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UNEJ e-Proceeding
Published by Universitas Jember
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Core Subject : Education,
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Articles 107 Documents
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Search results for , issue "2016: Proceeding The 1st International Basic Science Conference" : 107 Documents clear
BIOREDUCTION ADSORBENT (BIOSORBENT): RECOVERY TECHNOLOGY OF HEAVY METAL POLLUTION (CADMIUM/CD) IN POLLUTED LAPINDO WATER SOURCES USING BACTERIA AND DURIAN LEATHER Sueb Sueb; Eka Imbia Agus Diartika; Khasanah Sripalupi; Achib Irmawati
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Sources of water in three villages in Sidoarjo can no longer be consumed because it has been contaminated with heavy metals, one of them is Cadmium (Cd). Cadmium is a heavy metal that is dangerous after Mercury (Hg). Cadmium is dangerous because this element has high risk for blood vessel. Cadmium effects on humans in the long term and can accumulate in the body, especially the liver and kidneys. Handling heavy metal pollution can use biological organism, such as microbes and agricultural wastes. Previous research has identified indigenous bacteria that can reduce heavy metals Cd. From research Wildana et al. (2015) note that the efficiency of Cadmium biosorption by Lactobacillus acidophillus that has been immobilized can be seen from the percentage of removal of metal ions (% R) and the value biosorption capacity (qe). At the inlet concentrations low of 0.5557 ppm, the percentage of removal of metal ions (% R) obtained is the highest at 49.763%. Other researches have also demonstrated the ability of activated charcoal durian leather which can reduce Cd. Therefore, the authors took the initiative to combinate both the adsorbent to the hopes will be more effective at absorbing heavy metals Cd. Bacteria must be isolated prior to the media Na. Durian leather used to be carbonized and activated in advance with KOH.
MORPHOLOGICAL AND PHYSIOLOGICAL CHARACTERS OF CASSAVA (MANIHOT ESCULENTA CRANTZ) WHICH WET TOLERANT Rahmawati Rahmawati; Tri Agus Siswoyo; Didik Puji Restanto; Sri Hartatik; Sigit Soeparjono; Sholeh Avivi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Weather conditions often unstable changed and increase the floods of agricultural land. Land which was originally drought will experience wetness and need variety of a plant that wetness tolerant. This study were aimed to get cassava that wet tolerant and to study the morphological, physiological characters of cassava grown on wetness land. The experiment was conducted based on factorial random plot design that consisting two factors with five replications. The first factor were four varieties namely: V1 = Daun Ganja; V2 = Sawi Ketan; V3 = Kasesat Beracun; V4 = Gajah. The second factor was wet treatment consisting of 2 the condition that were K0 = as control, media with 100% field capacity; K1 = as wet treatment by watering of media maintain on -10 cm from media surface. The difference between treatments tested with Duncan Multiple Range Test (DMRT) with the probability 5%. Wet treatment started when plant aged was 2 months after planting, during eight weeks. The observations on variables based on morphological and physiological characters. Result showed that every varieties give the different response on wet treatment. Best response on wet tolerant variety shown by variety code of V2 (Sawi Ketan) were indicated by plant height, total leaf number produced, stem diameter, fresh weight of root, dry weight of root, fresh weight of shoot, dry weight of shoot, photosynthesis index, stomata conductivity and root volume.
HEMATOLOGICAL CHARACTERISTIC OF THE FEMALE ASIAN VINE SNAKE (AHAETULLA PRASINA BOIE, 1827) I Gusti A. Ayu Ratna Puspita Sari; Endah Sri Palupi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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There is less information about the hematological characteristic of snake in Indonesia. Morphology and morphotic elements size of erythrocyte and leukocyte of the female Asian Vine Snake (Ahaetulla prasina) in North Purwokerto, Indonesia, were studied. Blood was sampled by cardiac puncture and blood cells morphology and size were observed and measured from prepared blood smears. Erythrocyte was nucleated and oval in shape. Leukocyte were lymphocytes, heterophils, eosinophils, basophils and monocytes. The erythrocyte was slightly differ from those of other squamates. Morphology and morphotic size of blood cells provided information about the physiological character of Asian Snake Vine. More comprehensive study is necessary to understand the correlation of blood cells characteristic of snakes with other characteristic.
GENETIC VARIATION OF AEDES AEGYPTI (DIPTERA : CULICIDAE) BASED ON DNA POLYMORPHISM Rike Oktarianti; Sri Mumpuni
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Dengue hemorrhagic fever (DHF) is a health problem in Indonesia, particularly in Jember. Dengue is a disease caused by Dengue virus (DENV). Ae. aegypti is the main vector for transmission of Dengue viruses into human. The spread of Dengue virus caused by the vector density. The objective of this research is to study the genetic variation of Aedes aegypti based on DNA polymorphism by Random Amplified Polymorphic (RAPD) PCR analysis. The mosquitoes were collected from Arjasa, Mumbulsari and Mayang in Jember district. The primer were used to RAPD analysis are OPE 16, OPE 17, OPE 19, OPF 2, OPF 4 and OPF 6. The result showed, the genetic variation of Aedes aegypti from Arjasa, Mumbulsari and Mayang based on DNA polymorphism were 22.58%, 23.53% and 21.21% respectively.
COLLAGEN FROM SEA CUCUMBER (STICHOPUS VARIEGATUS) AS AN ALTERNATIVE SOURCE OF HALAL COLLAGEN M. H. Khirzin; Sukarno Sukarno; N. D. Yuliana; Laily Yunita Susanti; E. Chasanah; Y. N. Fawziya
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Collagen is a kind of proteins which becomes the main component of teeth, muscles, flesh, bone, and skin layer. It is generally used in various fields such as food, cosmetics, pharmaceutical and medical. Collagen which was commercialized in the market is derived from skin and bones of land-based mammalian such as calf, pig, and sheep. While it was being reported that there were many diseases spread by land-based mammalian in the last few years such as mad cow disease and avian flu. Besides that, pigs is forbidden to be consumed by moslem since Islam teaches them to consume halal food. Marine organism has a potential to be used as an alternative source of halal collagen. One of them is sea cucumber. Sea cucumbers, especially Stichopus sp, has a potential to be used as an alternative source of halal collagen instead of mammals. Nevertheless, the extraction of sea cucumber collagen still relies on pepsin enzyme from pig derivatives. The exploration of source and extraction process is urgently needed to gain halal collagen. Therefore, the aim of this study was to explore sea cucumber Stichopus variegatus as a source of halal collagen with acid extraction method. Research and Development Center for Marine and Fisheries Product Processing and Biotechnology, Ministry of Marine Affairs and Fisheries Jakarta (sponsors). This study was divided into two steps: extraction and characterization of collagen. Extraction of collagen produced yield of 16.40%. Characterization of collagen showed that the major components of amino acid were glycine (169 residues/1000residues), glutamic acid (111residues/1000 residues), proline (67 residues/1000 residues), alanine (64 residues/1000 residues) and molecular weight of collagen was 130.33 kDa. Collagen from sea cucumber Stichopus variegatus had similar characteristics to commercial collagen even though the yield of extraction was lower. This kind of collagen can be used as an alternative source of halal collagen either based on the source or the extraction process.
DETERMINANT FACTOR THAT INFLUENCED ANXIETY LEVEL AND ENERGY INTAKE AMONG ELDERLY Ninna Rohmawati
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Demographic changes structure was caused by elderly population increase through decrease number of morbidity and mortality. Indonesia has already turned to a country with aging population since the percentage of elderly population has already reached more than 7%. Specialized of Yogyakarta province with highest percentage of elderly in Indonesia, which was 14.02% in 2009. Choosing of food is a multidimensional behavior, affected by many factors, including psychological measures. Psychological factors such as anxiety, depression, and dementia have significant contributions in determining energy intake. In Indonesia, prevalence of anxiety in elderly was 34.92%. This research was aim to determine determinant factor that influenced anxiety level and energy intake among elderly in Yogyakarta municipality.This research was an analytic observational by using cross sectional study design. Total sample were 214 respondens. Technique of sample using multistage random sampling. Data were analyzed with chi square test and multiple logistic regression. Result showed that most dominant factor that influenced anxiety level was sex. Female elderly had 3.37 times higher risk to experience moderate anxiety level as compare to male elderly. A percentage of 67% female elderly experienced moderate anxiety level consumed fat and oils, and a 83% of them consumed cereals, tubers, and their manufactured products. A percentage of 26.2% subjects had moderate anxiety level. In groups of subjects with moderate anxiety level, intake of energy was mostly excessive.Most dominant factor that influenced anxiety level was sex. In groups of subjects with moderate anxiety level, intake of energy was mostly excessive.
SYNTHESIS OF ZINC OXIDE (ZNO) NANOPARTICLE BY MECHANO-CHEMICAL METHOD Siswanto Siswanto; Anita Yuliati; Mayasari Hariyanto
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Zinc Oxide nanoparticle have been synthesized by mechano-chemical method. The method is reacting zinc chloride (ZnCl2), Natrium Carbonate (Na2CO3), Sodium Chloride (NaCl) into Zinc Carbonate (ZnCO3) and Sodium Chloride (NaCl). This research focuses on the effect of variations in the length of time milling to the size of particles formed. Milling time used in this research are 0 hours, 15 minutes, 1 hour, 3 hours, 5 hours, 7 hours, 8 hours respectively. Calcination to remove CO2 carried out at a temperature of 4500C for 2 hours. This process may lead to aggregation of the particles so that the particles will swell due to the merger between the particles. Sodium Chloride (NaCl) removed by dissolving in aquadestilata with sonicator for 30 minutes a speed of 60 Hz. Characterization of the size of the particles formed is done using the Particle Size Analyzer. The measurement results show that the particles formed yet reached below 100 nm. 3 hours long milling time provides the best particle size is 135.6 nm. The particle size obtained when milling 1 and 7 hours respectively were 183.8 nm, 877.7 nm. ZnO compounds are formed for a variation of milling time 0 hours, 1 hour and 8 hours respectively was 12.55%, 13.31%, 14.8%.
Simulation of I-V Characteristics of Si Diode at Difference Operating Temperature:Effect of Ionized Impurity Scattering Siti Lailatul Arofah; Endhah Purwandari; Edy Supriyanto
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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The usage quality of Si Diode was influenced by the operating temperature. The increment of temperature caused the increased number of ionized impurities. Coulomb interaction between the impurities and the local charge carrier caused the scattering on the impurity. Furthermore, this scattering causes changes in the velocity and mobility of charge carriers. This gives an effect on the distribution of charge carriers, causing changes in the diffusion current density. In this paper, we perform the I-V characteristic of Si diode, simulated in two dimensional structure. Several temperatures (200K-473K) and also the charge carrier mobility were observed as the input parameter of the equation modelled. The simulation results show that the value of current density diffusion of Si Diodes was maximum at temperature of 200K and decreasing at a higher temperature of 473K.
Quantification Model of Qualitative Geological Data Variables for Exploration Risk Assessment in Prospect Cu-Au Porphyry Deposit Randu Kuning, Wonogiri, Central Java Nurkhamim Nurkhamim; Arifudin Idrus; Agung Harijoko; Irwan Endrayanto; Sapto Putranto
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Almost geological data variable contain some degree of uncertainty. Most decisions in mineral exploration was based on geological reports, measurements, calculations as well as ignorance of the geological uncertainty underlies all natural risks of the exploration effort. Risks affecting mineral exploration activities, among others caused by several things. Inherent natural variability in the process of geology and geological objects. Uncertainty on the conceptual and models, associated with incomplete knowledge and subjective interpretations of processes and geological objects. Errors can also occur when observing, measuring or evaluating samples or mathematical analysis of geological data. Data from exploration activities, can be grouped into two types of data, namely quantitative data (e g; grade) and qualitative data (geological data). Geological data variables still largely a qualitative data, resulting between some geologists are not infrequent errors of judgment (assessment of subjective data). This leads to misinterpretation of results of exploration that will ultimately impact on the exploration risk assessment. Currently, the quantification of qualitative data variable is one parameter which is becoming a necessity, because it will be easier in terms of interpretation, communication and measurable. Porphyry Cu - Au deposit in the Randu Kuning Prospect, Wonogiri has the characteristic geometry and grade distribution are quite complex. It is characterized by the appearance of some kind of vein and stockwork with different characteristics. Quantification of geological variables will result in a value that allows the quantification in quantifying exploration risk. For quantitative variables data (grade) using geostatistical methods, while for qualitative variables geological data using canonical correlation and multivariable regression.
Increased Concentration of Bioethanol by Rectification Distillation Sieve Tray Type Yuana Susmiati; Mochamad Nuruddin
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Bioethanol is one of the alternative energy which can be used to replace fossil fuels. Bioethanol used are typically high alcohol concentration. In the process of making bioethanol is usually produced with low alcohol content, hence the need for a purification process so that the consentrations are increased. One of bioethanol purification process is rectification distillation. This study aimed to test the rectification distillation apparatus sieve tray type and verify whether the alcohol content measurement using a pycnometer according to alcoholmeter. The results showed that the apparatus can be used to increase the ethanol concentration of 38% to 53%. This research can be demonstrated that the measurement of the concentration of ethanol by pycnometer method not much different from using alcoholmeter.

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