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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 2,125 Documents
 162   163   164   165   166 
KOMPOSISI KIMIA MINYAKASTIRI PALA WEGIO {Myristica fatua Houtt.) Yuliasri Jamal; Andria Agusta
BERITA BIOLOGI Vol 7, No 3 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i3.1065

Abstract

Aril and seeds of "pala wegio" {Myristica fatua Houtt),as one of endemic plants from Moluccas, contained 0.81% and 0.73%essential oils respectively.Gas Chromatography & Mass Spectrometry (GCMS) analyses indicated two similar major components (>10%) in aril and seeds essential oils of "pala wegio", (-) a-Copaene (aril 36.11% & seeds 29.81%) and caryophyllene (aril 18.05% & seeds 34.62%).However, the seeds essential oil had the third major component unindentified with 17.58% content.
PROFITABILITAS DAN KERAGAAN PERTUMBUHAN BENIH IKAN Tor tambroides DENGAN FREKUENSI PAKAN YANG BERBEDA Jojo Subagja; Deni Radona
BERITA BIOLOGI Vol 17, No 2 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i2.3000

Abstract

Fish of Tor genus have a slow growth character that resulted in increasing production cost. The high production cost is related to the high price of feed. Fish growth can be triggered by an optimal feeding. A feeding strategy is needed to improve the efficiency of production cost. This study aimed to determine the profitability and the performance of the seedling thai mahseer fish with different feeding frequencies. This study was conducted in Germplasm Research Station, Cijeruk in March-April 2014. The fish used in the experiment have a standard length of 2.29 ± 0.12 cm and weight of 0.32 ± 0.07 g derived from induced breeding spawning of the broodstock natural catches which was adapted for four years in pond concrete. The fish were reared in the aquarium (dimension= 40 x 30 x 30 cm) with a water height of 20 cm and a stocking density of 50 individuals each. The experiment was designed by using three treatments and three replications for each treatment. Fish were feed using commercial feed (protein content = 28%) as much as 20% per day of the total biomass. The treatment observed was feeding frequency, namely (A) three times/day, (B) twice/day, (C) once/day. Results of the experiment for 40 days showed that the increasing values of length, weight, specific growth rate, survival rate, biomass and FCR were not significantly difference (P>0.05). The highest benefit value was obtained in the treatment of feeding with a frequency of three times/day (Rp. 332.304 ± 14.819,-).
KARAKTERISTIK MORFOLOGI DAN PERKEMBANGAN BUNGA Aeschynanthus tricolor Hook. (GESNERIACEAE) Sri Rahayu; Hary Wawangningrum; R. Vitri Garvita
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1822

Abstract

Aeschynanthus tricolor Hook. (Gesneriaceae) is one of the Aeschynanthus, a special lipstick flower characterized by its campanulate red calyx which more showy than its short stripped corolla. This specific character is beneficially potential for cross pollination to make a new variety. To develop a new variety, it is important to have information about the biology of flowers.However, such information is still lacking. This research was therefore aimed to obtain information on flower characteristics and development in order to understand the pollination systems of this species. Observations was made on A. tricolor from Central Kalimantan collected in 2000 that was planted in Bogor Botanic Gardens green house. Results indicated that this species was categorized as protandrous, which mean the flower cannot pollinate by itself without pollination agent. The pollinators of this species were bird and/or bumble bee. The flower developments took 32 days from the beginning of a flower bud to anthesis. It was suggested that cross pollination for interspecific hybridization was between the species within the same clade (Section Aescynanthus).
KOMPONEN KIMIA DAN UJIANTIBAKTERIMINYAK ATSIRIDAUN KI CENGKEH (Urophyllum arboreum (Reinw. ex. Bl.) Korth.) Praptiwi Praptiwi; Yuliasri Jamal; Tri Murningsih
BERITA BIOLOGI Vol 6, No 3 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i3.1218

Abstract

This study was done to determine the chemical compounds and antibacterial activity of ki cengkeh (Urophyllum arboreum (Reinw.ex. Bl.) Korth.) essential oil. Ki cengkeh has already known as medicinal plant in some places in Indonesia. This might be correlated with its chemical compounds. The analysis of chemical compounds of ki cengkeh essential oil was done by GC-MS, while antibacterial test was done by paper disc method against 3 bacteria isolates (Staphylococcus aureus, S. epidermidis and Eschericia coli). The result of GC-MS analysis showed that there were 25 compounds with the concentration more than 1% and carryophylen oxide as the highest compound (12.03%). The highest antibacterial activity was found against S. epidermidis.
INFEKSI BAKTERI Vibrio alginolyticus PADA LUMBA-LUMBA HIDUNG BOTOL, Tursiops aduncus YANG DIPELIHARA DI LOVINA, SINGARAJA, BALI Fris Johnny; Des Roza
BERITA BIOLOGI Vol 13, No 3 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i3.673

Abstract

An experiment with the aim to identify the cause of disease in Indo-Pacific bottlenose dolphins, Tursiops aduncus was conducted in Pathology Laboratory of Institute for Mariculture Research and Development, Gondol, Bali. The diseased fish showed lost appetite, swim slowly, and haemorrhage on the body surface. These clinical signs indicate that the fish infected by bacteria. The bacteria then were isolated aseptically from different parts of fish body including chin, abdomen, dorsal and caudal fins. Some media were used to isolate the bacteria, namely Triptic Soy Agar (TSA) as a general medium, Thiosulphate Citrate Bile Salt Sucrose Agar (TCBSA) for Vibrio bacteria, Cytophaga Agar (Cyt-A) for Flexibacter bacteria, and KF-Strep Breeders media for Streptococcus bacteria. As a result, one dominant bacterium was isolated from TSA and TCBSA. No bacteria growth showed on Cyt-A and KF-Strep media.The isolate was gram-negative, fermentative, swarm on TSA, growth with yellow colony on TCBSA. Based on its characteristics the isolate identified as Vibrio alginolyticus. Minimum inhibitory concentration (MIC) against Vibrio alginolyticus were 1 ppm for Nifurpirinol, 5 ppm for Penstrep, and 10 ppm or Elbaju.
PEMANFAATAN KONSORSIUM BAKTERI LOKAL UNTUK BIOREMEDIASI LIMBAH TEKSTIL MENGGUNAKAN SISTEM KOMBINASI ANAEROBIK-AEROBIK I Dewa K Sastrawidana; Bibiana W Lay; Anas Miftah Fauzi; Dwi Andreas Santosa
BERITA BIOLOGI Vol 9, No 2 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i2.2020

Abstract

The objective of this research is to study the potential use microorganisms which are identified as Aeromonas sp., Pseudomonas $p., Flavobaclerium sp., Plesiomonas sp. and Vibrio sp. Five bacteria strains from sludge of Badung river were identified as Vibrio sp. and Plesiomonas sp. Two anaerobic-aerobic reactors were operated to treat textile waste water. Each reactor contained vulcanic stone to increase spesific surface of media for attachment of bacteria.Bacteria consortia used for anaerobic process consist of Aeromonas sp. (ML6), Aeromonas sp. (ML14), Aeromonas sp. 9ML24), Pseudomonas sp. (ML8) and Flavobacterium sp. (ML20). Whereas, bacteria consortia for aerobic process consist of Plesiomonas sp. (SB1), Plesiomonas sp. (SB2), Vibrio sp.(SB1), Vibrio sp. (SB2) and Vibrio sp. (SB3). The system was operated for 3 day in each reactor. The result showed, biodegradation of textile waste water in combined anaerobic-aerobic system by attached growth process is potential for treatment of textile waste water.This technology is effective to decrease COD value up to 98.38%, BODS 93.90%, TDS 80.87%, TSS 87.50% and decolorization of textile dyes up to 95.57%.
KOMUNITAS SERANGGA AIR DI SUNGAI HUTAN KETAMBE, TAMAN NASIONAL GUNUNG LEUSER, ACEH. S. WIRJOATMODJO; ANITA HANNA ATMOWIDJOJO
BERITA BIOLOGI Vol 3, No 3 (1985)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i3.1354

Abstract

S. WIRJOATMODJO & ANITA HANNA ATMOWIDJOJO. 1985. Insect community of stream ecosystem of Ketambe forest, Gunung Leuser National Park, Aceh, Berita Biologi 3.(3) : 111 -115.Non-strictly seasonal study on the insect community of stream ecosystem at Ketambe forest, Gunung Leuser National Park,Aceh was undertaken from September 1980 to February 1983,with the aim of providing base line data of the local stream ecosystem. Thirty two species of benthic insects were recorded from the depth between 5--30 cm.They belong to the orders of Diptera, Odonata, Kphemeroptera, Coleoptera, Plecoptera, Hemiptera, Megaloptera and Trichoptera. The number of species found was higher during the beginning of the dry than that of the rainy season (96,9% vs 59,4% of the total). Diptera and Odonata showed the highest number of species (8) among the orders, whereas Trichoptera was the lowest (one species). However, in term of frequency of occurence and abundance, the Trichoptera species, Hydropsyche sp,, was the highest, followed by Neoperla sp. (Flecoptera). There was a tendency of seasonal fluctuation in species number and life cycle in several species. Bottom structures containing pebbles, boulders of various sizes and leaf litter for shelter and feeding site, appeared to be the best habitat. Species composition or number varied with stations. However, diversity indexes among stations were more or less similar, and all of them were low.
BIOLOGI BIJI GEWANG {Corypha utan Lamarck): KERAGAMAN KANDUNGAN EMBRIO, KIMIA DAN PERANAN MIKROBA DALAM PROSES PERKECAMBAHAN BIJI BP Naiola; N Nurhidayaf
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i6.855

Abstract

A laboratory study in 2007 on seed physiology of gewang/talipot palm {Corypha utan Lamarck) - by splitting down the seeds by liquid nitrogen technique, revealed that not all seeds - only 20% - bearing mature embryos. Those embryos are highly protected by robust endocarp and endosperm. A further study was done to reconfirm the previous result, found that seed bearing embryo from 3 different ecotypes of gewang in East Nusa Tenggara (NTT) shows a relatively high diversity in seed bearing embryo originated from different ecotypes, ranging from 16 to 57%. Embryolessness seeds is assumed as due to the antagonistic interaction between GA, (gibberellic acid) and ABA (abscisic acid) during embryogenesis. Chemical content of seeds also shows relatively high in carbohaydrate and protein, while lipids were relatively low. Microbes identified as Fusarium and Bacillus was found in the surface of endocarp; Fusarium shows a more capability to decompose the endocarp of gewang seeds, thus allowed imbibition process, which lead to seed germination. Although Fusarium known as a soil borne disease for plants, their roles in endocarp/testa decomposition is important and needed by gewang to proceed seed germination. While the coming seedling of gewang may develop probably an internal resistance against Fusarium.
PERBANYAKAN IN VITRO KELADI TIKUS (Typhonium flagelliforme (Lodd) BI.), TANAMANA YANG BERPOTENSI SEBAGAI OBAT KANKER Maria Imelda
BERITA BIOLOGI Vol 6, No 4 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i4.3452

Abstract

Keladi tikus (Typhonium flagelliforme (Lodd) BI.) of the Araceae generally grows wild in the open or in slightly shaded areas. The active compounds of the plant have not yet been known, however its potential for cancer medication has been reported by several media. Since the plant is being hevaly removed in their habitat, research for adoption of in vitro technique for production of their planting materilals is needed. Lateral shoots of a 2-cm tuber, were sterilized with 30% sodium hypochlorite for 15 minutes. After several rinses with sterile distilled water, the shoots were cultured on a soild Murashige & Skoog (MS) medium supplemented with BAP (0,25;0,5;0,75;1,0 mg/l) in combination with IBA (0,25;0,5;0,75;1,0 mg/l). All cultures were incubated at 26 C under fluorestcent lights of 16 hours/day. Rooting of shoots was induced on MS medium without growth regulators and the plantets were established in a potting medium of sand,compost and soil (1:1:1). The result showed that the highest rate of shoot proliferation and growth was on MS medium supplemented with 0,5 mg/l 1 BAP and 0.25 mg/l IBA. Using this medium,  a sixteen-fold increase in shoot multiplication can be achieved with survival rate of 95%.
PENGARUH PEMBERIAN PUPUK KANDANG AYAM TERHADAP PERTUMBUHAN ANAKAN EBONI (Diospyros celebica Bakh.) DIPERSEMAIAN VVirianto Rahman; Budirman Bachtiar
BERITA BIOLOGI Vol 6, No 2 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i2.1496

Abstract

Penelitian ini bertujuan untuk mengetahui dosis pupuk kandang ayam dan asal anakan agar bibit eboni tumbuh dengan baik.Rancangan penelitian ini adalah Rancangan Petak Terpisah dengan asal anakan (alam dan persemaian) sebagai petak utama dan lima taraf pupuk kandang sebagai anak petak.Hasil penelitian menunjukkan bahwa tingkat pertambahan tinggi serta pertambahan diameter batang anakan asal alam lebih baik dari pada anakan persemaian. Hal ini diduga adanya pengaruh positif dari mikoriza pada anakan yang berasal dari alam.Perlakuan pemupukan mempunyai pengaruh nyata terhadap pertambahan tinggi dan jumlah daun anakan, tetapi tidak menunjukkan pengaruh nyata terhadap pertambahan diameter anakan eboni.Terdapat interaksi nyata antara asal anakan dengan perlakuan pemupukan terhadap pertambahan tinggi anakan dan tidak berpengaruh nyata terhadap perkembangan diameter batang dan pertambahan jumlah daun.

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