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ANTIMICROBIAL ACTIVITY OF n-HEXANE EXTRACTS OF RED FRANGIPANI (Plumeria rocea)
Get PDFAntimicrobial assay of n-hexane plant extracts against Escherichia coli and Staphylococcus aureus had been done. Extraction with n-Hexane of the flowers yielded 2,08% of extract, while leaves and stems yielded 3,21% and 2,19% of n-hexane extracts, respectively. The extracts showed different activity against both bioindicators. The leaves extracts showed the strongest activity indicated by wider diameters of inhibition zone, 19,7 mm against E. coli and 13,3 mm against S. aureus at 10% of the extracts concentration. At the same concentration (10%), the steam and flower extracts showed less inhibitory activities with 11,3 mm and 8,3 mm against E. coli, and 12,0 mm and 11,0 mm against S. aureus. At the lowest concentration of the extracts, the leaves extracts showed the strongest activity against E. coli (14,3 mm) while the steam extracts showed highest inhibitory activity against S. aureus ( 7,7 mm). Based on antimicrobial assay, it was suggested that the leaves extracts demonstrated strongest activity than other extracts. It was assumed that leaves extracts contained more secondary metabolite than flowers and steams, and the leaves have phenol compounds which are not present in other extracts
Trichoderma virens ISOLATED FROM COCOA PLANTATION IN ACEH AS BIODECOMPOSER COCOA POD HUSK
Get PDFSustainable development on cocoa farming have been places great emphasis on the management of natural resources for Cocoa pod husk. Until now, there has been much public attention for a farming waste, environment polluting and a place to develop various diseases, especially fungal Phytopthora. To overcome these problems, it needs to utilize alternative cocoa pods. The aims of this study were: (1) to determine the potential use of Trichoderma virens isolated from cocoa plantation in Aceh as bio-decomposer in the composting process cocoa pods. The composition of potential use experiment; Manure+Trichoderma (PT); Cocoa pod husk+Trichoderma (KT); Cocoa pod husk + Manure (KP); Cocoa pod husk +Manure+Trichoderma (KPT) has been tested. The analysis result showed that the combined use of Trichoderma virens compost although no effect on the color, texture and smell of compost but could be effect on characterized of compost maturity by characteristics of C/N compost. The content of C/N compost on all treatments in accordance with the standard compost maturity thus considered quite feasible to be applied to the crop
AN INDICATION OF AFRICAN CATFISHS (CLARIAS GARIEPINUS) BEHAVIORAL CHANGES AS A RESPONSE FOR INCREASED SEISMIC ACTIVITY
Get PDFThis report was aimed to describe the behavioral changes of catfish as observed before two different earthquakes hit the Province of Aceh, Indonesia in year of 2012. A number of 5 Africans catfish (Clarias gariepinus) were placed in an aquarium located in Gapang, Sukakarya Sub-district of Sabang Town, Aceh. Their behavior activities were observed manually at three different times (08.00 AM, 01.00 PM, and 05.00 PM) every day from 1st March up to 11th April 2012. The result of observation showed that the activity of catfish was different between all of them from 1st March 2012 up to morning observation on 11th April 2012. Most of those activities was not showed as very active behavior. However, their behavior was very active in the same pattern when observed at noon and afternoon times on 11 April 2012. On this date, there were two consecutive earthquakes happened at magnitude of 8 Richter Scale at 03.38 PM and 05.43 PM. The epicenter of this earthquake was in Simeulue, with the distance of more and less of 390 km from observation station of catfish in Gapang. It was noted that this abnormal behavior possibly showed as an indication of their ability to detect the increase of pre-seismic activity at 2.38 hours and 43 minutes before the two earthquakes. Perhaps, it is the result of their response to the increase of pre-seismic electromagnetic wave. Further continuous observation and research is needed to ensure the role of Africans catfish (Clarias gariepinus) as abio-sensor for the increase of seismic activity
Potency Study of N-Hexane Extracts of Black Plum (Syzygium cumini (L.) Skeels) in the Inhibitation Growth of Salmonella typhi and Candida sp.
Get PDFN-hexane extracts of the bark from black plum (Syzygium cumini (L.) Skeels) showed activity against Salmonella typhi. Meanwhile, the result showed that N-hexane was not able to inhibit the growth of Candida sp. The research was done at Microbiology laboratory, Biology Department Faculty of Mathematics and Science, Syiah Kuala University. The barks of black plum were collected from Aceh Besar District. The extraction method for black plum used maceration with N-hexane and than concentrated in rotary evaporator. The disc diffusion method used to screen the antimicrobial activity with 20 %, 30 %, 40 % dan 50 % concentration
THE EFFECT OF TOMATO EXTRACT (Lycopersicon esculentum) ON THE FORMATION OF ATHEROSCLEROSIS IN WHITE RATS (Rattus norvegicus) MALE
Get PDFThe aim of this research was to find out anti-cholesterol activity intomato extract (Lycopersiconesculentum) on blood lipid profile and its potential application in the prevention of atherosclerosis in rats fed withhigh cholesterol diet. This research employed a complete randomized design with unidirectional pattern by usingwhite rats (Rattus norvegicus) divided into five groups. Negative control group was fed with standard diet, whilepositive control groups were fed with high cholesterol (hypercholesterolemia) diet, group Kwere fedwith tomato extract at a dose of 10, 20, and 40 mg/kg together with high cholesterol diet. The result of this researchshowed that high cholesterol diet fed decreased simultaneously with tomato extract at a dose of 10, 20, and 40 mg /kgof rats after 60 days of treatment. Tomato extract was able prevent the formation of plaque in the coronary arteries ofrats fed with hypercholesterolemia diet. Effective dose oftomatoextractused in this study was 20-40mg/kg
The Effect of Ge Content on the Optical and Electrical Properties of A-Sige: H Thin Films
No full textThe effect of Ge content on the optical and electrical properties of a-SiGe:H thin films deposited by HWC-PECVD had been investigated. The a-SiGe:H films ware grown on corning glass 7059 substrate using 10% diluted mixture of GeH4 and SiH4 gases, respectively. The GeH4 gas flow rate was varied from 2.5 12.5 sccm, while the flow rate of SiH4 was kept constant at 70 sccm. The results showed that the deposition rate of a-SiGe:H thin films increased by increasing of GeH4 gas flow rate. In addition, the Ge content in the film increased and the optical band gap decreased. The dark conductivity of a-SiGe:H films were relatively constant, whereas the photo conductivity decreased with increasing of Ge content
The Effect of Curry Leaves (Murayya Koenigii L.) on Blood Glucose Levels In Alloxan Diabetic Mice (Mus Musculus)
Get PDFThis study was conducted to determine the effect of ethanol extract of curry leaves (Murraya koenigii L.) on blood glucose levels in alloxan diabetic mice (Mus musculus). The diabetic conditions were made by giving alloxan 75 mg/kg body weight (BW) and the hypoglycemic effects of extract of curry leaves given with various doses. This study used 24 male mice strain Balb/c in four groups of treatment with six replications, namely the negative control group, the ethanol extract of curry leaf tree 50% mL/10g body weight group, 70% mL/10g body weight group and 90% mL/10g body weight group. The treatment was given orally by using a gastric sonde for 14 days. Blood samples were taken through the sinus caudalis using a scissors. Blood glucose level was measured at 1st , the 8th and the 24th of treatment using blood glucose test strips and Nesco Multicheck apparatus. Blood glucose data were analyzed by one way ANOVA (Analysis of Variants) and followed by Tuckey test at significance level of 5%. The result showed that treatment of ethanol extract of curry leaves (Murraya koenigii) at various doses significantly affected the decrease on blood glucose levels of mice (Mus musculus) alloxan diabetic
XRD ANALYSIS OF Bi-2212 SUPERCONDUCTORS: PREPARED BY THE SELF-FLUX METHOD
Get PDFAn experiment had been carried out on formation of Bi-2212 crystals with the self-flux method. Flux was used and derived from CuO and CaCO3. The process of synthesis was equipped with the melting process at temperature 890 C with time variation of melting 35 minutes and 40 minutes, followed by slow cooling at a rate of 1C/hour for 70 hours. The results were obtained and characterized by XRD test. This research aimed to produce superconducting materials with self-flux method, calculate the percentage of the value of the volume fraction, the percentage of oriented phase and impurities. Samples generated from XRD measurements were made to match with the XRD Strobells pattern of the superconducting Bi-2212 standards. The results showed that the value of the volume fraction of 2212 phase and the phase of the highest oriented melting at 40 minutes were equal to 67.68% and 38.89%, while the smallest impurity phase of 32.32% were obtained at the same time melting
MINERALS COMPOSITION IN ROCKS FROM GOLD MINING AREAS AT GUNONG UJEUN, KRUENG SABEE, ACEH JAYA
Get PDFCurrently, several regional general hospitals in Banda Aceh now have excellent support facilities, one of which is a diagnostic X-ray machine. The performance of diagnostic X-ray machine should be checked to determine if the dose received does not harm a patient and produce a good image and provide diagnostic information in a timely and accurate, therefore there are necessary for quality control activities on the machine X-ray. Factors that affect the dosing and imaging results, among others, the amount of the provision of current and voltage. From the research shows that the value of the output voltage generated is not much different from the value of the input voltage with a percentage value below 5%. This value shows a good output machineX-ray because it is still under the maximum tolerance limit of 10%. So the overall results of observations on the machineX-ray is in hospital, the quality control measurements gave values still within safe limits. Then by giving a higher input voltage turns also affect the amount of energy produced, thus affecting also absorbed dose X-rays are produced
Connectivity Algorithm in Simple Graphs
Get PDFThis paper discusses about connectivity algorithm in simple graphs. The algorithm has three stages, namely, adjacent vertices search, adjacent vertices investigation and component investigation. The aim of connectivity algorithm is to check whether a graph is connected or disconnected with the scope set. There are three sets which are used in this algorithm, namely, vertex, edge and adjacent vertices sets. The simple graph is connected if the graph has only one component or if the number of adjacent vertices elements is equal to the number of vertices. Otherwise, if the simple graph has more than one component or if the number of adjacent vertices elements is not equal to the number of vertices then the algorithm will conclude that the graph is disconnected