The classical variant of the "Isolation of hesperidine from orange peel" is easily performed.
For an extraction of a product from natural sources the yield depends heavily on the
quality of the biological raw material and thus cannot be evaluated easily.
(Eco)toxicological data for the educt and the product
hesperidine
are incomplete. No data are available on chronic toxicity. According to
theoretical prediction methods no
chronic toxicity
is suspected. For the solvents used in this experiment relevant (eco)toxicological
data are available. Only
methanol
exhibits a significant acute toxicity. The other organic solvents
dimethyl sulfoxide,
petroleum ether (40/60),
2-propanol,
1-butanol
and
acetic acid
are of relatively low acute toxicity and do not exhibit chronic toxicity
.
Except for
petroleum ether (40/60)
all organic substances in this experiment are biologically easily degradable and
mineralizable. Only the solvents have been evaluated for ecotoxicity and possess
a low to medium toxicity for aquatic organisms
.
Summed up we evaluate this experiment with an average economic efficiency
and low toxicological risks, but partly unknown ecotoxicological risks, but a low
environmental persistence for most of the substances with the "yellow light".