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AKUMULASI TIMBAL (Pb) DAN KEANEKARAGAMAN JENIS Lichenes DI TAMAN KOTA MEDAN
Get PDFThis reseach aim of the study is to examine factors affecting the accumulation of lead content (Pb) and other types Lichenes in Medan city park. This study was conducted on March 2010. The research location is determined by using purposive sampling method, in the three parks in the Beringin Park, Ahmad Yani Park, and Bunga Teladan Park. Lichenes species diversity existing in the three parks of Medan, consists of three types of tribes Physciaceae with body type of thalus Cructose are Dirinaria Picta, Dirinaria aplanata, and Pixine cocoes. At the park's biggest influence is the Beringin Park motorized pedicab (Betor) with regression equation Y = (-0.059) + 000157x and a private car with a value of Y = (-0.059) + 0.0009428x, at the Ahmad Yani Park is a private car with a value of Y = 0.011 + 0.0001501x, and at the Bunga Teladan Park of motorized pedicab (betor) with a value of Y = (-0.099) + 0.000535x to increment the accumulated content of Pb in the body thalus Lichenes. Accretion physical parameters that affect the accumulation of lead (Pb) in Beringin Park regrasi the temperature with the equation Y = (-0.059) + 0.002x, Ahmad Yani Park of moisture with the value Y = 0.011 + 0.0003243x, and light intensity with the value Y = 0.011 + 0.0009387x, while in Bunga Teladan Park of temperature with the value Y = (-0.099) + 0.005 x, and humidity, with a value of Y = (-0.099) + 0.0001543 x
Skrining Fitokimia dan Antimikroba Ekstrak Daun Kirinyuh terhadap Bakteri Staphylococcus Aureus Dan Escherichia Coli
Get PDFThis reseach aims to determine the composition of secondary metabolites of kirinyuh leaf extract (Euphatorium ordoratum.L) and antimicrobial properties of the extract against Staphylococcus aureus and Escherichia coli. The study was conducted in three phases: the first phase is manufacture kirinyuh leaf extract (Euphatprium odoratum L) through maceration method using N-Hexane solvent and methanol. In stage II, phytochemical screening, namely the identification of secondary metabolites (alkaloids, flavonoids, terpenoids and steroids) to the crude extract of leaves kirinyuh (Ephatorium odoratum L) in the form of antimicrobial properties of extracts against Staphylococcus aureus and with variations extract concentrations of 0%, 1 %, 5%, 10%, 15%, 20%, and 25% Echerichia coli and incubated at 37°C for 24 hours. The research found that such compounds secondary metbolit alkaloids, flavonoids, steronoid, and saponin, which dominates the secondary metabolites of four that alkaloid. While the screening test of phytochemical N-hexane extracts is not contain metbolit secondary compounds, testing against bacteria possess bioktivitas inhibition at concentrations of 15% with inhibition zone of 1.3 cm on Escherichia coli bacteria and 1.0 cm in bacteria Staphylococcus aureas. This shows kirinyuh leaf extracts have the ability as an anti-microbial
ANALISIS BAKTERI SALMONELLA-SHIGELLA PADA KUAH SATE PEDAGANG KAKI LIMA
Get PDFA study of Analysis Salmonella-Shigella in Sate Sauce, was conducted in Biology Laboratory, Faculty of Biology University Medan Area. The purpose of this study was to find out the bacteria found in the street vendors sate and detect the presence of Salmonella-Shigella in the sample. The results showed that the total number of total bacteria in sample was 24 x 104 CFU. Detection of Salmonelle-Shigella was done by growing bacteria on selective medium of Salmonella Shigella Agar (SSA) and showed positive results for Salmonella bacteria presence by the change of media color from green to blue
ETNOBOTANI TUMBUHAN OBAT DI MASYARAKAT ETNIS SIMALUNGUN KABUPATEN SIMALUNGUN PROVINSI SUMATERA UTARA
Get PDFIndonesia is a country with the second largest tropical forest in the world and has a high diversity of plants that is known as one of the seven megabio-diversity countries. Great biodiversity is stored potential of nutritious plants that can be utilized further. In addition to the diversity of these plants, Indonesia is also rich with ethnic and cultural diversity with a total of 1,068 ethnicities. Various Ethnic use of plants as ethnomedisin with the uniqueness of certain herbs and way of presentation. This study aims to inventoriate medicinal plants and parts used for herbs and inventory of medicinal herbs used by the people of Simalungun. This research uses explorative survey method with informant determination using purposive sampling from 5 subdistricts namely Silimakuta, Purba, Panei, Pematang Sidamanik and Dolok Batu Nanggar. The results show that healers / Battra are Simalungun. There are 92 Types of Medicinal Plants (TO) consisting of 28 Order and 45 Family. The highest percentage of families was found in Asteraceae and Euphorbiaceae with a value of 10.87%, the percentage of plant parts used was found in the leaf with a value of 55.21%, and the most widely used medicinal ingredients in treatment were for abdominal pain with a percentage of 9, 71%
IDENTIFIKASI KESELAMATAN PENANGANAN LIMBAH PELUMAS PADA PT.ALTRAK 1978 BALIKPAPAN
Get PDFOne of the B3 waste that needs to get special handling because it is produced in high amount in the society is the oil used oil (used oil). Used lubricating oil is produced from various human activities such as, industry, mining, and workshop. The purpose of this research is to know how to identify the handling safety of lubricant waste at PT.ALTRAK 1978 Balikpapan and to determine the proper controlling step. This research is designed as an observational descriptive evaluation research conducted by checklist, JSA (Job Safety Analysis) with observation, analyze , Observation and processing of data and information that has been collected systematically. The results showed that the handling of lubricant waste in PT.ALTRAK 1978 Balikpapan get the results of the value by using a percentage calculation of 72% if adjusted to the operational standard of the procedure is included in the assessment with enough results.Identifikasi safety handling lubricant waste in PT.ALTRAK 1978 Balikpapan can be done By making JSA (Job Safety Analysis) as well as adjustment to standard operational procedures with the implementation of the field
INVENTARISASI KUPU-KUPU DI UNIVERSITAS NEGERI MEDAN
Get PDFThis reseach aims to known the butterflies species at State University of Medan. Observation and collection of butterflies were conducted from March – April 2016 at State University of Medan. Butterflies observation conducted with scan sampling method at 09:00 to 17:00 in sunny days. This study consist of found 43 species of butterflies, belonging to 5 families, i.e. Pieridae, Papilionidae, Nymphalidae, Lycaenidae, and Hesperiidae. 15 species of butterflies are found in only one site but 2 species are found in all sites, i.e. Appias olferna and Papilio polytes
IDENTIFIKASI JENIS - JENIS IKAN DI SUNGAI BATANG GADIS KECAMATAN MUARASIPONGI KABUPATEN MANDAILING NATAL SUMATERA UTARA
Get PDFResearch about "Identification the type of fish in Sungai Batang Gadis Muarasipongi subdistrict Mandailing Natal Sumatra Utara" The study aims to determine the types of fish and Chemical Physics parameters. Research using descriptive methods and determination of observation stations is purposive sampling, that the sampling technique. The results of the study there are five types of fish that are grouped into two orders, namely the Cypriniformes and Siluriformes,and 3 Family namely Cyprinidae, Balitoridae, Sisoridae. The conclusion of the study there are 5 types of fish are included in the 2 Order and 3 Family entirely included into the group Osteichthyes. Most of the Order Cypriniformes and Siluriformes smallest. Most are family Cyprinidae. Results Physical and chemical parameters including water temperature 22oC; pH 7,53; brightness 1.40m; a depth of river 2.28 m; the flow velocity of river 2.09 m / sec; river width of 18 m
Variasi Morfologi Pteris Vittata l. (Pteridaceae; Pteridophyta) dan Korelasinya dengan Ketinggian Lokasi Tempat Tumbuhnya di Jawa
Get PDFPteris vittata has a high morphological variation and it has wide geographic regions around the world . Study of morphology and its correlation with with altitude of plant origin area in Java is very little informed. This aims of this research were first to study the diversity of morphological characters of P. vittata from Java; and to know the correlations among morphological characters to the plant orignated altitute; This study was conducted from September 2012 until September 2013. Plants materials were collected by exploration method. Morphological observations carried out on 130 individuals that had been collected from West Java, Central of Java and Yogyakarta in various altitude areas. Pteris vittata from Java Island varied in the morphological characters. The varied in the morphological characters i.e. size and shape of fronds, pinnae and apical segment. Variations in morphology was not correlated with altitude of plant origin area. Taxonomycally, P. vittata in Java can be divided into two groups infraspecies, namely P.vittata subspecies vittata and P.vittata subspecies emodi
SIFAT FISIK MINYAK ATSIRI DAUN PALA (Myristica fragrans Houtt) ACEH SELATAN
Get PDFEssential oils are oils derived from plants that are aromatic. Numeg leaves are part of plant that containing essential oil. Each of essential oils from different plants will have different physical properties. In this study, the essential oil is produced using steam distillation method. The purpose of this study was to determine the physical properties of essential oils of nutmeg leaves South Aceh. The physical properties of essential oils can be evaluated from the percentage of moisture content, ash content, aroma, color, and rendemen. The results showed that the essential oil of nutmeg leaves are pale yellow, has a characteristic smell of nutmeg, the percentage of moisture content and ash, viscosity, density is respectively 6.8%, 2.1%, 0.4% yield density, 3.8 P, 0576 g/cm3. The essential oil of nutmeg leaves South Aceh can be used as pharmaceuticals. But the density of leaf nutmeg oil does not comply with ISO Standard
KEANEKARAGAMAN JENIS MANGROVE DI DESA TANJUNG REJO KECAMATAN PERCUT SEI TUAN SUMATERA UTARA
Get PDFoai:oai.ojs.uma.ac.id:article/13Research on mangrove species diversity in the village of Tanjung Rejo Percut Sei Tuan district in North Sumatra was held in June-September 2012 which aims to determine mangrove vegetation species diversity, species density, frequency and dominance of mangrove species. Primary data obtain by sampling and direct observation by making the observation plots at the study site. Observations indicate that 14 mangrove species classified into eight families. Values of density, frequency and dominance for the highest level of the tree, and the seedling pacang contained on Avicenniaceae. Mangrove species diversity to the next level of the tree is 0.80 and the 1.38 level pacang 1.88 seedlings. The range indicates the diversity of mangrove species is low.Â