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@ARTICLE{Silva:166554,
author = {V. C. Silva and A. M. G. S. Silva and J. A. D. Basílio and
J. A. Xavier and T. G. do Nascimento and R. M. Z. G. Naal
and M. P. Del Lama and L. A. D. Leonelo and N. L. O. N.
Mergulhão and F. C. A. Maranhão and D. M. W. Silva and R.
Owen and I. F. B. Duarte and L. C. G. Bulhões and I. D.
Basílio and M. O. F. Goulart},
title = {{N}ew {I}nsights for {R}ed {P}ropolis of
{A}lagoas-{C}hemical {C}onstituents, {T}opical {M}embrane
{F}ormulations and {T}heir {P}hysicochemical and
{B}iological {P}roperties.},
journal = {Molecules},
volume = {25},
number = {24},
issn = {1420-3049},
address = {Basel},
publisher = {MDPI44576},
reportid = {DKFZ-2020-02997},
pages = {5811},
year = {2020},
abstract = {The main objectives of this study were to evaluate the
chemical constitution and allergenic potential of red
propolis extract (RPE). They were evaluated, using high
performance liquid chromatography (HPLC) and the release of
β-hexosaminidase, respectively. A plethora of biologically
active polyphenols and the absence of allergic responses
were evinced. RPE inhibited the release of
β-hexosaminidase, suggesting that the extract does not
stimulate allergic responses. Additionally, the
physicochemical properties and antibacterial activity of
hydrogel membranes loaded with RPE were analyzed.
Bio-polymeric hydrogel membranes (M) were obtained using
$5\%$ carboxymethylcellulose (M1 and M2), $1.0\%$ of citric
acid (M3) and $10\%$ RPE (for all). Their characterization
was performed using thermal analysis, Fourier transform
infrared (FTIR), total phenolic content, phenol release test
and, antioxidant activity through
2,2-diphenyl-1-picrylhydrazyl radical (DPPH) and Ferric
Reducing Antioxidant Power (FRAP). The latter appointed to
the similar antioxidant capacity of the M1, M2 and M3. The
degradation profiles showed higher thermostability to M3,
followed by M2 and M1. The incorporation of RPE into the
matrices and the crosslinking of M3 were evinced by FTIR.
There were differences in the release of phenolic compounds,
with a higher release related to M1 and lower in the
strongly crosslinked M3. The degradation profiles showed
higher thermostability to M3, followed by M2 and M1. The
antibacterial activity of the membranes was determined using
the disc diffusion assay, in comparison with controls,
obtained in the same way, without RPE. The membranes
elicited antibacterial activity against Staphylococcus
aureus and Staphylococcus epidermidis, with superior
performance over M3. The hydrogel membranes loaded with RPE
promote a physical barrier against bacterial skin infections
and may be applied in the wound healing process.},
keywords = {allergenic activity (Other) / anti-staphylococcal (Other) /
biopolymer (Other) / chromatographic profile (Other) /
phytochemical screening (Other) / sodium
carboxymethylcellulose (Other)},
cin = {C120},
ddc = {540},
cid = {I:(DE-He78)C120-20160331},
pnm = {313 - Cancer risk factors and prevention (POF3-313)},
pid = {G:(DE-HGF)POF3-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33317120},
doi = {10.3390/molecules25245811},
url = {https://inrepo02.dkfz.de/record/166554},
}