Journal of Food Quality

Research Article

Microbial Safety of Low Water Activity Foods: Study of Simulated and Durban Household Samples

Table 4

Populations of S. aureus ATCC 25923 and B. cereus in macadamia butter at varying concentrations of sugar stored at 18°C.


Concentration of sucrose at 18°C	Populations (Log CFU/g) over storage time (days)
Concentration of sucrose at 18°C	1	7	14	21	28

S. aureus ATCC 25923
0%	5,29	4,94	4,51	3,92	3,45
12%	4,74	4,31	4,029	ND	ND
20%	4,61	ND	ND	ND	ND

B. cereus
0%	4,29	3,94	2,24	ND	ND
12%	5,053	5,021	4,86	4,40	4,30
20%	3,64	ND	ND	ND	ND

(1) Means with same superscript letters in rows within pathogen are not significantly different . (2) Means . (3) ND: not detected; ns: no significance.