Untitled

Table 7.4

The physiological subdivision of

Clostridium botulinum

Group

Toxin types Proteolytic Lipolytic

Saccharolytic

Psychrotrophic(min.growthtemp

.)

Inhibition by salt(a

)w

Heat resistance

Pathogenicity

I

A, B or F

þþþ

10%

þ

Humans

(10–12

1 C)

(0.94)

(D

121

0.1–

0.25 min)

II

B, E or F

þþþ

5%

Humans

(3–5

1 C)

(0.975)

(D

80

0.6–3.3 min)

III

C

,C 1

or D 2

þþ

15

1 C

3%



Usually animals

and birds

IV

G

þ

12

1 C

4

3%

No data

Humans

200 Bacterial Agents of Foodborne Illness