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Jurnal Penelitian Sains
Published by Universitas Sriwijaya
ISSN : 14107058     EISSN : 25977059     DOI : 10.26554
Core Subject : Science, Education,
Chemistry Mathematics Physics
Jurnal Penelitian Sains (JPS) MIPA UNSRI merupakan wahana komunikasi ilmiah di bidang sains serta lintas ilmu yang terkait; diterbitkan sejak 1 Oktober 1996 oleh UP2M FMIPA Universitas Sriwijaya. Jurnal ini berisikan tulisan atau karangan ilmiah dalam berbagai bidang tersebut yang diangkat dari hasil penelitian, survei, atau telaah pustaka, yang belum pernah dipublikasikan dalam terbitan lain.
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Search results for , issue "Vol 19, No 2 (2017)" : 8 Documents clear
Formulasi Krim Clindamycin Sebagai Anti Jerawat dan Uji Efektivitas terhadap Bakteri Propionibacterium Acne Doddy Rusli
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (138.278 KB) | DOI: 10.56064/jps.v19i2.478

Abstract

A Research has been done by using clindamycin antibiotics as active substances against Propioni-bacterium acne bacteria. In this study clindamycin was formulated into an anti-acne cream preparation using variations of TEA emulgator concentration and stearic acid ie F1 (2%: 6%), F2 (3: 12%), F3 (4%: 18%). Then evaluated characteristics of physical quality of cream include organoleptic, homogeneity, pH, freeze thaw, vis-cosity. On the 1st day, pH, homogeneity, washability and viscosity of cream preparations were tested and freeze thaw was tested for 6 cycles for 24 days. Obtained pH and viscosity data from cream preparations. In this study F2 showed the most stable cream preparation with concentration variation (3%: 12%). The results of the analysis on the change of cream pH of F1 and F3 showed a significant change, while in F2 did not change significantly, and on the measurement of viscosity analyzed by one way anova obtained F2 is the most stable or no significant change. To test the antibacterial activity was done by diffusion method by means of wells. The result of bacteria testing with 3 repetitions showed that clindamycin cream formulation data had a larger inhi-bitory zone compared with positive control circulating in the market, with the average obtained F2: 33,76mm, F2: 32,90mm and F2: 32 , 20mm, while for the average positive control is 24,80 mm, while the negative con-trol does not show antibacterial activity. This shows that clindamycin cream has antibacterial activity.
Analisis Sistem Kristal dan Unsur serta Topografi Permukaan Batu Api dengan Metode XRD dan SEM-EDS Perdinan Sinuhaji; Kerista Sebayang; Syahrul Humaidi; Susilawati Susilawati; Aditia Warman
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.229 KB) | DOI: 10.56064/jps.v19i2.474

Abstract

Analisis Sistem Kristal dan Unsur serta Topografi Permukaan Batu Api dengan Metode XRD dan SEM-EDSPerdinan Sinuhaji, Kerista Sebayang, Syahrul Humaidi, Susilawati, dan Aditia WarmanFMIPA Universitas Sumatera Utara, Medan, Sumatera Utara, IndonesiaAbstract: A research on the analysis of the crystal system and elements as well as the surface morphology of flint with methods of XRD and SEM-EDS. Flint has a hexagonal crystal system with lattice parameters, a = 4.8850 Å, b = 4.8850 Å and c = 5.3713 Å and  =  = 90o, 120o with  = density  = 3. 957 gr/cm3. Flint from Ende-Flores NTT has elements: oxygen (O) 47.56 Mass%, magnesium (Mg) 6:42 Mass%, aluminium (Al) 5:50 Mass%, silica (Si) 30.63 Mass%, and fe-rum (Fe) 9.90 Mass% with square microstructural irregular, uniform solids.Keywords: flint, elemental composition, microstructure and crystal systemEmail: perdinansinuhaji@gmail.com
Profil Kromatogram dan Uji Aktivitas Antibakteri Beberapa Fraksi Ekstrak Daun Kemuning (Murraya paniculata (L.) Jack) terhadap Bakteri Penyebab Disentri dengan Metode Difusi Agar Masayu Azizah; Sri Ekawati
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.431 KB) | DOI: 10.56064/jps.v19i2.479

Abstract

A research on the chromatogram profile and antibacterial activity of some fraction of the extract of Murraya paniculata (L.) Jack against the bacteria that cause dysentery. This study aimed to determine the pro-file of the chromatogram and antibacterial activity of some fraction of the extract of Murraya paniculata (L.) Jack against the bacteria that cause dysentery. Viscous extract obtained by maceration method and then frac-tionation. Profile chromatogram is done by thin layer chromatography separation and activity in case against several bacteria that cause dysentery performed by the agar diffusion method. The results showed that the pro-file of the chromatogram obtained Murraya paniculata (L.) Jack ethanol extract of phenolic compounds, fla-vonoids and steroids. In the water fraction obtained phenolic compounds and flavonoids. Ethyl acetate frac-tion obtained phenolic compounds. N - hexane fraction obtained steroid compounds and terpenoids. The re-sults of bacterial inhibition highest diameter obtained in ethyl acetate fraction against bacteria Shigella boydii ATCC 12985 with an average of 16.16 mm, 15.5 mm, 14.1 mm and 12.1 mm.
Membandingkan Kinerja Laser dan LED dalam Pencitraan Fluoresensi Buah Berondolan Kelapa Sawit Minarni Shiddiq; Ria Fitriani
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.129 KB) | DOI: 10.56064/jps.v19i2.475

Abstract

Diode Lasers (LD) and light emitting diodes (LEDS) have been used for fluorescence imaging due to their low cost and wavelength varieties. The fluorescence Imaging has recently been developed as a nonde-structive method for fruit and vegetable quality assessments. This research was aimed to study the potential use of both light sources in fluorescence imaging techniques for grading palm oil fresh fruit bunches in attempt to develop a laser based grading system. The system consisted of a 650 nm LD and a 680 nm LED with the same 5 mW output power. and a monochrome CMOS camera with a camera lens, and a color filter. The filter used to obtain the fluorescene intensity was an orange filter. The samples were Tenera varieties of lonsum loosed palm oil fresh fruits with 4 ripeness categories determined by an experienced harvester. The categories were underripe (f0), ripe 1 (f1), ripe 2 (f2) and ripe 3(f3), each with 3 duplicates.The recorded images of the loosed fruits were analyzed using imageJ software, and further compared.The result showed that the highest fluorescence intensities represented by the gray values of the images were obtained from the underripe (f0) fruits, followed by the ripe 2 (f2), ripe 3(f3), and, ripe 1(f1) fruits, for both light sources.The intensity levels ob-tained using LD were higher by 75.32a.u for underripe (f0), 52.35 a.u for ripe 1(f1), 57.18a.u for ripe 2(f2), and 55.11 a.u for ripe 3(f3) than those resulted from LEDS by 24.57a.u for underripe(f0), 19.71 a.ufor ripe 1(f1), 22.91 a.ufor ripe 2(f2), 21.78 a.u.for ripe 3(f3). There are two reasons for higher results obtained user laser, due to their differencesin wavelength, and beam shape.
Uji Daya Hambat Minyak Atsiri Rimpang Kencur (Kaempferia galanga Linn) Terhadap Trichophyton mentagrophytes, Trichophyton rubrum Nilda Lely; Dora Rahmanisah
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.278 KB) | DOI: 10.56064/jps.v19i2.480

Abstract

The rhizome oil of galanga (Kaempferia galanga L.) was investigated for the antifungal activities against two dermatophytes (Trichophyton mentagrophytes and Tricophyton rubrum). The essential oil of rhi-zome of galanga obtained by steam distillation method was 0,465 (v/w). The antifungal testing was carried out by using agar diffusion method. 1%, 0,5%, 0,25%, and 0,1% were the used concentrations in this research. In a consentrations of 1% the rhizome oil of galanga had an average diameter of inhibition against Trichophyton mentagrophytes 11.8 ± 0.26 mm and a concentration of 0.5% have a diameter of inhibitory average of 7.93 ± 0.20 mm. Essential oils kencur (Kaempferia galanga L.) at a concentration of 1% had an average diameter of inhibition against Trichophyton rubrum 10.37 ± 0.25 mm ±, at a concentration of 0.5% have a diameter of in-hibition of 7.7 ± 0.2 mm.In 0,25% and 0,1% concentrations of essential oil of galanga showed no antifungal activity to T.mentagrophytes, T.rubrum.The chemical composition of the active essential oil was investigated by gas chromatography and mass spectrometry (GC-MS). The major chemical constituents were identified as ethyl cinnamate (65,98%) and ethyl p-metoxycinnamate (23,65%).
Validasi Areal Terbakar dengan Metode Normalized Burning Ratio Menggunkan UAV (Unmanned Aerial Vehicle): Studi Kasus Agus Dwi Saputra; Dedi Setiabudidaya; Dwi Setyawan; Iskhaq Iskandar
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (905.42 KB) | DOI: 10.56064/jps.v19i2.476

Abstract

Kebakaran hutan merupakan suatu bentuk bencana yang di picu oleh faktor alam maupun faktor kelalaian ma-nusia, bencana ini mempunyai dampak terhadap aspek-aspek kehidupan masyarakat. Salah satu dampaknya adalah de-gradasi hutan dan lahan terutama keanekaragaman hayati didalamnya. Untuk dapat menyusun rencana rehabilitasi pasca kebakaran pada wilayah yang luas dibutuhkan data area terbakar yang sudah terklasifikasi tingkat keparahan terbakarnya. Pada penelitian ini akan melakukan validasi tingkat keparahan terbakar pada kebakaran tahun 2015 di kawasan hutan gambut Merang-Kepayang. Data areal terbakar diturunkan dengan metoda Normalized Burning Ratio dari Citra Landsat 8 yang menggunakan kanal Near Infra Red (NIR) dan kanal Short Wave Infra Red (SWIR), dari perhitungan metoda NBR dihasilkan nilai ambang batas keparahan terbakar yang diklasifikasikan berdasarkan rentang nilai reflektansi yaitu unburned bernilai -1.02 - 0.29 μm, low bernilai 0.29 - 0.42 μm, moderate bernilai 0.42 - 0.55 μm, dan moderate extreme 0.55 - 0.80 μm. Setelah dilakukan klasifikasi tingat keparahan terbakar, kemudian dilakukan validasi hasil klasifikasi menggunakan foto udara dari Unmanned Aerial Vehicle (UAV) dengan 31 titik pengamatan lapangan dengan ketinggian terbang rata-rata 100 m dari permukaan tanah. Validasi menggunakan confusion matrix antara nilai reflektansi dan klasi-fikasi visual foto udara. Hasil validasi menyatakan bahwa akurasi keseluruhan adalah 70.97 % artinya tidak ditemukan perbedaan yang signifikan antara nilai indeks NBR dan klasifikasi lapangan. Dan juga nilai Koefisen Kappa 0.59 yang berarti hasil klasifikasi tersebut mampu mampu menghindari 59.2% kesalahan yang akan muncul pada klasifikasi lapangan. 
Hubungan Jumlah Jenis Obat terhadap Kejadian Drug Related Problems (DRPs) pada Pasien Bronkitis Pediatri Rawat Jalan Rumah Sakit X Palembang Tahun 2015 Yopi Rikmasari; Noprizon Noprizon; Raymond Hutagaol
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (201.205 KB) | DOI: 10.56064/jps.v19i2.481

Abstract

Drug-related problems (DRPs) are actual or potential events or circumstances that interfere with op-timal patient outcomes. Analysis of DRPs in bronchitis is important because bronchitis is one of the most com-mon respiratory infections in the community and needs special attention in pediatric patients, especially doses and limitations of the dosage form, so that pediatric patients are often given drugs in the form of dosage prepa-rations (pulveres) Which consists of several kinds of drugs. Polypharmacy is a large number of drugs in a pre-scription (and or without prescription) for inappropriate clinical effects. To decide carefully in identifying poly-pharmacy and stated that using more than the amount of drug that should be a potential risk of DRPs is limited assessment when assessing DRPs in a clinical setting. This study aims to determine the relationship between the number of drugs with the incidence of DRPs in child bronchitis patients in RS X Palembang. This research is a retrospective observational study, using analytical quantitative research method with de-scriptive design in the form of correlation study. Sources of data were obtained from secondary data, ie medi-cal records and recipes, using obervation sheet research instruments. The population is outpatient pediatric patients with a diagnosis of bronchitis at Palembang Hospital "X" in 2015. This study was conducted on all pop-ulations meeting the inclusion criteria. The results showed that there was a correlation (R = 0.473) between the number of drugs with the incidence of Drug Related Problems (DRPs) in the medium category and there was a positive correlation between the two variables ie the increasing number of drugs will increase the incidence of Drug Related Problems (DRPs). 
Analisis Kualitas Air Sungai dan Air Limbah (Outlet) Perusahaan dengan Metode Indeks Pencemaran dan Pengaruhnya terhadap Populasi dan Jenis Ikan Puspa Ayu Pitayati; M. Hatta Dahlan
Jurnal Penelitian Sains Vol 19, No 2 (2017)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (913.361 KB) | DOI: 10.56064/jps.v19i2.477

Abstract

This study was aimed to examine the water quality of Gasing River and company’s wastewater (out-let) in physically and chemicallyat the boundary of Gasing Industrial Estate and comparing with the existing quality standard,to analyze the condition of waters quality of Gasing River using pollution index method, and to analyze influence of water quality towards the population and species of fish around it. The research was conducted in March - April 2017 at Gasing River, Gasing Industrial Estate of Talang Kelapa Subdistrict, Banyu-asin Regency. The study included measurement of several parameters that was taken by in-situ, water sam-pling, sampling of fish, analysis of laboratory water samples at Laboratory Technical Implementation Unit in Environmental Agency Banyuasin Regency, analyze laboratory test data of water samples, and did question-naire in research location. Site determination was done by using purposive sampling method. Result of re-search which have been done to river water parameter measurement in upstream, middle and downstream there are some parameter which do not fulfill standard quality of Governor Regulation of South Sumatera Number 16 Year 2005 such as pH, BOD and COD, while result of company's waste water (outlet) there is one parameter of water quality which do not fulfill standard of Governor Regulation Number 8 Year 2012 that is pH. Regarding the result of calculation of water quality status at research station by using pollution index (IP) method, it is found that station 1 to station 4 is in light contaminated category, while station 5 still meet the standard of quality. The results of catches at three stations in upstream, middle and downstream of Gasing Riv-er were obtained by catching fish of the same type that is seluang fish (Rasbora sp). It is in line with the sam-pling and questionnaire in research location, community in Gasing Village is very difficult to get fish in the catchment area at the boundary of Gasing Industrial Estate with the catch about 4-5 kg / month. For the growth pattern of the fish species in upstream, downstream and middle stations are allometrically negative with the value of b <3 that means, the weight growth of the seluang fish tends to be slower compared to length growth where the value of b can be influenced by environmental conditions. The result of t test on the value of b rela-tion of length of fish in upstream, middle and downstream of Gasing River showed significant influence be-tween weight and length. The determinant value (R²) of the length and the weight relationship of the fish that caught in upstream, middle and downstream of Gasing River is relatively moderate, the magnitude is in the range 0.50 - 0.70, indicated that diversity can be affected by other variables and the relationship between total length and weight of the fish are not so close

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