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Successive entrapping of red and yellow quinoid chalcones from aqueous extracts of dyer's saffron florets: a newly established and practically approved technique

1989; Springer Science+Business Media; Volume: 189; Issue: 5 Linguagem: Inglês

10.1007/bf01028314

0044-3026

Koshi Saito, Yasuhiro Matsuhisa, Akira Naruse, Tsutomu Kanehira,

melanin and skin pigmentation

A setup for successive entrapping of red and yellow quinoid chalcone pigments was assembled. The device consists of four parts: a unit for the extraction of the pigments, a unit for their transfer to the column, a unit for entrapping the columns and a unit for releasing the trapped substances. The device enables us to extract the naturally occurring oxygen-labile, pH-sensitive and UV-fragile pigments on an economically approved scale.