کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2539194 | 1122167 | 2010 | 4 صفحه PDF | دانلود رایگان |
Seasonal variations in biomass and alkaloid contents of goldenseal (Hydrastis canadensis) were investigated. Five-year-old plants gave 5× the yield of roots and rhizomes of two-year-old plants, and summer growth gave significant increases in root biomass but not rhizomes. Berberine contents of roots plus rhizomes did not vary significantly and were > 3.4% in all samples. Hydrastine contents of 5 y roots plus rhizomes showed significant seasonal variation. These variations were due to significant changes in the hydrastine contents of the roots (1.3–1.9%), but not the rhizomes (2.2–2.8%). Goldenseal leaves plus stems had lower contents of hydrastine (0.4–0.8%) and berberine (1.0–1.5%).
Berberine contents of goldenseal (roots plus rhizomes) did not vary significantly and were > 3.4% in all samples. Hydrastine contents were higher in early summer than in autumn.Figure optionsDownload as PowerPoint slide
Journal: Fitoterapia - Volume 81, Issue 7, October 2010, Pages 925–928