The results of this study demonstrate that the studied berries
possess antiproliferative properties and correlate with their
antioxidant levels. The bioactivity of Chilean ‘Murtilla’ berries is
significantly higher than the bioactivity of other studied samples,
however this index in the ‘Murtilla-like’ berries is comparable
with blue and raspberries. Fluorescence emission system of BSA
was studied with increased concentrations of flavonoids and berry
extracts and increased duration of reaction time. The interaction
between polyphenol extracts of‘Murtilla-like’ and BSAshowed that
the new kind of berries has a strong ability as other studied berries
to decrease the intrinsic fluorescence of BSA. The analytical methods
such as fluorescence and FTIR spectroscopy which were used
in this study can be applied in any system as an additional tool for
its identification, such as drug delivery system to control quercetin
releasing for cancer chemotherapy and others.