Handbook of Hygiene Control in the Food Industry

Table 4.3

Summary of disinfecting agents

Biocide

Application

Bactericidal

Sporicidal

Comments

Halogen-releasing agents

50±250 mg l

ˇ

1

>10 mg l

ˇ^1

>50 mg l

ˇ

1

Chlorine cheapIodine expensiveInfluenced by organic substances

Quaternary ammonium compounds

150±250 mg l

ˇ^1

>100 mg l

ˇ^1

No

Residual action (approx 1 day),neutral, non-aggressive

Peroxygens

3±90%

>6%

10±30%

More effective as mixture withacetic acid

Alcohols (ethanol)

20±70% (w/v)

>22% (w/v)

60±70% (w/v)

Not for large industrial application

Aldehydes

0.8±16 mg l

ˇ

1

<10 mg l

ˇ^1

20 mg l

ˇ^1

Bisphenols

2±20 mg kg

ˇ^1

>10 mg l

ˇ^1

No

Biguanides (chlorhexidine)

>150 mg l

ˇ^1

1±60 mg l

ˇ^1

Applied in hand-washing and oralproducts