Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Phenolic" wg kryterium: Wszystkie pola

  Lista filtrów

Dostawca treści

Wyrównaj
Wyświetlanie 1-10 z 319
Tytuł:
Free and bound phenolic acids in inflorescences and rhizomes with roots of Hieracium pilosella L. [Asteraceae]
Autorzy:
Gawronska-Grzywacz, M
Krzaczek, T.
Powiązania:
https://bibliotekanauki.pl/articles/58360.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
free phenolic acid
bound phenolic acid
phenolic acid
inflorescence
rhizome
root
Hieracium pilosella
Compositae
Opis:
The analysis of the fractions of free and bound, liberated by hydrolysis, phenolic acids in the inflorescences and rhizomes with roots of Hieracium pilosella L. was conducted by 2D-TLC and RP-HPLC methods. In the inflorescences fourteen phenolic acids were found: chlorogenic, gallic, protocatechuic, homoprotocatechuic, caffeic, gentisic, p-hydroxyphenylacetic, p-hydroxybenzoic, m-hydroxybenzoic, p-coumaric, syringic, vanillic, ferulic and salicylic. In the rhizomes with roots nine phenolic acids were identified: chlorogenic, gallic, homoprotocatechuic, caffeic, gentisic, p- hydroxyphenylacetic, p-hydroxybenzoic, syringic and vanillic. By means of the RP-HPLC method the contents of major acids were estimated which ranged from 0.01 mg% up to 139.50 mg%. Caffeic acid is the remarkably dominating constituent of both plant materials. Phenolic compounds may contribute to invasiveness and medicinal properties of this species.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 215-218
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of fluridone on accumulation of carotenoids, flavonoids and phenolic acids in ripening tomato fruit
Autorzy:
Wiczkowski, W.
Góraj-Koniarska, J.
Saniewski, M.
Horbowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/12689671.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
tomato
Lycopersicon esculentum
fruit ripening
carotenoid
flavonoids
phenolic composition
phenolic acid
fluridone
Opis:
We examined the response of maturing tomato fruit exposed for 7 days to fluridone (1-methyl-3-phenyl-5-[3-trifluoromethyl(phenyl)]-4(1H)-pyridinone). Fluridone was applied in lanolin paste in the form of a 2–3 mm wide strip from the top to the base of the fruit. As a control, a similar stripe of lanolin was applied in the same way on the opposite side of the same fruit. The content of major carotenoids, as well as flavonoids, and free and bound phenolic acids were determined using a HPLC and HPLC-MS-MS methods. Fluridone almost completely blocked the biosynthesis of lycopene and substantial declined content of ß-carotene and lutein in the tomato fruit. The fluridone caused a decreased content of quercetin, rutin and naringenin, and increased level of epicatechin. The herbicide did not affect the content of p-coumaric acid, but reduced the level of caffeic acid, both free and ester form, and declined the content of free ferulic and chlorogenic acids. Changes in phenolics composition observed for the first time indicate that fluridone interferes with the biosynthesis of further products of the metabolism of p-coumaric acid, both flavonoids and phenolic acids.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 6; 39-46
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rye (Secale Cereale L.) Phenolic Compounds as Health-related Factors
Autorzy:
Dynkowska, Wioletta M.
Powiązania:
https://bibliotekanauki.pl/articles/2199731.pdf
Data publikacji:
2019-12-30
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
(Secale cereale L)
Rye
phenolic compounds
antioxidant activity
health potential
rye bread
Opis:
The diversity of phenolic compounds found in rye grain makes this cereal the valuable source of these substances in everyday food. Simple phenolic compounds, as well as their metabolites, show a pro-health effect. Phenolic acids and ferulic acid dehydrodimers are included in the group of cereal antioxidants. The antioxidant activity of phenolic compounds is an essential factor in the prevention of cancer and cardiovascular diseases.
Źródło:
Plant Breeding and Seed Science; 2019, 79; 9-24
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wybranych fenolokwasów na szczepy grzybów pleśniowych
The effect of selected phenolic acids strains of fungi
Autorzy:
Dec, D.
Powiązania:
https://bibliotekanauki.pl/articles/228044.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
związki fenolowe
Aspergillus
działanie przeciwgrzybicze
phenolic compounds
antifungal
Opis:
Celem badań zaprezentowanych w artykule była ocena działania substancji fenolowych występujących powszechnie w roślinach na wybrane szczepy grzybów pleśniowych z punktu widzenia poznawczego oraz ewentualnego zastosowania w praktyce w przemyśle spożywczym. Materiałem badawczym były szczepy Aspergillusa, na których sprawdzano wpływ wybranych fenolokwasów.
The aim of this study was to evaluate the effect of phenolic substances commonly found in plants selected strains of fungi from the point of view of the cognitive and the possible practical application in the food industry. The research material were strains of Aspergillus, which tested the effect of some phenolic acids.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2016, 2; 80-82
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of abiotic stress during soybean germination followed by recovery on the phenolic compounds of radicles and their antioxidant capacity
Autorzy:
Swigonska, S.
Amarowicz, R.
Krol, A.
Mostek, A.
Badowiec, A.
Weidner, S.
Powiązania:
https://bibliotekanauki.pl/articles/57387.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
abiotic stress
environmental stress
soybean
germination
phenolic compound
phenolic acid
isoflavone
antioxidant capacity
Opis:
Abiotic stress factors are among the major causes of lower crop yields. It is known, that in response to cold and/or osmotic stress, crops activate various defense mechanisms, including morphological, physiological and metabolic adaptations. Secondary metabolism, especially phenolic compounds, seem to be an important factor of stress-induced metabolic re-engineering as their levels are alternated by abiotic stress in plants. Despite the fact, that the nature and function of phenolic compounds was already studied in various plant species, it is important to define tissue-specific changes induced by two most potent abiotic stressors – low temperature and decreased water potential. Moreover, in fields, the appearance of single stress is rather rare. Usually two or more factors are acting in parallel, which may potentially result in different effects. Therefore, the aim of this study was to analyze selected elements of secondary metabolism in roots of germinating soybean seeds under cold stress, osmotic stress and both stresses combined. In addition the effects of constant and persistent stress were compared to those induced by sudden and brief stress appearance, as well as after the post-stress recovery process. In the presented study standard methods for identification and quantification of phenolic acids and isoflavones were used and the antioxidant capacity of the radicle extracts was measured. The phenolic metabolism in plants was greatly intensified in response to cold and osmotic stress and remained at high level during the post-stress recovery. The amount and composition of both phenolic acids and identified isoflavones also changed in stress- and duration-dependent manner. This proves an important role of phenolic compounds in abiotic stress response of germinating soybean seeds and opens up new perspectives for further investigations.
Źródło:
Acta Societatis Botanicorum Poloniae; 2014, 83, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of Natural Phenolic Compound Contained Alkaline Phenolic Foundry Resin and Its Performance Evaluation on Casting
Autorzy:
Güvendik, A. E.
Ay, Kadir
Powiązania:
https://bibliotekanauki.pl/articles/1837733.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phenolic resins
lignosulphonates
sustainability
foundry
Alfanol A 72
No-bake
performance evaluation
żywice fenolowe
lignosulfoniany
zrównoważony rozwój
ocena wydajności
Opis:
In foundry, metal casting can be done with various methods. One of the most important methods preferred around the world is sand casting. Ester curable alkaline phenolic resins have produced to make sand molds by No-bake systems. They must have specific properties to make sand casting efficient and reliable. Production of these resins depends on some fossil raw-materials like phenol. To investigate more sustainable and green resin synthesis method, lots experiment have been done by substitution of phenol with renewable alternative phenolic materials like resorcinol, lignosulphonates and tannic acid and its derivatives. Different properties of resins were produced with competitive performance with the market product, ÇKE Alfanol A 72 No-Bake Resin. Without loss of performance, calcium lignosulfonate was used in polymer synthesis at the rate of 15% instead of phenol. On the other hand, the reaction in which lignin and resorcinol were combined instead of phenol by reducing it by 25% gave better results in terms of mechanical and thermal properties. Thermal properties were investigated for resorcinol and lignin modified resins by using TGA-DSC and mechanical performance of cured sand core sample were tested by Simpson Sand Strength Testing Machine as compression strength as N/cm2. After laboratory testing casting performance of new resins are compared with two different companies’ resins in steal casting demo. Experimental results were matched with casting trail and no defect was detected.
Źródło:
Archives of Foundry Engineering; 2021, 21, 2; 46-56
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of plant mulches on the content of phenolic compounds in soil and primary weed infestation of maize
Wpływ mulczów na zawartość związków fenolowych w glebie i zachwaszczenie pierwotne kukurydzy
Autorzy:
Stoklosa, A.
Hura, T.
Stupnicka-Rodzynkiewicz, E.
Dabkowska, T.
Lepiarczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/27230.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
plant mulch
phenolic compound
phenolic compound content
soil
primary weed infestation
maize
phenolic acid
Opis:
In growing maize, an increase in the content of phenolic compounds and selected phenolic acids in soil was found after the incorporation of white mustard, buckwheat, spring barley, oats and rye mulches into the soil. The highest content of phenolic compounds in soil was found after oats mulch incorporation (20% more than in the control soil). The highest content of selected phenolic acids was found for the soil with the oats and rye mulch. Among the phenolic acids investigated, ferulic acid was most commonly found in the soil with the plant mulches. However, two phenolic acids: the protocatechuic and chlorogenic acid, were not detected in any soil samples (neither in the control soil nor in the mulched soil). At the same time, a decrease in the primary weed infestation level in maize was found in the plots with all the applied plant mulches, especially on the plots with oats, barley and mustard. The plant mulches were more inhibitory against monocotyledonous weeds than dicotyledonous ones. During high precipitation events and wet weather, a rapid decrease in the content of phenolic compounds in soil and an increase in the primary weed infestation level in maize were observed.
W uprawie kukurydzy stwierdzono wzrost zawartości związków fenolowych i wybranych kwasów fenolowych w glebie po wprowadzeniu do niej mulczu z: gorczycy białej, gryki, jęczmienia jarego, owsa i żyta. Najwyższą zawartość związków fenolowych stwierdzono w glebie z mulczem z owsa (o 20% więcej, niż w glebie kontrolnej). Najwyższą zawartość wybranych kwasów fenolowych stwierdzono w glebie z mulczami z owsa i żyta. W glebie z mulczami najczęściej stwierdzano kwas ferulowy. Jednocześnie w żadnej glebie (kontrolnej i z mulczami) nie stwierdzono występowania kwasów fenolowych: protokatechowego i chlorogenowego. Równocześnie na tych samych poletkach z mulczami stwierdzono zmniejszenie zachwaszczenia pierwotnego kukurydzy, wyraźne zwłaszcza z mulczem z owsa, jęczmienia jarego i gorczycy białej. Zastosowane mulcze bardziej ograniczały wzrost chwastów jednoliściennych. Wyraźne zmniejszenie ilości związków fenolowych w glebie oraz zwiększenie zachwaszczenia pierwotnego kukurydzy obserwowano w okresie zwiększania ilości opadów i wilgotnej pogody.
Źródło:
Acta Agrobotanica; 2008, 61, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the phenolic contents and antibacterial activity of different concentrations of Onosma chlorotricum Boiss
Autorzy:
Dousti, B.
Nabipor, F.
Powiązania:
https://bibliotekanauki.pl/articles/2096818.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phenolic compounds
flavonoids
antibacterial activity
Onosma chlorotricum
Opis:
Because of side effects and increasing resistance to antibiotics, considerable attention hasbeen given to extract sand biologically active compounds isolated from medicinal plants. In the present study, phytochemical screening and antibacterial activities of different concentrations of various extracts of Onosma chlorotricum were evaluated and compared with those of vancomycin and amikacin. Total phenolic and flavonoid contents and the antibacterial activity of methanol, n-hexane, and aqueous extracts (5 mg/ml to 0.156 mg/ml final concentration) of O. chlorotricum against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli were evaluated using disc diffusion and microdilution methods. Total phenolic and flavonoid contents were determined according to the Folin-Ciocalteu and aluminum chloride colorimetric assays, respectively. The results showed that the total phenolic and flavonoid contents of these extracts ranged from 56.10 ± 0.13 to 74.12 ± 0.05 mg GAE/g dry extract and from 19.3 ± 0.6 to 23.20 ± 0.41 mg QE/g dry extract, respectively. The methanol extract with the highest phenolic and flavonoid content showed the highest antibacterial activity against all the tested bacterial strains, with the highest inhibition zone of 21 ± 0.7 mm and the lowest MIC and MBC values of 78.12 μg/ml for S. aureus. The antibacterial effects and the total phenolic content of O. chlorotricum were remarkable. The results suggest that the effects of methanol extract on wound healing could be tested in an animal model.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 4; 377-386
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of modification of phenolic resin with sodium oxalate and ethylene glycol on properties of particleboards
Autorzy:
Mirski, R.
Zawada, L.
Powiązania:
https://bibliotekanauki.pl/articles/30019.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
modification
phenolic resin
sodium oxalate
ethylene glycol
property
particle board
Opis:
The study investigated the effect of the modification of phenolic resin with sodium oxalate and ethylene glycol on properties of particleboards. It results from the conducted tests that the simultaneous introduction of ethylene glycol and sodium oxalate to PF resin, irrespective of the amounts of modifiers, results in a slight increase in bend- ing strength and modulus of elasticity of particleboards. However, a strong decrease was observed in internal bond after the boiling test. Observed changes in properties of par- ticleboards, occurring under the influence of the applied modification, undermine the applicability of such a modification.
Źródło:
Folia Forestalia Polonica. Series B - Drzewnictwo; 2011, 42
0071-6685
Pojawia się w:
Folia Forestalia Polonica. Series B - Drzewnictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synergistic antibacterial effect of phenolic acids against Escherichia coli
Synergistyczne działanie przeciwbakteryjne kwasów fenolowych przeciwko Escherichia coli
Autorzy:
Synowiec, A.
Żyła, K.
Gniewosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/13925559.pdf
Data publikacji:
2019
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
synergy
antibacterial effect
phenolic acid
Escherichia coli
biofilm
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2019, 598; 51-62
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 319

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies