Volume 58, August 2013, Pages 432–439
Cytotoxic and bioactive properties of different color tulip flowers and degradation kinetic of tulip flower anthocyanins
Highlights
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- Recently, flower extracts have been suggested to be used as coloring agents.
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- Natural colorants red tulip flower extract are more desirable than artificial ones.
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- The studied tulip flowers had desirable bioactive characteristics.
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- The orange red, pink and violet extracts had no cytotoxic activity against MCF-7.
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- Red, pink and violet tulip flowers can be potentially used as coloring agents.
Abstract
This
study was conducted to determine the potential use of anthocyanin-based
extracts (ABEs) of wasted tulip flowers as food/drug colorants. For
this aim, wasted tulip flowers were samples and analyzed for their
bioactive properties and cytotoxicity. Total phenolic contents of the
extracts of the claret red (126.55 mg of gallic acid equivalent (GAE)/g
dry extract) and orange–red (113.76 mg GAE/g dry extract) flowers were
the higher than those of the other tulip flowers. Total anthocyanin
levels of the violet, orange–red, claret red and pink tulip flower
extracts were determined as 265.04, 236.49, 839.08 and 404.45 mg
pelargonidin 3-glucoside/kg dry extract, respectively and these levels
were higher than those of the other flowers. The extracts were more
effective for the inhibition of Listeria monocytogenes, Staphylococcus aureus and Yersinia enterocolitica
compared to other tested bacteria. Additionally, the cytotoxic effects
of five different tulip flower extracts on human breast adenocarcinoma
(MCF-7) cell line were investigated. The results showed that the orange
red, pink and violet extracts had no cytotoxic activity against MCF-7
cell lines while yellow and claret red extracts appeared to be toxic for
the cells. Overall, the extracts of tulip flowers with different colors
possess remarkable bioactive and cytotoxic properties.
Keywords
- Wasted tulip flowers;
- Bioactivity;
- Cytotoxicity;
- Kinetic
- Corresponding author. Tel.:
+90 212 383 45 74; fax: +90 212 383 40 11.
Copyright © 2013 Elsevier Ltd. All rights reserved.
