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INDONESIA
JURNAL BIOLOGI INDONESIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 08544425     EISSN : 2338834X     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 847 Documents
 1   2   3   4   5 
PENGELOLAAN KANDUNGAN BAHAN ORGANIK PADA LIMBAH CAIR LABORATORIUM PROLINGMSP-IPB DENGAN BERBAGAI KOMBINASI AGEN BIOREMEDIASI Pratiwi, Niken Tunjung Murti; Hariyadi, Sigid; Ayu, Inna Puspa; Apriadi, Tri; Iswantari, Aliati; Wulandari, Dwi Yuni
JURNAL BIOLOGI INDONESIA Vol 15, No 1 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i1.3768

Abstract

ABSTRACT Wastewater from laboratory glassware washing activities contains organic materials. Decomposing bacteria could increase the biomass by utilizing organic matter as a source of carbon. This research was aimed to describe the influence of commercial probiotic application in reducing organic matter content of Proling laboratory wastewater. The research was conducted from February to July 2016 in Aquatic Microbiology Laboratory. The experiment consists of several treatments, those were wastewater (L), wastewater+molase (LM), and wastewater+molase+bacteria from commercial probiotic (LMB). Major parameters observed were COD and bacteria abundance. The results showed that there was significant response difference between molasses and without molasses treatment. Based on COD, the most influenced treatment in decreasing organic matter were LM and LMB. These treatments could decrease COD up to 97% and 91%. Furthermore, the abundance of bacteria in molasses treatment was higher than without molasses. Based on this study, the most effective treatment in reducing organic matter was LMB.  Keywords: bacteria, laboratory wastewater, molasses, organic matter
A NEW INDIGENOUS CYANOMETHANE-DEGRADING BACTERIUM ISOLATED FROM GOLD MINING WASTE WATER Sulistinah, Nunik; Munandar, Hendra; Sunarko, Bambang
JURNAL BIOLOGI INDONESIA Vol 15, No 2 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i2.3807

Abstract

ABSTRACT The gold mining wastewater effluent is potential source for isolating cyanides-degrading bacteria, since cyanide is commonly used in gold extraction process in the mining industry. An indigenous bacterial strain LP3, capable of growing on and utilizing of a high concentration of cyanomethane (up to 1.0 Molar), could be isolated from Cikotok gold mine effluent. Based on 16S rDNA sequence, the strain was identified as Rhodococcus pyridinivorans. During the growth on cyanomethane (CH3CN), ethanamide (CH3ONH2) and ethanoic acid (CH3COOH) were detected in the growth media, indicating that nitrile hydratase and amidase involved in the metabolism of the substrate. The involvement of both enzymes on the conversion of cyanomethane was also proved by our study on cyanomethane biodegradation using whole cells of R. Pyridinivorans LP3. Besides cyanomethane, the R. pyridinivorans LP3 could also utilize various aliphatic, aromatic, heterocyclic nitriles and amides as growth substrates. Base on these results, R. pyridinivorans LP3 is expected to be used as a potential candidate for biological treatment for cyanide-containing wastes, although further research is still needed, before being applied on a field scale.  Keywords: biocatalyst, cyanide degrading bacteria, gold mining, Rhodococcus pyridinivorans LP3
PEMANFAATAN LIMBAH CAIR SAGU UNTUK MEMPRODUKSI SELULOSA BAKTERI Ahmad, Sitti Wirdhana; Yanti, Nur Arfa; Muhiddin, Nurhayani H.
JURNAL BIOLOGI INDONESIA Vol 15, No 1 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i1.3763

Abstract

ABSTRACTBacterial cellulose is an exopolysaccharide produced by bacteria and has a high purity level compared to plant cellulose and has unique structural and mechanical characteristics that can be utilized for various industrial purposes such as food, medical, plastic and paper. This study aims to determine the potential of sago liquid waste as a substrate for producing biocellulose and sugar concentration is required in producing bacterial cellulose from sago liquid waste. Production of bacterial cellulose from sago liquid waste was done with static condition for 14 days with treatment of sugar concentration 5,10,15 and 20% (w/v) using Acetobacter xylinum. Parameters were measured include of thickness, yield, crude fiber content and moisture content. Production of bacterial cellulose using sago liquid waste requires the addition of sugar as much as 10% with a thickness of 21.73 mm, yield of 34.97%, crude fiber of 4.5% and moisture content of 91.35%. Therefore, sago liquid waste is potentially used as a substrate for producing bacterial cellulose.  Keywords :Biocellulose, nata, Acetobacter xylinum, Production substrate  
KAJIAN PENDAHULUAN FLORISTIK DAN FITOSOSIOLOGI POHON DI PULAU SIMEULEU PROVINSI ACEH Sadili, Asep; Royyani, M. F.; Agusta, A.; Afandi, I.; Efendy, O.; Ashari, H.; Keim, A. P.
JURNAL BIOLOGI INDONESIA Vol 15, No 2 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i2.3812

Abstract

ABSTRACTSimeuleu island is located in the western part of Sumatera belonging to Aceh Province. Floristic and phytososiological information of vegetation in Simeuleu island is limited and not much study has been conducted, especialy trees species group (diameter ?10 cm). Two  study plots were used: one hectare at Kuala Makmur forest and one ha at Alafan forest (100 m × 100 m). Density analisys at Kuala Makmur recorded 329 individuals/ha while at Alafan consisted of 377 individuals/ha (average of 353 individuals/ha).  Total basal area at Kuala Makmur 29.48 m2/ha while at Alafan  was 44.28 m2/ha (with an average of 36.88 m2/ha). The Shannon-Wiener diversity index (H?) at Kuala Makmur was 2.94 and at Alafan was 2.73 (whit an average H?of 2.84). The total canopy heights of the two study sites as were relatively similar consisting of four strata. Dominant species occurred at Kula Makmur was Shorea atrinervosa (Importance Value, IV=83.55%) and at Alafan was Dipterocarpus grandiflorus (IV=128.06%). Dominant familly at Kuala Makmur was Dipterocarpaceae and at Alafan was Ebenaceae. The distribution of dominant tree species at Kuala Makmur is less prevalent than at Alafan.  Keywords: Simeuleu, Aceh, trees structure, species richness, lowland forest.
PERTUMBUHAN VEGETATIF TANAMAN TOMAT (LYCOPERSICUM ESCULENTUM MILL.) DARI BENIH LAMA YANG DIINDUKSI KUAT MEDAN MAGNET 0,1 MT, 0,2 MT, DAN 0,3 MT Novitasari, Vina; Agustrina, Rochmah; Irawan, Bambang; Yulianty, Yulianty
JURNAL BIOLOGI INDONESIA Vol 15, No 2 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i2.3816

Abstract

ABSTRACTTomatoes (Lycopersicum esculentum Mill.) horticultural which are very good for consumption as well as industrial materials.  However, the cultivation of tomatoes still faces many obstacles, one of them is the seed.  The quality of old seeds decreases with age of seeds, so that it will affect a crop production.  This study aims to determine whether the magnetic field strength can improve tomato plant vigor.  The study was conducted using a completely randomized design (CRD) of one factor, the induction of a magnetic field consisting of 3 levels, namely 0.1 mT (M0.1), 0.2 mT (M0.2), 0.3 mT (M0,3) for 7 minutes 48 seconds. This study uses two controls;  positive control the new seed (Sn) and negative control was the old seed (So) from not being given a magnetic field treatment each experiment unit is repeated 5 times.  The parameters measured were plant height, chlorophyll content, and carbohydrate content.  The data obtained were analyzed.  If there was a difference between treatments, it was continued with the smallest difference between treatments using the Tukey's test at the 5% level.  The results of the analysis prove that the magnetic field induction of the old seed can increase seed vigor, causing plant height, chlorophyll and carbohydrate content to be the same as plants from new seeds.    Keywords: tomatoes, old seeds, strong magnetic field  
KAJIAN GENETIKA UNTUK KONSERVASI BADAK SUMATERA (DICERORHINUS SUMATRENSIS GLOGER, 1841) Zein, Moch Syamsul Arifin; Fitriana, Yuli Sulistya; Kurniawan, Yuyun; Chaerani, Kurnia; Sirupang, Meriam
JURNAL BIOLOGI INDONESIA Vol 15, No 1 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i1.3767

Abstract

ABSTRACTThe Sumatran rhinoceros is one of the most critically endangered species of large mammals due to habitat loss, fragmentation and illegal hunting so that the population of this species drastically decreased. At present, reproductive problems with a limited population are also a threat and require an appropriate solution. Therefore, data on molecular genetic information is very important as a basis for conservation management in maintaining long-term persistence of this species. Phylogenetic analysis based on sequences of CO1, 12SrRNA, and Cytochrome b gen from mitochondrial DNA genomes using neighbor-joining and genetic distance matrix calculations with the Kimura 2-parameter model (K2P) were implemented in pairwise distance calculations in the Mega (Molecular Evolutionary Genetics Analysis) program version 6.05. The study results show the genetic distance of Sumatran Rhinos from Sumatra and Kalimantan respectively 0.2 ± 0.00%, 0.8 ± 0.4%, and 0%. These results were reconfirmed that the Sumatran Rhino species in Sumatra and Kalimantan were taxonomy is no different. The study of genetic diversity based on D-loop of mitochondrial DNA contained 5 haplotypes, namely haplotypes 1 and 2 originating from the island of Sumatra and haplotypes 3, 4, and 5 originating from the island of Borneo. The genetic distance between individuals in this study ranged from 2.54 ± 1.4%, haplotype diversity (Hd) was 0.8 ± 0.172, nucleotide diversity (Pi) was 0.02269, Fu?s Fs value was 2.523, and Tajima?s test was 0.69497. The positive value (Fu?s Fs and Tajima?s test) indicated low genetic diversity and population expansion in the Sumatran rhino. In the study using 10 microsatellite loci, where the average number of allel/loci in Kalimantan (1.68) was higher than in Sumatra (1.22). Data from this study show that genetic variation between Sumatran rhinoceros from Sumatra and Kalimantan can be used as a basis for alternative that the populations of Sumatra and Borneo be considered as a single management unit.  Keywords: Sumateran  Rhinoceros, Mitochondrial DNA, Microsatellite
Merah dan Pengaruhnya terhadap Biokimia Tanah Pada Percobaan Pot Menggunakan Tanah Ultisol Antonius, Sarjiya; Sahputra, Rozy Dwi; Nuraini, Yulia; Dewi, Tirta Kumala
JURNAL BIOLOGI INDONESIA Vol 14, No 2 (2018): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1258.925 KB) | DOI: 10.14203/jbi.v14i2.3744

Abstract

ABSTRACTUltisol dominated about 25% of the total land area in Indonesia. It has the potential to be used as agricultural land and shallot plants have a considerable prospect to be cultivated in ultisol soil.  Ultisol generally has not been handled properly. It needs some specific treatments due to the low nutrient contents, caused by the intensive leaching process. One of the effort to overcome the soil quality problems that occur in ultisol soils (high soil acidity, average pH <4.50, high Al saturation, and low macronutrient content such as P, K, Ca, Mg, and organic material content) is treated by the using the soil conditioner such as the supplying of organic materials in the form of compost and biochar. In this work, the biological organic fertilizer was also applied to increase microorganism activity in the soil. The experimental design used in this work was completely random design which has 8 combinations of soil treatment, compost, biochar and bio-organic fertilizer. Soil parameters measured were pH, C-Organic, P-Available, total bacterial population, soil respiration, and phosphomonoesterase enzyme activity. The agronomy parameters of shallot were also measured. The results showed that treatment of compost, biological organic fertilizer, and biochar have significant effect to increase soil microorganism activity in the form of total population of bacteria, soil respiration, P-Available and pH. The treatment also had a significant effect on supporting plant height at 2 and 6 MST, number of leaves at 2 MST, wet weight and dry weight of tubers. Keywords: biochar, bio-organic fertilizer, soil microorganism activity, shallot, ultisol 
Bioakumulasi Kadmium Pada Kerang Hijau (Perna viridis) Dengan Aplikasi Perunut Radioaktif Siregar, Yusni Ikhwan
JURNAL BIOLOGI INDONESIA Vol 6, No 1 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.907 KB) | DOI: 10.14203/jbi.v6i1.3170

Abstract

ABSTRACTBioacumulation of Cadmium on Green Mussel (Perna viridis) Using Radiotracer. A laboratoryexperiment on the accumulation of Cadmium (Cd) by green mussel (Perna viridis) has beenconducted. Radiotracer 109Cd was applied in the study. The research aimed at evaluating theeffect of salinity, temperature and size on uptake of radiotracer 109Cd by green mussel (Pernaviridis) from dissolved phase. It was found that both salinity and temperature had significanteffect ( P< 0.001) on accumulation rate of 109Cd. The highest concentration factor of Cd (31,23-54,09) was appeared in water salinity of 29% and of water temperature 30oC. At the steady statecondition green mussel accumulated 72,21-107,80 Bq/gr Cd. It revealed that the small Pernaviridis (5.2 cm in length) accumulated 109Cd about 107,80 Bq/gr, whereas the bigger size ofPerna viridis (6.6 cm in length) had an uptake of about 72,21 Bq/gr.Key words : Bioaccumulation, radiotracer Cd, Perna viridisKata kunci : Bioakumulasi, Perunut radioaktif, Cd, Perna viridis
The Addition of Potato Biscuit in the Feed of Sumatran Slow Loris (Nycticebus coucang Boddaert, 1785) and Javan Slow Loris (Nycticebus javanicus Geoffroy, 1812): The effects on Digestibility and Feed Efficiency Farida, Wartika Rosa; Sari, Andri Permata; Astuti, Wulansih Dwi
JURNAL BIOLOGI INDONESIA Vol 12, No 2 (2016): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (911.676 KB) | DOI: 10.14203/jbi.v12i2.2884

Abstract

ABSTRACTThis experiment aims to determine the effect of the addition of potato biscuit on digestibility and feed efficiency in Sumatran slow loris (Nycticebus coucang). Research has been conducted on Small Mammals Captivity Breeding of Zoology Division, Research Center for Biology - LIPI for 66 days consisting of a 10 days adaptation period of feed and 56 days (8 weeks) data collection period. The material used is four Sumatran slow lorises (N. coucang) and two Javan slow lorises (N. javanicus). Feed given during the study are banana, papaya, dragon fruit, guava, passion fruit, boiled sweet potato, boiled egg potato biscuits, crickets, and meal worm. Feed treatment to Sumatran slow loris consisting of feed control (T0) and T0 plus potato biscuits (T1), while Javan slow loris was only fed T1 as a comparison. Parameters measured were consumption, digestibility, and feed efficiency. The most palatable feed types for Sumatran slow loris and Javan slow loris are banana, cricket, and meal worm. Mean of feed intake at T0 and T1 treatment was 38.63 and 37.42 g / head / day, and that of Javan slow loris is 42.51 g / head / day. Mean of dry matter digestibility of Javan slow loris> T1> T0, namely 92.02%, 91.21%, and 88.95% respectively; whereas the highest average feed efficiency (EPP) is at 12.06% for Sumatran Slow loris and 9.10% in Javan slow loris. The average of total digestible nutrients (TDN) of Javan slow loris> T1> T0, namely 87.04%, 85.34%, and 83.54% respectively.Keywords: consumption, digestibility, feed utilization, Nycticebus coucang, Nycticebus javanicus
Keanekaragaman Jenis Ikan Di Suaq Balimbing dan Ketambe, Taman Nasional Gunung Leuser, Provinsi Nanggroe Aceh Darussalam Hadiaty, Renny K.
JURNAL BIOLOGI INDONESIA Vol 3, No 9 (2005): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i9.3281

Abstract

ABSTRACTThe Biodiversity of Fish In Squaq Balimbing and Ketambe Gunung Leuser NationalPark, Sumatera. Gunung Leuser National Park (GLNP) is one of the biggest national park inIndonesia which is the habitat of various flora-fauna. GLNP is a conservation area inSumatera island that lies in the two province, North Sumatera Province and Nanggroe AcehDarussalam Province. Little has reported about fishes inhabiting inland waters of Acehprovince and Sumatera Utara province, because The Fisheries Service of both province andThe University of Syah Kuala and The University of Sumatera Utara are more interested inconducting research on marine fish.Ichthyofauna research was conducted at the two Research Stations of Gunung LeuserNational Park, i.e Suaq Balimbing and Ketambe Research Station. Research activity at Suaq- Balimbing RS which is located in South Aceh Regency was conducted in 1997, whileresearch activity in Ketambe RS which is located in South East Aceh Regency was conductedin 1998. The research activity successfully collected 64 fish species which is belong to 36familia. There were two endemik species, one of them was protected species, six species wereundescribe ones and has described as new species, besides of those there are several specieswhich are assummed as undescribe species and still being examined.Keywords : Fish, biodiversity, Gunung Leuser National Park, endemic, protected, newspecies

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