8 ফলাফল
The plant Polygonum tinctorium produces the secondary metabolite indican (indoxyl-β-D-glucoside), a precursor of the blue dye indigo. P. tinctorium synthesizes indican through the actions of the UDP-glucosyltransferase (UGT), indican synthase. Herein, we partially purified an indican synthase from
Persicaria tinctoria (Polygonum tinctorium) synthesizes indican (indoxyl-β-D-glucoside) as a specialized metabolite. Indican is synthesized in the cytosol of leaf cells from indoxyl and UDP-glucose by the catalysis of indoxyl-β-D-glucoside synthase (PtIGS), then transported into vacuoles. As a
Polygonum tinctorium Ait. is a herbaceous subtropical annual plant, belonging to the family Polygonaceae. Within the cells of its leaves P. tinctorium accumulates large amounts of a colorless glycoside, indican (indoxyl beta-d-glucoside), from which the blue dye indigo is synthesized. P. tinctorium
A method to quantify the indigo precursor indican (indoxyl-beta-D-glucoside) in Polygonum tinctorium L. has been developed. Plant material was extracted in deionized water, and indican was identified and quantified using high performance liquid chromatography (HPLC) coupled to an evaporative light
In this article, a HPLC method to identify and quantify the dyes and the indigo precursors produced in Polygonum tinctorium is described. Using this technique, indican has been positively identified in extracts of P. tinctorium. Our work with two cultivars of P. tinctorium has confirmed that the
Analysis of extracts from two woad species (Isatis tinctoria and Isatis indigotica) and Polygonum tinctorium revealed that only one indigo precursor (indican) was present in Polygonum, but two precursors were found in Isatis spp. This was done using high performance liquid chromatography (HPLC),
Indigo is the most important blue component in the class of natural dyes for cellulose and protein fibres. In the moderate European climate Polygonum tinctorium Ait. could be an interesting source for natural indigo (Vat blue 1). Following a cultivation of the plant material a simple procedure for