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Berkala Penelitian Hayati
Published by Perhimpunan Biologi Indonesia Cabang Jawa Timur
ISSN : 08526834     EISSN : 2337389X     DOI : https://doi.org/10.23869/bphjbr
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology
Berkala Penelitian Hayati is a half yearly international peer reviewed, an open access life science journal. The journal was published by The East Java Biological Society and formerly used the Indonesian language. The first edition of this journal is Vol 1 No 1 in June 1995. It was accredited by Ministry of Culture and Education. It continues recorded by Zoological Record by Thomson Reuters Clarivate Analytics since 2011. Since April 2012, the journal was changed into English. This journal is indexed by DOAJ, Crossref, Google Scholar, Academia.edu, and EBSCO Host. This journal publishes original research, applied, review article, and educational articles in all areas of biology. Authors are encouraged to submit complete unpublished and original works that are not under review in other journals. This journal publishes original research, applied, review articles, and educational articles in all areas of biology. Authors are encouraged to submit complete unpublished and original works that are not under review in other journals. The journal scopes include, but are not limited to, the following topic areas including botany, zoology, ecology, microbiology, physiology, nanobiology, coastal biology, hydrobiology, neurobiology, genetics, developmental biology, biochemistry and molecular biology, biophysics, and life science.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 13 Documents
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Search results for , issue "Vol 10 No 2 (2005): June 2005" : 13 Documents clear
EXISTENCE OF Stelechocarpus burahol (Bl.) Hook.F. & Th. IN WILDERNESS ZONE, BANDE ALIT RESORT, MERU BETIRI NATIONAL PARK Umiyah
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/430

Abstract

Many researchers (Botanists, Systematists, Taxonomists, etc.), especially who concern in plant conservation are afraid about the existence of Stelechocarpus burahol (Bl.) Hook.f. & Th., family Annonaceae. Because, the plant is becoming rare and facing extinction. Information about the species is so limited and difficult to get. Fortunately, based on the preliminary study of the population shows that it can be found in Wilderness Zone, Bande Alit Resort, Meru Betiri National Park. The mapping of the species disperse in this location was also done.
Medicago truncatula Rop GTPases expression in young nodules Lucia Kusumawati; Rossana Mirabella; René Geurts
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/434

Abstract

Small GTPases are monomeric guanine nucleotide binding proteins with molecular weight of 21 to 30 kD. Plants have plant-specific small GTPases, termed Rop (Rho GTPases from plants) which serve as signaling proteins in plant signal transduction. To have better understanding on nodulation process in legume, which Rop proteins that play a dominant role in nodule formation would be determined. Therefore, the expression of five Medicago truncatula Rop GTPase genes (MtRops) in young nodules were studied in this experiment. RT-PCR method was used to examine the expression of MtRops. The MtRops expression in inoculated M. truncatula plants were compared with those in uninoculated plants. Results of this studies showed that the expression of MtRop5 and MtRop6 were significantly induced in young nodules, it was suggesting that these Rops may have important role during nodule formation.
CACING PARASIT PADA Nycticebus coucang L.E. Setyorini; Wirdateti
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/436

Abstract

Seventeen slow loris, Nycticebus coucang were examined for the endoparasitic occurrence, four are alive and the others are cadavers. Eggs, embryonated eggs and larvae of Enterobius sp. (Nematode: Oxyuridae ) were found on the fecal examination. The adult and mature helminth of Syphacia sp. (Nematode: Oxyuridae) and Rictularia sp. (Nematode: Rictularidae), a species of the tape worm and species of the hook worm were found on the necropsy of thirteen cadavers.
PRODUKSI, ISOLASI DAN KARAKTERISASI ENZIM DEKSTRANASE dari Arthrobacter sp. B7 Afaf Baktir; Untung Murdiyatmo
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/439

Abstract

Dextranase enzyme has been purified and characterized from Arthrobacter sp. B7. This enzyme was purified from the culture supernatant of Arthrobacter sp. B7 by procedure of native PAGE. The molecular size of the enzyme was estimated 72,5 kDa by SDS-PAGE. The N-terminal amino acid sequence of this enzyme determined using Edman degradation techniques were APVTADVGNLHT. SDS-PAGE and native-PAGE analysis revealed that the enzyme molecule consisted of one sub-unit.
PENENTUAN STABILITAS SEDIAAN KRIM TABIR SURYA DARI BAHAN EKSTRAK RIMPANG KENCUR (Kaempferia galanga L.) Widji Soeratri; Noor Ifansyah; Diana Fitrianingrum
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/441

Abstract

The objective of this research was to know the chemical stability of the etil para-metoksi sinamat (EPMS) formulated in sunscreen cream of oil in water base. The EPMS was isolated from Kaempferia galanga L. tuber pulvis with maceration-percolation method using ethanol 96%. The chemical stability of the EPMS formulated in sunscreen cream of the oil in water base was investigated by keeping the cream at room temperature. At appropriate interval the concentration of EPMS in cream was measured. The results showed that the EPMS formulated in sunscreen cream of oil in water base was unstable at room temperature for 70 days. The concentration of EPMS in cream significantly decreased after 70 days (p = 0,01) during keeping at room temperature with the coefficient degradation value (k)= 4.4.10-3/day.
EFEK ESTROGENIK EKSTRAK DAUN HANDEULEUM {Graptophyllum pictum (L.) Griff)} PADA HISTOLOGI UTERUS MENCIT BETINA OVARIEKTOMI Listijani Suhargo
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/442

Abstract

Estrogenic effects of handeuleum leaf {Graptophyllum pictum (L.)Griff)} were showed by uterus histology examinations of ovariectomy female mice. Female mice aged 3 months, were treated by gavage with handeuleum leaf extracts, ethinyl estradiol, aqua dest, and olive oil. The results showed that the treatment of handeuleum leaf extracts (with concentration 0.5 mg/0.05 ml olive oil) could increase uterus diameter, mucous layer thickness, lumen epithelial cell height, and glandular epithelial cell height if it was compared with aquadest treatments. Compared with ethinyl estradiol as standard estrogen, handeuleum leaf extracts have lower effects than ethinyl estradiol.
STUDI KANDUNGAN LOGAM BERAT DALAM DAGING IKAN DARI TAMBAK YANG DEKAT DAN YANG JAUH DARI DAERAH INDUSTRI Indrajati Kohar; Ryanto Budiono; Diana Indriany; Nanik S. Wilujeng
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/443

Abstract

Water pollution lately is often becomes an important topic due to its correlation with health. Heavy metals that accumulated in human body mostly come from food. One kind of food that used to be contaminated by heavy metals is fish. Therefore it is interesting to study the heavy metals content in fish, whether it comes from industrial contaminated water. Study on the content of heavy metals Cr, Cu, Pb and Zn in ponds near and far from industrial areas has been conducted. The chosen areas were one from Sidoarjo area and one from Babat area, both are located in East Java. Samples were the meat of fish called tilapia (from Sidoarjo area), and milkfish and goldfish (from Babat area), also the water and mud from the ponds. Analytical method was wet destruction. Measurement of heavy metals content was done by Inductively Coupled Plasma Spectrometer (ICPS). In Babat area’s pond water was not found neither Cr, Cu, Pb nor Zn, while Zn was detected in Sidoarjo area’s, however, it was under the limit of detection. The mud of both ponds contained Cr, Cu, Pb and Zn. The goldfish contained only Cu and Zn, whereas the tilapia and milkfish contained Cu, Pb and Zn, however the metals content were not exceeded the maximum limit stated in the PPOM regulation No. 03725/B/SK/VII/89.
PENENTUAN PERSENTASE TRANSMISI ERITEMA DAN PIGMENTASI BEBERAPA MINYAK ATSIRI Widji Soeratri; Noor Ifansyah; Soemiyati; Epipit
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/444

Abstract

Prolonged and repetitive skin exposure to the sunlight can cause several disadvantageous effects. The harmful UV radiation of sunlight includes UV-A, which is implicated in tanning, photo aging and UV-B, which is especially responsible for erythema. For protecting the skin against UV light, the pharmaceutical sunscreen products with several active ingredients include natural product-essential oils are used. In this experiment we have investigated the effect of several essential oils as protection of the skin against UV light. The essential oil that used in this experiment were Lavender oil, Kenanga oil, Nilam oil, Geranium oil, Rosemary oil, Neroli oil, and Rose Moroccan oil. The sunscreen effectiveness determination was performed in vitro by determine their percentage of erythema transmission and percentage of pigmentation transmission employed spectrophotometer at wavelength 292.5–372.5 nm. The results showed only lavender oil was effective as sunscreen with the percentage of erythema transmission and percentage of pigmentation transmission was 9.94% and 80.15%, respectively. It was categories as suntan.
PENINGKATAN KADAR PATCHOULI ALCOHOL PADA MINYAK NILAM (Pogostemon cablin Benth) DENGAN METODE DISTILASI FRAKSINASI VAKUM Rahma Isfaroiny; Mitarlis
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/445

Abstract

The quality of nilam (Pogostemon cablin Benth) oil depend on it patchouli alcohol value. At there time nilam farmers just has produced nilam oil with patchouli alcohol value about 26–28%. To increase this value, fractional vacuum distillation had been done in this study. Nilam oil has been isolated from drying leaf of nilam plant. Patchouli alcohol in this oil was analyzed by gas chromatography, next the oil was distillated by fractional vacuum and the patchouli alcohol was determined from each fraction. This study showed that fractional vacuum distillation of nilam oil gives a higher patchouli alcohol value. The increasing was 23.3387%; from 35.022% at nilam oil before fractination vacuum distillation to 58.3515% at the third fraction from fractional vacuum distillation. In fact, the fourth fraction had the highest patchouli alcohol, but it had dark colour so isn’t fill the standard quality.
KONSUMSI DAN EFISIENSI PAKAN PADA IKAN KERAPU BEBEK (Cromileptes altivelis) YANG DIPUASAKAN SECARA PERIODIK Edy Yuwono; Purnama Sukardi; Isdy Sulistyo
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 10 No 2 (2005): June 2005
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/446

Abstract

The objective of the research was to find out the effect of repeating cycle of feed deprivation followed by fixed refeeding on the food consumption and feed efficiency of grouper Cromileptes altivelis. The experimental fish weight was 10.86 ± 1.42 gram. The treatments included: (P1) group received repeating cycles of 1 day food deprivation followed by 2 days refeeding in 14 cycles; (P2) group received repeating cycle of 1 day food deprivation followed by 3 days refeeding in 10 cycles; (P3) group received repeating cycle of 1 day food deprivation followed by alternating 2 and 3 days refeeding in 12 cycles and; (K) group fed daily as control. Each treatment was assigned to 3 aquaria containing 150 l recirculated sea water according to completely randomized design. Twenty individuals were stocked in each aquaria. The fishes were fed with floating pellet twice a day at 09.00 and 15.00 to satiation for four weeks. Water quality was monitored. The results showed that repeating cycle of food deprivation followed by fixed refeeding affected food consumption and feed efficiency in grouper Cromileptes altivelis. Food consumption of fishes from treatment groups showed lower food consumption than control, but they showed higher daily food consumption and feed efficiency. This phenomenon could be applied in practical feeding management for application to mariculture.

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