Food Science and Nutrition, Volume (12), No (4), Year (2024-2) , Pages (2426-2435)

Title : ( Study on synergistic effects of curcumin and bixin against foodborne pathogens )

Authors: fereshteh hoseini , Mohammad B Habibi Najafi , Abdul Rasool Oromiehie , Mehdi Nassiri Mahallati , Masoud Yavarmanesh ,

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Various studies have shown that natural colorants, in addition to their coloring attributes, have valuable biological effects such as antioxidant, anti-inflammation, and anticarcinogenic properties. Moreover, their use as a food colorant can restrict the potential disadvantages of synthetic additives and turn foods into functional products. In this study, in vitro antimicrobial activities of two natural colorants of bixin and curcumin against some important foodborne pathogens: Staphylococcus aureus (S. aureus), Listeria innocua (L. innocua), and Escherichia coli (E. coli) were investigated by disk diffusion method. Minimum inhibitory concentration and minimum bactericidal concentration values were determined by agar dilution and broth microdilution methods. The synergistic activity of the colorants against selected microorganisms was assayed by the checkerboard microdilution method. The results showed that the inhibitory effects of bixin against S. aureus were more pronounced than E. coli and L. innocua. The lowest concentration of curcumin (0.6 mg/mL) in the disk diffusion method was not inhibited by any tested bacteria. However, it was effective at the higher concentrations against three microorganisms, but its diameter of inhibition zones was lower than gentamicin in all concentrations. Synergetic effects were observed by curcumin and bixin combination against S. aureus (FICI ≤ 0.5), but they act as an antagonist against E. coli and L. innocua. The results of the synergy test were confirmed by the isobologram curves.


, bixin, curcumin, E. coli, L. innocua, S. aureus, synergism, synergistic activity
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author = {فرشته حسینی and Habibi Najafi, Mohammad B and عبدالرسول ارومیه ای and Nassiri Mahallati, Mehdi and Yavarmanesh, Masoud},
title = {Study on synergistic effects of curcumin and bixin against foodborne pathogens},
journal = {Food Science and Nutrition},
year = {2024},
volume = {12},
number = {4},
month = {February},
issn = {2048-7177},
pages = {2426--2435},
numpages = {9},
keywords = {bixin; curcumin; E. coli; L. innocua; S. aureus; synergism; synergistic activity},


%0 Journal Article
%T Study on synergistic effects of curcumin and bixin against foodborne pathogens
%A فرشته حسینی
%A Habibi Najafi, Mohammad B
%A عبدالرسول ارومیه ای
%A Nassiri Mahallati, Mehdi
%A Yavarmanesh, Masoud
%J Food Science and Nutrition
%@ 2048-7177
%D 2024