Quality Assessment of Japanese Knotweed (Fallopia japonica) Grown on Prince Edward Island as a Source of Resveratrol

Japanese knotweed (Fallopia japonica, also known as Polygonum cuspidatum) is a common invasive plant species on Prince Edward Island (PEI), Canada, whereas it has been used in Chinese medicine and more recently as a raw material for extracting resveratrol. This paper reports on the quantification of...

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Bibliographic Details
Published in:	Journal of agricultural and food chemistry Vol. 61; no. 26; pp. 6383 - 6392
Main Authors:	Chen, Huaguo, Tuck, Tina, Ji, Xiuhong, Zhou, Xin, Kelly, Glen, Cuerrier, Alain, Zhang, Junzeng
Format:	Journal Article
Language:	English
Published:	Washington, DC American Chemical Society 03-07-2013
Subjects:	Antioxidants - analysis Antioxidants - isolation & purification Antioxidants - metabolism Biological and medical sciences emodin Emodin - analogs & derivatives Emodin - analysis Emodin - isolation & purification Emodin - metabolism Fallopia japonica Fallopia japonica - chemistry Fallopia japonica - growth & development Fallopia japonica - metabolism Food industries Fundamental and applied biological sciences. Psychology Glucosides - analysis Glucosides - biosynthesis Glucosides - isolation & purification harvesting invasive species leaves liquid chromatography medicine Plant Leaves - chemistry Plant Leaves - growth & development Plant Roots - chemistry Plant Roots - growth & development Plant Stems - chemistry Plant Stems - growth & development Plant Weeds - chemistry Plant Weeds - growth & development Plant Weeds - metabolism Prince Edward Island Quality Control raw materials resveratrol roots stems Stilbenes - analysis Stilbenes - isolation & purification Stilbenes - metabolism China British Columbia Prince Edward Island Prince Edward Islands Antarctic Islands Japanese knotweed Fallopia japonica UPLC resveratrol quality assessment Quality Resveratrol
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Summary:	Japanese knotweed (Fallopia japonica, also known as Polygonum cuspidatum) is a common invasive plant species on Prince Edward Island (PEI), Canada, whereas it has been used in Chinese medicine and more recently as a raw material for extracting resveratrol. This paper reports on the quantification of resveratrol, polydatin, emodin, and physcion in roots, stems, and leaves of Japanese knotweed samples from PEI and British Columbia (BC), Canada, and nine provinces of China, by ultraperformance liquid chromatography (UPLC). The results showed that the root contains a much higher level of resveratrol than the stem and leaf, and it is accumulated in its highest level in October. PEI-grown knotweed contains similar levels of resveratrol and polydatin compared to Chinese samples collected in the month of October, but the contents of the other anthraquinones (emodin and physcion) are different. As such, Japanese knotweed grown in PEI could be a commercially viable source of raw material for resveratrol production; however, caution has to be taken in harvesting the right plant species.
Bibliography:	http://dx.doi.org/10.1021/jf4019239 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0021-8561 1520-5118
DOI:	10.1021/jf4019239