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Definition:Strawberry leaves are majorly composed of
Chemical information disclosed as following table:
Research update:Strawberry leaves.
Qualitative and quantitative analysis of flavonoids of the strawberry tree - Arbutus unedo L. (Ericaceae).:Acta Pharm. 2006 Jun;56(2):245-50.Males Z, Plazibat M, Vunda? VB, Zuntar I.Department of Pharmaceutical Botany, Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia. zmales@pharma.hr
The leaves and fruits of strawberry tree - Arbutus unedo L., collected from two separate geographic locations in Croatia were investigated to determine their flavonoid composition and content. Quercitrin, isoquercitrin, hyperoside and rutin were identified in all leaf samples by means of thin-layer chromatography; the fruits contained only isoquercitrin. Chlorogenic acid was present in some leaf samples. The content of flavonoids depended on the plant organ investigated, date of collection and the locality. Spectrophotometric determination of the flavonoids indicated that the leaves are richer in flavonoids (0.52-2.00%) than fruits (0.10-0.29%).
In vitro antileukaemic activity of extracts from berry plant leaves against sensitive and multidrug resistant HL60 cells.:Cancer Lett. 2006 May 18;236(2):282-91. Epub 2005 Jul 20.Skupie¨½ K, Oszmia¨½ski J, Kostrzewa-Nowak D, Tarasiuk J.Department of Processing and Storage of Plant Raw Materials, Agricultural Academy of Szczecin, 17 S?owackiego st, 71-434 Szczecin, Poland.
The aim of the present study was to determine in vitro antileukaemic activity of extracts obtained from selected berry plant leaves (Fragaria x ananassa Duch. cv Elsanta, raspberry Rubus ideus L. cv Polana and blueberry Vaccinium corymbosum L. cv Bluecrop) against promyelocytic HL60 cell line and its multidrug resistant sublines exhibiting two different MDR phenotypes: HL60/VINC (overexpressing P-glycoprotein) and HL60/DOX (overexpressing MRP1 protein). It was found that the blueberry extract was the most efficient against sensitive HL60 cell line (about 2-fold more active than strawberry and raspberry extracts) but presented much lower activity towards resistant cells. In contrast, strawberry and raspberry extracts exhibited the high cytotoxic activity against sensitive leukaemia HL60 cell line as well as its MDR sublines. The values of resistance factor (RF) found for these extracts were very low lying in the range 0.32/2.0.
Isolation and purification of a 316 Da preformed compound from strawberry (Fragaria ananassa) leaves active against plant pathogens.:FEBS Lett. 1999 Oct 1;459(1):115-8. Filippone MP, Diaz Ricci J, Maman¨ª de Marchese A, Far¨ªas RN, Castagnaro A.Departamento Bioqu¨ªmica de la Nutrici¨®n, Instituto Superior de Investigaciones Biol¨®gicas (CONICET-UNT), Chacabuco 461, (4000), San Miguel de Tucum¨¢n, Argentina.
An antibiotic called fragarin showing activities against bacterial and fungal plant pathogens was isolated and purified by FPLC chromatography from the soluble fraction of strawberry leaves. The molecular weight value determined by mass spectrometry is 316 Da. Fragarin remains fully active after protease treatment or alkaline hydrolysis at 100 degrees C for 20 min. Biological and chemical analyses suggest that fragarin may be a new type of an antimicrobial preformed compound--phytoanticipin--and would constitute a primary non-specific barrier of strawberry defense.
 Scientific References:
1.Research update:Strawberry leaves.
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Claims: Information this web site presented is meant for Nutritional Benefit and as an educational starting point only, for use in maintenance and promotion good health in cooperation with a common knowledge base reference...Furthermore,it based solely on the traditional and historic use or legend of a given herb from the garden of Adonis. Although every effort has been made to ensure its accurate, please note that some info may be outdated by more recent scientific developments......
Pharmakon Warning: The order of knowledge is not the transparent order of forms and ideas,as one might be tempted retrospectively to interpret it; it is the antidote....(Dissemination,Plato's Pharmacy,II.The Ingredients:Phantasms,Festivals,and Paints;138cf. Jacques Derrida.).
And as it happens,the technique of imitation,along with the production of the simulacrum,has always been in Plato's eyes manifestly magical,thaumaturgical:......and the same things appear bent and straight to those who view them in water and out,or concave and convex,owing to similar errors of vision about colors, and there is obviously every confusion of this sort in our souls.And so scene painting (skiagraphia) in its exploitation of this weakness of four nature falls nothing short of witchcraft (thaumatopoia), and so do jugglery and many other such contrivances.(Republic X,602c-d;cf.also 607c).