How to dissolve dragon fruit extraction into poly lactic acid polymer solution?

Qurratu Aini Mat Ali @Qurratu-Aini-Mat-Ali

20 January 2023 1 10K Report

I have extracted dragon fruit flesh by using methanol to get the betalain pigment. Then I want to dissolve this pigment into poly lactic acid solution (PLA dissolve in chloroform). But the pigment not dissolve in the solution. How to dissolve this pigment?

Abdelkader BOUAZIZ

Dear Qurratu Aini Mat Ali, it is a pigment or a dye ? Pigments do not disolve (contrary to dyes), they are only dispersed. Anyway if it doesn't disolve in chloroform then find a common solvent for both, and dissolve each one separatly, after that join both solutions under mixing. My Regards

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