Natural anthocyanin pigments

Anthocyanin pigments in strawberry

The anthocyanin composition was analysed in strawberry fruits from five different cultivars (cv. Eris, Oso Grande, Carisma, Tudnew and Camarosa). Twenty-five defined anthocyanin pigments were detected, most of them containing Pelargonidin (Pg) as aglycone; some cyanidin (Cy) derivatives were also found. Glucose and rutinose were the usual substituting sugars, although arabinose and rhamnose tat...

Anthocyanin Pigments of Buckwheat Hypocotyls

Anthocyanin Pigments of Siahe Sardasht Grapes

The anthocyanins of Siahe Sardasht variety (Vitis vinifera L. var. S.S.) were extracted from freezed samples and were purified by adsorption on cation-exchange resin column. Individual pigments were separated by TLC on cellulose plates. Monomeric anthocyanin content that was determined by pH-differential, was 1740.11±3.58 mgL?1 (based on malvidin 3-glucose). Five major pigments were identified ...

Anthocyanin Pigments: Comparison of Extract Stability

Stabilities of anthocyanins from Concord grapes, red cabbage, tradescantia and ajuga were studied. RP-HPLC analysis was used to characterize individual anthocyanins and spectrophotometric analysis for all pigments. Anthocyanins from tradescantia were much more stable than the other extracts. Such increased stability was attributed to its intrinsic nature.

65 Cacao Polyphenolic Substances 4 . THE ANTHOCYANIN PIGMENTS

The purple colouring matter of cacao cotyledons has been shown to consist oftwo cyanidin glycosides (Forsyth, 1952). In that study the pigments were obtained only as amorphous powders, now known to have been grossly contaminated with colourless glucosides. The anthocyanin which moves the faster on chromatography was incorrectly considered to contain both glucose and arabinose, and the slower an...