Taxol content in the bark of Himalayan Yew in relation to tree age and sex.

Abstract:

:Taxol content in the bark of Taxus baccata trees growing in a homogenous (uniform) environment at Jageshwar, District Almora in Central Himalaya has been quantified. The average taxol concentration in the bark of sampled trees was 0.0558+/-0.008% (of dry wt.) and was about 64% higher for male plants (averaged across tree age) in comparison to female trees. Maximum taxol content was recorded in the bark samples collected from trees of >110 yrs age. ANOVA indicates a significant difference in the taxol content of bark from trees of different ages, however, differences were not significant between sexes. Taxol was quantified by HPLC using a standard curve prepared with authentic taxol; the identification of bark taxol was confirmed by UV and mass spectrometry. The total taxol content of the bark of Taxus trees across an age series was found to range between 0.064 to 8.032 g/tree, and a tree of about 100 yrs age can yield 5.74 kg dry bark.

journal_name

Phytochemistry

journal_title

Phytochemistry

authors

Nadeem M,Rikhari HC,Kumar A,Palni LM,Nandi SK

doi

10.1016/s0031-9422(02)00115-2

subject

Has Abstract

pub_date

2002-07-01 00:00:00

pages

627-31

issue

6

eissn

0031-9422

issn

1873-3700

pii

S0031942202001152

journal_volume

60

pub_type

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