Investigation of pH varied anthocyanin pigment profiles of Agapanthus praecox and its potential as natural colourant
Anthocyanin pigment profiles, colours and pH values of Agapanthus praecox were investigated. The anthocyanin pigments from the blue flower petals were solvent extracted with 70 acetone, and the pH of the extracts was varied (pH 1, 2.5, 4.5 and 7). The colour of the pigment solution changed with pH,...
| Main Authors: | , , , , |
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| Format: | Article |
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2011
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| Subjects: |