cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Irwan Effendi
Contact Email
natur@ejournal.unri.ac.id
Phone
+62811764031
Journal Mail Official
kurniawanronal09@gmail.com
Editorial Address
Kampus Bina Widya KM. 12,5 Simpang Baru, Tampan, Pekanbaru 28293 Indonesia
Location
Kota pekanbaru,
Riau
INDONESIA
Jurnal Natur Indonesia
Published by Universitas Riau
ISSN : 14109379     EISSN : 25030345     DOI : https://doi.org/10.31258/jnat
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry
Jurnal Natur Indonesia published since 1998, is a science journal that presents articles on research results, thoughts and views from researchers and experts in the field of biosciences (basic science), including biology, physics, chemistry and mathematics. In the field of biosciences (basic science); Biology, Physics, Chemistry, Mathematics.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 15 Documents
 1   2 
Search results for , issue "Vol 13, No 3 (2011)" : 15 Documents clear
Penapisan Bakteri Simbion Gastropoda Stramonita armigera Penghasil Senyawa Antibakteri Multi Drug Resistant dari Perairan Ternate Pringgenies, Delianis; Dananjoyo, Mijil Ciptaning
Jurnal Natur Indonesia Vol 13, No 3 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.733 KB) | DOI: 10.31258/jnat.13.3.200-206

Abstract

Antibiotic resistance is an ability of bacteria to hold the antibiotic effect. It was reported that there is a human-patogen bacteria that resistance to one or more classes of antibiotic. It become a problem on medical world. Tosolve those problems, it is necessary to search the new antibiotic compounds that more effective and efficient tosolve the problem of Multi Drug Resistance (MDR). The secondary metabolite-producing marine invertebrates andsymbiont microorganisms, have prospect as an antibiotic. The symbiont microorganisms may produce thesecondary metabolite similar to their host. The aims of the reseach were to determinate of gastropods symbiontbacteria that capable of producing Antibacterial MDR (Multi Drugs Resistant) Compound. Sample of Molusc werecollected from Ternate (Molucas) islands. Isolation of symbiotic bacteria, screening for bacteria which producingsecondary metabolites as anti-MDR bacteria, antibacterial test, isolation of clinical pathogenic bacteria (MDR),conducting anti-bacterial sensitivity test, sensitivity test for antibacterial, DNA exctraction, DNA amplificationbased on PCR method, DNA sequencing. Result of 16S r-DNA sequence was then analyzed and edited usingGENETYX program and followed by 16S rDNA sequence analysis. The result showed that 17 strains were isolatedfrom gastropods Stramonita armigera. Antibacterial assays showed that TSA 8.7 isolate have ability to inhibitPseudomonas sp., Escherichia coli dan Enterobacter sp. the molecular analyses showed that isolate TSA 8.7closed by related to Vibrio sp. Strain JZDN1, with 98% of homology. Based on this experimental result, it could beconcluded that gastropods-symbiont bacterium Stramonita armigera capable of producing antibacterial compoundagainst strain Multi Drug Resistant (MDR). There is 11 isolates of gastropods-symbiont bacteria Stramonita armigerathat have an antibacterial MDR activity.
Kemampuan Beberapa Spesies Jamur Tanah dalam Mengendalikan Globodera rostochiensis (Woll.) pada Tanaman Kentang Kalay, Agusthin Marthin; Natasasmita, Sadeli; Suganda, Tarkus; Simarmata, Tualar
Jurnal Natur Indonesia Vol 13, No 3 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (57.202 KB) | DOI: 10.31258/jnat.13.3.214-219

Abstract

Potatos cyst nematode (Globodera rostochiensis Woll.) in Indonesia has been find for the first time in Malang EastJava. This nematode suppress potato growth and caused yield looses up to 70.63%. Examination the ability of soilfungus Fusarium oxysporum TR1, F. solani TR2, F. oxysporum KT1, F. chlamydosporum KT2, F. oxysporum SM1,Paecilomyces lilacinus SM3, and F. chlamydosporum SM4 dalam pengendalian G. rostochiensis againsit G.rostochiensis on susceptible potato has been carried in out the green house, using Randomized Block Design withfour replication. Results showed that all of the seven fungi had the capacity to parasite G. rostochiensis. Inoculationof P. lilacinus SM3, F. chlamydosporum SM4, F. oxysporum KT1, and F. oxysporum SM1 decreased female populationto 58.56%, 59.09%, 60.76%, and 61.01% respectively compared to that without inoculation. While the other fungionly decrease female population up to 50%. The impact of male population reduction was the enhancement oftuber weight of potato. Adult male nematode was not found in this experiment.
Trapping Activity of Nematode-Trapping Fungus Arthrobotrys dactyloides on the Presence of Sawdust, Microorganisms, and Nematodes Sudirman, Sudirman; Zawani, Karwati
Jurnal Natur Indonesia Vol 13, No 3 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.8 KB) | DOI: 10.31258/jnat.13.3.178-186

Abstract

Once biological control agents of nematodes are introduced into soil, they must function in a very complex and dynamicenvironment. In soil, both nematodes and their antagonists are influenced by other biotic and abiotic factors. However,our knowledge of the effects of these factors in soil is limited. Hence, instead of focusing on the role of individualorganisms in controlling nematode pests, this research aimed to determine the effects of sawdust, microorganisms,and nematodes on trapping activity of Arthrobotrys dactyloides. Experiments were conducted with “standardslide test” and “soil microcosm” using soil amended with various concentrations or without sawdust, with thepresence or the absence of microorganisms, and with the presence or the absence of nematodes (Caenorhabditiselegans and/or Meloidogyne javanica). The experiments were carried out with completely randomized design anddata were analyzed with analysis of variance followed by Tukey’s Honestly Significant Different test. Resultsshowed that sawdust did not have direct effect on ring formation and trapping activity of A. dactyloides. However,sawdust did have effect on microorganisms and C. elegans which then these two factors stimulated ring formationand trapping activity of A. dactyloides.
Proses Pembuatan Hidrolisat Protein Ikan Rucah Koesoemawardani, Dyah; Nurainy, Fibra; Hidayati, Sri
Jurnal Natur Indonesia Vol 13, No 3 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.008 KB) | DOI: 10.31258/jnat.13.3.256-261

Abstract

This study aimed to find optimum manufacturing trash fish protein hydrolyzate using the commercial papainenzyme. It is known that fish protein hydrolysates have good functional properties, so it is more widely utilized,especially for food. The study was conducted in two stages, the first stage was to make trash fish protein hydrolyzatetreated with enzyme concentration of 3%, 5%, 7% (w/w), and pH 5; 5.5; 6; 6.5; 7, whereas second stage was to maketrash fish protein hydrolyzate with same from the first stage and so the best treatment followed by treatment ofhalf-hour long incubation and one hour. Parameters observed were soluble protein, foamability, fat binding capacityand emulsion stability. The treatment was repeated three times and the first phase of data analysis using advancedtesting LSD and the second stage using the T test. Results show that the best soluble protein to produce a trashfish protein hydrolyzate enzyme was at a concentration of 5% and pH = 6.5 that was equal to 19.71%. In half an hourincubation produce higher soluble protein values and foamability that were equal to 24.97% and 9.63%, while thebinding capacity of fat in one hour incubation produces a higher value that was equal to 5.03%. Meanwhile, emulsionstability did not differ significantly at both incubation time.
Pengaruh Suhu terhadap Perkembangan Pradewasa Parasitoid Eriborus argenteopilosus Cameron (Hymenoptera: Ichneumonidae) Nelly, Novri; Habazar, Trimurti; Syahni, Rahmat; Buchori, Damayanti
Jurnal Natur Indonesia Vol 13, No 3 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (55.996 KB) | DOI: 10.31258/jnat.13.3.250-255

Abstract

Temperature effect on development time of the preadult parasitoid Eriborus argenteopilosus Cameron(Hymenoptera: Ichneumonidae) were studied to know development time, degree days and survival rate.Crocidolomia pavonana (Fabricius)(Lepidoptera: Pyralidae) larvae was exposed to E. argenteopilosus female andreared at four different temperatures i.e 160C, 200C, 250C and 300C. Data were analyzed using anova and linearregression to calculate degree day. At 200C E. argenteopilosus showed the highest degree day and survival rate(18.67 %), while at 300C nothing adult parasitoid emergenced. Degree day to development time of parasitoid attemperature 200C i.e fase egg-adult: 300.05; egg-pupae 173.35; pupae-adult 171.

Page 2 of 2 | Total Record : 15

 1   2 

Filter by Year

2011 2011


Reset
Filter By Issues
All Issue Vol. 22 No. 2 (2024): October Vol. 22 No. 1 (2024): April Vol 21, No 1 (2023): April 2023 Vol 21, No 2 (2023): October Vol. 21 No. 2 (2023): October Vol. 21 No. 1 (2023): April Vol 20, No 2 (2022): Oktober 2022 Vol 20, No 1 (2022): April 2022 Vol 19, No 2 (2021): Oktober 2021 Vol. 20 No. 2 (2022): October Vol. 20 No. 1 (2022): April Vol 19, No 1 (2021): April 2021 Vol. 19 No. 2 (2021): October Vol. 19 No. 1 (2021): April Vol 18, No 2 (2020): oktober Vol 18, No 1 (2020) Vol 17, No 2 (2019) Vol 17, No 1 (2016) Vol 16, No 2 (2016) Vol 16, No 1 (2014) Vol 15, No 2 (2013) Vol 15, No 1 (2013) Vol 14, No 3 (2012) Vol 14, No 1 (2012) Vol 14, No 1 (2011) Vol 13, No 3 (2011) Vol 13, No 2 (2011) Vol 13, No 1 (2010) Vol 12, No 2 (2010) Vol 12, No 1 (2009) Vol 11, No 2 (2009) Vol 11, No 1 (2008) Vol 10, No 2 (2008) Vol 10, No 1 (2007) More Issue