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Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal

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Published by Universitas Jenderal Soedirman

ISSN : 08531629 EISSN : 08531629 DOI : -

Core Subject : Science, Agriculture, Social,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

Majalah Ilmiah Biologi Biosfera : A Scientific Journal merupakan peer reviewed jurnal yang diterbitkan oleh Fakultas Biologi Universitas Jenderal Soedirman. Media ini mewadahi hasil-hasil penelitian di bidang biologi tropika yang terbit tiga kali setahun (Januari, Mei, September).

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Articles 9 Documents

Search results for , issue "Vol 37, No 2 (2020)" : 9 Documents clear

Produktivitas Panen Propolis Mentah Lebah Trigona itama Cockerell (Hymenoptera: Apidae) Menggunakan Propolis Trap dan Manipulasi Lingkungan di Riau Avry Pribadi
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Trigona itama is one species of stingless honeybees that produce more propolis than genus Apis and commonly practiced in Riau. Nowadays, the value of raw propolis is very expensive. However, techniques and methods to obtain propolis from T. itama`s were usually conducted by destroying nests that resulted in declining development and caused absconding. The objectives of this study were (1) to know the effectivity of propolis trap on T. itama box hive and (2) to examine the best manipulation technique of vegetation rotations of nectareous, pollen, and resin plants to stimulate the formation of raw propolis. Factorial Randomized Completly Design with two factors (the type of box and nectareous plant rotation schedule) was used as experimental design. Results showed that there was no significant interaction between the rotation techniques of nectareous plants and the type of propolis traps on raw propolis production. Also, by using strimin wire either on the side or on the top of box hive as propolis trap had significant value (37.20 ± 1.38 gram and 34.97±0.80 gram respectively) compared to plastic mica either on the side or top side (14.77 ± 0.16 and 12.80 ± 0.64 gram respectively). Yet, there is no significant effect of nectareous plants` (Shorea sp.) duration on the production of raw propolis.

Biodiversitas Vegetasi Mangrove di Kecamatan Concong Kabupaten Indragiri Hilir Provinsi Riau Wirdati Irma; Any Tri Atmaja; Muh. Aris Marfa’i
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Mangrove ecosystems have a vital role in environmental sustainability, especially in coastal areas. It is necessary to calculate the biodiversity of mangrove vegetation in Concong District, Indragiri Hilir Regency. The aim is to find out the types and levels of biodiversity of mangrove vegetation in Concong District, Indragiri Hilir Regency, Riau Province. The method used in the survey is the transect plot. The research sample was taken from 5 (five) villages and 1 (one) village in Concong District. Each village and village were made of 2 transects. Each transect is made of 3 plots. The plot size used is 20x20 meters at the tree level. The total number of plots was 36 plots. Data were analyzed using the Biodiversity Index using the Shannon Winner formula. The results obtained 14 types of mangrove vegetation into six families, namely Avicenniaceae, Rhizophoraceae, Euphorbiaceae, Arecaceae, Sonneratiaceae, and Meliaceae. Six species out of the 14 total species found in Concong District are dominated by the Rhizophotaceae family. The biodiversity index value obtained from the distribution of mangrove vegetation in five villages and one kelurahan is 2.03. The resulting biodiversity index value indicates the level of biodiversity of mangrove vegetation in Concong District is in the medium category. This condition is possible because there has been damage and exploitation of mangrove vegetation continuously without proper management.

Keanekaragaman Jenis Ikan di Danau Teluk Rasau, Pedamaran Kabupaten Ogan Komering Ilir Provinsi Sumatera Selatan Mohammad Rasyid Ridho; Enggar Patriono
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2020.37.2.1047

The research about Fish Diversity in Teluk Rasau Lake, Pedamaran Ogan Komering Ilir Regency South Sumatera Province conducted in July 2014 and February 2015. The aim of this study were to analyzed diversity and abundance of fish at that area. Samples collected by using purposive sampling method. Result of the study in July 2014 and February 2015 were 18 fish species with diversity index (H’) were 2.81 and 2.91, respectively. Meanwhile, fish diversity and fish abundance in July 2014 were greater than February 2015 which were 99.9% and 763 individu, 99.5% and 120 individu, respectively.

Keragaman Kupu-kupu Pemakan Buah Busuk di Perbatasan Zona Rehabilitasi Taman Nasional Gunung Ciremai Kecamatan Cigugur, Kuningan Trisno Haryanto; Imam Widhiono; Bambang Heru Budianto
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Butterflies can be classified based on their feed sources into a nectar-feeding and frugivorous butterfly. Frugiforus butterflies are very sensitive to environmental changes. Furthermore, they are easy to be observed by using a simple sampling method. The research on the diversity of frugivorous butterflies was carried out in the rehabilitation zone of the Ciremai Mountain National Park (TNGC) Region Cigugur, Kuningan. The purpose of this study was to obtain information about the diversity of frugivorous butterflies in the rehabilitation zone of TNGC Region Cigugur, Kuningan, as an indicator of land fragmentation and improve the management of TNGC in the use of natural resources, especially for research activities. Butterflies were sampled using a survey method with purposive sampling using bait traps with rotten bananas as bait. Research locations were in the frontier of the rehabilitation area, Cigugur, Kuningan, West Java, perpendicular to the forest frontier along 200 m, which is at a distance of 0-50 m, 50-100 m, 100-150 m, and 150-200 m. The results showed that the diversity of frugivorous butterfly was relatively high with the discovery of 11 types of butterflies from 1 family Nymphalidae.

Produksi Biolistrik menggunakan Microbial Fuel Cell (MFC) Lactobacillus bulgaricus dengan Substrat Limbah Tempe dan Tahu Indah Sulistiyawati; Nur Laila Rahayu; Fitria Septiana Purwitaningrum
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

The use of electricity in Indonesia with energy sources from fossils still dominates compared to other energy sources. Of the total power plant capacity in the country today, coal-fired steam power plants (PLTU) still dominate, namely 24,883 MW or 48% of the total domestic generating capacity of 52,231 MW. Fossil as a non-renewable fuel is produced continuously and will certainly run out. Development of renewable alternative energy is needed and the amount is not limited to being a renewable energy source. An alternative renewable energy source that has been developed to produce alternative electrical energy, one of which is a microbial fuel cell (MFC). This study aims to utilize Lactobacillus bulgaricus bacteria to metabolize waste water tofu and tempeh as a substrate in the MFC system to produce electrical energy. Research using tofu waste substrate has been carried out, but the use of tempe waste substrate has never been done, and the use of a mixture of waste substrate is not yet known. Microbial Fuel Cell (MFC) using L. bulgaricus in tofu waste produced a potential voltage with the highest yield of 282 mV and the number of bacterial cells reached 12.4 x 106 CFU / mL at the 5th hour incubation, whereas the mixture of tempeh and tofu waste produces a bioelectric potential of 274 mV at the 3rd hour incubation

Potensi Jus Buah Pepaya (Carica Papaya L.) Mencegah Nefrotoksisitas pada Tikus Wistar yang Terpapar Pb Asetat Devi Etivia Purlinda; Sorta Basar Ida Simanjuntak; Saryono Saryono
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Lead is a heavy metal with hazardous toxicity causing dysfunction, especially the kidneys as excretion organs. Pb pollution in Indonesia is mostly derived from transportation emissions such as Tetraetillead, which can change into trietillead, a free radical that can reduce endogenous enzyme activity, one of which is SOD pollution. (Superoxide dismutase) which is in various organs, especially the kidneys. A decrease in SOD activity in the kidneys indicates oxidative stress because the enzyme is unable against superoxide anions and causes renal glomerular damage. Kidney damage can increase serum creatinine levels. Papaya juice contains flavonoids, vitamins C, E, and beta-carotene can prevent nephrotoxicity of Pb. The study aimed to obtain the best dose of papaya juice on the SOD activity of Wistar rats kidney tissue and serum creatinine level that exposed by lead acetate. The experiment was conducted experimentally with Completely Randomized Design, which was divided into 6 treatments, P1, P2, P3, of papaya juice, Lead ace with dose: 3.6; 7.2; 14.4 g / 200g of weight and exposed to Pb acetate 50 mg/kg weight. Treatment P4 (rats were given vitamin E 400 IU/kg weight and exposure to Pb acetate 50 mg/kg weight), P5 (rat exposed Pb acetate 50 mg/kg weight), P6 (normal mice) for 28 days. The results showed that papaya juice was the best dose of 14.4 g / 200g weight because the SOD activity of renal tissue was increased, and serum creatinine level decreased significantly. The conclusion is papaya juice can be used to prevent Pb acetate nephrotoxicity.

Identifikasi molekuler Bakteri Asam Laktat dari Tempe dan Tape Berdasarkan Sekuen Gen 16S rRNA Sulistiani Sulistiani; Iman Hidayat
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Indonesia has varied of fermented food. However, the discovery of the microbial diversity in the Indonesian traditional fermented food is inadequately conducted. In this study, we determined the lactic acid bacteria (LAB) diversity from tempeh and tape based on the nucleotide sequence of 16S rRNA gene to obtain information on the biodiversity of lactic acid bacteria in tempeh and tape origin Bali Province, and collection of lactic acid bacteria isolates have beneficial for the development of starters, food science, and genetic resources. A total of six samples of tempeh and six samples of tape were collected from Bali province. A viable count method showed that the LAB population in tempeh was 3.8 x 108 – 2.2 x 109 cfu/g and in tape was 4 x 105 - 1.1 x 108 cfu/g. A molecular identification based on the nucleotide sequence of16S rRNA gene determined six LAB species existed in tempeh (Lactobacillus fermentum, L. plantarum, Enterococcus faecalis, E. faecium, Pediococcus pentosaceus, Weissella paramesenteroide) and six species in tape (L. fermentum, L. kunkeei, L. plantarum, L. vini, Leuconostoc mesenteroides, P. pentosaceus, W. paramesenteroides. Physiological characterization showed that all LAB isolates grew on medium containing 3% NaCl at pH 4 and pH 6.5, and at temperatures of 30°C and 45°C. Three isolates of P. pentosaceus (Su-ls21, Su-ls22, Su-ls24) exhibited catalase activity and 17 isolates belong to halotolerant bacteria, which can grow on medium containing 6.5% NaCl.

Penilaian Kondisi Kesehatan Ekosistem Mangrove di Ayau dan Ayau Kepulauan, Kabupaten Raja Ampat Rudhi Pribadi; IW Eka Dharmawan; Aditya Sukma Bahari
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Despite their rather universal distribution in tropical inter-tidal coastal area, mangrove has been identified driven by some physical, chemical and biological factors which might vary one to another site. Muddy waters, sufficient freshwater supply, high tidal inundation were few factors that commonly correlated with an ideal mangrove growth. Ayau Islands, a group of several small islands in the Raja Ampat Islands regency West Papua, however, could be an example of how mangrove was closely interconnected to another tropical coastal ecosystem. The purpose of the study has assessed the health of mangrove ecosystems in Ayau and Ayau Islands. A purposive sampling method was applied for this study, two stations were designated in Kanober Island and one station in Dorekar Island. Three replication sampling plots of 10m x 10m has lied on each station and data were collected following a mangrove monitoring manual. The result showed at least eight major species, two minor species and 23 association of mangrove components were found in the study site. In general the vegetation in a good condition with a high canopy cover.

Pengaruh Konsentrasi Etanol dan Waktu Maserasi terhadap Rendemen, Kadar Total Fenol dan Aktivitas Antioksidan Ekstrak Rumput Laut Padina australis Annisa Permata Sari; Irmanida Batubara; Muhammad Nursid
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 37, No 2 (2020)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2020.37.2.1192

Padina australis seaweed is known to contain active compounds that can be utilized in pharmaceutics and cosmetics. Ethanol concentration and maceration time are thought to affect the concentration of active compounds in the extract. This study aims to determine the effect of ethanol concentration and maceration time on yield, antioxidant activity, and the total phenol content (TPC). Seaweed samples were taken from Binuangeun waters, Lebak-Banten. Extraction was conducted by maceration method using 0, 40, and 80 % (v/v) ethanol for 8, 16, and 24 hours. Antioxidant activity was carried out using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) test, while the TPC was determined by colorimetry method using FolinCiocalteu reagent. The results showed that the highest extract yield was obtained when using 40 % ethanol and 16 hours maceration time, the highest antioxidant activity was obtained when using 80 % ethanol and 24 hours maceration time, while the highest TPC was obtained when using 40 % ethanol and 8 hours maceration time. Based on this research, the best antioxidant activity of extract was obtained when maceration used 80 % ethanol with a 24-hour maceration time.

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