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Tytuł:
Wstępna ocena możliwości zafałszowania olejków eterycznych
Pre-assessment of the essential oils adulteration
Autorzy:
Chyc, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1402365.pdf
Data publikacji:
2020
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Tematy:
ATR-FTIR
ylang-ylang
olej paczulowy
olejek drzewa herbacianego,
olejek eukaliptusowy
patchouli oil
tee tree oil
eucalyptus oil
Opis:
W artykule przedstawiono wyniki badań nad oceną możliwości zafałszowania olejków eterycznych dostępnych na polskim rynku. Badania przeprowadzono za pomocą analizy z zakresu podczerwieni (FTIR) na próbkach olejków: drzewa herbacianego, eukaliptusowego, ylang-ylang i paczulowego. Otrzymane widma FTIR porównano z widmem oleju (tłuszczu) roślinnego. Na podstawie przeprowadzonej analizy stwierdzono, że olejek paczulowy zostały zafałszowany, natomiast w przypadku olejku ylang-ylang zastosowana metoda analityczna nie daje możliwości jednoznacznej informacji dotyczącej zafałszowania olejku.
The paper presents the results of investigation on the assessment of the possibility of adulteration of essential oils available on the Polish market. The research was carried out by means of an infrared (FTIR) analysis on samples of the following oils: tea tree, eucalyptus, ylang-ylang and patchouli. The obtained FTIR spectra were compared with that of vegetable oil (fat). Based on the analysis, it was found that the patchouli oil was adulterated. ATR-FTIR is not very useful method sufficiently reliable method to confirm adulteration of ylang-ylang oil.
Źródło:
Science, Technology and Innovation; 2020, 11, 4; 1-7
2544-9125
Pojawia się w:
Science, Technology and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards autonomic semantic-based management of distributed applications
W kierunku autonomicznego, opierającego się na opisie semantycznym, systemu zarządzania aplikacjami rozproszonymi
Autorzy:
Funika, W.
Kupisz, M.
Koperek, P.
Powiązania:
https://bibliotekanauki.pl/articles/305581.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
autonomiczność
monitorowanie
zarządzanie
ontologia
Eucalyptus
autonomicity
monitoring
management
ontology
Opis:
In this paper we present our approach to the management of distributed systems based on semantic description of available resources. We use ontologies for a semantic description of the monitored system and other aspects of monitoring and management (such as metrics) and introduce a feedback loop on underlying infrastructure. Such an approach allows to automate monitoring and the ease the work of administrator. We introduce concepts behind a novel automatic management system, SAMM, developed within our research. We discuss the core mechanisms used in the system - the estimation of future measurements, approach to knowledge gathering, and the process of decision making. Then we provide some details on the architecture and implementation of SAMM.
Publikacja ta przedstawia nowe podejście do zagadnień monitorowania i zarządzania systemami rozproszonymi, wykorzystujące ontologiczny opis zasobów przez nie udostępnianych. Podejście to wykorzystuje ontologie do opisu semantycznego monitorowanego systemu, a także innych aspektów monitorowania i zarządzania nim (np. dostępne metryki) oraz wprowadza sprzężenie zwrotne na monitorowanej infrastrukturze. Pozwala to na automatyzację procesu monitorowania i zarządzania w celu ułatwienia pracy administratora. Publikacja opisuje także działanie nowatorskiego systemu SAMM, który powstał w wyniku badań. Przedstawione zostały również koncepcje dotyczące estymacji pomiarów, tworzenia baz wiedzy oraz procesu podejmowania decyzji. Artykuł opisuje zarówno architekturę SAMM-a, jak i szczegóły implementacyjne.
Źródło:
Computer Science; 2010, 11; 51-63
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Use of Eucalyptus Grandis Bark and Root as Raw Material in Pulp and Paper Production
Autorzy:
Çiçekler, Mustafa
Tutus, Ahmet
Üzüm, Velican
Powiązania:
https://bibliotekanauki.pl/articles/27323530.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
Eucalyptus grandis
bark
root
pulp
paper
Opis:
The suitability of Eucalyptus grandis bark and root for the pulp and paper industry was investigated. The bark of E. grandis was cooked using sodium borohydride (NaBH4) in the kraft process, while the root of E. grandis was cooked using the soda-anthraquinone (AQ) process. Four different charges (0.0, 0.3, 0.5, 0.7%) of NaBH 4 and AQ used as catalysts were added to the cooking liquor used in the processes. The chemical, mechanical and optical properties of the produced pulps were investigated and characterized. The yields, viscosity values, kappa numbers, as well as the brightness, tensile, burst and tear indices of the pulps were determined. The yield (RP: 39.1%, BP: 36.8%), viscosity value (RP: 897 cm 3/g, BP: 650 cm 3/g) and the kappa numbers (RP: 90, BP: 50) of the pulps produced from the root (RP) were higher than those of the pulps produced from bark (BP). The catalysts generally affected all the pulp properties, improving the properties of BP and RP. It was concluded that E. grandis bark and root can be suitable for the pulp and paper industry.
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2023, 66, 211; Art. no. 1644-3985.425.02
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The structure and properties of eucalyptus fiber/phenolic foam composites under N-β(aminoethyl)-γ-aminopropyl trimethoxy silane pretreatments
Autorzy:
Ma, Y.
Wang, C.
Chu, F.
Powiązania:
https://bibliotekanauki.pl/articles/778793.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
eucalyptus fiber
pheonlic foam
N-β(aminoethyl)-γ-aminopropyl trimethoxy silane
surface modification
composites
Opis:
Eucalyptus fibers were modified with N-β(aminoethyl)-γ-aminopropyl trimethoxy silane to research the fiber surface’s changes and the influence of the treatment on the mechanical properties, flame resistance, thermal conductivity and microstructure of eucalyptus fiber composite phenolic foams (EFCPFs). The results showed that the partial of hemicelluloses, waxes, lignin and impurities from the fiber surface were dissolved and removed. Compared with untreated EFCPFs, the mechanical properties of treated EFCPFs were increased dramatically; The size of cells was smaller and the distribution was more uniform; The thermal conductivities were basically reduced; Especially the ratio of mass loss decreased obviously. However limited oxygen indexs (LOIs) reduced. And the mechanical properties and LOIs of EFCPFs were basically decreased with the increase of eucalyptus fibers. By comprehensive analysis, the results showed that the interfacial compatibility has been significantly improved between eucalyptus fibers and phenolic resin. And the suitable dosage of eucalyptus fibers was about 5%.
Źródło:
Polish Journal of Chemical Technology; 2017, 19, 4; 116-121
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The endomycorrhizal fungal species and their effects on the growth and nutrient characteristics of Eucalyptus maidenii seedlings in China
Autorzy:
Wang, X.
Kong, X.
Zhao, Y.
Cao, Y.
Cao, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2077654.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Eucalyptus maidenii
endomycorrhizal fungi
major species
Opis:
Eucalyptus maidenii plantations are typically fertilized to increase the yields of eucalyptus oil and timber. However, the application of chemical fertilizers is costly and can cause environmental pollution and soil erosion. Mycorrhiza fungi can facilitate the cultivation of optimal seedlings while promoting the growth of trees. To date, investigations into the inoculation of endomycorrhizal fungi to enhance the productivity of E. maidenii in Yunnan, China have not been undertaken. The species/dominant species of endomycorrhizal fungi on E. maidenii in Yunnan were isolated and iden- tified. The effect of endomycorrhizal fungi on E. maidenii was elucidated. The major species of endomycor- rhizal fungi that affect E. maidenii were ascertained. Bulk soil was collected from an E. maidenii plantation, and the species of endomycorrhizal fungi were inves- tigated. The effect of the endomycorrhizal fungi on E. maidenii were analyzed via a single factor experimental design, where the number of spores of endomycorrhizal fungi in the seedling substrate were controlled. The major endomycorrhizal fungi species that affected E. maidenii were ascertained via stepwise regression analysis. Five endomycorrhizal fungal species were isolated from the bulk soil, with the dominant being Glomus ag- gregatum and Glomus mosseae. With higher counts of endomycorrhizal fungal spores in the seedling substrate, the infection rate and intensity of seedlings were observed to increase, as well as the NPK concentrations of the bulk soil. With the increased nitrogen concentration in the bulk soil, the nitrogen concentration of the aerial components of the seedlings also increased. The NPK concentrations in the bulk soil and seedlings, the second order lateral roots, the root activity, and the seedling height were significantly promoted by the presence of endomycorrhizal fungi (the third experimental treatment). The NPK concentrations of the bulk soil and seedlings, as well as the growth indices of seedlings increased through endomycorrhizal fungi inoculation. The major species of the endomycorrhizal fungi on E. maidenii were G. aggregatum, Glomus multicaule, and Claroideoglomus etunicatum.
Źródło:
Dendrobiology; 2020, 83; 68-74
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasoning Characteristics and Potential uses of Eucalyptus pilularis, Eucalyptus viminalis and Trichilia dregeana lumber tree species
Autorzy:
Kaba, Gemechu
Desalegn, Getachew
Powiązania:
https://bibliotekanauki.pl/articles/1031739.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Eucalyptus pilularis
Eucalyptus viminalis
Lumber quality
Trichilia dregeana
moisture content
seasoning
seasoning defects
shrinkage characteristics
timber species
Opis:
Technical information on lumber seasoning, moisture content (MC), density, mechanical, workability and chemical characteristics would strongly determine rational utilization of each lumber species. A study was conducted on home-grown two Eucalyptus species (Eucalyptus pilularis and Eucalyptus viminalis) and one indigenous (Trichilia dregeana) timbers with the main objective of determining some characteristics of lumber that will indicate quality and proper utilization. Study species were harvested from Shashemene, Asella and Arjo sites, respectively. The experimental design for seasoning and density was complete randomized design, a factorial experiment. The experiments were conducted using air and kiln seasoning methods. To determine initial moisture content oven drying method was used. The mean initial MC for the three timber species were 48.25%, 56.1% and 65.45%, respectively. The species were classified as very rapid seasoning rate during kiln seasoning. The mean shrinkage values were Tangential (6.31, 4.94 and 4.43%), radial (3.4, 4.02 and 2.10%) volumetric (9.46, 8.6 and 6.37%), when they seasoned from green to 12% MC, respectively. Seasoning defects such as cup, bow, crook, end split, surface and end-checks were observed, though the extent varies with species. The density of E. pilulalris, E. viminalis and T. dregeana at 12% MC was 780, 810 and 530 Kg/m3, respectively. The one-way analysis of variance indicated that there was significant difference (P>0.001) in initial MC, final MC, density values at different MC and shrinkage characteristics. They revealed good lumber characteristics and qualities, comparable with many indigenous and home-grown exotic timber species in density, seasoning rate and shrinkage. The tree species have to be well managed, properly harvested and sawn. Boards have to be properly stacked and seasoned to about 12% MC, with kiln and air seasoning methods that can help to minimize seasoning time, seasoning defects, shrinkage characteristics and increase quality.
Źródło:
World News of Natural Sciences; 2020, 29, 3; 162-178
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozkład wymiarów cząstek wybranych emulsji w zależności od zawartości emulgatora
Particle size distribution of selected emulsions depending on emulsifier content
Autorzy:
Zalewska, A.
Grubecki, I.
Michałko, J.
Powiązania:
https://bibliotekanauki.pl/articles/2073298.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
emulsja
rozkład wielkości cząstek
olejek miętowy
olejek eukaliptusowy
emulsion
particle size distribution
mint oil
eucalyptus oil
Opis:
Przeanalizowano wpływ zawartości emulgatora na rozkład wielkości cząstek mieszaniny olejków miętowego i eukaliptusowego oraz witaminy A. Układ dyspersyjny homogenizowano przy stałej liczbie obrotów mieszadła. W badaniach wykorzystano dyfraktometr laserowy HELOS BR. Stwierdzono, że im wyższe było stężenie emulgatora, tym mniejsza była średnica Sautera i średnica objętościowa, a tym samym mieszanina była lepiej zhomogenizowana.
The effect of emulsifier content on particle size distribution in the mixture of mint and eucalyptus oils and vitamin A was studied. The systems were homogenized at a constant stirrer rotational seed. HELOS BR laser diffractometer was used in research. It was proved that the Sauter and volumetric mean diameters, and consequently, the better homogenization of mixture were smaller for the higher emulsifier concentration.
Źródło:
Inżynieria i Aparatura Chemiczna; 2017, 5; 184--185
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality assessment of the essential oil from Eucalyptus globulus Labill of Blida (Algeria) origin
Autorzy:
Boukhatem, M. N.
Amine, F. M.
Kameli, A.
Saidi, F.
Walid, K.
Mohamed, S. B.
Powiązania:
https://bibliotekanauki.pl/articles/411538.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Eucalyptus globulus Labill
Chemical composition
Essential oil
Gas Chromatography
Eucalyptol
Opis:
Despite the reputation earned by aromatic and medicinal plants of Algeria, the chemical constituents of Eucalyptus globulus essential oil (EGEO) of Blida origin has not previously been investigated. Thus, the present study has been conducted for the determination of chemical constituents and different physico-chemical properties of the EGEO. Chemical composition of the EGEO, grown in Algeria, was analysed by Gas Chromatography-Mass Spectrometry. The chemical components were identified on the basis of Retention Time and comparing with mass spectral database of standard compounds. Relative amounts of detected compounds were calculated on the basis of GC peak areas. Fresh leaves of E. globulus on steam distillation yielded 0.96 % (v/w) of essential oil whereas the analysis resulted in the identification of a total of 11 constituents, 1.8 cineole (85.8 %), α-pinene (7.2 %), and β-myrcene (1.5 %) being the main components. Other notable compounds identified in the oil were β-pinene, limonene, α-phellandrene, γ-terpinene, linalool, pinocarveol, terpinen-4-ol, and α-terpineol. The physical properties such as specific gravity, refractive index and optical rotation and the chemical properties such as saponification value, acid number and iodine number of the EGEO were examined. The oil extracted has been analyzed to have 1.4602 - 1.4623 refractive index value, 0.918 - 0.919 specific gravity (sp.gr.), +9 - +10 optical rotation that satisfy the standards stipulated by European Pharmacopeia. All the physical and chemical parameters were in the range indicated by the ISO standards. Our findings will help to access the quality of the Eucalyptus oil which is important in the production of high value essential oils that will help to improve the economic condition of the community as well as the nation.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 17, 3; 303-315
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porownanie metod odkazania nasion eukaliptusa klujacego [Eucalyptus gunnii Hook.] wysiewanych w kulturach in vitro
Autorzy:
Koziara, Z
Powiązania:
https://bibliotekanauki.pl/articles/803325.pdf
Data publikacji:
2002
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
eukaliptus klujacy
kultury in vitro
nasiona
odkazanie
Eucalyptus gunnii
rosliny ozdobne
Opis:
Przetestowano 4 techniki sterylizacji nasion eukaliptusa kłującego. Dwie z nich powszechnie stosowane, oparte na chloraminie i podchlorynie wapnia, a dwie na podchlorynie sodu zawartym w Domestosie Metody oparte na Domestosie o 35% skracały średni czas kiełkowania nasiona do 0,8 dnia. Przy podchlorynie wapnia oraz chloraminie średni czas kiełkowania nasiona był dłuższy i wynosił odpowiednio 1,2 oraz 1,3 dnia. Obydwa sposoby odkażania z użyciem Domestosu skutecznie ograniczały zakażenia, a przy tym nie hamowały procesu kiełkowania nasion. Pozostałe z użytych środków obniżały siłę kiełkowania do 74% w przypadku chloraminy i aż do 55% w przypadku podchlorynu wapnia.
Application of Domestos (house bleach) solved at 1 : 5 ratio for 30 minutes was found to be most efficient in disinfecting seeds of Eucalyptus gunnii HOOK, planted in in vitro culture. Moreover, it improved the germination, supplying the initial seedlings of very good quality. The methods based on Domestos shortened the average germination time by 35% i.e. to 0.8 day while with calcium hypochlorite and chloraminę the average period of seed germination was 1.2 and 1.3 days, respectively. Two methods of disinfection with the use of Domestos efficiently limited infections without inhibiting the process of seed germination. The remaining treatments decreased the germination capacity by chloraminę to 74% and by calcium hypochlorite to 55%.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2002, 483; 119-124
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operating systems efficiency in cloud environments
Wydajność systemów operacyjnych w środowiskach chmurowych
Autorzy:
Sawicki, D.
Powiązania:
https://bibliotekanauki.pl/articles/158725.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
wirtualizacja
sieci chmurowe
Eucalyptus
Nimbus
virtualization
cloud computing
Opis:
This paper presents performance comparison of operating systems running on different cloud environments. The main focus is to compare the performance of the cloud systems: Eucalyptus, Nimbus and virtual system. The performance, of the encountered at the present time solutions of the cloud and virtual systems, is considerably closer to the operating system installed locally. The results of the carried out tests show that in some areas the system installed locally performs better, but in the high throughput computing the cloud environment points out.
Artykuł prezentuje porównanie wydajności systemów operacyjnych uruchamianych w różnych środowiskach chmurowych. Główny nacisk położony jest na porównanie wydajności systemów chmurowych: Eucalyptus Nimbus wraz z system wirtualnym. Wydajność obecnie dostępnych rozwiązań systemów chmurowych i wirtualizacji jest zbliżona do lokalnie zainstalowanych systemów operacyjnych. Wyniki przeprowadzonych badań wskazują, że w niektórych obszarach lokalnie zainstalowany system działa lepiej, ale w czasie, gdy wymagana jest duża przepustowość, środowisko chmurowe jest wydajniejsze.
Źródło:
Prace Instytutu Elektrotechniki; 2012, 260; 185-197
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Involvement of carbohydrates and antioxidant enzymes in the oxidative balance during drought and recovery: the eucalyptus case
Autorzy:
Correia, B.
Silva, S.
Jesus, C.
Valledor, L.
Dias, M.
Costa, A.
Santos, C.
Pinto, G.
Powiązania:
https://bibliotekanauki.pl/articles/79853.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
carbohydrate
antioxidative enzyme
oxidative balance
drought
recovery
cellular function
abiotic stress
reactive oxygen species
eucalyptus
Eucalyptus globulus
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extraction of eucalyptus oil as reduction of bacterial growth in drinking water
Autorzy:
Dubey, A.K.
Sahu, O.
Powiązania:
https://bibliotekanauki.pl/articles/11148.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
extraction
eucalyptus oil
reduction
bacterial growth
drinking water
composition
essential oil
growth rate
microbe
Opis:
Drinking water is acting as life line for living thing on the Earth, without that no life. Due to global industrialization availability of pure water is one of the major issues. The effluent are directly or indirectly discharge through the river stream, which affect the ground as well as sea water and climatically cycle water reach to us. In that condition medicine are required for quire purpose. In the world so many plants and herbs are available which are used as antimicrobial and sources of medicines. Today the large number of drugs in use is derived from plants. The important advantages for therapeutic uses of medicinal plants in various ailments are their safety besides being economical, effective and easy availability. In this regard’s herb plant Eucalyptus extracted oil is used as antibacterial agent to treat the drinking water.
Źródło:
International Letters of Natural Sciences; 2014, 11, 2
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of biological activities of two essential oils as a safe environmental bioinsecticides: case of Eucalyptus globulus and Rosmarinus officinalis
Autorzy:
Ainane, Ayoub
Abdoul-Latif, Fatouma M.
Abdoul-Latif, Talal M.
Ainane, Tarik
Powiązania:
https://bibliotekanauki.pl/articles/1064777.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
Eucalyptus globulus
Rosmarinus officinalis
essential oils
insecticidal activity
microbial activity
Opis:
All works of this article were conducted to investigate chemical composition and insecticidal and antimicrobial properties of Eucalyptus globulus and Rosmarinus officinalis essential oils isolated by hydro-distillation of its aerial parts. Analysis of the essential oils on the basis of gas chromatography and mass spectrometry (GC/FID and GC/MS) revealed the presence of 82 organic volatiles representing 98.63% of the total constituents of Eucalyptus globulus and the presence of 45 organic volatiles representing 98.53% of the total constituents of Rosmarinus officinalis. The major compounds for Eucalyptus globulus were estragole (28.14%), terpinolene (7.12%), 1,4-hexadiene-5-methyl-3-(1-methylethylidene) (7.01%), linalool (5.54%) and furfural (4.66%) and for Rosmarinus officinalis were (-)-camphor (31.16%) and ß-caryophyllene (18.55%), 3,4-dimethyl-(Z,Z)-2,4-Hexadiene (9.08%), ?-fenchene (4.67%), cis-verbenone (4.33%) and Bornyl acetate (3.4%). The efficacy of the two essential oils was evaluated on the insect pests Sitophilus granarius of wheat and was remarkable with lethal doses of 50% tending towards 1 µL·cm–3. The broth microdilution method as a complementary test was conducted to test the antimicrobial activity of the essential oil against: Staphylococcus aureus, Enterococcus faecium, Listeria monocytogenes, Bacillus subtilis, Escherichia coli, Yersinia enterocolitica, Pseudomonas aeruginosa and Candida albicans, further for the two oils of shows promising activity against all strains.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2020, 29, 4; 544-556
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eucalyptus citriodora leaf extract as a source of allelochemicals for weed control in pea fields compared with some chemical herbicides
Autorzy:
El-Metwally, M.
El-Rokiek, K.G.
Powiązania:
https://bibliotekanauki.pl/articles/2084629.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
allelopathy
Eucalyptus citriodora
herbicides
leaf extract
Pisum sativum
weeds
Opis:
Two field experiments were established at the Agricultural Experimental Station of the National Research Centre at Nubaria, Beheira Governorate, Egypt to study the herbicidal potential of the leaf extract of Eucalyptus citriodora at 5, 10, 15, 20 and 25% compared to two hand hoeing, unweeded treatments and the chemical herbicides Bentazon + Clethodium, Bentazon + Fluazifop-P-butyl and Butralin on pea plants and associated weeds. The results indicated that two hand hoeing achieved the maximum weed depression as expressed by the dry matter of total weeds. The dry matter of total weeds decreased by 95.08 to 94.77% as compared with unweeded treatment 50 and 70 days after sowing (DAS) followed by Butraline (93.93–94.65%), Bentazon + Clethodium (93.26–94.07%), Bentazon + Fluazifop- -P-butyl (91.82–92.77%) and leaf extract of Eucalyptus at 25% (91.61–91.95%). Furthermore, the reduction in weed development was accompanied by enhanced pea growth and yield. The results revealed that two hand hoeing was the best treatment to increase plant height, shoot dry weight and SPAD value at 50 and 70 DAS. Also, two hand hoeing produced the maximum values of pod length and number of seeds/pod. The results also indicated that Bentazon + Clethodium treatment gave observable values [recorded 72.96% in pod yield (ton ⋅ fed.–1) over that of unweeded control] of number of pod/plant, weight of pod/plant, seed yield/fed and protein percentage. Also, the results revealed great increases in the growth of pea as well as yield due to treatment with E. citriodora dry leaf extract at 25%. [recorded 64.8% in in pod yield (ton ⋅ fed.–1) over that of unweeded control]. So, the results indicated using Bentazon + Clethodium as well as E. citriodora dry leaf extract at 25% to control weeds associated with pea plants. The authors suggested application of E. citriodora dry leaf extract at 25% in controlling weeds associated with pea plants as a safe method that avoids environmental contamination.
Źródło:
Journal of Plant Protection Research; 2019, 59, 3; 392-399
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating forest biomass by remote sensing RADAR data in Brazil
Autorzy:
Santos, J.R.
Gama, F.F.
da Conceicao Bispo, P.
Powiązania:
https://bibliotekanauki.pl/articles/52438.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
forest biomass
biomass modelling
forest inventory
tropical forest
remote sensing
eucalyptus tree
stand
RADAR data
Brazil
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2014, 57, 192
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
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