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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 Authors are encouraged to submit complete unpublished and original works that are not under review in other journals.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 Authors are encouraged to submit complete unpublished and original works that are not under review in other journals.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 8 Documents
 1 
Search results for , issue "Vol 6 No 2 (2001): June 2001" : 8 Documents clear
KAJIAN INTENSITAS PENAUNGAN DAN PENJARANGAN BUAH TERHADAP HASIL TANAMAN ARBEI Fragariasp Dwie Retna Suryaningsih
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/489

Abstract

This study was done in “Materia Medica�, Technical Implementation Unit East Java Health Service Bureau, Batu, East java, from May to December 1995. It has an altitude of approximately 750 m above sea level. This study has the objective of determining light intensity and fruit thinning which maximize strawberry yield of high quality. A three replicate two factors experiment, laid out in a completely randomized design with repeated measurements were. The first factor was shading intensity consisting of three levels: unshaded, shading intensity of 40% and 65%. The second factor was fruit thinning consisting of three levels: no fruit thinning applied, fruit thinning of 40% and 60%. The result indicated that: (1) maximum growth and yield of strawberry was attained at 40% incoming light, (2) removing 40% of fruits in a cluster increased weight of individual fruit, (3) shading which passed 40% of incoming light coupled with fruit thinning of 40% was the best combination, (4) shading increased vitamin C content of strawberry fruit, and (5) yield components might be predicted from tiller number, flower number per plant, and fruit weight average.
STUDI PENGARUH UMUR DAN TINGGI BATANG TERHADAP STRUKTUR SERAT SIFAT FISIK MORFOLOGI DAN KIMIA BATANG BAMBU APUS Gigantochloa apus Kurz Hery Purnobasuki
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/491

Abstract

Characteristic and anatomical study of Gigantochloa apus was carried out to know the fiber structure, morphological, physical, and chemical properties on various age and part of culm height. The research was done by ex post facto design and the data was analyzed by observational description. For anatomical observation, materials were processed using paraffin, PEG, and wood method and maceration for fiber structure. The result showed that inter-nodus amount, diameter, and wall thickness was increase in older culm. Fiber length was 3.8 mm in average, and older culms have longer fiber than the young ones and within the same culm, the lower part had longer fibers than the upper part. The fresh density (0.97-1.17 g/ml) and the oven dry density (0.57-0.79 g/ml) of this bamboo, it was higher for the older culm than younger culm. Liquor sorption (in NaOH 5% solution) into bamboo chips was fairly good. The sorption into the young bamboo was faster and better than into older bamboo. Young bamboo culms contain more water than older culms and the top part within the same culm contain litte water than lower part. The total cellulose in young bamboo culm was higher than the older (64%-54%), but the lignin on the contrary in lower (14%-28%). At the bottom part, the lignin was higher than the upper prt. The ash content was high (1.6%-4.5%) and its fluctuated based on age and the height part of culm.
KARAKTERISASI EKSTRAK KASAR LIPASE Rhizopus stolonifer UICC 137 Sri Sumiarsih
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/492

Abstract

There is an increasing commercial interest in enzymatic production of biologically active component, because there are a number of well-known advantages compared to chemical synthesis. One of the most valuable synthetic features of enzyme is their ability to discriminate between enantiomers of racemic substrates. Lipase have become of great interest to the chemical industries wing their usefulness in both hydrolytic and synthesis reactions. The aim of this work was to study the production of lipase by Rhizopus stolonifer UICC 137, and determine the crude lipase preparation characteristics. The lipolytic activity was determined by titrimetric method toward oil-arabic gum emultion as a substrate. The strain produced lipase at appreciable lipolytic when cultivated for 72 hours in medium containing 3% glucose and 1% olive oil. Our data suggest that the strain produced lipase since the exponential phase of its growth. Lipase with optimum lipolytic activity was obtained at late stationary phase. The optimum condition for lipolytic activity measurement were pH of 7.5 and temperature 37oC, the crude enzyme had a specific activity 20.2 unit/ mg protein, the Vmax was 15.1 mol/ min and KM was 12.5 mg/ ml. The crude enzyme retained 79.9%, 68.0% and 52.6% of its lipolytic activity, when incubated for 90 minutes at temperature of 40, 50, and 60oC respectively.
HERPETOFAUNA DIVERSITY OF UJUNG KULON NATIONAL PARK AN INVENTORY RESULT IN 1990 Hellen Kurniati; William Crampton; Anna Goodwin; Andrew Lockett; Steven Sinkins
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/493

Abstract

A seven week study of the Ujung Kulon National Park, West Java, Indonesia was conducted between July 29 and 17 September 1990. The purpose of the study was to compile an inventory of the reptile and amphibian species present in the National Park. 14 Anura, 16 Lacertilia, 17 Ophidian, 2 Testudinta and one Crocodile species were identified. Two Lacertilia, one Testudinata and 10 Ophidiasprecies are new record for the park. A tentative comparison was made between our result and a study of the region by Martens (1957) in 1955 and 1956. Management suggestion for the conservation of herpetofauna of Ujung Kulon National Park are discussed along with suggestion for further research.
MENYIAPKAN MEDIA TUNGGAL UNTUK Drosophilla SECARA ALAMI G Wayan Seregeg; Endang Susantini; Ita Ayu Rianawati
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/496

Abstract

Preparing some media for Drosophilla in Indonesia both for research and education is still facing a big problem. Importing them from some advanced countries needs a big money, spare time, and great effort. Besides, the medium arrival in Indonesia is not always on time scheduled. Naturally, the food for Drosophilla is the fruits which have fragrant smell and sweet. The problem is that the fruit becomes damaged and covered with mold in a very short time, i.e. 5-7 days while the life cycle of Drosophilla takes 10-12 days. The natural media can be made durable if they are supplemented with some preservative. But, the new trouble arises, that is the lack of preventives availabilities. This study aims at preparing some single media naturally which are easily gained, cheap, natural (without preservative) but durable. The method of preparation is very simple. That is, take one ripe fruit, grinderred it, then put it into the bottle. That is meant by the natural single medium. The research result are as follows: (1) the pineapple (medium) lats 43-46 days; (2) black rise “tape� (fermented food) 31-33 days; (3) white rise “tape� 29-31 days; (4) white cassava “tape� 28-30 days and yellow cassava “tape� 20-25 days. It can be concluded that the pineapple medium and the naturally fermented media are durable.
EFEK AMFETAMIN TERHADAP ULTRASTRUKTUR SEL SPERMATOGENETIK TIKUS Alfiah Hayati
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/497

Abstract

The research was conducted to evaluate the effect of amphetamine as pshycostimulan drug on ultrastructure spermatogenic cells of male rats (Rattus norvegicus L.). Ultrastructure spermatogenic cells described from six male rats of Wistar strain. They were divided in to 2 groups (control and treatment group). Four mg/kg/days amphetamine were given sub-cutaninjection. In control to injection with physiologic saline. The last of the treatment the rat were killed after 100 days the amphetamine injection. The testis were released into fixative solution. Ultrastructure morphologic analysis of the testis were evaluate of quantitative to assess the effect of amphetamine on spermatogenic cells. Observation of spermatogenic cells (Spermatogonia, Spermatocyte, and Spermatyd cells) were done under the electrone microscope. The result of this experiment showed different morphologically from the amphetamine- treated group and their respective control. In the treatment groups, Spermatogonia, Spermtocyte, and spermayd cells less endoplasmic reticulum than normal spermatogenic cells (control). More vacuolization in membrane line of Spermatogoium cells and in cytoplasm of Spermatocyte, and Spermatic cells than normal spermatogenic cells (control).
PENGKAJIAN BERBAGAI KONSENTRASI RAGI ROTI UNTUK PERTUMBUHAN PLANLET TEBU Saccharum spp var PS 61 IN VITRO Edy Setiti Wida Utami; Dwi Setyo Rini; Eka Sugiyarta
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/499

Abstract

This experiment was expect for the find of alternative substitution of dalapon’s herbicide, its have active materials as 2,2 dichloropropionat acid. The fuction of dichloropropionat is very important on the differentiation and growing of sugarcane plantlet. The purpose of the research was to know the effect some concentration of Baker’s yeast that consist Saccharomyces cereviceae to growth of sugarcane (Saccharum spp) var PS61 plantlet. This experiment was arranged in a Completely Randomized Design with eight treatments and four replications. The treatment were: (K) control; (Po) without dalapon’s herbicide and Baker’s yeast; (0.25 g/l) medium; Bakers yeast 0.5 g/l medium; (P0.75) g/l medium; (P1.0) Baker’s yeast 1.0 g/l medium; (P1.25) Baker’s yeast 1.25 g/l medium; (P1.5) Baker’s yeast 1.5 g/l medium. The observation was done by destruction of the media every two weeks until the twelve weeks to the height of shoots, and length of primary roots. The result of this experiment showed that the application of Baker’s yeast media could be increasing the heigh of shoots and the length of primary roots. Concentration of Baker’s yeast that the suitable for growing of the sugarcane plantlet is 0.25 mg/l.
EKSPLORASI DAN UJI BIOLARVASIDA FRAKSI DAUN TANAMAN MARGA Annona TERHADAP LARVA NYAMUK Aedes aegypti DAN Culex quinquefasciatus Hamidah Hamidah
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/500

Abstract

The research aim wants to know: (1) Lethal Concentration (LC90) leaves fraction of Annona muricata, Annona squamosal, and Annona reticulate that caused death of third instar larvae of Aedes aegypti and Culex quinguefasciatus. The experimental method was used in research with completely random design. Each concentration was replicated five times. After introducing bioassay was done, five concentration used at real bioassay. For knowing LC90 from leaves fraction of Annona muricata, Annona squamosa and Annona reticulata, the data was analyzed by probit analysis. The result from this research showed that LC90 of leaves fraction methanol of leaves fration methanol was the highest of Annona squamosa (404 ppm) and the lower LC90 was leaves fraction n.heksa Annona reticulata (1894 ppm).

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