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Table 3 Effect of gamma irradiation and storage on the inactivation of S. Typhimurium 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

6.49 ± 0.08Aa

5.21 ± 0.13Ba

4.83 ± 0.11Ca

4.04 ± 0.11Da

ND

2

6.02 ± 0.08Ab

5.19 ± 0.13Ba

4.62 ± 0.11Cb

3.52 ± 0.09Db

ND

5

5.66 ± 0.13Ac

4.96 ± 0.13Bb

4.49 ± 0.11Cbc

3.33 ± 0.09Dbc

ND

12

5.55 ± 0.13Ac

4.69 ± 0.11Bc

4.33 ± 0.11Cc

3.24 ± 0.09Dd

ND

21

5.36 ± 0.13Ad

4.67 ± 0.11Bc

3.99 ± 11Cd

2.88 ± 0.11De

ND

30

4.59 ± 0.11Ae

4.09 ± 0.11Bd

3.14 ± 0.09Ce

2.21 ± 0.13Df

ND

45

3.83 ± 0.09Af

3.32 ± 0.09Be

2.42 ± 0.13Cf

1.25 ± 0.09Dg

ND

60

3.83 ± 0.09Af

ND

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