The effect of cranberry juice and a cranberry functional beverage on the growth and metabolic activity of selected oral bacteria

Table 3 Number of cfu per 1 mL of reference and test cultures at 48 h

Antimicrobial agent	Concentration of CJ or CFB (mL/mL)	Culture symbol	A. naeslundii	S. mutans	L. paracasei subsp. paracasei
Reference culture	–	RC	6.57 × 10⁷	9.40 × 10⁷	2.80 × 10⁸
Cranberry juice	0.50000	CJ1	5.00 × 10^5***	No growth	3.23 × 10^6***
	0.25000	CJ2	7.43 × 10^7NS	1.58 × 10^7***	2.04 × 10^8**
	0.12500	CJ3	1.93 × 10^7***	1.45 × 10^8#	4.46 × 10^8##
	0.06250	CJ4	4.60 × 10^7**	2.80 × 10^8###	2.85 × 10^8NS
	0.03125	CJ5	4.60 × 10^7***	2.46 × 10^8###	2.86 × 10^8NS
Cranberry functional beverage	0.50000	CFB1	5.97 × 10^7NS	6.40 × 10^7*	1.45 × 10^8**
	0.25000	CFB2	1.63 × 10^8##	1.93 × 10^8##	5.73 × 10^8##
	0.12500	CFB3	5.07 × 10^8###	2.23 × 10^8##	2.34 × 10^8NS

Values are means from three replicates. *, **, ***: Significantly lower than reference culture (*p < 0.05, **p < 0.01, *** p < 0.001). ^{#, ##, ###}: Significantly higher than reference culture (^#p < 0.05, ^##p < 0.01, ^###p < 0.001). CJ, cranberry juice; CFB, cranberry functional beverage; NS, not significantly different from reference culture

ISSN: 1472-6831