CONSERVATION OF CHLOROPHYLL A AGGREGATES FORMED UNDER A SOLID CONDITION IN THEIR AQUEOUS SOLUTIONS. A NOTABLE ROLE OF SYNTHETIC AND NATURAL MACROMOLECULES

Abstract

Abstract Aggregation states of chlorophyll a (Chla) solid samples were found to be conserved in a homogeneous aqueous solution when dissolved in an aqueous solution of a water-soluble synthetic or natural macromolecule, e.g., PVA, PVP, PEG or BSA. The conservation of aggregation states was effective both for the monomeric (670nm) and microcrystalline (740nm) species. Furthermore, the states of Chla aggregate were stable for at least 1.5 years in the aqueous solution, as showing no significant spectral changes.