cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. banyumas,
Jawa tengah
INDONESIA
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal
Published by Universitas Jenderal Soedirman
ISSN : 08531629     EISSN : 08531629     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
Majalah Ilmiah Biologi Biosfera : A Scientific Journal merupakan peer reviewed jurnal yang diterbitkan oleh Fakultas Biologi Universitas Jenderal Soedirman. Media ini mewadahi hasil-hasil penelitian di bidang biologi tropika yang terbit tiga kali setahun (Januari, Mei, September).
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue "Vol 29, No 2 (2012)" : 8 Documents clear
Uji Mikrobiologis dan Organoleptik Jus Tomat Hasil Fermentasi Lactobacillus plantarum dan Lactobacillus delbruekii sebagai Functional Food dengan Konsentrasi Starter Berbeda Dwi Soertina; Dyah Fitri Kusharyati; P. Maria Hendrati
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.240

Abstract

Tomato juice can be used as an alternative health drinks readily accepted by society because it tastes good and refreshing, affordable and beneficial to health because contain high nutritional content. Fermentation in this study using a mixed culture of Lactic Acid Bacteria (LAB) of Lactobacillus plantarum and L. delbruekii isolated from fruits and vegetables pickle. The accuracy of starter concentration is one of the factors that affect the quality of a product of fermented beverages. The purpose of this study was to determine the ability of mixed cultures of L. plantarum and L. delbruekii in tomato juice to ferment with different starter concentrations (0%, 5%, 6%, 7% and 8%), and to know best starter concentration that can produce the highest levels of lactic acid fermentation of tomato juice. The results showed that tomato juice fermented LAB isolated from vegetables and fruits pickle resulted in a total lactic acid increased with increasing concentration of the starter during 6 hours incubation time ranging from 0.42% - 0.8%, the number of cell 1, 08 x 109 - 1.57 x 109 cfu/ml, medium pH values ranged from 4.03 - 4.16 units, as well as reduction sugar content between 2.78% - 13.07%. These results were supported also by results of organoleptic test by a score of taste 3.05 (acid), score of aroma 2.75 (sharp), score of color 3.95 (red-yellow) and score of predilection level 2.30 (rather like).
Pentingnya penggunaan Aedes aegypti (Diptera: Culicidae) strain rentan insektisida serta kandang ukuran tertentu dalam uji efikasi insektisida aerosol Andreas D. Advento; Intan Ahmad; Nova Hariani; Resti Rahayu
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.236

Abstract

Before insecticide formulations can be registered and commercialized, efficacy of  the insecticide should be carried out by an independent institution such us universities or research institutes.  Based on the available protocol issued by the Pesticide Committee, we tested the efficacy two aerosol insecticides i.e. Baygon® and HIT® on Jakarta strain, Bandung strain, and Surabaya strain of Aedes aegypti, including the VCRU standard susceptible strain, confined in two cages with different dimensions inside the Peet-Grady chamber. The findings show that each of the four strains of Aedes aegypti had a significantly different KT50 value after being exposed to Baygon® and HIT® with the VCRU strain had the fastest KT50 among other strains.The results also show that all strain of Aedes aegypti tended to have higher KT50 (knockdown time 50%) when treated inside the large cage (30x30x30 cm) than those in the smaller cage (15x15x15 cm)  even though treated with the same insecticide. The finding of this research suggests that it is imperative that the design and the protocol of insecticide efficacy test issued by the Pesticide Committee should state clearly the strain of Aedes aegypti being used as well as the dimension of the cage inside the Peet-Grady chamber. Herewith we suggest that standard insecticide susceptible Aedes aegypti  strains such as VCRU  as well as  15 X 15 X 15 cm cage are to be used for the mosquito aerosol efficacy test in the Peet-Grady chamber.
Pengaruh Pemberian Kombinasi Pakan Ikan Rucah dan Pakan Buatan (Pelet) terhadap Pertumbuhan dan Laju Sintasan Rajungan (Portunus pelagicus) Suharyanto Suharyanto
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.241

Abstract

The aim of this experiment was to find out the data and information of effect on feeding of combination of trash fish and pellet to the growth and survival rate of swimming crabs (Portunus pelagicus). The research was conducted in the research station of Research Institute for Coastal Aquaculture, Maros, South Sulawesi for 40 days. Nine  aquaria were used in this research and the dimention were 60 x 40 x 40 cm. Experimental disign used the Complete Randomized Design, The treatments were applied of trash fish and artificial feed (pellet) i.e. A; 100% trash fish (Clupea sp), B; 100% artificial feed (pellet), and C; 50% trash fish + 50% pellet,  with three replicates,  respectively, Crablet were applied average size of  5,2 + 0,2 mm in charapace width and 0,04 + 0,02 g in body weigth. Feeding were conducted of three times a day, with dosage 15 % of total body weight a day. During the experiment, the determined parameters were body weight, charapace width, and survival rate. The result showed that artificial feed/pellet of 42% protein contain could be used as feed in swimming crabs rearing and not significant different on the growth of charapace width, body weight and survival rate (P>0.05) with the other treatment.
Distribusi Geografis Tungau Parasit Nyamuk Aedes Sp. di Daerah Endemis Demam Berdarah Dengue di Propinsi Jawa Tengah Bambang Heru Budianto; Retno Widiastuti
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.237

Abstract

The geographical distribution patterns of parasitic mites determine the types of parasitic mites that should be developed in these endemic geographical regions. Types of parasitic mites and the patterns of geographic distribution of parasitic mites of Aedes sp. in dengue endemic areas in Central Java Province have not been determined yet. The purpose of this research was to determine the parasitic mite and geographical distribution patterns in dengue endemic areas in Central Java Province. All stages of the experiment were conducted by using a survey method with random sampling technique. Sampling area for Semarang City included the counties of Central Semarang and Tembalang, whereas for Banjarnegara including the villages of Krandegan, Kutabanjar, Parakancanggah, and Sokanandi, and the county of Karanganyar City, Karanganyar. Larvae, pupae and adult stages of Aedes mosquitoes. were sampled during the rainy season. Types of parasitic mites were identified using Walter & Proctor (1999), Pesic (2003) and Gerecke (2004) references. The average value and variance were analyzed for the number of each stage to determine the geographic distribution pattern of parasitic mites. The infection ability was determined by the average intensity of parasitic mites and the prevalence value. The results demonstrated that the families of parasitic mites that infect the larvae of Aedes sp. in dengue endemic areas in Central Java Province were Pionidae 1, Histiostomatidae, Hydryphantidae, Hydrachnidae 1, Arrenuridae, Hydrachnidae 2 and Pionidae 2.  Based on the frequency of occurrence, prevalence and the ability to infect, it was concluded that family Histostomatidae is a potential candidate for biocontrol agent of Aedes sp larvae. The distribution pattern of  parasitic mite families in endemic areas of dengue fever in Central Java Province, showed a random distribution pattern.
Penggunaan Ekstrak Rimpang Lengkuas untuk Mengendalikan Busuk Leher Akar pada Tanaman Terong (Solanum Melongena L.) Juni Safitri Muljowati; Eddy Tri Sucianto
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.243

Abstract

A research to find antifungal activity of galanga rhizome  (Alpinia galanga L.) on Sclerotium rolfsii  as the causal agent of white mold and stem rot disease on eggplant has been done.  The galanga extract was obtained by extracting the rhizome using ethanol solvent.  The experiment design was Completely Randomized Design (CRD) in a factorial pattern, involving two factors, i.e. the rhizome extract concentration (E) with six levels of 0%, 5%, 10%, 15%, 20%, and 25%; and application time (W) with two levels of  three days interval and seven days interval.  The result showed that the best extract concentration was 20% that was applied in three days interval.
Aktivitas Antifungi Ekstrak Etanol Daun Salam (Syzygium polyanthum (Wight) Walp.) terhadap Pertumbuhan Jamur Candida albicans secara in vitro Any Fitriani; Yanti Hamdiyati; Ria Engriyani Ria Engriyani
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.238

Abstract

Antifungal activity of the ethanol extract of bay-leaf (Syzygium  polyanthum (Wight) Walp.) against growth of the fungus Candida albicans in vitro has been conducted. Leaves of S. polyanthum has been known to have potential as antifungal for skin fungal pathogen. This study aims to determine antifungal activity of the ethanol extract of S. polyanthum leaves against growth of C. albicans.  Activity test was done by disc-diffusion  method and macro-dilution. This study used concentrations of ethanol leaf extract of S. polyanthum of 0.5%, 1%, 1.5%, 2%, and 2.5% (w/v). Negative control using 1% DMSO and positive controls using ketoconazole 30 mg/mL. The results shows that ethanol extract of leaves of S. polyanthum have activity as an antifungal. Ethanol extract of leaves of S. polyanthum based on the results of GCMS analysis of compounds containing chemical compounds such as terpenoids and fatty acids. Ethanol extract of leaves of S. polyanthum showed the highest inhibition zone diameter at a concentration of 1% (w/v) of 9.32 ± 0.21 mm. Value of Minimum inhibitory Concentration (MIC) for ethanol leaf extract of S. polyanthum present in a concentration of 0.5% (w/v) and the value of Minimum Fungicidal Concentration (MFC) present in a concentration of 1% (w/v).
Karakteristik Gambut Rawa Pening dan Potensinya sebagai Bahan Pembawa Mikroba Prihastuti Prihastuti
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.244

Abstract

The descriptive analytical study of the Rawa Pening peat soils characteristic has been done. This study was purposed to determine the potential of peat soils as a microbial carrier. The parameters observed were chemical properties (pH, levels of C, N, P, K and CEC) and biological properties (total of soil microbial population), and its amendments by air drying, ovens drying and sterilization process with autoclave (temperature of 121o C, pressure 1.5 atm for 15 minutes).  The results showed that Rawa Pening peat soil has the content of high organic C, medium-high N, low-medium P, high K and high CEC. Total of soil microbial population is quite high, and reduced by air drying and autoclave sterilization. The population of soil microbe has pressured with oven drying, but the process makes it a low pH which was caused by the cell lysis.  The Rawa Pening peat soils has physical properties that are not easily changed, is also not prone to changes in pH during the process by air drying and sterilization with autoclave. The Rawa Pening peat soils have a potential to be a microbial carrier, because it has high organic matter content, and easy at processing.
Struktur, Komposisi serta Potensi Tumbuhan Bawah sebagai Tumbuhan Obat di Hutan Heterogen di Desa Cikakak Kecamatan Wangon Kabupaten Banyumas Sulistyani Sulistyani; Erie Kolya Nasution; Hexa Apriliana Hidayah
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 2 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.2.239

Abstract

A research entitled “The structure, Composition and Potency of Ground Vegetation as Medical Plants in Heterogenous Forest at Cikakak Village Wangon Subdistrict banyumas Regency” aims to find out the structure and composition of ground vegetation species and ground vegetation that have a potency of medicalplants. Material and tools usud in this reseach were ground vegetation  is sublimat, GPS, altimeter, thermohygrometer,  soiltester, luxmeter, plastic bags, rollmeter, sasak. The research were used survei methode and square plots quadrate methode used a sampling method. The result of the observation showed that ground vegetation composition of heterogenous forets at Cikakak village Wangon subdistrict Banyumas regency was builled from 72 species belonging to 33 families  and  order from the most to the least abundance habitus were follow herb 49 species ,shrub 11 species, seedling 8 species, and liana 3 species. The result of the reseach ground vegetation potency as big enough medical plants ist 65,27 %.

Page 1 of 1 | Total Record : 8

 1 

Filter by Year

2012 2012


Reset
Filter By Issues
All Issue Vol 40, No 3 (2023) Vol 39, No 3 (2022) Vol 39, No 1 (2022) Vol 38, No 3 (2021) Vol 38, No 2 (2021) Vol 38, No 1 (2021) Vol 37, No 3 (2020) Vol 37, No 2 (2020) Vol 37, No 1 (2020) Vol 36, No 3 (2019) Vol 36, No 2 (2019) Vol 36, No 1 (2019) Vol 35, No 3 (2018) Vol 35, No 2 (2018) Vol 35, No 1 (2018) Vol 34, No 3 (2017) Vol 34, No 2 (2017) Vol 34, No 1 (2017) Vol 33, No 3 (2016) Vol 33, No 2 (2016) Vol 33, No 1 (2016) Vol 32, No 3 (2015) Vol 32, No 2 (2015) Vol 32, No 1 (2015) Vol 31, No 3 (2014) Vol 31, No 2 (2014) Vol 31, No 1 (2014) Vol 30, No 3 (2013) Vol 30, No 2 (2013) Vol 30, No 1 (2013) Vol 29, No 3 (2012) Vol 29, No 2 (2012) Vol 29, No 1 (2012) Vol 28, No 3 (2011) Vol 28, No 2 (2011) Vol 28, No 1 (2011) Vol 27, No 3 (2010) Vol 27, No 2 (2010) Vol 27, No 1 (2010) Vol 26, No 3 (2009) Vol 26, No 2 (2009) Vol 26, No 1 (2009) Vol 24, No 3 (2007) Vol 24, No 2 (2007) Vol 24, No 1 (2007) Vol 23, No 3 (2006) Vol 23, No 2 (2006) Vol 23, No 1 (2006) Vol 22, No 3 (2005) Vol 22, No 2 (2005) Vol 22, No 1 (2005) More Issue