The fraction of sterols acetates from fruits and leaves of P. coccínea have been isolated in a typical way from a petroleum ether extract. Besides, by means of the weight method the total amounts of sterols were determined in fruits and leaves (148.2 mg and 75.36 mg per 100 g, respectively), ß-sitosterol, cholesterol, stigmasterol and campesteryl were identified in both fractions by GC, GC/MS and TLC techniques, ß-sitosterol was the predominant sterol component in analysed raw materials obtained from P. coccínea.
PL
Z ekstraktu eteru naftowego z owoców i liści P. coccínea wyodrębniono w ogólnie przyjęty sposób frakcję octanów steroli. Metodą wagową określono całkowitą ilość steroli w owocach (148,2 mg) i w liściach (75,36 mg) na 100 g surowca. Na podstawie wyników kapilarnej chromatografii cieczowej, CC/MS i TLC w obu badanych frakcjach stwierdzono występowanie ß-sitosterolu, cholesterolu, stigmasterolu i kampesterylu. ß-sitosterol byt związkiem dominującym w analizowanych surowcach z P. coccíneo.
Acidification and buffer capacity of bark in five deciduous Mediterranean plants were analyzed. The material originated from six stands with different levels of hovered dust, chiefly cement particles; its pH values were in general higher as compared with some other areas in Europe and Croatia. Quantitative data indicate a tendency of acidity to decrease in stands polluted with more than 200 µg/cm3 of hovered dust. Buffer capacities as a rule were higher against alkali and in particular species were ranging contrary to the range of ph values. The results are interpreted in favour of alkaline atmosphere influence.
Winter garden, covered with snow, is as beautiful as autumn or spring garden. One should only take a look to appreciate it. The author focuses on colourful fruit of trees and shrubs, such as the firethorn, cotonoeaster, barberry, as well as the witch hazel and winter blooming hellebore, and the colourful shoots of cornels. A garden in its winter cloak is quite unique although different than that in other seasons.
PL
Ogród zimowy, zasypany śniegiem, jest równie piękny jak jesienią czy na wiosnę. Trzeba to tylko zauważyć. Autorka zwraca uwagę na barwne owoce drzew i krzewów - jak ogniki, irgi i berberysy, kwitnące w zimie oczary i ciemierniki, a także barwne pędy krzewów derenia. Ogród w zimowej szacie jest niezwykły, choć zupełnie inny niż w pozostałych porach roku.