Distribution and concentration of total phenolics, condensed tannins, and nordihydroguaiaretic acid (NDGA) in creosotebush ( Larrea tridentata)

This paper focuses on the presence and distribution of secondary phenolic compounds found within creosotebush [ Larrea tridentata (Sess. & Moc. ex DC.) Cov.]. Total phenolics, condensed tannins and nordihydroguaiaretic acid (NDGA) were measured in nine categories of tissue within creosotebush. T...

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Bibliographic Details
Published in:Biochemical systematics and ecology 2002-11, Vol.30 (10), p.905-912
Main Authors: Hyder, Paul W, Fredrickson, E.L, Estell, Rick E, Tellez, Mario, Gibbens, Robert P
Format: Article
Language:English
Subjects:
Allelopathy
colorimetry
flowers
grasslands
high performance liquid chromatography
Larrea tridentata
leaves
nordihydroguaiaretic acid
physicochemical properties
proanthocyanidins
roots
Secondary compounds
seeds
shrubs
stems
tissues
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Summary:This paper focuses on the presence and distribution of secondary phenolic compounds found within creosotebush [ Larrea tridentata (Sess. & Moc. ex DC.) Cov.]. Total phenolics, condensed tannins and nordihydroguaiaretic acid (NDGA) were measured in nine categories of tissue within creosotebush. Total phenolic and condensed tannin concentrations were determined using colorimetric methods while NDGA content was determined with high performance liquid chromatography (HPLC). Phenolics were present throughout the plant with the highest concentrations in leaves (36.2 mg/g), green stems (40.8 mg/g) and roots (mean for all root categories=28.6 mg/g). Condensed tannins were found in all tissues with highest concentrations in flowers (1.7 mg/g), seeds (1.1 mg/g), and roots less than 5 mm in diameter (1.1 mg/g). Flowers, leaves, green stems and small woody stems (
ISSN:0305-1978
1873-2925
DOI:10.1016/S0305-1978(02)00050-9