手法を比較

	D値とZ値	HACCP
分野	食品科学	食品科学
系統	Process / pipeline	Process / pipeline
提唱年	1923	1988
提唱者	Charles Olin Ball	Frank Bryan
種類	Microbial Inactivation Kinetics	Risk Management Framework
原典	Stumbo, C. R. (1973). Thermobacteriology in food processing (2nd ed.). Academic Press.	Bryan, F. L. (1992). Hazard Analysis Critical Control Point Evaluations: A Guide to Identifying Hazards and Assessing Risks Associated with Food Preparation and Storage. Journal of Food Protection, 55(1), 51-59.
別名	decimal reduction time, thermal resistance	—
関連	3	3
概要	D-value (decimal reduction time) and Z-value characterize the thermal resistance of microorganisms in food. D-value is the time required at a specific temperature to reduce microbial population by 90% (one log unit). Z-value is the temperature change needed to reduce the D-value tenfold. Together, they enable food processors to design thermal processes ensuring microbial safety while minimizing nutrient loss.	HACCP (Hazard Analysis and Critical Control Points) is a systematic preventive approach to food safety developed in the late 1980s by Bryan and colleagues. It identifies potential biological, chemical, and physical hazards in food production processes and establishes critical control points to prevent contamination. HACCP is now globally recognized as the gold standard for food safety management.