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Jurnal Natur Indonesia

JN
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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 306 Documents

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Inokulasi Fungi Mikoriza Arbuskula (FMA) Indigenus pada Bibit Jahe untuk Pengendalian Penyakit Layu Ralstonia solanacearum ras 4) Suharti, Netty; Habazar, Trimurti; Nasir, Nasril; Dachryanus, Dachryanus; Jamsari, Jamsari
Jurnal Natur Indonesia Vol 14, No 1 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Bacterial wilt disease caused by Ralstonia solanacearum race 4 is one of factors inhibiting ginger production. The study on ArbuscularMychorrizae Fungus (AMF) in greenhouse was found could reduce of bacteria wilt disease. Experiment design of research was randomizedblock design using 8 isolates. The results showed that inoculation of Arbuscular Mychorrhizae Fungus isolated from healthy gingerrhizosphere as biological diseases control agents could reduces disease severity. Four isolate could reduced disease severity up to 100% andsupport plant growth and production. As the result the seedling formation increased by 50–150%, plant height 36.92–87.56%, the numberof leaf 61.94–162.22% and ginger yield 190.62–400% respectively, compared to the control.

Aktivitas Promoter â-aktin Ikan Medaka Jepang (Oryzias latipes) pada Ikan Mas (Cyprinus carpio) ', Alimuddin; Purwanti, Lola Irma; Ath-thar, MH. Fariduddin; Muluk, Chairul; Carman, Odang; Sumantadinata, Komar
Jurnal Natur Indonesia Vol 11, No 2 (2009)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

This study was conducted to examine activity of medaka (Oryzias latipes) â-actin promoter (mBP) in common carp(Cyprinus carpio) as the first step towards development of common carp transgenic in country. Gene constructpmBP-hrGFP that consists of mBA promoter and humanized Renilla reniformis green fluorescent protein gene(hrGFP) was injected into cytoplasm of one cell stage of common carp by using microinjector. PmBP-hrGFPconcentration used for microinjection was 50 μg/mL aquabides. Parameters observed were survival rate of embryo(SRe), hatching rate (HR) and expression of hrGFP gene. SRe was calculated before eggs hacthed, while hatchingrate (HR) was after all of eggs hatched. The activity of mBA promoter was analyzed by observation of hrGFP genetransient expression using a fluorescence microscope. The results of experiment showed that SRe (87,5%) andHR (79.2%) of control was respectevily higher than that of injected treatment (75.0% & 61.7%). Expression of hrGFPwas observed firstly at blastula (12 hours after fertilization) to 1-day-old larval stages (24 hours after hatching)with higher gene expression at blastula to late gastrula stages. Percentage of micronjected larvae expressinghrGFP at 6 hours after hatching reached 71.6 ± 6.7%. Conclusion was that mBA promoter could drove hrGFPexpression in common carp, hence it can be used to produce common carp transgenic by changing hrGFP withgenes correlated with important traits in aquaculture.

Amobilisasi Inulinase Aspergillus clavatus Gmn 11.3 Galur Lokal Indonesia dengan Matrik Karbon Aktif Saryono, Saryono; R.M, Henny Olivia; Sepriana, Elvita; Dahliati, Andi; A.M, Chainulfiffah
Jurnal Natur Indonesia Vol 10, No 1 (2007)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Two types of inulinase are produced by Aspergillus clavatus Gmn 11.3 within the 3rd and 5th days of fermentation. The optimum condition of two types of immobilized inulinase is achieved using 20 grams of activated carbon, 200 meshes with protein adsorption of 96.71% and 96.19% respectively. Following immobilization of inulinase, incubation was carried out for 30 hours to hydrolyze inulin. After incubation, the proteins retained on the matrix are 66.96% of the 3 days fermentation enzymes and 37.36% for 5 days of fermentation enzyme.

Adsorption Isotherms of Phenol Onto Adsorbents Derived from Egg Shell and Palm-Oil Shell Asyhar, Rayandra
Jurnal Natur Indonesia Vol 13, No 3 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

The adsorption isotherms of phenol from aqueous solution onto adsorbents obtained from egg shell (ESA) andpalm shell (PSA) were investigated. The objectives of the investigation were to understand the effect of bothadsorbents on solution pH and to study the adsorption equilibrium of phenol onto the adsorbents. The effect ofadsorbent on pH of solution was studied by shaking the adsorbent of 0.1 to 1.5 g with 100 ml of acidic aqueoussolution for 30 min at room temperature. The adsorption experiments were performed by stirring appropriateamount of adsorbent with 100 ml of 50 mg/l concentration of phenol at constant temperature and pressure. TheLangmuir and Fraundlich adsorption models were applied to experimental data and the isotherm constants werecalculated using linier regression analysis. The results showed that the adsorption capacity of the adsorbentsincreases with increasing of dosage and contact time. Also, pH of solution affected the adsorption isotherm ofphenol, where maximum adsorption was observed at pH values lower than 9.

Pola Resistensi Bakteri Penyebab Infeksi Saluran Kemih (ISK) Terhadap Antibakteri di Pekanbaru Endriani, Rita; Andrini, Fauzia; Alfina, Dona
Jurnal Natur Indonesia Vol 12, No 2 (2010)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Urinary Tract Infection (UTI) is caused by a variety of microorganism, but bacteries are more often. Antibacterial isthe empiric treatment for UTI. The antibacterial resistance pattern of UTI can be changed by the place and time.Urine culture test and sensitivity test will help us to choose the effective treatment. The purpose of this researchis to find out the pattern of UTI in Pekanbaru. Results of this research showed that UTI bacterial resistancy mostlyfound in Gram negative bacateria with penicillin and 1 st cephalosporin antibiotic.

Efek Pembukaan Lahan terhadap Karakteristik Biofisik Gambut pada Perkebunan Kelapa Sawit di Kabupaten Bengkalis Suwondo, Suwondo; Sabiham, Supiandi; Sumardjo, Sumardjo; Paramudya, Bambang
Jurnal Natur Indonesia Vol 14, No 1 (2012)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Oil palm plantations at peatland are faced with problems of land degraded, low productivity and produced to green house gas (GRG) emission.The objectives of this study were to land clearing effect of peatlands and to identified factors that affect the peatlands in the biophysicalcharacteristics. This study was conducted on District Bengkalis-Riau at marine and brakish peat. The data was collected using field survey anddocumentation. The descriptive analysis was used to determine biophysical characteristics and linier regresion was used to corelation performimportant factors. The research results showed that the biophysical characteristics of peatland experienced changes in the horizon profile,peat thickness, decomposition level, moisture content, ash content, pH, C-organic and biomass. The secondary peat swamp forest ofbiophysical characteristics have to different in the horizon profile, peat thickness, decomposition level, moisture content, ash content, pH,C-organic and biomass compared with marine and brackish peat.

Uji Efek Pelindung Hati Ekstrak Air Tanaman Kulit Lawang, Cinnamomum Cullilaban (Lauraceae), melalui Pemeriksaan MDA dan SOD Plasma Sel Darah Tikus Soeksmanto, Arif
Jurnal Natur Indonesia Vol 13, No 2 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Industrial growth, pollution, and the change of life style cause environmental degradation. This condition enhancesthe occurrence of degenerative diseases that more difficult to conquer than infective diseases. This promotes theuse of herbs in America up to 385% in period 1990-1997, wasting 4–12 billion dollar each year. World HealthOrganization (WHO) estimates approximately 4 billion or 80% of world citizens use herbs for their health care. Kulitlawang plants are medicinal plants grown endemically in Papua and Maluku regions. The existence of the plants inMaluku islands is considered as endangered species. Information on the plants in scientific publication is relativelylimited. meanwhile Cinnamomum sp. is known having high antioxidant compound. This research aimed to find outhepatoprotector effect of kulit lawang water extract through observation of MDA and SOD of venous blood of ratintoxicated with CCl4. Dosage used was based on result of effective dosage test which showed that water extractof kulit lawang plant of 20 mg/kg bw as highest dosage that did not harm animal health. Result of hepatoprotectoreffect test showed that MDA and SOD of control were 230.12 U/ml and 1243.00 ρmol/ml, whereas water extract ofkulit lawang was 414.45 U/ml and 793.00 ρ mol/ml, á-tocopherol 416.42 U/ml and 782.33 ρmol/ml, and curcumin426.07 U/ml and 734.00 ρmol/ml. This showed that water extract of kulit lawang plant has antioxidant propertiesand potential as hepatoprotector of oxidative damage.

Sintesis Tiga Peptida Bergugus Pelindung sebagai Prekursor Komponen Vaksin Influenza Universal Subroto, Toto; Hardianto, Ari; Kahari, Abdul Alim; Pradnjaparamita, Tika
Jurnal Natur Indonesia Vol 15, No 2 (2013)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Current highly effective conventional vaccine to halt the spread of bird flu has not been invented yet because of susceptiblemutation of influenza virus. In spite of undergoing mutation which causes the amino acid sequence change, influenzaviruses maintain conservation at ectodomain of M2 protein, especially M2e(2-16) (SLLTEVETPIRNEW). The use ofconserved epitope M2e(2-16) in epitope-based vaccine potentially produces universal influenza vaccine. In designingepitope-based vaccine, the M2e(2-16) needs to be coupled with T helper epitope, P25, which is subsequently mentioned asM2e(2-16)-K-P25 (SLLTEVETPIRNEWGKKKL IPNASLIENCTKAEL). The M2e(2-16)-K-P25 was synthesized usingconvergent solid phase peptide synthesis strategy because of the size of the sequence. In this strategy, four peptideprecursors of M2e(2-16)-K-P25; SLLTEVETP (F1), IRNEWGK (F2), KLIPNASLI (F3), and ENCTKAEL (F4); were synthesizedin advance. After the precursors ready, coupling reaction was performed to obtain M2e(2-16)-K-P25. In the previousresearch, F3 has been obtained in high purity through Fmoc/tBu solid phase peptide synthesis method. In this conductedresearch, the three remaining precursors; F1, F2, and F4; were synthesized by the same method. Each peptide was analysedby thin layer chromatography, HPLC, and mass spectroscopy methods. F1, F2 and F4 were successfully synthesized andeach of them was detected at 1490.0, 1874.8 and 1881.9 amu, respectively. However, F1 was not possible to purify becauseof its insolubility in various solvents.

Studi Nutrisi Buah Ara (Ficus racemosa L.) untuk Pakan Ikan Aryani, Netti; Zen, Zuhelmi; Syandri, Hafrijal; Jaswandi, Jaswandi
Jurnal Natur Indonesia Vol 12, No 1 (2009)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

The purpose of the research was to find out the countent of nutrition of Ara (Ficus racemosa L) wich covers : thelevel of protein, fat, water, ash, fibrous part of the fruit, calcium, phosphor, vitamine C and E as well as amino acidwhich are very useful for enrichment of fish diets. The sample of Ara fruit were collected directly in the field. Therewere two types of processing Ara fruits used in this research, namely (1) cutting the fruits into thin layer and madeit into; (2) separating the fuit from the seed, dried, and made it into flour. The level of protein, fat, fibrous part of thefruit, water, and ash was analyzed by using proximate analysis, while the level of calcium was analyzed by usingAAS methods. The level of phosphor was measured by using spectrophotometer, the level of vitamine C and E wasanalyzed by using HPLC and amino acid by gas chromatography (CG). The study found that the flesh flour of Arafruit contained protein (10,63%), fat (8,66%), water (7,08 %), ash (11,57%), fibrous part of the fruit (16,15%), calcium514,88 mg/100 g), phosphor (418,29 mg/100 g), vitamine C (475,38 mg/100 g), and amino acid (3,013 %) higher thanAra flour with protein (8,98 %), fat (6,57%), water (10,26%), ash (18,23%), fibrous part of the fruit (20,31%), calcium(0,039 mg/100g), phosphor (0,002 mg/100g), vitamin C 25,48 mg/100 g ), and amino acid (1,24%). It can be concludedthat the Ara flour can be used as on of the ingredients for fish diets especially as the source of vitamine C, calciumand phosphor to incrase reproduction ability and growth.

Penggunaan Zeolit sebagai Pendegradasi Senyawa Permetrin dengan Metoda Fotolisis Zilfa, Zilfa; Suyani, Hamzar; Safni, Safni; Jamarun, Novesar
Jurnal Natur Indonesia Vol 14, No 1 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

The research about the degradation of permethryn compound has been done by photolysis method using natural zeolyte as catalyst.Permethryn is one syntetic pyretroid pesticides that low toxicity for mammals but it is high toxicity for fishs, insects and water microorganisms.Zeolyte is aluminosilicate minerals that can be used for degradation of permethryn. Percentage degradation of permethryn is lower withoutzeolyte than using zeolyte as catalyst by photolysis method. 20 mg/l permethryn solution could be degraded 5.40% after 120 minutesirradiation, while by adding 0.20 g natural zeolyte, permethryn could be degraded 69.70

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Irwan Effendi

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Home Page

OAI Link

Editorial Team

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Reviewer

Google Scholar

Contact Name Irwan Effendi

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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

Abstract

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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