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Brigitta Laksmi Paramita
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Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Published by Universitas Atma Jaya Yogyakarta
ISSN : 25273221     EISSN : 2527323X     DOI : doi.org/10.24002/biota
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati merupakan jurnal ilmiah yang memuat hasil-hasil penelitian, kajian-kajian pustaka dan berita-berita terbaru tentang ilmu dan teknologi kehayatian (biologi, bioteknologi dan bidang ilmu yang terkait). Biota terbit pertama kali bulan Juli 1995 dengan ISSN 0853-8670. Biota terbit tiga nomor dalam satu tahun (Februari, Juni, dan Oktober).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 20 Documents
 1   2 
Search results for , issue "Vol 8, No 3 (2003): October 2003" : 20 Documents clear
Penetapan Tingkat Eksploitasi dan Status Populasi Kura-kura Hutan Sulawesi (Leucocephalon yuwonoi McCord, Iverson and Boeadi, 1995) di Kawasan Sulawesi Tengah Bagian Utara, Indonesia Riyanto, Awal
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.46 KB) | DOI: 10.24002/biota.v8i3.2858

Abstract

Kura-kura Sulawesi (Leucocephalon yuwonoi McCord, Iverson and Boeadi, 1995) adalah satu dari sekian banyak kura-kura yang paling sedikit diketahui dan paling jarang di dunia. Pada tahun 1995 yaitu tahun pertama ditemukan, kura-kura ini telah membanjiri restoran di daratan utama Cina, dan oleh IUCN-The World Conservation Union  populasi kura-kura  ini dikategorikan kritis. Penelitian ini untuk mengungkap tingkat eksploitasi dan status kura-kura Sulawesi yang dilakukan di kawasan utara Sulawesi Tengah dari tanggal 28 April sanpai 13 Mei 2002. Penelitian dilakukan dengan dua pendekatan yaitu (1) survei menggunakan garis transek pada habitat yang merupakan kawasan anak sungai dan (2) kunjungan kepada para pemburuh atau kolektor untuk mendata jumlah kura-kura yang ditangkap. Hasil penelitian ini menunjukkan bahwa tingkat eksploitasi kura-kura Sulawesi pada tahun 2002 diperkirakan mencapai 720 ekor dan status populasinya dinyatakan langka dengan frekuensi 1,91 per hari. Hasil penelitian  berhasil pula mengungkapkan lokasi baru pada  penyebaran kura-kura Sulawesi.
Deteksi Secara Imunohistokimia Oxygen-Free Radical Scavenger-Copper, Zinc-Superoxide Dismutase (Cu,Zn-SOD) pada Hati Tikus di Bawah Kondisi Stress Wresdiyati, Tutik
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.028 KB) | DOI: 10.24002/biota.v8i3.2853

Abstract

Copper,zinc-superoxide dismutase (Cu,Zn-SOD) yang merupakan salah satu oxygen-free radical scavenger telah dideteksi secara imunohistokimia pada hati tikus di bawah kondisi stres.  Sejumlah empat puluh lima ekor tikus jantan galur Wistar telah digunakan pada penelitian ini.  Hewan percobaan tersebut dikelompokkan menjadi tiga kelompok, yaitu : (1) kelompok kontrol, (2) kelompok dengan perlakuan stres selama 3 hari, dan (3) kelompok dengan perlakuan stres selama 5 hari. Stres yang diberikan adalah puasa, dengan pemberian air minum secara ad libitum. Stres yang diberikan menimbulkan keadaan histopatologis, peradangan dan nekrosis pada jaringan hati kelompok perlakuan tersebut.  Secara imunohistokimia menunjukkan adanya penurunan kandungan Cu,Zn-SOD pada jaringan hati kelompok perlakuan dibandingkan pada kelompok kontrol.  Penurunan kandungan Cu,Zn-SOD tersebut lebih hebat pada kelompok perlakuan selama 5 hari dibandingkan dengan kelompok perlakuan selama 3 hari. Hasil penelitian ini menunjukkan bahwa kondisi stres kemungkinan dapat meningkatkan terbentuknya oxygen-free radical yang kemudian merusak jaringan hati dan menurunkan kandungan Cu,Zn-SOD.
Reproduksi Seksual Karang Scleractinia: Telaah Pustaka Bachtiar, Imam
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.149 KB) | DOI: 10.24002/biota.v8i3.2856

Abstract

There has been a revolutioner development in our understanding about coral reproduction in the middle of 1980s. All publication, before this period, therefore provides incomplete facts and wrong conclusions about the modes of coral reproduction. Most corals are hermaphodite and broadcast spawners, in which fertilization takes place externally. Temperature, photoperiod, lunar and tidal cycles are thought to be major environmental factors influencing reproductive cycle in corals. In Indonesia, sexual pattern of scleractinian corals consistent with previously reported data from other regions. Available data show that multispecific spawning may occurs in Indonesia. There are also some evidences that there is variation in spawning season between corals in Lombok and Karimunjawa Islands.
Variasi Morfologi dan Jenis Inang dari Cyclodontostomum purvisi (Adam, 1933) (Nematoda: Strongyloidea) di Indonesia Purwaningsih, Endang
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v8i3.2851

Abstract

Cyclodontostomum purvisi  (Adam, 1933) is a nematode infects small mammals belongs to family Muridae  (Rattus spp and Maxomys spp)  in  Kalimantan, Sulawesi and Java. There are some morphological variation on those nematode such as the number of corona radiata elements and head orientation (the angle between cephalic collar and sagital body axis). The angle is stronger in the specimens from Kalimantan and decreasing in the specimens in Sulawesi and Java. R. exulans  from Kalimantan and R. tanezumi from Sulawesi are the new host record for  C. purvisi in Indonesia.
Menguak Rahasia Kehidupan (Kajian Buku) Lanni, Fransiska
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.805 KB) | DOI: 10.24002/biota.v8i3.2860

Abstract

Masih ingat dengan James D. Watson, Francis Crick dan Maurice Wilkins, trio ilmuan yang dianugerahkan hadiah Nobel untuk bidang Fisiologi dan Kedokteran tahun 1962? Penemuan mereka tentang struktur double helix DNA yang spektakular tersebut telah membuat revolusi besar dalam  biologi molekular dan tidaklah berlebihan jika  kemudian dijuluki sebagai “the father of DNA”. Memperingati setengah abad (50 tahun) publikasi pertama tentang double helix di Nature (1953), telah diluncurkan buku  DNA:The Secret of Life.
Isolasi dan Karakterisasi Jamur Pendegradasi Katekin dari Seresah Pinus Nurnawati, Elisa; Sembiring, Langkah
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.808 KB) | DOI: 10.24002/biota.v8i3.2855

Abstract

Isolation of catechin-degrading fungus from pine litter samples was done using minimal medium that containing catechin as sole carbon and energy source.  A total of 53 isolates were chosen to represent different colonial types of catechin degrading-fungus. The isolates were screened for their ability to degrade catechin in three stages. The first stage of screening was based on their ability to grow on solid medium containing 2 mM, and as a result, 28 isolates were selected.  The second stage of screening on the same medium but containing 4 mM of catechin resulting in 14 selected isolates. The third stage screening was based on their mean growth rate constant (k), instantaneous growth rate constant (m) and generation time (g) on minimal medium containing 4 mM catechin. The result showed that four isolates (D9, K2, K11, and S11) were the best catechin degradator. Further growth kinetic study  (k, m ,and g) of selected  isolates   indicated that  D9, K2, and S11 grew well on the medium containing 40 mM, but  K11 was inhibited by concentration of higher than 10 mM. Catechin biodegradation process was determined by following the decrease of catechin concentration on liquid medium. It was found that isolate K2 had higher ability to degrade catechin than the isolate K11. Finally, the four selected isolates from the third stage were characterized in terms of macroscopic, microscopic and phenotypic characters and identified. The result of the study showed that the isolates D9, K2 and S11 were identified as member of Aspergillus niger group. The isolate D9 was very similar to isolate S11, while the isolate K2 was found to be the most similar with Aspergillus niger van Tiegh. IFO 6341. The isolate K11 was assigned to be member of the genus Trichoderma.
Abundance of Giant Clam in Coral Reef Ecosystem at Pari Island: a Population Comparison of 2003's to 1984's Data Eliata, Alfiani; Zahida, Felicia; Jati, Wibowo Nugroho; Panggabean, Lily M.
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (28.005 KB) | DOI: 10.24002/biota.v8i3.2859

Abstract

A survey on abundance of Giant Clam in coral reef ecosystem at PariIslandhas not been done long after the first survey on 1984. The survey itself is very important because Indonesian government has been release SK Menteri Kehutanan No. 12/Kpts-II/1987 and PP No. 7. th.1999 that states the giant clam is protected species. Indonesia has seven species of giant clam out of nine species presence in the world, i.e. Tridacna gigas, T.crocea, T. maxima, T. derasa, T. squamosa, Hippopus hippopus, and H. porcellanus (Rohmimohtarto dkk, 1987, Knop, 1996)
Bioaugmentasi Benzena Tanah Tercemar Hidrokarbon yang Dibiodegradasi secara in vitro dengan Menggunakan Bacillus Sp. Strain U41 dan U44 Irianto, Agus; Oedjiono, Oedjiono; Riyanto, Agus; Komar, M. Syamsul
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.318 KB) | DOI: 10.24002/biota.v8i3.2852

Abstract

Soil pollution by substances such as benzene can cause serious problems such as aquifer contamination and reduction of the biodiversity of organisms. A number of microorganisms are capable to degrade such substances naturally. However, introduction of any other microorganisms and or nutrient (bioaugmentation) are necessary in order to improve the biodegradation rate. This study examined the effect of introducing promising local strains of Bacillus namely U41 and U44, and urea addition at concentration 0.25% w/v. The parameter measured was benzene, pH, microbial number, and CO2. The best result was revealed from bioaugmentation of mixture of U41 and U 44. However, that result was not significantly difference with the use of single either strain U41 or U44, respectively.
Keanekaragaman Flora di Hutan Mangrove Kawasan Pesisir Teluk Mandar, Polewali, Propinsi Sulawesi Selatan: Kajian Pendahuluan Pramudji, Pramudji
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (172.52 KB) | DOI: 10.24002/biota.v8i3.2857

Abstract

The sudy of mangrove forest in the coastal zone of Mandar Bay, Polewali, Province of South Sulawesi was carried out from  July 21st to July 28th  2002. Data was collected from 5 locations (Panampeang Island, Battuwai Island, Salamah Island, Koremasang Island, and coastal zone of Binnuang) following transect method.  The result showed that mangrove in the coastal zone of Mandar Bay was dominated by Rhizophora  stylosa and Sonneratia alba. The floristic composition of mangrove forest consist of 29 species. Recently, the extent of mangrove forest in this area was decreasing due to the conversion of mangrove into human settlement, fishpond and uncontrolled mangrove exploitation. This situation lead to the depletion of the living organisms, which are living in this area.
Aplikasi Coat dan Film Pati Batang Aren untuk Mencegah Susut Berat dan Pencoklatan pada Buah Apel Terolah Minimal Pranata, F. Sinung
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v8i3.2854

Abstract

Minimally processed fruits provide convenience and freshness characters. Weight loss is a critical factor affecting the shelf life of minimally processed apples. These apples were limited by brown coloration that develops on surface. The objective of this study is to evaluate the effectiveness of edible coat and film made from aren starch against weight loss and browning on minimally processed apples. Edible coat and film solutions were prepared from 3% (w/v) aren starch, 6% (w/w) palmitic acid, and 1% (w/v) sorbitol. Minimally processed apples were either dipped in the coating solution or wrapping by edible film and then stored at ambient temperature for 8 hours. Browning appearance was determined every 4 hours and weight loss of apples was measured every hour.  Edible film was much effective on weight loss control than coating during storage. Color analysis showed that pati aren edible  coating and film wrapping did not significantly delayed browning reaction on  minimally processed apples.

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