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Jurnal Penelitian Saintek

saintek
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Published by Universitas Negeri Yogyakarta

ISSN : 14123991 EISSN : 25287036 DOI : 10.21831

Core Subject : Science,

Decision Sciences, Operations Research & Management

Arjuna Subject : -

Articles 8 Documents

Search results for , issue "Vol 15, No 1: April 2010" : 8 Documents clear

PENGEMBANGAN PROBIOTIK BAKTERI ASAM LAKTAT DARI LIMBAH IKAN YANG BERPOTENSI MENURUNKAN KADAR KOLESTEROL DAGING AYAM BROILER STRAIN HUBBART Astuti Astuti
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jps.v15i1.1725

The aims of this research is to find the influence of giving isolate probiotic BAL Streptococcus thermophillus from the fish waste toward the broilers' appearance of woof and the degree of broilers' cholesterol. The research materials are 40 roosters of broiler Strain Lohmann, production of PT Multi Breeder Adirama at the age of 1 week. The probiotic of isolate treatment of Lactate Acid Bacteria (BAL) which is used in this research is Streptococcus thermophillus bacteria in from of freeze dying which comes from Nutrition Biochemical Laboratory, Veterinary Faculty of UGM The treatment I is as the control (without BAL), the number of BAL in treatment II is 106 CFU/ml, the number of BAL in treatment III is 107 CFU/ml, the number of BAL in treatment IV is 108 CFU/ml. The data collection for the degree of cholesterol is done after 28 days. The data which is collected of woof and the degree of broilers' cholesterol. The research result: the treatment of giving lactate acid bacteria of Streptococcus thermophillus caused the decrease of the degree of broilers' cholesterol significantly and the best level of BAL is 108 CFU/ml.

TESTING OF PROCESSING OIL WASTE TO BE BIODIESEL AS A FUEL ALTERNATIVE MOTOR DIESEL Dwi Widjanarko; Abdurrahman Abdurrahman; Hadromi Hadromi
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

The objectives of this research are to desain and to test the biodiesel processing unit from waste cooking oil, to examine the characteristics of processed biodiesel, and to apply the biodiesel on diesel engine to ensure that there will not be a problem on the tested diesel engine. This research is an experiment research carried out by several steps, designing waste cooking-biodiesel processing unit, examining the characteristics ofbiodiesel made, and applying the biodiesel on diesel engine. The result showed that the biodtesel processing unit that was made could work well to produce biodiesel. The biodiesel characteristics are comparable with diesel oil and the biodiesel is applicable on diesel engine without any problems accured. Keywords: biodiesel, waste cooking oil, alternative fuel, diesel engine

PROBIOTIC DEVELOPMENT OF ACID BACTERIA OF LUBRICATED POTENTIAL WASTE REDUCING CHICAGEN CHOLESTEROL BEHAVIOR BROILER STRAIN HABBART Astuti Astuti
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

The aims of rhis research is to .\/reptococcus thermophillus .from .fintl thc in.fluence of gifing lsctlate probiotic B,4L The.fish waste trn'ard the broilers' cind the degree Oj bt"oilers't'holesterol. The research matertals iu'e qppearance of wool ."/() roosters oi broiler Sn'ain Lohntttnn, produclion of PT \v{ilii Breeder Adirama at theage of I tt,eek. The probiotic ttJ isolate tt'eatmeill of Lacture,lcid Bqcteria (BAL) whichis used in this research is Streptococcusthernrcphillus bacteria in .from of Jt eeze Cying tthich contes lj'om llutrition Biochemical Laboratory, Vete.rinary Faculry of UGfut. The treatrnentI isas the control (u'ithctrtt BAL), the rumther o/ BAL in treatment II i.s 106 CFUhnl, the rnunberofBALintreatmentlllisl0 CF'Lt,'rnl,thentttnberafBALintreatmentlVisl0s CFLI/wl. The data collection Jitr the degree of cholesterol is done aJier 28 days. The data which is collected of woo{and the degree of broilers'cholesterol. The research result; lhe treatment of giving lactate trcid bac:teria o.f Streptococctrs thermophillus caused the decrease ofthe degree ofbroilers'cholesterol signilicantll, dnd the best level ofB.4L is I 0^ C FL':nrl

MEASUREMENT OF LONGSOR LAND VULNERABILITY AS A DIFFICULTY PLAN FOR RESOURCES IN RESOURCES Muhammad Nursa'ban; Sugiharyanto Sugiharyanto; Nurul Khotimah
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

The objectives of this research are to: Investigating the level of landslide susceptibility and identifying the distribution of landslide susceptibility locations in Menoreh Mountains area. This is the explorative research. The subject of this research are Menoreh Mountains area in Bagelen, and Bener districts Purworejo regency, in addition to Samigaluh District in Kulonprogo Regency. Land units were chosen as the sample using the purposive area sampling technique. Thirty land units were obtained by overlay maps of slope, geology, and soil types. Data collecting was conducted with observation method and documentation to be analyzed by qualitative deskriptif. Findings shown that (I) the level of landslide susceptibility that is in four categories in Samigaluh and Bener districts are low, medium, high, and very high. While three categories were low, medium, and high clasified in Bagelen district. The distributions of low landslide susceptibility covered about 46.500.527,08 m2 (2 land units in Samigaluh, 3 land units in Bener, and 3 land units in Bagelen). The medium categories covered about 104480073,8 m2 (l land units in Samigaluh, 4 land units in Bener, and 7 land units in Bagelen). High categories covered about 67734399,31 m2 (each of district is 2 land units). The very high categories covered about 12228602,01 m2 (2 land units for both, Samigaluh and Bener District). Key words: landslide, susceptibility, mitigation, hazard, Menoreh

TRANSISI FASA TITATNIUM OKSIDA MELALUI KONDENSASI EX-SITU HIDROGEN TITANAT TIPE STRUKTUR LEPIDOKSROSIT Hari Sutrisno; Sunarto Sunarto
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

The objectives of the research are to study of the structure type of titanium dioxide (TiO2) obtained form the ex-situ condensation of hydrated hydrogen titanates with the structure type of lepidocrocite. Hydrated hydrogen titanates were obtained by ion exchabge of H+ for Cs+ in cesium titanates by 1 M HCl solution by Chimie Douce method. The results show that TiO2 (B), anatase, and anatase-rutile mixture were obtained heat treatment of hydrated hydrogen titanate at 100, 200, 300, 500, and 600oc respectively. The powders were characterized by X-rays diffractometer (XRD), High Resolution Scanning Electron Microscopy (HRSEM) and High Resolution Transmission Electron Microscopy (HRTEM). The research indicated that the protonic titanate, H0.54 Ti1.865 0.135O4 0.5H2O ( =vacancy), lost the interlayer water by being heated up to 200oC to produce a dehydrated phase, H0.54 Ti1.865 0.135O4. Above 300oC, the dehydrated phase completely transformed to TiO2(B) and anatase was obtained as pure phase at 600oC. The phase transformed as the following process: H0.54Ti1.865 0.135O4 0.5H2O à H0.54Ti1.865 0.135O4 0.25H2Oà H0.54Ti1.865 0.135O4 à TiO2(B) à TiO2-anatase.

PROTOTYPE OF ADAPTIVE CONTROL SYSTEM SOFTWARE USING PERCEPTRON LEARNING ALGORITHM Masduki Zakaria
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

This aims of this research is to build and to make performance test a software prototpe of adaptive control system with perceptron learning algorithm.Needs analysis is performed to find an adaptive control system specifications are required, the result is a blue print software, after a modification of the learning algorithms are tailored to the programming language, the result is a flow chart design. Software implementation is based on the flow chart that was created by using a developed by research and development approach.The results showed that th group data in the analytical calculations with research data from a running program at every step in iteration, there was no sognificant difference between the description of data in two research groups.ub 0{� sb`�5P8 ( =vacancy), lost the interlayer water by being heated up to 200oC to produce a dehydrated phase, H0.54 Ti1.865 0.135O4. Above 300oC, the dehydrated phase completely transformed to TiO2(B) and anatase was obtained as pure phase at 600oC. The phase transformed as the following process: H0.54Ti1.865 0.135O4 0.5H2O à H0.54Ti1.865 0.135O4 0.25H2Oà H0.54Ti1.865 0.135O4 à TiO2(B) à TiO2-anatase.

NITROGEN ADSORPTION OF URINE WITH ZEOLITE M.Pranjoto Utomo; Endang Widjajanti; Kun Sri Budiasih
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Tlte aints of the research v,ere to determine the nitrogen contained in humatt ttrine before and after ipplying zealyte ancl to determine the influence o.f MgO to nitrog'n contained in human urine. The tJetermination ofZeolyte aclsorptio capacity' to nitrogen contained in htrmqn trrine inclLtcled 3 s'teps. Activation ol' nature zeolf ie'nitrogen adsorptiort' Iotal nin"ogen determination Ly Kjeclahl test. Zeolyte activation wqs done by soaking zeollte itio0' 1 14 HCl, HNO: and H2soafor I hour and calcin(ltedJbr t hours at 100"c. The adsorption proses adding y,as clone byaicting inactivated ancl activated zeolyte tuithand without MgOThe iptimunt mass of zeolyte was 3 grants. The adsorption capacities oJ' inactivated zeolytes u,ithoutAnd with LttgO adcting were 0.00780994 and 0.0102% pq grdm zeolyte, respectivety. The adsorptionCapacities of activated zeoll'te by HCl, HNO: dan H:SO| wiihout Mgo addingw)re 0.00i01%,0.006610.4, and 0a0917?i, per gram:eolil'te. Lhe adsorption capacities of activated zeolyle by HCl, HNO j dan H2SO| v'i* )IgO udding were 0.00839%,0.0i01% dan 0.011% per gram zeoll'te. The activation and lulgO adr)ing increasecl the aclsorption capacitl' oJ' zeolyte to nitrogen contained in httman urine.

ACTIVITY OF MAKASAR FRUIT (Brucea Javanica L. Merr) ON RADICAL ANION SUPEROXIDE IN VIVO Ari Widiyantoro; Elvi R.P. Wardoyo; Endah Sayekti
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jps.v15i1.1724

Activity of scavengering radical anion superoxide by extract of Makasar fruit (Brucea javanica L. Merr) have been research with methods of inhibition reduction nitroblue tetrazolium, by in vivo on rat Wistar induction with aflatoxin. Results showed there are inhihition reduction of nitroblue tetrazolium by methanol extract, methanol fraction, ethylacetate fraction, methylen chloride fraction and n-hexane fraction. Phytochemical test showed alkaloid, terpenoid, quinone, polyphenol and steroid.

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