bluuebunny/crossref_metadata_2025_split huggingface dataset:
KINETIKA PERMEASI KLOTRIMAZOL DARI MATRIKS BASIS KRIM YANG MENGANDUNG VIRGIN COCONUT OIL (VCO)
Authors: Lucida Henny , Husni Patihul , Hosiana Vinny 
Published: October 2017

ABSTRACT A kinetic study on the release of clotrimazole from a VCO containing creambase has been undertaken. The in-vitro release of the drug was studied by using a modification diffusion cell apparatus. Four formulations of clotrimazole cream were prepared, each contained either VCO or paraffin liquidum in the cream base. The amount of clotrimazole release were determined by UV spectrophotometer. Results showed that release of clotrimazole from all formulations followed Higuchi kinetics, the release rate constant from F1 (containing VCO) was significantly different than that from F1’ (containing paraffin liquidum) (p < 0.05). The rate constant of clotrimazole from F2 (containing VCO); F2’ (containing paraffin liquidum ) and F1 were not significantly different. Virgin coconut oil (VCO) was a potential cream base matrix regarding the release profile of clotrimazole from the matrix. Keywords : clotrimazol, VCO, permeation kinetic
Ketahanan Membran Komposit Kitosan/ Polisulfon Terhadap pH
Authors: Erna Maria , Haryati Sri , Naldo Roy , Yana Yeni Fitri 
Published: October 2017

ABSTRACT It has been done resistance test of chitosan/polysulfon composite membrane to solvent. The results of research obtained that resistance composite membrane to pH. This matter is marked with its percentage swelling highest that is 75.48%. This result is also supported by porous photo membrane using SEM that is across-section, up surface and bottom photo showed that happed change porous structure membrane but structure tying membrane can not experiencing of damage. Keywords: composite membrane, chitosan, percentage of swelling
ISOLATION AND CHARACTERIZATION OF AN ACRYLAMIDE-DEGRADING Burkholderia sp. STRAIN DR.Y27
Authors: Gusmanizar Neni , Shukor Yunus , Ramli Johari , Syed Mohd. Arif 
Published: October 2017

ABSTRACT Several local bacteria have been isolated from glyphosate-contaminated soils at various locations throughout Malaysia. Quantitative monitoring of acrylamide degradation was performed using High Performance Liquid Chromatography (HPLC) whilst bacterial growth was carried out by plate counting. The isolate was tentatively identified as Burkholderia sp. strain DR.Y27 based on carbon utilization profiles using Biolog GN plates and partial 16s rDNA molecular phylogeny. Highest growth was obtained at acrylamide concentrations of between 100 to 2000 mg L-1. Complete degradation of 850 mg L-1 of acrylamide occurs after ten days of incubation with concomitant cell growth. The isolate grew optimally in between pH 6.0 and 8.0. The effect of incubation temperature on the growth of this isolate shows an optimum growth at 30°C. Glucose, lactose, maltose, fructose, mannitol, citric acid and sucrose at an initial concentration of 1.0% (w/v) supported growth with glucose being the best carbon source. Aliphatic amides such as 2-chloroacetamide, methacrylamide, nicotinamide, acrylamide, acetamide, propionamide and urea supported growth with increasing assimilative capability from 2-chloroacetamide to urea. The characteristics of this isolate suggest that it would be useful in the bioremediation of acrylamide. Keywords: isolation, characterization, acrylamide-degrading, Bacterium
PENAMBAHAN ASAM OLEAT TERHADAP Sistem transpor Cu(II) dengan zat pembawa oksin melalui teknik membran cair fasa ruah
Authors: Tetra Olly Norita , - Zaharasmi , - Refinel 
Published: October 2017

ABSTRACT The removal of Cu(II) from aqueous solutions had been employed throught bulk liquid membrane techniques with arrange the optimization conditions of transport Cu(II) interface system. The optimum conditions of transport were found to be 3.1510-4 M of Cu(II) at pH 3 in the source phase, 17.510-4 M oxine dissolved into chloroform as membrane phase, 0,15 M H2SO4 as acceptor in receiving phase, stirring rate was 340 rpm and it was found that the transport of Cu(II) to receiving phase reached 97.41% during 6 hours. The effect of addition oleat acid 1.57 10-3 M as surfactant in membrane phase resulted a rapidly time of transport Cu(II) to be 3 hours, wherein Cu(II) transported into the receive phase reached 97.83% and remained in feed phase 0%. Keywords: bulk liquid membrane, oxine, oleat acid, Cu(II) )transport
Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok
Authors: - Roswita , Suyani Hamzar , - Safni 
Published: October 2017

ABSTRACT A simple, rapid and accurate Spectrophotometric method described to the determination of vanadium in ore using sodium tungstat as a complexing agent. The method is based on the oxidation of sodium tungstat to form a yellow colored on reaction with vanadium (V), having maximum an absorption occurred at 403 nm. The relative standar deviation of the method for 8 mg/L vanadium (n=11) was 0.24%, and the molar absorptivity is 2.026103 L mol-1cm-1 and sensitivity Sandell is 2.5 10-2 mg cm.2 . The recovery test is 99.47%. The effect of ion interfering Fe (element large amount in ore) on determination is describe. The general procedure which was developed is suittable for determination of 0-20 mg/L of Vanadium and should be applicable to variety of ore sample. Keywords : vanadium, spectrophotometric, sodium tungstat, ore
OPTIMATION STUDY OF CARRAGEENAN EXTRACTION FROM RED ALGAE (Eucheuma cottonii)
Authors: - Refilda , Munaf Edison , Zein Rahmiana , Dharma Abdi , - Indrawati , Lim Lee Wah , Takeuchi Toyohide 
Published: October 2017

ABSTRACT Carrageenan is a general name for polysacharides, it is made up of sodium, potassium, magnesium, and calcium sulphat esters of galactose and 3.6-anhydrogalactose units. Research about parameters influencing extraction process of carrageenan from red algae (Eucheuma cottonii) has been studied. The parameters were particle size of red algae, pH of NaOH solution, heating time and heating temperature. About 64.30% of carrageenan was extracted from red algae (Eucheuma cottonii) under optimum condition, 425 µm particle size of red algae, solution pH 8.5, heating time 18 h, and heating temperature 95°C. The FTIR spectra of extracted carrageenan showed the same spectra as the pure carrageenan. Keywords : carrageenan, red algae (Eucheuma cottonii), and extraction
KINETIKA TRANSPOR Cu(II) OLEH ZAT PEMBAWA OKSIN DENGAN DAN TANPA ASAM OLEAT MELALUI MEMBRAN CAIR FASA RUAH
Authors: - Refinel , - Emdeniz 
Published: October 2017

Vol. 2, No. 2ABSTRACT Transport of Cu(II) ions with and without oleat acid additive through bulk liquid membrane has been fullfill the kinetic lows of consecutive irreversible first reaction by oxine as carrier in chloroform membrane. Additions of oleat acid 1.57510–3 M could increase Cu(II) transport affectivity on interface of membrane-source phase and receiving-membrane phase. Transport rate constanta value of Cu(II) ions entrance (k1) 0.0454/minute and the membrane exit rate (k2) 0.0364/minute at 301 K with activation energy 51.471 kJ/mol and without oleat acid rate constanta (k1) 0.0236/minute, (k2) 0.0193/minute with activation energy 55.2499 kJ/mol at the same condition. Keywords : bulk liquid membrane, oxine, oleat acid, copper ions
PEMBERIAN FLY ASH (ABU SISA BOILER PABRIK PULP) UNTUK MENINGKATKAN pH TANAH GAMBUT
Authors: - Rini , Nurdin Hazli , Suyani Hamzar , Prasetyo Teguh B. 
Published: October 2017

Vol. 2, No. 2ABSTRACT The research of fly ash as ameliorant to decrease the humic acid in peat soil of Rimbo Panjang, Riau. It is found that fly ash at 10 ton/Ha showed the best result decresing pH of peat soil (4.4 to 6.36) and humic acid content (0.2923 g/g to 0.0972 g/g). Keywords: fly ash, peat soil, pH, humic acid
DEGRADASI SENYAWA DIKOFOL DALAM PESTISIDA KELTHANE 200 EC SECARA FOTOLISIS DENGAN PENAMBAHAN TiO2-ANATASE
Authors: - Safni , - Desmiati , Suyani Hamzar 
Published: October 2017

ABSTRACT This research is conducted to know whether dicofol compound in Kelthane 200 EC pesticide can be degraded with photolysis method by adding TiO2-anatase. Photolysis method is conducted by using UV 10 watt lamp at the wavelength of 365 nm. The result shows that photolysis method could degrade the dicofol compound at 30 mg/L concentration as 9.73% after 60 minutes irradiation. Paraquat compound with the similar concentration by adding 30 mg unmixed TiO2-anatase could degradade 32.51% after 60 minutes irradiation and 65.84% by mixing TiO2-anatase. Furthermore, dicofol with the same concentration and TiO2-anatase addition could 86.13% after 180 minutes irradiation. Keywords : degradation, photolysis, dicofol, anatase-TiO2
TRANSFORMASI Agrobakterium rhizogenese DAN INDUKSI AKAR RAMBUT PADA TANAMAN KAKAO (Theobroma cacao) UNTUK PRODUKSI SENYAWA ANTIOKSIDAN SECARA INVITRO
Authors: Syukur Sumaryati , Aneloi N Zozy , Putri Femilya 
Published: October 2017

ABSTRACT Transformation of Ri T-DNA Plasmid Agrobacterium rhizogenese to varieties Theobroma cacao variety TSH which is growing in west Sumatra and induction of hairy roots in order to produce bioflavonoid antioxidant compounds such as, catechin, polyfenol, or monomer and oligomer flavones was successfully obtained. Three spesies of A.rhizogenese (A4,LBA 9457 and ATTCC 15834) originaly from LIPI was used to transform Ri T-DNA plasmid in MS medium via cacao embryo culture. The aim of this paper is to determine the affectivity and ability of the three species of bacterial above to produce hairy roots in cacao invitro culture. The statistical methods RAL was uses with 4 time treatments and 6 time repeated experiments. As treatment was bacterial inoculation and without inoculation as a control. The transformation result shows 2 of 3 of bacterial species have ability to induce hairy roots of.T cacao embryos counting by percentages of explants with producing hairy roots 16.66% for A4, 83.33% for LBA 9547 spesies.qualitative test of polyfenol from hairy roots transformants give (+4) as compared to non transform only (+1). Cathechin compound was determined by spectrophotometer as much as 0.1% for non transform and 0.87 % for hairy roots transformants by LBA 9547. Conformation of plasmid Ri T-DNA hairy roots from two transformants was analysis by PCR methods. The two primers rol B1 (52ATGGATCCCAAATTGCTTCCCCCACGA32) dan rol B2 (53 TTAGG CTTTCATTCGGGTTTACTGCAGC 33) was used. For TR-DNA the primes used is TRI (53 GGAAATTGTGGCGTTGTTGTGGAC 3’) and TR2 (5’ AATCGTTCAGAGAGCGTCCGA AGTT 3’) . PCR analysis of DNA electrophoresis founded the band of TL region at 780 bp and TR at 1600 bp using DNA Ledder as DNA standard. Keywords : transformation A.rhizogenese, PCR, Theobroma cacao, kultur embrio, kultur akar rambut, metabolit sekunder, cathechin
UJI AKTIVITAS ANTI BAKTERI ASAP CAIR YANG BERASAL DARI BATANG KAYU MANIS DAN KULIT KACANG TANAH
Authors: - Yefrida , Aprilina Farrah , Leone Indri Ticel , - Refilda 
Published: October 2017

ABSTRAK Antibacterial agent is a compound that prevent the growth and reproduction of bacteria. Antibacterial activity of liquid smoke is caused by acid and fenolic compound. In this research, we determined antibacterial activity of liquid smoke from stem sweet wood and nut shell by using diffusion method. Both of liquid smoke have antibacterial activity to Staphylococcus aureus Eschericia coli population. Their activity almost the same to chloramphenicol, but less than formalin. Keywords : antibacterial activity, liquid smoke, diffusion method
DEGRADASI SENYAWA PERMETRINDENGAN MENGGUNAKAN TiO2-Anatase DAN ZEOLIT ALAM SECARA SONOLISIS
Authors: - Zilfa , Suyani Hamzar , - Safni , Jamarun Novesar 
Published: October 2017

ABSTRACT The research about the degradation of permethryn compound had been done by sonolysis method using anatase- TiO2 and natural zeolyte (mordenit kinds) as catalysts. Permethryn is one of synthetic pyretroid pesticides that low toxicity for mamals but it is high toxicity for fishs, insects and water microorganisms. Sonolysis method is conducted by using ultrasonic wave at frequency 45 kHz. The results show that sonolysis method without the addition of anatase-TiO2 and zeolite on optimum temperature at 40°C during 120 minutes treatments could be degrade 20 mg/L permethryn until 22.23%. In other hands, the degradation of 20 mg/L permethryn in the same condition with adding 0.002 g anatase-TiO2 achieved 44.95% but for using 0.2 g zeolyte could be degrade 52.34%. Keywords : degradation, permethrin ,TiO2-anatase , sonolysis, zeolite
PEMANFAATAN FUNGSI ANTI OKSIDAN GAMBIR (Uncaria gambir) SEBAGAI HEPATOPROTEKTOR
Authors: Edward Zulkarnain 
Published: October 2017

ABSTRACT The aim of the research is to find out the effect of the hepatoprotector from gambier to some rats animal contaminated by carbon tetrachloride (CCl4). The research was done in Biochemistry laboratory Medical Faculty Andalas University Padang applied to 12 galur wistar rats species in about ± 2 months ages with 170-200 g weight, which are separated into 3 groups (clusters). They are cluster in negative control, in positive control (CCl4 2 mg/kgBB inductions), and treated cluster (CCl4 inductions and 10 mg/kgBB gambier given). Statistically analyzed the data by one way Anova test with 95% confidence of degree, the result of the research are pointed to the rate of MDA serum level which is 1.08 ± 0.12 nmol/mL for the cluster in negative control, 4.07 ± 0.45 nmol/mL for positive control cluster, and 3.28 ± 0.46 nmol/mL for treated cluster showed the significant differences between the 3 clusters. The rates of MDA lever level to the cluster in negative control is about 1.80 ± 0.30 nmol/mL, in positive control is about 4.55 ± 0.56 nmol/mL, and the treated cluster is about 3.92 ± 0.22 nmol/mL, from the 3 clusters above shows that there is only the positive control and the treated control has no meaning of purpose. It concluded that the CCl4 has the hepatotoxite effect with gambier could be functionated as the hepatoprotector. Key words : gambier, CCl4, hepatoprotector, MDA
STUDI OPTIMASI KROMIUM (VI) DALAM AIR LAUT SECARA VOLTAMMETRI STRIPPING ADSORPTIF
Authors: - Deswati , Suryani Hamzar , - Imelda , - Yulia 
Published: October 2017

ABSTRACT Study of optimation chromium (VI) in sea water by adsorptive stripping voltammetry has been done. The aim of this method to get optimum conditions for determination of Cr(VI). Adsorptive stripping voltammetry (AdSV) has been used for the ultra trace determination of chromium using 2,2’- bipyridin as ligand. Parameters were done, like accumulation time, concentration of ligand, pH, accumulation potential, electrolyte concentration and catalyst concentration. In this case, the optimum conditions were reached in accumulation time 80 second, pH 5.0, concentration of 2,2’- bipyridin 10 μM, accumulation potential -0,6 Volt and electrolyte concentration (NH4Cl) 0,1 M. In the optimum conditions, a linear calibration graph was obtained with correlation coefficient of 0.9971, the relative standard deviation was 15.06 % for eight replicates (n = 8) measurements of 10 μg/L of Cr(VI). The detection limit method was 0.1692 μg/L. The method was applied to the direct determination of Cr(VI) in sea water around Muara Padang water. Concentration Cr(VI) in sample was equal to 0.9684 μg/L with recovery of 90.23 %. Keywords : optimation, chromium, adsorptive, stripping, voltammetry
PEMAKAIAN CHELATING MONOLITH SEBAGAI SOLID PHASE MICROEXTRACTION (SPME) TRACE ELEMEN DI DALAM AIR
Authors: Rahmi Dwinna 
Published: October 2017

ABSTRACT A syringe-based sample pretreatment tool, named herein “chelating monolith”, has been developed for simple and facile solid phase microextraction (SPME) of trace elements in natural waters. The monolith was directly prepared within the confines of a commercially available syringe filter tip by a two-step process: 1) in situ polymerization of glycidyl methacrylate (GMA) with ethylene glycol dimethacrylate (EDMA) and 2) subsequent modification with iminodiacetate (IDA) via ring opening reaction of epoxide. The composition of porogenic solvent was first optimized to make a rigid-porous material that has high permeability and ample surface area as much as possible. Then, the pH and concentration of the IDA modification solution were examined to obtain higher chelating capacity. The metal adsorption properties of the obtained chelating monolith were evaluated through an adsorption/desorption experiment. After optimization of some parameters such as sample solution pH, eluent concentration and the volume, good recoveries of more than 80% were obtained for 28 elements including REEs, Fe, Co, Ni, Cu, Zn, Ga, Pb and Th in a single extraction step. The proposed SPME method was validated through the analysis of river water certified reference material (CRM: JSAC 0301-1) Keywords: Solid phase microextraction; syringe filter; chelating monolith; iminodiacetate; ICP-MS
UJI DAYA HAMBAT EKSTRAK RIMPANG SEGAR KUNYIT PUTIH (Curcuma zedoaria, Berg) TERHADAP PERTUMBUHAN KUMAN GRAM POSITIF DAN GRAM NEGATIF IN VITRO
Authors: Bahar Elizabeth 
Published: October 2017

ABSTRACT Known as white turmeric crop of crop medicines anti cancer where this crop rimpang contain immeasurable chemical vitamin in the reality can pursue many of cancer cell. Though unegual germ cell its structure with cancer cell but process many of is same cell perform a replicace. Have been done/conducted by research of test sensitivity of extract of rimpang fresh of white turmeric in so many concentration 100%, 75%, 50% and 25% to growth of germ of Staphylococcus aureus, Salmonella typhii, Pseudomonas aeruginosa dan Escherichia coli of in vitro to know its sensitivity. Research of experiment by using factorial pattern in complete random device (RAL) with 5 restating. From result of research obtained by extract of rimpang fresh white tumeric in so many concentration not pursue growth of germ of Staphylococcus aureus, Salmonella typhi, Pseudomonas aeruginosa dan Escherichia coli. Its conclusion of extract of rimpang fresh of white turmeric non influence growth of Gram positive and Gram negative bacteria. Keywords: extract, fresh rimpang, white turmeric, germ
KINETIKA TRANSPOR Co(II) MELALUI TEKNIK MEMBRAN CAIR FASA RUAH SECARA KONSEKUTIF
Authors: Dewi Riana , Alif Admin , Aziz Hermansyah 
Published: October 2017

ABSTRACT Determination of kinetic analysis of Co(II) ion transport through bulk liquid membranes by consecutive method have been study. The optimum condition was obtained at pH 4 for the intermediate phase and receiving phase at pH near zero, while the source phase at pH 7, oxine concentration in chloroform at source phase is 2.10 M, methyl red concentration in chloroform at receiving phase is 3.10 M. It was found that Co(II) ion receiving phase at optimum condition as 4.40%. Evaluation of Co(II) ion kinetic transport shows k1 as 0.0116 minutes-1 and k4 0.0113 minutes-1. Kinetic transport process of Co(I1) ion through bulk liquid membranes by consecutive method followed first order consecutive irreversible reaction rate low. Consecutive method can used as an alternative method in determination the optimum condition of metals ion transport and kinetic evaluation of mentioned transport metals ion. Keywords : bulk liquid membranes, consecutive, cobalt
PENGGUNAAN KATALIS ZnO-H2O2 UNTUK DEGRADASI ZAT WARNA RHODAMIN B DAN ALIZARIN-S
Authors: - Safni , Amelia Fitrah , Liansari Oktanora , Suyani Hamzar , Yusuf Yulizar 
Published: October 2017

ABSTRACT The textile industry produce colored waste liquid that can contaminate the line water and its populations. A number of dyes are using in textile industry processes such as rhodamine-B and alizarine-S. Both of dyes are toxic for human life. In order to reduce the concentration that dyes is used the sonolysis method which have good efficiency and effective to degrade this pollutants. Sonolysis was performed using an ultrasound energy at 47 kHz. Catalyst ZnO is used to get better degradation. Rhodamine-B 2mg/L with 0.3 g ZnO addition, pH 5, temperature 40°C get 35.44% degradation after 60 minutes. If we used 3 mL H2O2 30% in the same condition the degradation up to 42.67% and with the combination of 0.3 g ZnO - 3 mL H2O2 as catalysts it got 91.99% after 90 minutes. Alizarine-S 20 mg/L with 0.5 g ZnO addition, pH 5, temperature 50°C was degraded up to 86.45% after 35 minutes. Furthermore, the degradation reached 95.79% if it used 0.5 g ZnO and 25 mL H2O2 30% at pH 5 and temperature 50°C after 35 minutes sonolysis. Keywords : rhodamine-B, alizarine-s, ZnO, H2O2
AMPLIFIKASI GEN 16S-rRNA BAKTERI TERMOFILIK DARI SUMBER AIR PANAS, GUNUNG PANCAR BOGOR
Authors: - Suryani , Ambarsari Laksmi , Harahap Efi Sanfitri 
Published: October 2017

ABSTRACT Exploration of thermophilic bacteria that produce thermostable enzyme is most useful in application for enzyme base industrial. The aim of of this research is to isolate and amplificate the 16S-rRNA gene from thermophilic bacteria isolate at hotspring, Mount of Pancar, Bogor. The research steps consist of bacteria isolation, chromosomal DNA extraction, and amplification of 16S-rRNA gene. The water sample as source for bacteria was collected from four cauldrons. Temperature and pH for each cauldron are red cauldron 75-80°C, pH 7; black cauldron 55°C, pH 7; white cauldron 57°C, pH 7; and saline cauldron 25°C, pH 6, respectively. The bacteria were cultivated at Luria Bertani (LB) and Thermus media. The chromosomal DNA have been extracted. Gene amplification of 16 S-rRNA have been carried out by using universal primer (Bac F1 and Uni B1). The size of amplicon is ± 1.5kb. Keywords : thermophilic bacteria, chromosomal DNA extraction, amplification of 16S-rRNA gene
ISOLASI DAN ELUSIDASI STRUKTUR TRITERPENOID KULIT BATANG SURIAN Toona sinensis DAN UJI TERHADAP HAMA Crosidolomia pavonana
Authors: Santoni Adlis , Nurdin Hazli , Manjang Yunazar , Achma Sjamsul A 
Published: October 2017

ABSTRACT Tryterpenoid compound (3-hydroxyeupha-7-ene) were isolated from hexane fraction the steam bark of Toona sinensis (Meliaceae). The structures of these compounds were established base on spectroscopic evidence, including UV, IR, 3C-NMR, 1H-NMR, HMBC, HMQC and COSY spectra and literature survey this is new compound in family Meliaceae. Insect activity of the hexane fraction (1.0%) and against Crosidolomia pavonana were tested. The activity of hexane were mortality (37.5%), antifeeding (75.5%). The activity of the 3-hydroxyeupha-7-ene showed mortality (52.0%), Lc50; 0.39847 and Lt50; 5.53931. Keywords: Toona sinensis (Meliaceae), 3-hydroxyeupha-7-ene, Crosidolomia pavonana, Antifeeding, Mortality Lc50 and Lt50
KRISTAL CAIR LAMELAR DALAM SISTEM AIR, TETRA ETILEN GLIKOL DODESIL ETER, DAN TEMBAGA NITRAT
Authors: Amran Ali 
Published: October 2017

JRK Vol. 3, No. 2ABSTRACT The lamellar liquid crystal in water, tetraethyleneglycol dodecylether, and copper nitrate system has been investigated. The results which characterized using optical polarizing microscope and small-angle x-ray diffraction showed the stability of the liquid crystal region was 40% and 65% by weight of surfactant. The interlayer spacing of lamellar liquid crystal, with and without various concentrations of copper nitrate content, remained constant. Keywords : Lamellar liquid crystal, Tetraethylene glycol dodecylether, Copper nitrate, Optical polarizing microscope, Small-angle x ray diffraction