So, for obtaining high-quality and high yield of red colorants
from fresh red peppers (FRPs), new extraction process should be
designed renewedly from pretreatment of FRPs. In this work, a new
process, with fresh red peppers without any drying process as
materials and aqueous ethanol as solvent for stage extraction of
capsaicinoids and red pigments, was developed. With this new
process, the losses of red colorants could be avoided entirely
because there is not any drying process of FRPs and the remain of
toxic organic solvent could be completely avoided because the
ethanol is only used in this process (Ethanol is considered as only
nontoxic solvent except water for food production