Microorganisms Associated with Volatile Organic Compound Production in Spoilt Mango Fruits docx
Microorganisms Associated with Volatile Organic Compound Production in Spoilt Mango Fruits docx
... extract and identifying volatile organic compounds associated with spoilt sweet pepper using GC-MS.Materials and MethodsSample collectionTen spoilt and healthy intact ripe mango fruits were purchased ... time-consuming, labour-intensive, and/or do not reliably give consistent results (Doyle, 2007). This study is aimed at isolating and identifying microorganisms associated with spoilt mango fruits in ... I.J. Biotech.11Ibrahim et al. Microorganisms Associated with Volatile Organic Compound Production in Spoilt Mango Fruits Aliyu D. Ibrahim1*, Bankole S. Oyeleke3, Ummul...
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Chemical Composition of Vehicle-Related Volatile Organic Compound Emissions in Central California pdf
... trimethylpentanes and similar compounds in Sacramento gasoline (these are included with isoalkanes in Figure 5). These compounds would not be as much needed in Sacramento gasoline where MTBE and ethanol ... volatile alkenes present in gasoline. 19Figure 5. Composition of non-methane organic compounds in liquid gasoline by class.Figure 6. Normalized reactivity of liquid gasoline calculated using ... large increase in MTBE emissions (listed as oxygenates in Figure 1), an increase in highly branched alkanes, and a large reduction in aromatics. Isobutene and formaldehyde increased due to increased...
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Tài liệu Human-induced changes in US biogenic volatile organic compound emissions: evidence from long-term forest inventory data ppt
... slash pine (Pinus elliotii) from pine plantations.The increase in monoterpene emissions in the deepsouth was because of an increase in loblolly pine(P. taeda), both in pine plantations and in ... associate with plantations: sweetgum (Liqui-dambar styraciflua), which often appears in pine planta-tions in the south, and which in South Carolina andGeorgia increased significantly within pine plantations(although ... defined in Methods; and the set RBisoðjÞ contains all isoprene-emitting trees within plot j, excluding as before treesgreater than 5 in (12.7 cm) in diameter that were notmeasured in the first inventory...
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Detection of Pseudomonas aeruginosa in sputum headspace through volatile organic compound analysis potx
... −0.59 Volatile Organic Compounds (VOCs) were ranked according their VID with high values indicating a positive correlation with Pseudomonas aeruginosainfection and negative values indicating a ... showing significant higher in vivo concentra-tions in most strains of P. aeruginosa [18]. Thisbiomarker could then be used in the detection of P. aer-uginosa in breath, whether or not in combination ... determine the retentionindices of the individual compounds using a modifiedKovats method [33].Bacterial culturingSputa were inoculated on standard culture media (Bloodagar with optochin disc,...
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Volatile Organic Compound (VOC) measurements in the Pearl River Delta (PRD) region, China pdf
... Anthropogenic VOCsSources in China , College of Environmental Science, Beijing,China, Peking University, Master thesis, 2005 (in Chinese).Fu Linlin, Shao Min, Liu Yuan, Liu Ying, Lu Sihua, and TangDagang: ... species observed in industrial areas ofthe PRD; it is emitted directly from shoemaking, printing,leather manufacturing, furniture making, coating and chem-ical bonding agent production, and ... F. Q.:The analysis of various volatile solvents used in different indus-tries in Zhongshan, South China Journal of Preventive Medicine,28(6), 26–27, 2002 (in Chinese).Jobson, B. T., Berkowitz,...
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Optical Fiber Sensors to Detect Volatile Organic Compound in Sick Build- ing Syndrome Applications potx
... are obtained with intrinsic sensors combined with chemical dyes. This is the same case with VOCs. Sensing materials offer the possibility to detect a VOC if it interacts with the sensing layer, ... be multiplexed with other sensors. There are proposed sev-eral networks to handle with sensors [43], and this is very interesting when thinking about installing them in a building. All of them ... the transduction oc-curs, this is, inside or outside the fiber, dividing the sensors in two groups: intrinsic and extrinsic [15]. 4.1. Extrinsic Sensors In this case, the fiber just guides...
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USEPA REGION 9 TECHNICAL GUIDELINES FOR ACCURATELY DETERMINING VOLATILE ORGANIC COMPOUND (VOC) CONCENTRATIONS IN SOIL AND SOLID MATRICES potx
... Obtaining and Transferring Soils for In- Vial Analysis of Volatile Organic Compounds. US Army Cold Regions Research and Engineering Laboratory, Special Report 96-5. Hewitt, A.D. (1997) Preparing ... types. By preserving a cohesive matrix and minimizing surface area exposed to the atmosphere, VOC losses EPA Region 9 Technical Guidelines for Accurately Determining Volatile Organic Compound Concentration ... Technical Guidelines for Accurately Determining Volatile Organic Compound Concentration in Soil and Solid Matrices December 2005 - 10 - 8.0 REFERENCES American Society for Testing and Materials...
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Volatile Organic Compound Concentrations and Emission Rates Measured over One Year in a New Manufactured House pptx
... Measuring concentrations of volatile organic compounds in vinyl flooring. Journal Air & Waste Management Association 51: 174-185. Hodgson AT. 1999. Common Indoor Sources of Volatile Organic Compounds: ... unity for the most volatile compounds and generally decreased with decreasing compound volatility. Thus, the emission rates of the less volatile VOCs increased with increasing air change rate ... change rate, weather, volatile organic compound (VOC), formaldehyde, emission rate, indoor air quality Introduction Indoor exposures to toxic and irritating volatile organic compounds (VOCs) are...
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Risks Associated with Overcollection of Medicinal Plants in Natural Habitats
... hap-pening in tropical rain forests worldwide due, in particular, to habitat destructionfrom mining, removal of forest trees through cutting and the use of fire, livestockovergrazing, and farming. ... farming. In temperate regions the predominant causes are clear-cutting of forests, collecting wood from trees and shrubs for fuel, overgrazing bylivestock, mining, damming river systems, and allowing ... division15 Risks Associated with Overcollection of Medicinal Plants 373and either concentrate or produce required growth-regulating substances includingauxins and cytokinins.Some explants,...
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Tài liệu METHOD 21 - DETERMINATION OF VOLATILE ORGANIC COMPOUND LEAKS doc
... extension for sampling not to exceed 6.4 mm (1/4 in) in outside diameter, with a single end opening for admissionof sample.6.6 The instrument shall be intrinsically safe foroperation in explosive ... performed using a compound other than1157the reference compound. In this case, a conversion factormust be determined for the alternative compound such thatthe resulting meter readings during source ... VOC compound to the observed meterreading when measured using an instrument calibrated with the reference compound specified in the applicableregulation.3.7 Response time means the time interval...
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