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BERITA BIOLOGI

berita_biologi
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Published by Lembaga Ilmu Pengetahuan Indonesia

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Core Subject : Science, Agriculture,

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

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Articles 40 Documents

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Search results for , issue "Vol 9, No 6 (2009)" : 40 Documents clear

EVALUASI PERTUMBUHAN DAN PRODUKSI TANAMAN KOLEKSI PLASMA NUTFAH JARAK PAGAR {Jatropha curcas L.) Effendi, Dedi Soleh
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

For anticipating future need for physic nut (Jatropha curcas L.) variety with high yield, short growing period demand and tolerant to pest and plant disease, an exploration for collecting new accession to East Nusa Tenggara (NTT), Bali and Gorontalo had been conducted. Beside exploration it has also been developed some accession and improve population from KIJP Pakuwon, Muktiharjo and Asembagus.Population formed in plan furrows and designed in sizes of plots. Accession from the exploration and donor have been planted on August, 2008 in PT Bumimas Ekapersadas plantation in collaboration with Indonesian Center for Estate Crops Research and Development at Pasirranji, Bekasi, West Java. Physical data and collection plant identification result was targeted to obtain variety that has short period to bare fruit, high yield rate and tolerant to pest and plant disease.Based on the examination of morphological growth and development, it can be concluded that Jcur.0006 showed characterstic of short and development in growth and production, accession that has characteristic a short period to bloom and high yield rate with perfect growth is Jcur.0006, plant number 15, and Jcur.0030 with plant number 8, but this variety is less tolerant to louse pest.With assumption that each branch has one bunch, thus 1.600 dry seed weight equals to 1 kg and 2 m x 2 m planting range, first year production potential from each accession originated from Gorontalo Jcur.0006; while plant number 6 and from NTT Jcur.0030 plant number 8, may reach minimum rate not less than 2.25 ton/ha dry seeds and 2.39 ton/ha dry seeds.

ISOLASI DAN SELEKSIJAMUR APHYLLOPHORALES PENGURAI LIGNIN DIHUTAN BUKIT BANGKIRAI, KALIMANTAN TIMUR Subowo, YB
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Isolation and selection of Aphyllophorales as lignin degrading fiingus had been done in Bukit Bangkirai Forest, East Kalimantan. Aim of the research was to obtain Aphyllophorales fungi which have ability to degrade lignin. The fresh fruit bodies were collected from trunks, branches and litters of plants in the forest. The work was conducted at dry season. Fruit bodies were taken to base camp for isolation. The isolates were tested for their ability to degrade lignin. We found 24 isolates of Aphyllophorales fungi. Those isolates were grew in poly R-478 medium, 12 isolates were able to degrade lignin. Megasproporia sp. strain IB-24 had the highest ability in lignin degradation. The fungus can degrade poly R-478 8,05% during 90 minutes.

KOMPOSISI KIMIA MINYAK ATSIRI Melodorum cylindricum (Maing. ex Hook.f & 1 Thorns), Litseajirma (Blume) Hook.f., Fl. Brit. Ind. DAN Callistemon lanceolatus D.C. Jamal, Yuliasri
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Steam distillation of Melodorum cylindricum leaves (176 gram), Litsea firma leaves (295 gram), L firma stem bark (1,590 gram) and Callistemon lanceolatus leaves (300 gram) yielded 0.15%, 1.68%, 0.23% and 0.4% essential oils respectively.The oils were analyzed using GC-MS methods. The results identified 71 components from the leaves of M. Cylindricum which p-myrcene is the highest (12,56%). Leaves and stem bark of L. firma contained 20 and 24 components which 2-undecanone (34,95%) and undecanone (29,57%) as the highest major components. The essential oil of C. lanceolatus identified 24 components and 1,8 cineol is the major component with the highest content, 67.37%.

PEMANFAATAN ECENG GONDOK {Eichhomia crassipes (Mart) Solm} SEBAGAI TEKNIK ALTERNATIF DALAM PENGOLAHAN BIOLOGIS AIR LIMBAH ASAL RUMAH PEMOTONGAN HEWAN (RPH) PESANGGARAN DENPASAR - BALI [The Use of Water Hyacinth {Eichhomia crassipes (Mart) Solm} as an Alternative Technique for the Wastewater Biolgical Treatment at Pesanggaran Slaughterhouse] Suardana, IW
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.v9i6.853

A part from its main product, meat, a slaughterhouse also produces by products and waste. The waste from slaughterhouse is categorized as organic waste, which is high in proteins, fats, and starches. This waste is potential as a source of pollutant. Slaughterhouse wastes can be treated by physically, chemically, and biologically.One of biological treatments is the use of water hyacinth (Eichhomia crassipes (Mart) Solm.), which is known to have an ability to remove organic and unorganic compound and heavy metals.The objective of this research was to evaluate the wastewater quality with water hyacinth treatment and to identify the interaction between action period and the density of water hyacinth during treatment. Four model ponds of 95 cm long x 50 cm wide x 50 cm high were used in this research. The parameters observed were pH, BOD5, and COD for the water quality. Each parameter was observed on day 0, 7, 14, 21, and 28, respectiv ely. The results of the research indicates that the water hyacinth had significant effect (P<0.01) on declining pH, BOD5 and COD of wastewater. The interaction between treatment and time observation lh showed significant effect (P<0.01) up to 28Ã day of observation.

KEANEKARAGAMAN SUKU LEJEUNEACEAE (HEPATICAE, LUMUT HATI) DI D AERAH SEKITAR PPKAB (PUSAT PENDIDIKAN DAN KONSERVASI ALAM BODOGOL) TAMAN NASIONAL GUNUNG GEDE-PANGRANGO, JAWA BARAT Haerida, Ida
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

As many as thirteen species of Lejeuneaceae occurs in Bodogol, Gunung Gede-Pangrango National Park, West Java. Those species are Archilejeunea planiuscula (Mitt.) Steph., Cheilolejeunea ceylanica (Gootsche) R.M. Schust & Kachnoo, Cheilolejeunea trapezia (Nees) Kachroo & R.M. Schust., Cololejeunea denticulata (Horik.) Hatt., Cololejeunea goebeli (Gott. ex Schiffn.) Schiffh., Cololejeunea spinosa (Horik.) Hatt., Drepanolejeunea tkwaitesiana (Mitt.) Steph., Lejeunea discreta Lindenb., Lejeunea rotundistipula (Steph.) Hatt., Lejeunea sordida (Nees) Nees, Leptolejeunea maculata (Mitt.) Schiffn., Lopholejeunea subfusca (Nees) Schiffn., and Thysananthus retusus (Reinwardt, Blume & Nees) B. Thiers & Gradstein. Four species of these have not been reported previously from the island. Those are Cololejeunea denticulata, Drepanolejeunea thwaitesiana, Lejeunea rotundistipula and Cololejeunea spinosa.Keys, descriptions and figures are given for all species.

MIKROBAENDOFITIK DARI TAMAN NASIONALBATANG GADIS SUMATERA UTARA: POTENSINYA DALAM MENGHASILKAN SENYAWA ANTIMIKROBATERHADAPMIKROBAPATOGEN Sukiman, Harmastini; Lekatompessy, Sylvia; Widowati, Tiwit
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Batang Gadis National Park (TNBG) is one of the tropical forests in North Sumatra with megabiodiversity of flora and fauna including microorganism. Endophytic microbes conservation from varieties of forest plants in Batang Gadis National Park has been completed. Nineteen endophytes isolates from TNBG have been screened for their potential on producing bioactive compound against the pathogenic bacteria. Qualitative screening has been done using the growth agar media and identified the clear zone appeared surrounding the bacteria colony. The result indicated that isolate MSCI 87.4 showed high strengthening secresion (4.35) againts Xanthomonas campestris, whereas isolate MSCI 37.1 showed high secretion against Bacillus subtilis (2.69) and Escherichia coli (2.60). Isolate MSCI 37.4 showed potential on producing bioactive compound againts Staphylococcus aureus (4.41). Isolates MSCI 87.4, MSCI37.1, MSCI 37.4 and MSCI 58.1 even could produce bioactive compound against four pathogenic bacteria that are Xanthomonas campestris, Bacilus subtilis, Escherichia coli and Staphylococcus aureus, whereas isolate MSCI 15.5b potential on producing bioactive compound against two isolates namely Xanthomonas campestris and Bacillus subtilis. The endophytes bacteria mainly belong to the Gram negative group and four out of nineteen isolates tested belong to the Gram positive group. The cell mainly coccus and only one is bacilli without fiagella. The five most potential isolates has been maintained under freeze dried condition for futher conservation and study. Thin Layer Analysis using semipolar organic separation solution showed that most isolates identified were able to produce bioactive compound except two isolates i.e. MSCI 48.4a and MSCI 53.1; however further analysis is needed to confirm the product.

PENAPISAN AKTIVITAS LIPOLITIK SEPULUH BIAKAN Rhizopus KOLEKSIUICC (UNIVERSITY OF INDONESIA CULTURE COLLECTION) Lusini, Inu Yuyun; ET, Wibowo Mangunwardoyo; Gandjar, Indrawati
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.v9i6.849

Ten Rhizopus were screened for their extracellular lipolytic activity. All strains showed lipolytic activity with diffferent activities.R. microsporus var. rhizopodiformis (Cohn) Scipper & Stalpers UICC 520 (4.52 unit/ml) and R. microsporus var. oligosporus UICC 550 (2.58 unit/ml) showed a high lipolytic activity in screening medium containing 5% pepton and 1% glucose (b/v) without a lipid substrate after 24 hours of incubation at room temperature.

PENENTUAN FREKUENSI PEMBERIAN PAKAN UNTUK MENDUKUNG PERTUMBUHAN BENIH IKAN PATIN PASUPATI [Determination of Different Feeding Frequency on The Growth of Patin Pasupati Fingerlings] Tahapari, Evi; Suhenda, Ningrum
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The feeding rate and the feeding frequency influencing the growth and survival rate of fish. The objective of this research was to know the proper level of feeding frequency for supporting the growth of patin pasupati (hybride between Pangasius hyphophthalmus and P. djambal).The experiment was conducted in fibre glass tanks located at Research Instalation for Genetic and Freshwater Aquaculture Technology, Sukamandi. Patin pasupati fingerling with average body weight of 2.23 ÃÂ± 0.48 g were stocked in 9 fibre glass tanks, each filled with 30 litres of water.The experimental design was Completely Randomized Design with 3 treatments and 3 replications. The treatments were feeding frequency as follows 1, 3 and 5 times per day. The feeding rate was 8% of total body weight per day.The parameters were specific growth rate, average body weight gain, feed conversion ratio, protein retention,lipid retention, protein efficiency ratio and survival rate. The results of experiment indicated that there were significant different(P<0.05) among treatments for specific growth rate, individual body weight gain, feed convertion ratio,protein retention, lipid retention and protein efficiency ratio.The highest value for specific growth rate (7.03%) and protein retention (54.59%) were found for feeding frequency 5 times per day.The values of feed conversion ratio and survival rate for feeding frequency 5 times per day were 0.83 and 100%, respectively.

METIL EUGENOL, KHEMOTIPE DARIMINYAK ATSIRI Melaleuca spp. (MYRTACEAE) YANG TUMBUH DIKEBUN RAYA CIBODAS Murningsih, Tri; Chairul, Chairul; Kuncari, Emma Sri
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The essential oils of the fresh leaves of Melaleuca spp. (M. alternifolia Cheel, M. ericifolia Sm., M. squarrosa Donn, and M.genistifolia Sm.) from Cibodas Botanical Garden, Indonesia were isolated by a hydrodistillation method and analysed by a gas chromatography/mass spectrometry (GC/MS) technique. The various Melaleuca species showed differences within their relative essential oil compositions. The oils from all samples were of the methyl eugenol (10.30-71.25%) chemotype. The others major constituent were terpinen-4-ol (38.49%), linalool (19.65%) and bis(2-ethylhexyl)phtalate (66.09%) in the M. alternifolia, M. ericifolia, and M. genistifolia respectively.

MUNDU: Garciniaxanthochymus Hook.f. ATAU G. dulcis (Roxb.) Kurz. Utami, Nanda; Sari, Rismita
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.v9i6.850

"Mundu" is common name for one of the member of Clusiaceae family (manggis-manggisan).In scientific writing it is sometimes called Garcinia xanthochymus Hook.f. or G. dulcis (Roxb.)Kurz. To determine the correct name for these two kinds of plant a study was conducted to review its taxonomic status. Based on morphological data, anatomical and phylogenetic analysis it is showed that the two species is separated but there are closely related, and in according to International Code of Botanical Nomenclature Garcinia xanthochymus Hook.f is the correct name for "MUNDU"

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