that there was a significant increase in students learning outcome. The value of t-count of communication aspect (1),  coorporation aspect (2,7), and problem solving skills (3,4). The correlation among  communication , cooperation  and problem solving skills was high ( r = 0,7).  Therefore it can be concluded that there were increases in student achievement and scientific generic skills and correlation between scientific generic skills and cognitive student learning outcomes except communication aspect.
THE EFFECT OF LOW LEVEL OF OZONE ON GROWTH AND DEVELOPMENT OF RHIZOPUS SP. IN VITRO Oktarina, Hartati; Singleton, Ian; Anthony-Babu, Sanjay
Jurnal Biologi Edukasi Vol 4, No 1 (2012): Jurnal Biologi Edukasi
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Postharvest diseases caused by microbial pathogens account for a great loss every year. Fungicides have been used for decade to control spoilage in conventional agriculture. It is generally known that long term use of chemical would harm the environment and bring resistance to organisms. Increasing public concern over the use of conventional fungicide due to health issues has prompted investigations to find alternative environmentally friendly control agent that might be used to suppress diseases development in storage.Ozone has been considered by researchers as an effective alternative to the use of traditional pesticides in food preservation because it leaves no residue on fresh produce so that safer to consumed.This work determined the effect of low level ozone exposure (180 ppb) on colony development and spores production of Rhizopus oryzae, R. stolonifer and R. microsporus var.chinensis in vitro. Two types of inocula were used, mycelial and spore, as both are responsible for spread of spoilage when stored with uncontaminated food. The tested fungi were stored in an ozone chamber at 7-8 oC for 14 days. Colony development was studied by measuring the colony diameter while spores production by time fungi was assed on the 14th day of the incubation period. Ozone exposure at 180 ppb has varied result on colony development and spore production on each species examined.Overall the work suggests that continuous low level of ozone exposure at 180 ppb for 14 days has different effect on different species depend on the ability each microorganism to counteract with ozone exposure.
Profile of Inquiry Ability of Yogyakarta Junior High School Student in Biology Science Learning Widowati, Asri; Hidayati, Sukarni
Jurnal Biologi Edukasi Vol 10, No 2 (2018): Jurnal Biologi Edukasi
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Inquiry in science-Biology learning is very important for junior high school students because by inquiry, science learning can be oriented to processes and products. This study aims to: determine the achievement of the ability of  junior high school students in learning science-biology. This study uses descriptive research method to describe the inquiring ability of students based on the actual condition during research. The research subjects were junior high school students of class VII and VIII. The research instrument used was a test to measure the ability of individuals, the observation sheet in order to measure the inquiring ability of students, and a questionnaire as supporting data. Data were analyzed descriptively. The results of the study shown the achievement of students' abilities in general for each inquiring aspect of the students which is still in a fairly good category. Most students ( 60%) have the ability to record the observations result and the ability to make questions well. The achievement of students’ inquiring ability have not been optimum because the teacher experiences obstacles, as follow: giving treatment to emerge symptoms, finding specific symptoms of objects, finding problems, formulating problems, finding relationships among natural phenomena, tracking answers to problems based on observed symptoms, organizing data, analyzig data, interpreting data, finding and formulating problems to be applied in learning, and designing inquiry learning strategies.
Struktur Komunitas Hymenoptera Parasitoid Pada Ekosistem Sayuran dan Vegetasi Non-Crop di Sumatera Barat Yaherwandi, Yaherwandi
Jurnal Biologi Edukasi Vol 2, No 2 (2010): Jurnal Biologi Edukasi
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Abstract

Hymenoptera parasitoids have an important role in agroecosystem because of their ability in suppressing pest population. Their presences in the field are seen as the key to agricultural ecosystem. Their presence can be influenced by the availability of non-crop vegetation. Some adult Hymenoptera parasitoids require food in the form of pollen and nectar of wild flowers to ensure effective reproduction and longevity. The objective of this research is to study Hymenoptera parasitoid communities in vegetable field and non-crop vegetation at Alahan Panjang and Kayu tanduak agricultural landscapes. Insects were sampled by two trapping techniques (farmcop and sweep net) in one lines of transect for each landscape. Total of 62species from 19 families of Hymenoptera parasitoid were collected invegetable field and  non-crop vegetation at Alahan Panjang and Kayu Tanduak landscape. Landscape structure affected the species richness, diversity and evenness of Hymenoptera parasitoid invegetable field and  non-crop vegetation.
KUALITAS AIR SUMUR DI KAWASAN PEMUKIMAN MAHASISWA BERDASARKAN UJI BAKTERIOLOGIS DENGAN BIOINDIKATOR BAKTERI Escherichia coli Iswadi, Iswadi; Hasanuddin, Hasanuddin
Jurnal Biologi Edukasi Vol 5, No 2 (2013): Jurnal Biologi Edukasi
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Kualitas air tidak hanya ditentukan dari sifat fisiknya saja, tetapi juga kandungan mikroorganisme penyebab penyakit (patogen) dan zat kimia yang merusak kesehatan. Mikroorganisme sebagai indikator kualitas air adalah coli fecal dan coli non-fecal. Penelitian ini bertujuan untuk mengetahui kualitas air sumur berdasarkan uji ada tidaknya Escherichia coli. Sampel terdiri dari 10 sumur, dengan rincian 5 sampel sumur di Kopelma Darussalam (Lampoh U) dan 5 sampel sumur di Desa Rukoh. Penelitian dilakukan secara kuantitatif dengan MPN seri lima tabung. Adapun tahapan pengujian yaitu presumptive test (uji dugaan), confirmed test (uji penguat), dan completed test (uji kesempurnaan). Hasil pengujian menunjukkan indeks MPN coliform yang diperoleh dari ke-sepuluh sampel air sumur tidak memenuhi standar mutu Kementerian Kesehatan yang tertuang dalam Permenkes No.907/Menkes/SK/VII/2002, yaitu 3 koloni per 100 mL. Bakteri coliform yang mengkontaminasi air sumur di lokasi penelitian adalah Escherichia coli dengan katagori  tercemar berat.
Gambaran Diferensiasi Sel Darah Putih Tikus (Ratitus norvegicus) Betina Pada Starvasi Safrida, Safrida
Jurnal Biologi Edukasi Vol 2, No 2 (2010): Jurnal Biologi Edukasi
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Starvation causes food and liquid deficit that needed by body. Percentage differential leukocyte count includes neutrophil, eosinophil, basophil, limphosit and monosit will give indication towards infection reaction. The aim of this research is to detect influence starvation of the description differential leukocyte count in adult female rat during certain range of time. The experimental method used in this research is Randomized complete design with 3 blocks of treatments and 3 times repetition. The block of treatments are control (K), fasting eat rats (PMK), fasting drink rats (PMN). The data of percentage differential leukocyte count is analyzed by Analysis of Variance (ANOVA) and then continued by Duncan Multiple Range Test at 95% confidence interval (5% significance level). The result showed that statistically insignificant percentage of limphosit, neutrophil, and monosit in PMK and PMN bloks when compared with control, and basophil was not found. While, treatment PMK and PMN in 18 hours treatment, 42 hours treatment,  and 66 hours treatment increase percentage eosinophil.
Pemanfaatan Getah Pepaya (Carica papaya) sebagai Katalis pada Pembuatan Biodisel dari Minyak Jelantah Syahrial, Syahrial; Sulastri, Sulastri; Mukhlis, Mukhlis; Nazar, Muhammad
Jurnal Biologi Edukasi Vol 2, No 1 (2010): Jurnal Biologi Edukasi
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Penelitian ini bertujuan memanfaatkan getah pepaya (Carica papaya) sebagai katalis pada pembuatan biodisel dari minyak jelantah. Getah pepaya (Carica papaya) diperoleh dari Lembah Seulawah Aceh Besar dan minyak jelantah berasal dari Kentucky Fried Chiken (KFC). Target khusus yang ingin dicapai adalah mendapatkan informasi tentang kemampuan getah papaya (Carica papaya) bertindak sebagai sumber enzim lipase. Hasil penelitian memperlihatkan bahwa getah pepaya (Carica papaya) dapat berfungsi sebagai sumber enzim lipase pada proses transesterifikasi antara minyak jelantah dan 1-butanol. Struktur butil ester ditegaskan oleh spektrum FT-IR pada 1746 cm-1 untuk regang  C=O dan pada 1213,7 cm -1 untuk regang C-O. Meskipun demikian, butil ester yang dihasilkan masih bercampur dengan alkohol dan asam lemak bebas yang ditegaskan adanya puncak pada 3350,5 cm-1 untuk regang –O-H.
Peningkatan Prestasi Belajar Biologi Melalui Pemberdayaan Penalaran Siswa Jailani, Jailani
Jurnal Biologi Edukasi Vol 1, No 1 (2009): Jurnal Biologi Edukasi
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One of the main goal of science education is to support students’ intellegency development. Therefore, in this term, the goal is most of students could be function at logic thinking level. Generally for science learning, logic thinking does not manage directly, planned and intentionally. The lack of students in problem solving and think logically has influenced  students’ achievement. Lower level of students’ thinking process was one of problem resources. Preparation of qulified students could be conducted through problem solving, such as thinking improvement approach, strategy, or method, also any learning technique

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