Plant Coloring Matters

Yield components and nutritive value of Robinia pseudoacacia and Albizia julibrissin in Arkansas, USA

“…This nontoxic flavonoid occurs in Robinia spp. flowers (Sando 1932;Maksyutina 1972), but presence in leaves was not previously documented. Black locust biomass would not be an economical source of this valueadded antioxidant.…”

“…The nontoxic flavonoid robinin (kaempferol-3-O-robinoside-7-O-rhamnoside), a complex of isomeric forms of a triglycoside, occurs in Robinia spp. flowers (Maksyutina 1972;Sando 1932), but presence in leaves is not documented. Robinin has antioxidant properties that benefit human health, and could be a value-added flavonoid extracted prior to biofuel conversion (Lau et al 2005).…”

Verbindende Mechanismen

“…210-211 . 120 Sando (1925), S . 304: "It is the problem of the chemist to disentangle and isolate the substances whose combination is responsible for the observed phenomena . "…”

“…630: "Without some chemical knowledge of the pigments, the geneticist obviously cannot advance beyond the symbolic expression of his results . " 121 Sando (1925), S . 304: "Investigations of this kind, which have in view a chemical interpretation of Mendelian character, would be helpful in an understanding of interacting factors in heredity . "…”

“…Die Isolierung der Stoffe sei notwendig, nur schon, um sicher zu sein, dass die beobachteten Reaktionen nicht auf andere chemische Substanzen wie etwa Tannine zurückzuführen sind . 142 Flavonglucoside, so schrieb Sando (1925), S . 300, würden gemeinhin als die Chromogene der Anthocyane angesehen .…”