Table 2.

Impacts of sterilization parameters on microbial density and betacyanin content in red-fleshed dragon fruit juice.

Sterilization parameters		Microbial density		Betacyanins content (mg/100g)	Compliance with standards (QCVN 6-2:2010/BYT)
Temperature (°C)	Duration (min)	Aerobic bacteria (CFU/mL)	Yeast and mold (CFU/mL)
85	10	591; 509; 664	4454; 3364; 4091	10.33	No
90		9; 36; 73	818; 545; 273	8.87	Partial
95		0; 0; 0	0; 0; 0	7.22	Yes
95	4	27; 73; 100	91; 455; 91	10.81	No
	6	9; 18; 0	0; 0; 0	9.17	Yes
	8	0; 0; 0	0; 0; 0	8.45	Yes