APPLICATION OF PLANT ESSENTIAL OILS FOR IMPROVING AIR QUALITY IN THE LECTURE-HALLS OF UNIVERSITIES
Journal Title: Вісник Національного Авіаційного Університету - Year 2018, Vol 75, Issue 2
Abstract
Purpose: The general goal of the article is to analyze air contamination of lecturer-halls by microorganisms and to investigate antimicrobial activity of plant essential oils for improvem ent of ecological state of indoor microflora. Methods: For determination of the total number of microorganisms and assessment of air microflora contamination, Sedimentation method (Koch’s Pour Plate method) was used. The colonies of microorganisms were calculated accord ing to the V. Omelianskii rule. Sta tistical processing of data made on the Microsoft Office Exel (with adequacy 95%). Indi cators of standard deviations were calculated by conventional procedures. The morphology of microorgani sms was studied on microscope "Mikmed 2" (with zoom × 1500). The impact of plant essential oils on chosen strains of microorganisms (Staphylococcus aureus UCM B-904, Pseudomonas aeruginosa UCM В -907, Escherichia coli UCM B-906) was estimated with the help of disc-diffusion method. Results: The round, white, yellow with a matte or shiny surface and with a smooth edge of the colonies of microorganism s were identified during the investigation. By the morphological features, microorganisms were gram-ne gative bacilli or gram-positive cocci. It has been established that the efficiency of plant essential oils appears in small concentrations and during of its increasing it changes insignificantly. In th e research of antimicrobial activity of essential oils with the help of disco-diffusion method, it has been determined that the essential oils of lavender and eucalyptus have antimicrobial activity against to all the strains investigated. Conclusions: It has been investigated that investigated essential oils (lavender, eucalyptus, and juniper) inhibit the microorganisms to increase in the concentrations 5-15 mcl/m3 and can be used as the effective method of ai r treatment. Based on the research, the essential oils of lavender and eucalyptus can be reco mmended to use after cla sses in the concentrations of 5 mcl/m 3 .
Authors and Affiliations
Tetiana Bilyk, Nataliia Lukianenko, Karina Vityk, Olesia Havryliuk
Keywords
Related Articles
- EP ID EP510224
- DOI 10.18372/2306-1472.75.13119
- Views 117
- Downloads 0
USE OF SLAG MATERIALS IN ROAD CONSTRUCTION
In the design of the pavement layers of th e base have the greatest th ickness. Therefore, their construction is associated with a high consumption of building materials. At the same time, the base layers...
SIMULATION OF PRECISION ATTITUDE AND HEADING REFERENCE SYSTEM PERTURBED BY ENVIRONMENTAL DISTURBANCES
Purpose: The paper focuses on problems of simulation of perturbed robust precision attitude and heading reference systems, which can be applied in navigation of marine vehicles. The main goal is to create the mathematica...
ESTABLISHMENT OF THE CHORNOBYL RADIOECOLOGICAL BIOSPHERE RESERVE AS RECOVERY BIOTECHNOLOGY IMPLEMENTATION OF THE EXCLUSION ZONE
Purpose: an article is dedicated to preservation of the unique territory that has an inimitable combination of forests, wetlands, ponds and fallow lands, which de facto became a radioecological testing ground, under curr...
PREREQUISITES FOR THE INTEGRAT ED GEOINFORMATION SYSTEMS IMPLEMENTATION FOR SPATIAL PL ANNING OF AIRPORT COMPLEXES
In the article the implementation possibilities of complex geographic information systems have been analyzed for spatial planning of airport complexes on the basis of research on the activity...
RPAS ADS-B AND TRAJECTORY CONTROL DATA TRANSMISSION VIA SATELLITE
Purpose: to develop a model of the satellite communication channel for an remotely piloted air system with adaptive modulation and orthogonal frequency division of channels; 2) to calculate the channel parameters with Ra...