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INDONESIA
Program Kreativitas Mahasiswa - Penelitian
Published by DITJEN DIKTI KEMDIKBUD RI
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Articles 39 Documents
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Search results for , issue " PKM-P 2014" : 39 Documents clear
PEMODELAN DAN PERAMALAN JUMLAH PENGUNJUNG KBS MENGGUNAKAN MODEL VARIASI KALENDER ARIMAX Arifani, Indry; Rahmayanti, Weny; Putri, Tesalonika; Kurniasari, Vira Oktavia; Anky, Alicia Mutiara
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Surabaya zoo (KBS) is one of zoo in Indonesia, which has benefits as a wildlife conservation and educational tours so that its existence is needed. Then research is held for predicting number of the Kebun Binatang Surabaya’s visitors in the future. The forecast results are used as a reference and recommendation by the manager of Kebun Binatang Surabaya in making the determination of policy and long-term development. Forecasting has been made by applying ARIMAX calendar variation model and the results are used to determine potential future KBS as The Biggest Zoo In South East Asia. The data used is about the number of visitors per month, start at January 2005 to December 2013, analysis was performed using the Box-Jenkins ARIMA models for estimating the order and Variations Calendar to capture seasonal patterns measured in calendar hijriyah (non-masehi). Keywords:  Box-Jenkins, Kebun Binatang Surabaya, Forecasting, Variations Calendar
KATALIS ASAM PADAT SILIKA TERSULFONASI UNTUK PROSES PEMBUATAN MINYAK PELUMAS Prasetyo, Andrianto; Sembiring, Almira Cristy; Rahmi, Arika Fadhia
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

In the process of crude palm oil (CPO) to be lubricant, homogeneous acid catalyst is commonly used. This kind of catalyst has some disadvantages including the difficulty to remove well from the product and corrosion problem. Therefore, it is necessary to develop solid acid catalyst that is easy to be removed from the product. The purpose of this work were to determine the effect of the template removal method and the concentration of polyethylene glycol (PEG). In this work, solid acid catalyst of sulfonated silica from water glass (sodium silicate) was prepared. The silica pores were expanded by templating using PEG. Two methods were used for template removal: calcination at 550C and solvent extraction using dimethyl sulfoxide (DMSO). The results showed that although calcination provided better performance in removing PEG, the silica produced tended to shrink. On the other hand, solvothermal extraction could avoid the shrinkage to give higher surface area. The higher surface area indicates that there are more active sites available for sulfonate groups to be grafted to exchange silanol groups on the silica surface. The results showed that ionic capacity of the sulfonated-silica obtained by solvothermal extraction was larger than that of calcination. The ionic capacity took the value of approximately 12.603 mmol/g silica. This result approached the ionic capacity of resins that is commonly used as a catalyst in the process of CPO to be lubricant. Keywords:  Crude Palm Oil, Solid Catalyst, Sodium Silicate, Lubricant
NEMATODA ENTOMOPATOGEN INDIGENOUS DALAM UJI PERBANDINGAN EFIKASI PENGENDALIAN Plutella xylostella (Lepidoptera: Plutellidae) Febrianasari, Ria; Azizah, Maziatul Umi; Damayanti, Annike Putri; Arif Zulfahmi, Muhamad Guruh
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

The problems in cultivated cabbage is cabbage caterpillar (Plutella xylostella). Attack of P. xylostella can result in a loss of 100% yield. Entomopathogenic nematode (EPNs) are parasite nematode that attack  specific insect larvae but is safe for animals and plants and has great opportunity for becoming pest control such as P. xylostella. The objective of this research was to compare the EPNs with synthetic pesticide to control P. xylostella. The research was conducted in Pandesari village, Pujon subdistrict, Malang district started on February until May 2014. The research used single-factor group of a randomized design with six treatments and four replications, designated as control (without treatment), EPNs 200 J1/ml, EPNs 400 J1/ml, EPNs 800 J1/ml, two pesticides with active ingredients klorpirifos and spinosad. Effectivity of insecticide (EI) from data were calculated with Abbot formula. Treatments that showed value greater than 70% was categorized as effective against target pest. The treatments gave significant effect to larvae population and damage percent incident variable. The result showed that EPNs was isolated from soil isolation in high populations (22.185 J1/ 0,25 ml). High doses give high control effectiveness and EPNs 800 J1/ml give best control effectiveness (78,36%).  Keywords:  Plutella xylostella, Entomopathogenic nematode,
MEDIA SI ODIK STOCOPIC UNTUK MENGURANGI BUDAYA MENGHAFAL UNSUR KIMIA SISTEM PERIODIK Melisa, Mey; Herlina, Endang; Syafitri, Diah; Bella, Riska
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

The background of this article is come up from the problem in chemistry learning process for senior high school exactly about the foundation of chemistry which is periodic table. The aimed of this research is to find out the influence of Si Odik Stocopic’s medium to minimize the memorizing’s way in periodic table chemistry material. The method that used in this research is Quasi Experiment Design with Nonequivalent Control Group Design type, with the student’s group sample which is divided into control class and treatment class by random way. The research was held in even semester students of 2013-2014 during one month in private school of SMA IT Raudhatul Ulum Sakatiga, Indralaya. The result from this research is proved that using medium of Si Odik Stocopic was totally optimize the use right brain, indeed, it will increase the student’s understanding, student’s ability memory for chemistry lesson and also to minimize the memorizing’s way in chemistry learning process. Keywords:  Medium of Si Odik Stocopic, Right Brain, Element Periodic System
PENGARUH DISPERSANT TERHADAP NANOPARTIKEL TiO2 SEBAGAI OPTIMASI DIRT-FREE PAINT Adiati, Rima Fitria; Nurfadilah, Nurfadilah; Febiola, Cindy Claudia; Taufan, Ibnu; Fadhilah, Nur
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Research has been conducted to determine the effect of variations of dispersant on TiO2 nanoparticles as optimization of dirt-free paint. Dispersant used are Ethylene Glycol, Polyethylene Glycol, and Triton X-100 dissolved in white paint. Self-cleaning test with two kinds of stains shows that for mud stain, the best sample is the sample with Ethylene Glycol dispersant, by reduction of stain area reach 40.99 cm2. As for the food coloring stain, TiO2 samples with dispersant Triton X-100 with 24.57 cm2. SEM-EDX test results show that the TiO2 average particle size of paint without dispersant is 132.02 nm. By the addition of PEG, particle size becomes 104.98 nm. From the test results in this study can be shown that the dispersant material effect on the stability of a photocatalyst that can lead to self-cleaning properties, as well as agglomeration so it is able to disperse the TiO2 particles in the paint well. Keywords:  dirt-free paint, dispersant, TiO2
TEST KIT UNTUK ANALISIS SIANIDA DALAM KETELA POHON BERDASARKAN PEMBENTUKAN HIDRINDANTIN Sulistyarti, Hermin; Kusumawardhani, Nury; Zulfah, Novy Lailatuz; Cahyani, Yulia Dwi; Fahriyani, Hilda Emilia; Milda, Balqis
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Cyanide is a highly toxic substance, which causes high number of poisoning by cyanide in a variety of foodstuffs; therefore the availability of test kits as fast and easy tool for analyzing cyanide is extremely demanded. The proposed cyanide test kit is developed based on the reaction of cyanide and nynhidrine to form a blue hydrindantin under strong basic solution. Cyanide test kit was optimized toward the λ maximum, pH, stability time of complex and concentration of nynhidrine. Optimization of maximum λ was done by measuring absorbance using visible spectrophotometer at range λ 560-620 nm. Optimization of pH was done by conditioning hydrindantine complex using NaOH solution to obtain pH of  9-14. Optimization of stability time of complex was done by monitoring complex under time range 0-120 minutes. The optimization of ninhydrin concentration was performed by varying the concentration of ninhydrin in range 0.5 to 3.5%. The results showed that the optimum conditions were: λ 590 nm, pH 12, the stability time of complex  of 30 minutes, and  concentration of ninhydrin of 1%. Test kit can determine cyanide at the range 1-10 ppm. test kit has been validated and applied for measuring cyanide in cassava with reliable results. Keywords:  nynhidrin, hidrindantin, cyanide, test kit, cassava
PEMANFAATAN POTENSI GANGGANG HIJAU (Ulva lactuca) SEBAGAI ANTIOKSIDAN ALAMI PADA PENCEGAHAN INFARK MIOKARD AKUT Mahmud, Iwan; Pertiwi, Reza; Azis, Nofa Risma; Reviana, Desi Novita
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Acute myocardial infarction is a myocardial necrosis due to blood flow to the heart muscle is disrupted. The occurrence of acute myocardial infarction is usually due to atherosclerosis of coronary arteries. Acute myocardial necrosis caused by total blockage of a coronary artery by a thrombus formed on an unstable atherosclerotic plaque. Radical compounds can cause auto-oxidation reaction that can cause lipid peroxidation which resulted in the accumulation of lipids in the artery walls and cause atherosclerosis are at great risk. Antioxidant compounds capable of capturing free radicals caused by auto-oxidation reaction that can cause lipid peroxidation which resulted in the accumulation of lipids in the artery walls and cause atherosclerosis are at great risk. Melatonin and sulfate content of polysaccharides present in Ulva lactuca.L have antioxidant activity according to several studies that have been done. This research method is done in 2 ways, namely in vitro and in vivo. This in vitro test using qualitative and quantitative tests using DPPH reagent. As for the in vivo test is used to measure the levels of MDA (malonaldehyde). Extracts of green algae (Ulva lactuca L.) has the ability of antioxidants seen from in vitro assays and in vivo. Data percent DPPH radical scavenging (ES50) on average positive control gallic acid and ethanol extracts of green algae (Ulva lactuca L.) respectively, are 0.912 ug / ml and 1426.616 pg / ml. The analysis showed that  200 mg / kg is an ideal dosage to prevent acute myocardial infarction.Keywords:  Green algae, myocardial infarction, heart, aterosclerosis
PENENTUAN NILAI SPF (SUN PROTECTING FACTOR) EKSTRAK N-HEKSAN ETANOL (1:1) DARI RICE BRAN (Oryza sativa) SECARA IN VITRO DENGAN METODE SPEKTROFOTOMETRI UV-VIS Mulyani, Mulyani; Putri, Pramita; Wahidatullail, Nurul
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Sunlight is an energy source for the survival of living on earth, but the overexposure on the skin provides the degree of damage depends on the frequency and duration of sunlight exposure on the skin. The ability to withstand ultraviolet rays of a sunscreen is rated as Sun Protecting Factor / SPF. This study aims to determine the SPF (Sun Protection Factor) n-Hexane ethanol extract (1:1) of rice bran (Oryza sativa), using spectrophotometry UV-Vis method. Rice bran was extracted by soxhletasi using mixed solution of n-Hexane ethanol (1: 1), then prepared sample solution using absolute ethanol with the concentration series of 100 ppm, 150 ppm, 200 ppm, 250 ppm, and 300 ppm. The absorbance of solutions were then measured by UV-Vis spectrophotometer with a wavelength of 280-400 nm. Result showed that n-Heksan ethanol ekstract (1:1) of rice bran can effectively block the UV-B ray. The SPF values acquired are starting from a concentration of 200 ppm, where the SPF value is 2,355 and then at concentration of 250 ppm is 2,884 and at concentration of 300 ppm is 3.483.Keywords:  Rice bran, Oryza sativa, sunscreen, spectrophotometry.
IDENTIFIKASI 16S RRNA DAN UJI ZIMOGRAFI BAKTERI ASAL PANTAI PAPUMA PENGHASIL ENZIM FIBRINOLITIK SEBAGAI ANTI ATHEROTHROMBOSIS A.S, Pananjung; I, Novanda asri; Nuryady, M Mirza; Ulfa, Evi Umayah
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Atherotrombosis is a disease caused by a blood clot (thrombus) in a blood vessel, and it can be the leading cause of death in the world. Atherotrombosis disease can be overcome with thrombolytic agents, one of which is a fibrinolytic enzyme but it has a expensive price, so we needto looking for a new fibrinolytic agent in this case the bacteria, from Papuma coastal. This research is a follow-up from past research, to identify the bacteria from papuma by using 16S rRNA, and to know the Enzyme activated by using Zymografi.The result of this research is, the bacteria identification by 16S rRNA is similar with Microbacterium testaceum with similarity percentage is about 97%. This bacteria is positive fibrinolityc bacteria it can showed by the result of Zymografi test, there is a one white band on zymografi gel, and because the protein marker on zymografi gel is unseen, so we just used the  qualitative observation. Keywords:Atherotrombosis, fibrinolitic, 16s rRNA, Bacteria  Identification, Zimografi. 
GELAS KAYU BIDARA LAUT (GEYU BILUT) SEBAGAI ANTIMALARIA Najiyyah, Siti Ulfatun; Ardiansyah, Ardiansyah; Prayitno, Oktavianus; Safitri, Rinitha Dinda; Megantari Ekaputri, Ni Putu Galuh
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Malaria until now still remain one of the main problem of world health. About 40% or 2.4 billion people in the world live in malaria endemic areas. Therefore, malaria cases in Indonesia on 2008 is about 1.624.930 cases. More than 25% province in Indonesia shows resistence to sulfadoksin-pirimetamin, cloroquin and kina in the last decade. People of  NTB believes that stewed water of geyu bilut works as antimalaria. The purpose of this research is to know the effectivity of stewed water of geyu bilut as antimalaria. The research that had been done is an experimental research using post test only control group design. The research sample are 30 Balb/c mice that have fullfiled inclusion criteria and have been selected by using simple random sampling. Every sample was infected with 200µL P.berghei intraper-itoneally on day 0. Treatment start given with sondage 2-4 hours after infection, the treatment are 0.3ml aquades to negative control group, 0.3ml cloroquin with dose 5 mg/kgBW to positive control group and 0.3ml of stewed water of geyu bilut with concentration 0,0003% to the treatment group, the dose start given with orally once per day, from day 0 to day 7. The thin blood smear was made on day 1 to 8 and was checked by using light microscope with total magnify 1000x, percentage of parasitemia was counted per 1000 erythrocytes. Primary data that has been collected then processed using Kruskal Wallis Test. The result that was collected from stewed water of geyu bilut with dose based on empiric fact has parasitemia percentage that don’t have significant difference with negative control and positive control group (p>0,05). Therefore, from this research we can conclude that 0,3ml stewed water of geyu bilut with concentraion 0.0003% is not effective as antimalaria. Keywords: malaria, parasitemia percentage, geyu  bilut, Strychnos ligustrina BI.

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