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Table 1 Effect of gamma irradiation and storage on the inactivation of L. monocytogenes at 28 ± 2 °C in powdered Legon-18 pepper (C. annuum)

From: The role of gamma irradiation and storage at 28 ± 2 °C on the inactivation of Listeria monocytogenes, Escherichia coli and Salmonella enterica serotype Typhimurium in sun-dried Legon-18 pepper (Capsicum annuum) powder

Storage days

 Microbial count (log cfug-1)

0 kGy

1 kGy

2 kGy

4 kGy

5 kGy

0

5.96 ± 0.08Aa

5.37 ± 0.11Ba

4.20 ± 0.09Ca

4.55 ± 0.09Da

ND

2

5.88 ± 0.08Aa

5.11 ± 0.11Bb

4.16 ± 0.09Cb

3.53 ± 0.11Db

ND

5

5.77 ± 0.08Aa

4.97 ± 0.11Bb

3.96 ± 0.09Cc

2.87 ± 0.11Dc

ND

12

5.48 ± 0.11Ab

4.70 ± 0.11Bc

3.79 ± 0.09Cc

2.56 ± 0.11Dd

ND

21

5.12 ± 0.11Ac

4.60 ± 0.09Bc

3.54 ± 0.08Cd

2.37 ± 0.13De

ND

30

4.86 ± 0.11Ad

4.00 ± 0.09Bd

2.88 ± 0.08Ce

2.17 ± 0.13Df

ND

45

4.75 ± 0.11Ad

2.92 ± 0.08Be

2.16 ± 0.11Cf

1.65 ± 0.13Dg

ND

60

4.55 ± 0.09Ae

1.89 ± 0.11Bf

ND

ND

ND

  1. Least Significant Difference. Means with the same letters (upper cases, doses within a particular day) in the same row are not significantly (P > 0.05) and means with the same letters in the same column (lower case, doses per day) are not significantly different (P > 0.05) from each other
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Food Safety and Risk

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