Table 5.
Effects of modified atmosphere packaging on growth of total mesophilic aerobes and yeasts and molds of blueberry muffins stored at 25°C for 35 days

Storage time (day)	Atmosphere	Microbial population (log CFU/g)
Storage time (day)	Atmosphere	Total mesophilic aerobe	Yeast and mold

3	Air	1.6±0.7^df1)	1.6±0.6^g
	CO₂-N₂ (1:1)	< 1^g2)	< 1^h
	CO₂-N₂ (7:3)	< 1^g	< 1^h
	CO₂	< 1^g	< 1^h

7	Air	2.3±0.2^df	2.3±0.3^efg
	CO₂-N₂ (1:1)	< 1^g	< 1^h
	CO₂-N₂ (7:3)	< 1^g	< 1^h
	CO₂	< 1^g	< 1^h

14	Air	4.2±0.7^bc	3.5±0.3^cde
	CO₂-N₂ (1:1)	2.4±1.6^df	2.1±1.3^efg
	CO₂-N₂ (7:3)	< 1^g	< 1^h
	CO₂	< 1^g	< 1^h

21	Air	6.6±0.6^a	5.7±1.1^ab
	CO₂-N₂ (1:1)	4.2±0.6^bc	3.9±0.8^bcd
	CO₂-N₂ (7:3)	2.9±0.3^cd	2.8±0.3^efg
	CO₂	< 1^g	< 1^h

35	Air	6.5±0.6^a	6.8±0.2^a
	CO₂-N₂ (1:1)	5.3±0.3^ab	5.0±0.6^abc
	CO₂-N₂ (7:3)	2.0±1.1^df	1.9±1.0^fg
	CO₂	< 1^g	< 1^h

Values with different letter superscripts in each column are significantly different each other at p<0.05.
The limit of detection was 1.0 log CFU/g.