4.Seminar UR-UKM KE-7 2012

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A.Daftar Isi Seminar UR-UKM Ke-7 2012
(2014-05-22)
AKTIVITAS SENYAWA BIOAKTIF ANTICENDAWAN DARI Ralstonia pickettii TT47 TERHADAP Rhizoctonia solani PENYEBAB PENYAKIT HAWAR PELEPAH PADI
(2014-05-21) Rustam
R. pickettii TT47 (isolate TT47) were selected isolate having the potency of strong inhibition to the growth of R. solani in vitro and suppress the development of rice sheath blight disease in vivo. The antifungal activity test of the filtrate from fermentation broth of the isolate showed that the growth of R. solani reduced significantly. Presumably the culture broth of the isolate contains antifungal bioactive compounds. Antifungal activity in the culture broth of the isolate was significantly correlated with the cell growth of the isolate. Antifungal bioactive compounds were successfully extracted using buthanol or hexane solution for TT47 isolate.. MIC of TT47-hexana extract was 0,1 mg/l, and the extract was not phythotoxic against the rice seed. Stability of the active metabolites in filtrate broth cultured isolate was relatively stable on pH range from acidic to basic (pH 4, 7, and 10) but was sensitive to temperature.
ANALISIS DAN PEMODELAN GENERATOR INDUKSI SATU FASA PENGUATAN SENDIRI DENGAN RANGKAIAN EKIVALEN INVERS Г
(2014-05-22) Hamzah, Amir; Suwitno; Feranita
Characteristics of single phase induction generator are obtained with used an equivalent circuit. Modeling and analysis of self-excited single phase induction generator have been done in this paper. Core saturation effect is included in this analysis. An accurate equivalent circuit is required in order to obtain good analysis. Equivalent circuit type Г inverse is derived in this paper from standard equivalent circuit. This equivalent circuit is simple and the reactance stator leakage equal to the reactance rotor leakage assumption is not required to determine the parameters. Thus, determining the parameters can be done more accurate and we can obtain core saturation characteristic similar to the actual condition. The experiment results of induction generator are presented in this paper. The rms voltage of induction generator at no loaded at speed constant1560 rpm is 220 V with frequency 52 Hz and at loaded 240 W is 198 V.
ANALISIS KONSENTRASI HCl DAN WAKTU KONTAL OPTIMAL UNTUKPEMBUATAN ZIOLIT DARI ABU LAYANG DENGAN METODE BATCH
(2014-05-21) Itnawita; Awaluddin, Amir; Syahrul, Jhon; Anita, Sofia; Merlinda
Yogurt is popular dairy milk. It is usually packaged by HPDE or PET plastics because of simplicity. However, it has disadvantage that is migration of monomer such as carbonyl compound (formaldehyde or acetaldehyde) during stored. The mechanism of migration is accelerated by microorganism activities and acid content during stored in refrigerator. Method used in this research was UV-Vis Spectrometry using Schiff’s reagent. The result showed that during stored, the concentration of formaldehyde in samples increased after 20 days of HPDE and 60 days of PET. It was found that the highest concentration of formaldehyde after 70 days stored was 3.250 mg/L of HDPE and 1.488 mg/L. Based on ICPS, UN (ILO, UNEP and WHO), the concentration limit of formaldehyde in food is 1 mg/L. It concluded that yogurt packaged by HDPE and PET is not safe after 70 days stored
ANALISIS SURFAKTAN BINER (CTAB DAN PVP) UNTUK PENUMBUH PALLADIUM DENGAN METODE SEED- MEDIATED GROWTH
(2014-05-22) Iwantono; Umar, A. A; Taer, E; Nursoimah
Palladium nanoparticles have been grown on solid substrates (glass slide and ITO) using seed mediated growth method with a various ratios of CTAB and PVP, and a various duration times of growth. The particles were grown at 28-30’C. Characterizations of the samples were carried out by using UV-Vis spectroscopy, XRD and FESEM. The results of UV-VIS spectroscopy indicate that palladium nanoparticles prepared with the ratio of CTAB : PVP = 17 ml : 3 ml, and with a duration time of 4 hours + 4 hours have the highest absorption intensity. XRD results confirmed the present of palladium nanoparticles by two peaks at 2θ = 40.122° and 46.664° with orientation of (111) and (200). Whereas, FESEM images showed that palladium nanoparticles prepared with the ratio of CTAB:PVP = 17 ml : 3 ml, and with a duration time of 2 hours + 2 hours have uniform sizes of about 13.4- 17.9 nm and have high density of about 0.2325%.
APLIKASI PEMANTAUAN RUMAH DENGAN MENGGUNAKAN SENSOR DAN PORT PARALLEL KOMPUTER BERBASIS WEB
(2014-05-22) Alfirman
Houses often left empty by their owners are very prone to criminal acts. In this case to maintain the security of the home, the owner can use several sensors installed in certain places and they will be used to monitor the houses through the internet. As a reader of sensor in this application, we use the CGI (Common Gateway Interface). CGI is an application to become a bridge connecting various forms of software to a web page.
APPLICATION OF Trichoderma spp. TO INCREASE THE QUALITY OF COMPOS AS GROWTH MEDIUM COMPONENT OF PINE SEEDLING (Pinus merkusii Jungh. et de Vriese)
(2014-05-22) Mardhiansyah, Muhammad
The experiment aimed to evaluate the effect of application of Trichoderma spp. during composition processing of the quality of resulted compos as the growth medium component of pine seeds. Compos made from organic debris as the main component and fresh cow dung decomposer. Pellets of three species of Trichoderma i.e T.Koningii (T1), T.reesei (T13) dan T.harzianum (T27) were substituted 0.1% from weight of compos into the compos at day 10, 20, 30 during the decomposition of organic debris by containerizing the treated composes in nylon gauze container and inoculated in the compos mass. At day 70 the compos were harvest and used as the growth medium component of pine seeds. Results showed that application of T1 at day 20 lowered the C-N ratio at amount of 16.8%. Application T27 showed the best top-root ratio of seedling (4,49).
BREEDING MUNGBEAN Phaseolus vulgaris
(2014-05-22) Herman; Fathurrahman
The purpose of this research ia to see the change of fenotics and genetics by giving kolkhisin as a variable of the amount chromosoms. The frying pan experiment is done to get the best of ambibition kolkhisin proces, too. The seed is submerged in kolkhisin solution. After that, seed is planted in the pots. There are two treatment factors in this research K (kolkhisin consentration) devided in four level they are K0 (0%), K1 (0.1%), K2 (0.5%) and K3 (1%). While second factors is P factor (long time to frying pan) devided in four factors, they are P1 (5 hours), P2 (10 hours), P3 (15 hours) and P4 (20 hours). Parameter that is researched consist of the tall of plant, the total of branch, the time to bloom, total of ghost and weight of 100 seed. The result of consentration treatment and the long time for frying pan of kolkhisin solution show that it has the highest result to the time of bloom and K2 (31,25 days), treatment the total of ghost in K3 (68,6 ghosts) treatment and weight 100 seed in K3 (10,3 gr) treatment. While in P factor it found the highest result to the tall of plant for P1 (75,2 cm) treatment, total of branch in P1 (3,6 branch), the age for bloom and P4 (31 days) treatment, the total of ghost in P4 (58,80 ghost) treatment and weigh of 100 seed in P4 (10,07 gr) treatment. From result of highest combination treatment is got in the tall of plant P1K0 (86,6 cm) treatment the total of branch in P4K2 (4,2 branch) treatment the age for bloom in P2K3 (33,7 HST) treatment, the total of ghost in P4k3 (86,4 ghost) treatment and weight of 100 seed in P4K3 (16,9 gr) treatment . the result of statistic analyze that kolkhisin treatment and the long time for prying pan the seed influence the plant and the development of mungbin. Kolkhisin is changed the total of mungbin kromoson until it can increase the product. Giving treatment as the best combination is in P4K3 treatment.we can increase this treatment by add the persentase of kolkhisin solution that higher to increase the production of total ghost and weigh of seed.
BUILDING AN OPTICAL TWEEZERS FOR LIFE SCIENCE RESEARCHES
(2014-05-21) Minarni
Optical Tweezers has evolved as a valuable tool to trap and manipulate particles. Since it was introduced in 1986 by Ashkin and colleagues, Optical Tweezers has been used in many research areas. Its applications are found on research in atomic physics, medical physics, chemistry, and more notably in biophysics and cell biology. The simplest optical tweezers can be built from a commercial optical microscope either upright or inverted. The tweezing force comes from the radiation pressure of laser light which is sent to the back of the objective lens then is focused by the lens to the particles in a cuvette or slides. The particles can be any things from atoms, molecules, bacteria, viruses, blood cells to DNA. The optical tweezers are very useful in studying biological samples because it can provide picoNewton and nanometer ranges of force hence one can study the motor properties of the particles without damaging them. There are many parameters can describe a reliable optical tweezers. These parameters depend on the laser wavelength used and the size of the particles. In this article, the process to build an optical tweezers and what optical components needed will be described. The optical tweezers described has been used to trap two size-polystyrene beads with 830 nm laser light from a diode laser. This optical tweezers will be prepared to trap and study chlorophylls of mango leaves in searching for the new method in identifying its diversity. In the future, a portable and affordable optical tweezers for life science researches will be built
CHANGES IN PHENOLIC AND FLAVONOID CONTENT OF Coleus amboinicus TEA DURING STORAGE
(2014-05-21) Jose, Christine; Nurhayati; Chainulfiffah
Coleus amboinicus plants were grown organically treated with three different foliar treatments (control, herb fermented plant extract and EM5). Green tea and black tea were produced from each treatment and stored for up to three months. All green teas have significant higher (P<0.05) phenolic and flavonoid contents compared to all black teas. Green tea produced from EM5 foliar treatment showed the highest phenolic and flavonoid content. Some changes of phenolic and flavonoid contents were observed in green teas and black teas during 3 months storage.
DAN CAHAYA MATAHARI KE ATAS SIFAT FIZIKOKIMIA SERBUK RUMPAI LAUT Kappaphycus Alvarezii
(2014-05-21) Sjamsiah; Ramli, Nazaruddin; Daik, Rusli; Yarmo, Mohd. Ambar
The purpose of this work is to study the effects of two drying treatments which are sun (SND) and spray-drying (SD) on physicochemical properties of seaweed kappahycus alvarezii powders such as viscosity, gel strength, gelling point, melting point, and proximate content (protein, fat, moisture, and ash) powder. By using spray dry method, seaweed powders have gel strength, gelling point, and melting point higher than those of sun dry method which may due to the effect of high temperature (160 °C), while by using sun dry method, it gave higher proximate content and viscosity than those of spray dry method. These results are useful for selecting suitable drying method depending on the physicochemical properties of the kappahycus alvarezii powder.
DETEKSI PENYAKIT AVIAN INFLUENZA (AI) BERDASARKAN POLA DISTRIBUSI AYAM RAS PEDAGING PADA PASAR TRADISIONAL DI KOTA PEKANBARU
(2014-05-21) Sadarman; Andirus; Handoko, Jully
This research was aimed to detect the disease on broiler and distribution pattern at traditional markets of Pekanbaru. This research was conducted in February until March 2011 at 10 traditional markets (Cik Puan, Lima Puluh, Pagi Arengka, Pagi Palapa, Pagi Selasa, Pusat, Rumbai, Sail, Senapelan dan Tangor). The Samples used in this research were tracheal and cloacal swabs of the broilers. Suspension of the tracheal and cloacal swabs were inoculated into embryonated chicken eggs (TAB) aged 9-11 days. Then, the allantois chorion fluids harvested for haemaglutination test (HA) that was conducted at Virology Laboratory of Balai Penyidikan dan Pengujian Veteriner Regional II Bukittinggi. Interviews were conducted to the sellers and buyers to support the laboratory results. The results of this research showed that AI virus was not detected (AI negative) on broilers traded at traditional markets of Pekanbaru. It was dispersive pattern of the broilers distribution. The broilers were distributed from 12 districts of Pekanbaru, some regency outside Pekanbaru inside Riau Province (regency of Kampar; Rokan Hulu; and Pelalawan) and outside the Riau Province (West Sumatra Province)
ECO-GREEN CORROSION INHIBITOR FROM PADDY WASTE FOR CARBON STEEL
(2014-05-21) Othman, Norinsan Kamil; Yahya, Solhan; Mohamad, Nadzirah; Daud, Abdul Razak; Jalar, Azman
Investigation of inorganic (silica) and organic (lignocellulose) compounds extract from paddy (Oryza Sativa sp.) waste as corrosion inhibitor for carbon steel was studied in acidic medium. Silica was obtained by the burning process of rice husk using muffle furnace at high temperature meanwhile, lignocelluloses compound was yield via chemical process of the rice straw. Optical Microscopy, XRD, FTIR, SEM and TEM were used to characterize of both samples. Corrosion test via weight loss method was performed at room temperature in different time interval and varied concentration in ppm of silicate and lignocellulose solutions. Results show that the corrosion inhibition efficiency was found to be increased with increasing concentrations of both corrosion inhibitors.
EFEKTIFITAS METODE SELEKSI MASSA PADA POPULASI BERSARI BEBAS JAGUNG MANIS
(2014-05-22) Elfiani
Penelitian dilakukan pada Juli – Desember 2009 di Kebun Percobaan IPB Gunung Gede, Kampus Gunung Gede, Bogor. Bahan tanaman yang digunakan adalah populasi bersari bebas jagung orange keriput generasi seleksi massa ke-2 hasil seleksi dari enam macam galur jagung. Jumlah individu yang diamati adalah 1.015 tanaman. Seleksi dilakukan dengan menggunakan tiga macam metode yaitu (1) memilih 10% individu tanaman langsung populasi total, (2) memilih 10% individu dari setiap petak kemudian digabungkan untuk memperoleh data 10% dari populasi total dan (3) memilih petak yang memiliki nilai tengah lebih besar sama dengan nilai tengah populasi total kemudian memilih 10% individu tanaman dari populasi tersebut. Metode Seleksi Massa dengan menyeleksi populasi dalam petak memberikan kemajuan genetik lebih tinggi dibandingkan metode lainnya. Karakter tinggi tanaman dapat dijadikan kriteria seleksi dengan nilai diferensial seleksi yang tinggi pada karakter panjang dan diameter tongkol.
THE EFFECT OF OIL-METHANOL MOLAR RATIO AND REACTION TIME ON THE SYNTHESIS OF BIODIESEL USING SODIUM ACETAT ACTIVATED CLAY HETEROGENEOUS CATALYST
(2014-05-21) Nurhayati; Erman; Muhdarina; Mulyani, Sri
Biodiesel is mainly produced from vegetable oils or animal fats by the method of transesterification reaction using catalysts. Many heterogeneous solid acid and base catalysts have been studied for the transesterification of various vegetables oils. In this study the transesterification of vegetables oil to fatty acid methyl esters was studied using sodium acetat activated clay catalyst. The catalyst was prepared by adding 200ml CH3COONa 1M to 10gr clay, stirred, washed and calcined at 300oC for 3 hours. The transesterification reaction was performed with variation of the oil-methanol molar ratio and reaction time. Furthermore, the quality of biodiesel produced were characterized by ASTM (American Society for Testing Materials) method i.e. viscosity, flash point, carbon residue, cetane number and acid number, and the analysis result was compared with standardize (SNI). Free Fatty Acid (FFA) of waste cooking oil before synthesis was also calculated. It was found that the maximal production of biodiesel which is 78,033% when the oil-methanol molar ratio is 1:6 and 8 hours of transesterification. The characterizations of biodiesel produced have no significant different and all of those were in the range of Standar Nasional Indonesia (SNI)
EFFECT OF PLANT GROWTH STAGE ON THE POPULATION OF WHITEFLY Bemisiatabaci UNDER GLASSHOUSE CONDITIONS
(2014-05-21) Mansour; MohamadRoff; Hanifah, Mohd
The infestation of the whitefly (WF), Bemisiatabaci (Genn.) (Homoptera: Aleyrodidade) has caused losses in greenhouse crops in tropical and subtropical regions. The pest sucks plant sap, thereby weakening plants and causing shoot and leaf distortion (Brown et al, 1995). More significantly whiteflies secrete large amount of honeydew onto leaves and fruit, which in turn gets colonized by sooty molds, thus deteriorating the quality of greenhouse vegetables such as chilli, eggplant, tomato and okra.The first documentation of whiteflies in Malaysia was in 1935, albeit not as an economic pest, on chilli (C. annuum), soybean (Glycine max) and okra (A. esculentus) in the lowlands of Malaya. It has since been seen in numerous locations in Peninsular Malaysia on angled loofah (Luffaacutangula), brinjal (S. melongena), cucumber (Cucumissativus), french bean (Phaseolus vulgaris) and longbean (Vignasesquipedalis) (Syed et al, 2000). With its recognition as a polyphagouspest there is aconsiderable rise in the research dedicated to the whitefly (Inbar&Gerling. 2008). A key factor that determines the selection of the host plant for whitefly feeding is plant age (Horowitz. 1986), a demonstration of which was the increase of B. tabaci populations in pumpkin, bean, zucchini and other plants as they aged (Simmons, 1999). This study aims to better understand the relation between plant growth stages and whitefly populations
EKSPLORATION OF GIAM SIAK KECIL-BUKIT BATU BIOSFEER RESERVE FOR CARBOLYTIC FUNGI
(2014-05-21) Nugroho, TitaniaTjandrawati; Zul, Delita; Martina, Atria; Puspita, Fifi; Sepryani, Harni; Ismet, Rhahma Sari; Suhyana, Jajang; Utamy, WidyaRahmy
GiamSiak Kecil-Bukit Batu (GSKBB) Biosphere Reserve in Riau Province, Indonesia, has a unique tropical peat swamp forest with peat depth reaching up to 20 meters deep. As a tropical peat swamp forest it is a potential source for carbolytic enzyme producing microbes. In this paper we present our exploration at two different sites of the GSKBB Biosphere Reserve forest, representing primary and secondary forest, for carbolytic fungi. Although the isolation media was design for the specific isolation of Trichoderma, we isolated carbolytic enzyme producers from the genus Trichoderma, PenicilliumandAspergillus. From the primary forest, a total of four cellulase and two chitinase producing fungi were isolated to purity. From the secondary forest, a total of two cellulase and one chitinase producing fungi were isolated to purity. Highest specific activity of cellulase was produced by a Penicillium secondary forest isolate. Highest specific activity of chitinase was produced by an Aspergillus primary forest isolate, with a total chitinase crude extract specific activity of 0.04 U/mg at 40oC, pH 5.5.
EVALUATION OF CONSORTIUM CELLULOLYTIC MICROBES IN DEGRADATION OF RICE STRAW TO IMPROVE PLANT GROWTH
(2018-08-24) Linda, Tetty Marta; Mutalib, Sahilah Abd; Omar, Othman; Surif, Salmijah
A consortium of cellulolytic microbes (CCM) isolated from paddy fields were developed to degrade rice straw in the field. Under green house conditions, paddy plants grown in soil incorporated with the consortium cellulolytic microbes and straw for eight weeks showed significant (P ≤ 0.05) increases in total dry weight, biomass, stem length and seed weight compared to controls, suggesting the CCM to be effective in degrading the paddy straw and improving paddy growth. Laboratory phytotoxicity study showed a germination index of 116.7% indicating the CCM to be harmless to plants and suggesting it to be phytonutrient-phytostimulant
FAKTOR-FAKTOR RESIKO YANG BERHUBUNGAN DENGAN FREKUENSI PENYAKIT DIARE PADA BALITA (1-5 TAHUN)
(2014-05-21) Erika; Kumalasari, Imelda
Diarrhea is more dominant because it attacks the immune toddlers `who are still weak, so toddlers are particularly vulnerable to the spread of the bacteria that causes diarrhea. There are risk factors that affect the frequency of diarrheal disease in infants. The risk factors include nutritional status, environment, and parenting parents. The purpose of this study was to determine the risk factors relationship with the frequency of diarrhea in children under five health centers in the region of Siak. This study is a quantitative study using cross sectional approach. The research was conducted in the region of Siak health center in July 2012. The population in this study were all parents who have children in the region of Siak Health Center until July 2012. The sampling technique in this study by using Simple Random Samples with a sample of as many as 96 people. The result of the chi-square test statistic showed that there is a significant relationship between nutritional status (p = 0,000), enviromental (p = 0,000) and parenting parents ( p = 0,008) with the frequency of diarrhea in infants in the work area of Siak Health Center 2012. Mothers be expected always examined the health status of children under five to Posyandu or nearest health center
FAKTOR-FAKTOR YANG BERHUBUNGAN DENGAN PERSALINAN PRETERM
(2014-05-22) Utami, Sri
The incidence of preterm very varied. In developed countries the incidence ranges between 5-10% of all deliveries in the United States the incidence of preterm delivery ranges from 8-10% (Hacker, 2002), in Indonesia range from 10-20% in 2008. Analytical studies have been conducted with a retrospective review, the factors associated with preterm labor who were born in Arifin period of January 1 - December 31, 2011. The study found no significant relationship between age of mothers with preterm delivery, there is no significant relationship between peritas with preterm labor, there is a significant association between weight and the incidence of eclampsia severe Pre Eklamasi with preterm labor, there is no significant association between the incidence of Premature Rupture Of Membrane (PRM) with preterm labor and there is a significant association between the incidence of Haemorrhagic Ante Partum (HAP) with preterm labor.

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