How can I concentrate a pigment extract from a plant without affecting its chemical composition?

Is skin yellowness an numerical or ordinal variable?

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The aqueous fraction of the hydroethanolic extract is showing the presence of palmitic acid. What is the mechanism responsible ?

Palmitic acid presence in aqueous fraction

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Which solvent is better to dissolve with secondary metabolites extracted from fungi?

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For systematic review data extraction, should I use ITT or PP analysis, and count all randomized participants or only those who completed the study?

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For the moringa oleifera extract using ethanol as the solvent,what is the alternative method to concentrate the extract other than rotary evaporation?

99% pure ethanol was used for maceration also alternate methods along with the temperature and time to concentrate the extract can be specified

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What are the factors that causes the sample to have higher efficacy at lower concentration?

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What Are the Best Alternatives to the MTT Assay for Assessing Cell Toxicity of Colored Herbal Extracts?

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How can I extract my bibliography from researchgate ?

how can I extract my bibliography from researchgate ?

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Mário Silva

Hello!

Applying vacuum could be your best and cheapest choice. Since your target is a pigment, I wouldn't expect it to be so volatile, however double-check it.

Cheers

Theodoros Chatzimitakos

I believe freeze-drying is the best option.

Hayat Essalmani

What about centrifugation ?

Masimba Tapera

Mário Silva Theodoros Chatzimitakos Hayat Essalmani thank you for your suggestions.

Hardlife Rambwawasvika

Freeze drying is ideal. In the event its beyond reach, add ethanol to a concentration above 70% then go for rotary evaporation.