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1

Podbial pospolity [Tussilago farfara L.]

100%
Bonenberg K.
Aura
|
2001
|
nr 07 Ziola a Zdrowie nr 46
4
2

The flowering biology and apicultural value of coltsfoot [Tussilago farfara L.f. Asteraceae]

100%
Warakomska Z., Kolasa Z.
Annales Universitatis Mariae Curie-Sklodowska. Sectio C, Biologia
|
2003
|
tom 58
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Content of pyrrolizidine alkaloids in the leaves of coltsfoot (Tussilago farfara L.) in Poland

86%
Adamczak A., Opala B., Gryszczynska A., Buchwald W.
Acta Societatis Botanicorum Poloniae
|
2013
|
tom 82
|
nr 4
Coltsfoot (Tussilago farfara L.) is a common species, widely used in European and Chinese traditional medicine for the treatment of respiratory diseases. However, raw material from this plant contains hepatotoxic pyrrolizidine alkaloids (PAs). The aim of the study was to determine the variability of the level of PAs (senkirkine and senecionine) in leaves of coltsfoot originated from natural populations in Poland. In the phytochemical analysis, 20 samples of T. farfara were used. This plant material was obtained from the Garden of Medicinal Plants in Plewiska near Poznań and originated from different regions of Poland. Coltsfoot leaves were harvested in the middle of July of 2010 and then dried at room temperature. The alkaloid content was detected using the HPLC-DAD method. The amount of PAs in leaves of T. farfara changed in a wide range from 0.06 to 1.04 μg g−1 of dry matter (DM). The content of senkirkine and senecionine was positively correlated (r = 0.68, P = 0.001). There was no statistically significant correlation between the amount of PAs as well as leaf weight and water content in leaves of T. farfara. Our results showed that a medium-sized leaf of coltsfoot (0.33 g DM) may contain from 0.02 to 0.34 μg of PAs (on average 0.14 μg). The level of PAs was not associated with the region of Poland, but phytochemical similarity of samples was usually visible at the local scale. Coltsfoot leaves are characterized by a high variability of the content of toxic PAs, much higher than in the case of the main active compounds, especially flavonoids and mucilage. This phytochemical variability is mainly genetically determined (samples came from a garden collection), and it can be increased by environmental factors. Our investigations indicate that Polish natural populations of T. farfara may provide raw material with a low level of toxic PAs.
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Content of pyrrolizidine alkaloids (senecionine and senkirkine) in Tussilago farfara L. plants cultivated in vitro

86%
Dreger M., Krajewska-Patan A., Gorska-Paukszta M., Pieszak M., Opala B., Gryszczynska A., Adamczak A., Mikolajczak P. M., Buchwald W.
Herba Polonica
|
2012
|
tom 58
|
nr 4
Tussilago farfara L. (family Asteraceae) is a valuable medicinal plant that has been used as a cough suppressant and as an antibacterial and anti-inflammatory drug. Mucopolysac charides, flavonoids, sterols, phenolic acids and pyrrolizidine alkaloids (PAs) are the main active compounds of coltsfoot. Due to hepatotoxic properties of some pyrrolizidine alkaloids, raw materials that contain PAs should be monitored and determined. The aim of present work was to establish nodal cultures of Tussilago farfara and to determine the content of senecionine and senkirkine in plants propagated in in vitro conditions. Eleven clones of coltsfoot derived from Polish natural populations were established. Rhizome buds were used as explants for the initiation of in vitro cultures on MS (Murashige and Skooge) medium. Every six weeks the shots and leaves were collected and dried. The HPLC method was applied for the identification and determination of senecionine and senkirkine. Content of pyrrolizidine alkaloids varied significantly depending on origin (population). An average sum of alkaloids (senecionine and senkirkine) ranged from 1.23 to 10.47 mg/100g d.w. that corresponds to 0.0013–0.011%, respectively.
5

Podbial pospolity

86%
Ciarka D., Gawronski S. W.
Działkowiec
|
1998
|
nr 11
61
6

Podbial pospolity - ceniony surowiec sluzowy

81%
Mazur M.
Wiadomości Zielarskie
|
2002
|
tom 44
|
nr 02
8-9
7
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Phytochemical variability of coltsfoot (Tussilago farfara L.) in Poland

72%
Adamczak A., Buchwald W., Gryszczynska A.
Herba Polonica
|
2012
|
tom 58
|
nr 4
Coltsfoot leaves are a traditional raw material, rich in polysaccharides and phenolics. The variability of the contents of these main compounds was determined, using plant material originated from 22 natural populations of Tussilago farfara L. growing in various regions of Poland. In the years 2008–2009, plants from each investigated population were collected in the Garden of Medicinal Plants in Plewiska near Poznań (Poland). Coltsfoot leaves were harvested in the middle of June and July of 2010, and then dried at room temperature. In these raw material we quantified swelling index (describing mucilage content) and spectrophotometrically: the amounts of total polyphenols, polyphenols unadsorbed on hide powder (non-tannin phenolics) and tannins (expressed as pyrogallol equivalent) as well as the sum of hydroxycinnamic acid derivatives (expressed as rosmarinic acid) and flavonoids (expressed as quercetin). The demonstrated results show the relatively high and balanced contents of the basic active compounds, especially flavonoids (0.7–1.3%) and polysaccharides (swelling index: 8.0–14.5). In addition, it was found that flavonoids and mucilage in coltsfoot leaves fluctuate in only a small range (V=11–13%), regardless of overshadow and the harvest time of raw material.
8

Expansion of Tussilago farfara L. in disturbed environments. II. Population reaction to simulated cultivation

72%
Namura-Ochalska A.
Acta Societatis Botanicorum Poloniae
|
1993
|
tom 62
|
nr 1-2
83-89
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Phenolics in the Tussilago farfara leaves

72%
Chanaj-Kaczmarek J., Wojcinska M., Matlawska I.
Herba Polonica
|
2013
|
tom 59
|
nr 1
Coltsfoot leaves (Farfarae folium) are used in the European medicine in respiratory tract diseases, for cough, bronchitis and asthmatic disorders, while in the traditional Chinese medicine only flower buds (Farfarae flos) have been recognized as a medicine. A short literature review shows that most data concern the chemical composition of the coltsfoot flowers. During the carried out studies we have isolated and identified (UV, 1H and 13C NMR, analysis of acid and enzymatic hydrolyze products) six known flavonols from the coltsfoot leaves: kaempferol and its 3-O-β-glucopyranoside and 3-O-α-rhamnopyranosyl(1→6)- β-glucopyranoside, along with quercetin derivatives: 3-O-β-arabinopyranoside, 3-O-β- glucopyranoside and 3-O-α-rhamnopyranosyl(1→6)-β-glucopyranoside. Moreover, we have detected the presence of three phenolic acids.
10

Expansion of Tussilago farfara L. in disturbed environments. I. Population renewal under conditions of plant cover destruction

72%
Namura-Ochalska A.
Acta Societatis Botanicorum Poloniae
|
1993
|
tom 62
|
nr 1-2
75-81
11

Safety science - quality improvement of Tussilago farfara via biotechnology

72%
Kopp B., Wawrosch C.
Herba Polonica
|
2007
|
tom 53
|
nr 2
12

Rosliny kwitnace wczesna wiosna

58%
Flis E.
Pszczelarz Polski
|
1995
|
tom 06
|
nr 1
12
13

Pierwsze rośliny pożytkowe

58%
Grobelny P.
Pasieka
|
2014
|
nr 1
14

Expansion of Tussilago farfara L. in disturbed environments. III. Successful colonization and the properties of individuals

58%
Namura-Ochalska A.
Acta Societatis Botanicorum Poloniae
|
1993
|
tom 62
|
nr 1-2
91-99
15

Uwagi o wschodach nasion (owoców) niektórych roślin leczniczych

58%
Kozlowski J.
Wiadomości Botaniczne
|
1959
|
tom 3
|
nr 2
16

Pierwsza pomoc ogrodnicza

58%
Marcinkowski J., Pronczuk M., Narkiewicz M.
Ogrody, Ogródki, Zieleńce
|
2012
|
nr 04
17

Ziola wiosenna pora

58%
Kielkowska M.
Kwiaty
|
2002
|
nr 1
16-17
18

Pospolity i pozyteczny

58%
Zdrowa Żywność - Zdrowy Styl Życia
|
1992
|
nr 2
14
19

Marcowe przebudzenie

51%
Krzywanska E.
Przyroda Polska
|
2003
|
nr 03
22-23
20

Warzywa lisciowe uprawiane w Chinach [cz.III]

51%
Holubowicz R., Bralewski T. W.
Hasło Ogrodnicze
|
2009
|
nr 05
144-147
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