Effect of Hibiscus sabdariffa extract and Nigella sativa oil on the growth and aflatoxin B 1 production of Aspergillus flavus and Aspergillus parasiticus strains

Saifeldin A F El-Nagerabi, Saif N. Al-Bahry, Abdulkadir E. Elshafie, Saud AlHilali

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

This study was undertaken to evaluate the inhibitory effect of Hibiscus sabdariffa calyx extract at concentrations of 5, 7.5, 10 and 12.5 g/100 ml and Nigella sativa oil at concentrations of 1, 2 and 3 ml/100 ml on the growth and aflatoxin B 1 production by Aspergillus parasiticus (CBS 921.7) and Aspergillus flavus (SQU 21) strains. The inhibition of aflatoxin B 1 production by the different concentrations of H. sabdariffa calyx ranged between 91.5-97.9% and 87.1-93.3% for A. flavus and A. parasiticus strains, respectively, whereas the inhibition by different concentrations of N. sativa oil ranged between 47.9 and 58.3% for A. flavus and 32-48% for A. parasiticus strains. The different concentrations of H. sabdariffa calyx and N. sativa oil had no significant effect on the growth of either Aspergillus species. Neither H. sabdariffa calyx nor N. sativa oil detoxified pure aqueous aflatoxin. Our results suggest that H. sabdariffa calyx and N. sativa oil extracted from seeds had metabolic effects on aflatoxin biosynthesis pathway of both Aspergillus species and can be used as an effective biocontrol and non-toxic biopreservatives in food industry against aflatoxin contamination.

Original languageEnglish
Pages (from-to)59-63
Number of pages5
JournalFood Control
Volume25
Issue number1
DOIs
Publication statusPublished - May 2012

Fingerprint

Hibiscus
Hibiscus sabdariffa
Nigella sativa
Aspergillus flavus
Aspergillus parasiticus
Aflatoxin B1
Aspergillus
calyx
aflatoxins
Aflatoxins
oils
extracts
Growth
biopreservatives
Food Industry
food industry
Seeds
biological control
caraway oil
biosynthesis

Keywords

  • A. parasiticus
  • Aflatoxin B
  • Aspergillus flavus
  • Biosynthesis
  • Detoxification
  • Hibiscus sabdariffa
  • Nigella sativa

ASJC Scopus subject areas

  • Food Science
  • Biotechnology

Cite this

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title = "Effect of Hibiscus sabdariffa extract and Nigella sativa oil on the growth and aflatoxin B 1 production of Aspergillus flavus and Aspergillus parasiticus strains",
abstract = "This study was undertaken to evaluate the inhibitory effect of Hibiscus sabdariffa calyx extract at concentrations of 5, 7.5, 10 and 12.5 g/100 ml and Nigella sativa oil at concentrations of 1, 2 and 3 ml/100 ml on the growth and aflatoxin B 1 production by Aspergillus parasiticus (CBS 921.7) and Aspergillus flavus (SQU 21) strains. The inhibition of aflatoxin B 1 production by the different concentrations of H. sabdariffa calyx ranged between 91.5-97.9{\%} and 87.1-93.3{\%} for A. flavus and A. parasiticus strains, respectively, whereas the inhibition by different concentrations of N. sativa oil ranged between 47.9 and 58.3{\%} for A. flavus and 32-48{\%} for A. parasiticus strains. The different concentrations of H. sabdariffa calyx and N. sativa oil had no significant effect on the growth of either Aspergillus species. Neither H. sabdariffa calyx nor N. sativa oil detoxified pure aqueous aflatoxin. Our results suggest that H. sabdariffa calyx and N. sativa oil extracted from seeds had metabolic effects on aflatoxin biosynthesis pathway of both Aspergillus species and can be used as an effective biocontrol and non-toxic biopreservatives in food industry against aflatoxin contamination.",
keywords = "A. parasiticus, Aflatoxin B, Aspergillus flavus, Biosynthesis, Detoxification, Hibiscus sabdariffa, Nigella sativa",
author = "El-Nagerabi, {Saifeldin A F} and Al-Bahry, {Saif N.} and Elshafie, {Abdulkadir E.} and Saud AlHilali",
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T1 - Effect of Hibiscus sabdariffa extract and Nigella sativa oil on the growth and aflatoxin B 1 production of Aspergillus flavus and Aspergillus parasiticus strains

AU - El-Nagerabi, Saifeldin A F

AU - Al-Bahry, Saif N.

AU - Elshafie, Abdulkadir E.

AU - AlHilali, Saud

PY - 2012/5

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N2 - This study was undertaken to evaluate the inhibitory effect of Hibiscus sabdariffa calyx extract at concentrations of 5, 7.5, 10 and 12.5 g/100 ml and Nigella sativa oil at concentrations of 1, 2 and 3 ml/100 ml on the growth and aflatoxin B 1 production by Aspergillus parasiticus (CBS 921.7) and Aspergillus flavus (SQU 21) strains. The inhibition of aflatoxin B 1 production by the different concentrations of H. sabdariffa calyx ranged between 91.5-97.9% and 87.1-93.3% for A. flavus and A. parasiticus strains, respectively, whereas the inhibition by different concentrations of N. sativa oil ranged between 47.9 and 58.3% for A. flavus and 32-48% for A. parasiticus strains. The different concentrations of H. sabdariffa calyx and N. sativa oil had no significant effect on the growth of either Aspergillus species. Neither H. sabdariffa calyx nor N. sativa oil detoxified pure aqueous aflatoxin. Our results suggest that H. sabdariffa calyx and N. sativa oil extracted from seeds had metabolic effects on aflatoxin biosynthesis pathway of both Aspergillus species and can be used as an effective biocontrol and non-toxic biopreservatives in food industry against aflatoxin contamination.

AB - This study was undertaken to evaluate the inhibitory effect of Hibiscus sabdariffa calyx extract at concentrations of 5, 7.5, 10 and 12.5 g/100 ml and Nigella sativa oil at concentrations of 1, 2 and 3 ml/100 ml on the growth and aflatoxin B 1 production by Aspergillus parasiticus (CBS 921.7) and Aspergillus flavus (SQU 21) strains. The inhibition of aflatoxin B 1 production by the different concentrations of H. sabdariffa calyx ranged between 91.5-97.9% and 87.1-93.3% for A. flavus and A. parasiticus strains, respectively, whereas the inhibition by different concentrations of N. sativa oil ranged between 47.9 and 58.3% for A. flavus and 32-48% for A. parasiticus strains. The different concentrations of H. sabdariffa calyx and N. sativa oil had no significant effect on the growth of either Aspergillus species. Neither H. sabdariffa calyx nor N. sativa oil detoxified pure aqueous aflatoxin. Our results suggest that H. sabdariffa calyx and N. sativa oil extracted from seeds had metabolic effects on aflatoxin biosynthesis pathway of both Aspergillus species and can be used as an effective biocontrol and non-toxic biopreservatives in food industry against aflatoxin contamination.

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KW - Aflatoxin B

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