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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
 80   81   82   83   84 
STUDY OF PTERIDOPHYTE DIVERSITY AND VEGETATION ANALYSIS IN JATIKEREP LEGONLELE AND NYAMPLUNG, KARIMUNJAWA ISLAND CENTRAL JAWA Saputra, Fahreza; Qotrunnada, Labibah
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i2.3081

Abstract

Kajian Diversitas Pteridofit dan Analisis Vegetasi di Jatikerep Legonlele dan Nyamplung, Pulau Karimunjawa, Jawa Tengah. Kajian Pteridofit dan analisis vegetasi dilakukan di tiga lokasi di Kep.Karimunjawa Jawa Tengah. Tujuan dari kajian ini untuk mendata Pterydofit yang dapat tumbuh di kawasan dataran rendah dengan kondisi tanah berpasir dan rendah jumlah curah hujannya. Tiga belas jenis Pteridofit dapat ditemukan di kawasan tersebut dengan jenis yang mendominasi adalah Lygodium flexuosurydom diikuti oleh Pteris vittata, Lygodium microphyllum, Lindsaea ensifolia, Pteris ensiformis, Nephrolepis brownii, Chelianthes tenuifolia, Nephrolepis hirsutula, Cyclosorus extensus, Blechnum finlaysonianum, Taenitis blechnoides, Abacopteris triphylla, dan Pteris semipinnata . Indeks diversitas dikawasan tersebut sanga rendah (Shannon-Wiener (H?) = 1.5462). Unsur tanah dan pH tidak banyakmempengaruhi signifikan diversitas Pterydofit.Kata kunci: Karimunjawa; Pteridofit diversitas; dataran rendah.
UPACARA SEREN TAUN DI CIGUGUR, KABUPATEN KUNINGAN, JAWA BARAT: TRADISI SEBAGAI BASIS PELESTARIAN LINGKUNGAN Royyani, Mohammad Fathi
JURNAL BIOLOGI INDONESIA Vol 4, No 5 (2008): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v4i5.3222

Abstract

ABSTRACTSeren Taun Ceremony at Cigugur, Kuningan District, West Jawa: TraditionalCeremonial For Environment Conservation. Human being couldn?t be separatedfrom the environment, but in reality the damage of the land is precisely caused by humanbehavior. The reason of this is that people don?t have good relationship with the surroundingenvironment. Following this logic, with participatory observation I have done it in February4 until 15th, 2004, the indigenous people with their tradition have their own way toconserve the land. They have a ritual tradition that can be used as a means of educationfor their adherent. Furthermore, ritual traditions also show the nearness of emotionalrelationship between human and the environment.Keywords: environtment, ritual tradition, Cigugur Kuningan
ISOLASI DAN KARAKTERISASI KITINASE ASAL BACILLUS CEREUS 11 UJ Suryadi, Y.; Priyatno, TP.; Susilowati, DN.; Samudra, IM.; Yudhistira, N.; Purwakusumah, ED.
JURNAL BIOLOGI INDONESIA Vol 9, No 1 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i1.146

Abstract

Kitinase merupakan enzim yang menghidrolisis polimer kitin menjadi oligomer kitin atau monomer Nasetilglukosamin.Penelitian ini bertujuan melakukan isolasi dan karakterisasi kitinase untuk memperoleh informasiaktivitas optimum kitinase asal B. cereus 11 UJ. Isolasi enzim kasar kitinase dan purifikasi parsial dilakukan denganpengendapan amonium sulfat jenuh 70% dan dialisis menggunakan membran selofan, selanjutnya dikarakterisasiuntuk memperoleh aktivitas optimum pada berbagai kondisi pH, suhu, waktu inkubasi, ion logam serta penentuannilai Km dan Vmaks. Hasil penelitian menunjukkan pemurnian kitinase dengan amonium sulfat 70% dan dialisismenunjukkan tingkat kemurnian masing-masing 2.40 kali dan 5.23 kali dibandingkan dengan ekstrak kasar enzim.Hasil karakterisasi menunjukkan bahwa kitinase asal B. cereus isolat 11 UJ mempunyai pH optimum 8, suhuoptimum 37oC, dan waktu inkubasi optimum selama 120 menit. Kation Mn2+, Fe2+, dan Cu2+ dengan konsentrasi10 mM diketahui dapat berfungsi sebagai inhibitor. Kitinase mempunyai nilai Km sebesar 29.71 μg/mL dan Vmakssebesar 1.035 x 10-1 μg/mL detik.Kata kunci: B. cereus 11 UJ, kitinase, purifikasi parsial, amonium sulfat, karakterisasi
PENGARUH PLATELET-RICH PLASMA (PRP) TERHADAP PROLIFERASI DAN VIABILITAS HUMAN DERMAL FIBROBLAST (HDF) DALAM KONSENTRASI GLUKOSA TINGGI Hadi, Restu Syamsul; Kusumah, Indra; Sandra, Yurika
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.v15i2.3815

Abstract

ABSTRACTThe administration of Platelet Rich Plasma (PRP) is expected to be a supplement for treatment of diabetic wounds and hyperglycemia by increasing growth factors. The purpose of this study was to examine the effect of Platelet Rich Plasma (PRP) on the proliferation and viability of human dermal fibroblast (HDF) in high glucose conditions, as a model for healing diabetic wounds in vitro. HDF cells are grown in DMEM medium containing high glucose which are then with PRP. To measure the effect of PRP on the HDF cell proliferation, CCK-8 kit was used and evaluated by using a microplate reader. To evaluate the viability of HDF, an automated cell counter. The results of the research showed that PRP stimulate the HDF cells proliferation. The optimal dose of PRP to increase HDF cell proliferation is at dose of PRP 10%.  Supplementation of PRP is significantly increased cell viability and HDF cell counts within 48 hours. The results showed PDGF growth factor secreted by PRP is increased significantly. The conclusion is PRP stimulated HDF cell proliferation and viability in a high glucose condition. This finding support the used of PRP as a therapy for diabetic wounds.  Keywords: proliferation, viability, human dermal fibroblast, platelet-rich plasma, diabetic
KOMUNITAS KODOK PADA LAHAN TERDEGRADASI DI AREAL CURUG NANGKA, JAWA BARAT Kurniati, Hellen; Sumadijaya, Alex
JURNAL BIOLOGI INDONESIA Vol 8, No 2 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i2.3043

Abstract

Frogs communities of degraded areas in Curug Nangka area, West Java. A Total of thirteenfrog species were found in degraded land areas of Curug Nangka, on the foot hills of MountSalak at elevation of 640 m - 730 m above sea level (asl). In the fast-flowing river habitat, threefrog species dominated this habitat, they were Huia masonii, Hylarana chalconota andOdorrana hosii; whereas in fast-flowing ditch habitat, Phrynoidis aspera and H. chalconotawere the dominant species, and for the pine plantation, H. chalconota and H. nicobariensisdominated this habitat. On the river transect, the presence of individuals H. masonii wasinfluenced by the dynamics of air temperature and water temperature. In the open ditchtransects, the presence of individual P. aspera was influenced by water temperature. Therewas a stronger positive association between the presence of individuals H. masonii andindividuals of O. hosii than between individual O. hosii and H. chalconota on the rivertransect. Among individuals of H. masonii and individuals of H. chalconota there was apositive association; however in the open ditch transects, there was no association betweenthe presence P. aspera and H. chalconota. The presence of H. chalconota and H. nicobariensison the pine plantation transect had strong positive association.Keywords: frog community, degraded area.
STUDI PENDAHULUAN MENGENAI PAKAN LONDOK MONCONG PSEUDOCALOTES TYMPANISTRIGA (SQUAMATA: AGAMIDAE) DI SISI BARAT GUNUNG CIREMAI Erniwati, Erniwati; Riyanto, Awal
JURNAL BIOLOGI INDONESIA Vol 5, No 3 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v5i3.3189

Abstract

TULISAN PENDEKStudi Pendahuluan Mengenai Pakan Londok Moncong Pseudocalotestympanistriga (Squamata: Agamidae) di Sisi Barat Gunung Ciremai
INCREASE OF CITRIC ACID PRODUCTION BY ASPERGILLUS NIGER INACC F539 IN SORGHUM’S JUICE MEDIUM AMENDED WITH METHANOL Kanti, Atit; Ilyas, Muhammad; Sudiana, I Made
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 | DOI: 10.14203/jbi.v14i2.3733

Abstract

ABSTRACTCitric acid demand increases steadily, and there is a need to increase productivity through selection of suitable carbon sources, and addition of substances that increase citric acids production rate. Methanol has been suggested to increase citric acid fermentation on high carbohydrate containing substances. The objective of the study was to evaluate the suitability of sweet sorghum juice for citric acids production and to verify the effect of methanol on citric acids production using Aspergillus niger InaCC F539  as inoculant. Sweet sorghum juice with the total initial reducing sugar of 11.5 % (w/v) was used as the sole carbon sources. To study the effect of total initial reducing sugar on citric acid production the initial reducing sugar was adjusted to the concentration of  30 to 75 g/L. Preliminary experiment was conducted to get the optimum methanol concentration that stimulate citric acid production. The optimum methanol concentration that stimulate citric acid production was 4% (v/v). Submerged fermentation was conducted as shake culture (125 rpm at 28 °C).  Citric acids production was affected by total initial reducing sugar. Higher total initial reducing sugar produced higher citric acids. Maximum citric acid production was 18.96g/L on sweet sorghum juice with 75 g/L total initial reducing sugar. Methanol 4 % (v/v) increase citric acid production by 41.35 to 65.89 %. Juice of sweet sorghum was a good medium for citric acids production, and methanol stimulate and increase citric acid production. It is a good basis for exploring efficient and cost effective industrial scale citric acid production. Keywords: Citric acid, Methanol, Sweet sorghum, Aspergillus niger 
CONSERVATION AREA AT CIREBON QUARRY (MT. BLINDIS) ANDS IT’S POTENCY IN CARBON SEQUESTRATION Yulistyarini, Titut; Fiqa, Abban Putri; Laksono, Rachmawan Adi
JURNAL BIOLOGI INDONESIA Vol 12, No 1 (2016): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v12i1.2311

Abstract

The biodiversity conservation areas of Cirebon quarry, in this case Blindis and Sari mountains is a limestone ecosystem.Limestone ecosystems play an important role in climate regulation. Quantifying the organic carbon storage of limestoneecosystems in this area definitely helps to evaluate the roles of these ecosystems in both global and regional carbon cyclesand also their impact on climate. This research was carried out to know the complete data of carbon storage in Cirebonquarry on each ecosystem types. In deep, it will give information which ecosystem and carbon pool that contributes thehighest carbon stock. The carbon stock calculating methods in above-ground was based on RaCSA (Rapid Carbon StockAppraisal) methods. Based on the observation, there are three ecosystem types in Cirebon Quarry i.e. Opened Area, ThickBushes and Secondary Forest. The result showed that Secondary forest had the highest total C-stock which was 87.18 t Cha-1, while the C-stock on Thick Bushes and Opened Area were 42.95 and 17.92 respectively. The total C stock inbiodiversity conservation area of Cirebon Quarry was 148.05 t C ha-1 comprises 48% of C plant biomass and 52% of Csoil.Key words: carbon stock, Cirebon quarry, limestone area
KERAGAMAN GENETIKA RAMIN [GONYSTYLUS BANCANUS (MIQ.) KURZ] DARI PROVINSI RIAU BERDASARKAN PROFIL RANDOM AMPLIFIED POLYMORPHIC DNA Kusumadewi, Yulita; Poerba, Yuyu S.; Partomiharjo, Tukirin
JURNAL BIOLOGI INDONESIA Vol 6, No 2 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i2.3157

Abstract

ABSTRACTGenetic Diversity of Ramin [Gonystylus bancanus (Miq.) Kurz] from Riau Province Based onRandom Amplified Polymorphic DNA Fingerprint. Gonystylus bancanus is a commercialtimber found only on peat swamp forests, scatteredly distributed in Sumatra and Kalimantan.Their existence is now under severe threat due to habitat conversion. One of the remainingnatural populations of ramin was in Riau Province, Sumatra. This study aimed to assessgenetic diversity of this species within their natural populations in Riau Province using RandomAmplified Polymorphic DNA (RAPD). RAPD profiles were obtained by performing PCRamplification using five arbitrary primers. One hundred and eleven putative loci of RAPD werescored and analysed using Popgene and NTSYS software. Eleven of RAPD bands werecommonly found in all populations and 16 bands were distinctively found in certain populations.These unique bands may serve as population diagnostic marker for such populations. Theaverage genetic diversity within population (0.1606) was lower than that of among populations(0.1894). Genetic differentiation (Gst) indicated that 95.56% of total genetic diversity in raminwas attributed to the differences among populations. The highest genetic diversity was foundin population 3 (He:0.1858) and 3 (I:0.2864), while the lowest genetic variation was observed inpopulation 1 (He: 0.1438) and 2 (I: 0.2201). Total genetic diversity for all population (Ht) was0.1982 with an average value of genetic diversity within populations (Hs) was 0.1606. The lowlevel of genetic diversity found in ramin with high population differentiation may suggest thatthese remaining populations was undergoing genetic bottleneck resulted from severe habitatfragmentation.Keywords: genetic diversity, populations, ramin, Gonystylus bancanus, RAPD.
BIODEGRADASI ALKIL BENZENA SULFONAT OLEH PSEDOMONAS CEPACIA Sudiana, I Made
JURNAL BIOLOGI INDONESIA Vol 3, No 3 (2002): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i3.3469

Abstract

ABSTRACTAlkyl Benzene Sulfonate Biodegradation of Psedomonas cepacia. Alkyl Benzene Sulfonate (ABS), naturally slow biodegradable substances, and toxic to human, animal and microorganisms, is a focus of environmental studies. Microorganisms appeared to play important role on biodegradation of that substances in nature, and wastewater treatment procesess. S2 isolated from detergent contaminated soil was able to grow in media with ABS as the sole carbon source. ABS degradation took place under aerobic condition, at pH 4, temperature 30ºC with ?max of 0.0591-h, Ks = 3.25 mg/L, Vmax = 0.16 mg/L.hours-1, and Km = 14.52 mg/L. Analyses of 16s rDNA revealed that S2 is belonging to Pseudomonas cepacia.Key words: Alkyl Benzene Sulfononate (ABS), Pseudomonas cepacia, detergent

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