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Water activity

In food science, water activity (aw) of a food is the ratio of its vapor pressure to the vapor pressure of water at the same temperature, both taken at equilibrium. Pure water has a water activity of one. Put another way, aw is the equilibrium relative humidity (ERH) expressed as a fraction instead of as a percentage. As temperature increases, aw…

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Uses

Measurement

Moisture content

Solar planets habitability

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Map overview Semantic statistics

Water activity

Nodes72
Edges71
Triples37
Avg. degree1.97
Density0.027778
Components1

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Water activity

Top relations

related to Food safety · 13
Water activity → Critical Control Points, Drug Administration, FDA, Food, For, HACCP, Hazard Analysis, It, Measurements, Samples, Scott, They, Water
related to Resistive electrolytic hygrometers · 5
Water activity → Resistive, Such, The, This, Volatiles
related to Capacitance hygrometers · 4
Water activity → As, Capacitance, They, This
related to Food product design · 4
Water activity → Food, If, This, Water
related to External links · 3
Water activity → How, Isotopic, Wayback Machine
related to Moisture content · 3
Water activity → Isotherms, These, Water
related to Use in humidity control · 2
Water activity → There, Therefore
is a · 1
Water activity → thermodynamic activity of water as solvent and the relative humidity of the surrounding air at equilibrium
measured by · 1
Water activity → Water
related to Uses · 1
Water activity → Water

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Important terminology

water activity aw food air humidity life citation needed temperature equilibrium relative product vapor values capacitance dew hygrometers point also

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Water activityis athermodynamic activity of water as solvent and the relative humidity of the surrounding air at equilibrium0.90text
Water activitymeasured byWater0.60section
Water activityrelated to Capacitance hygrometersCapacitance0.60section
Water activityrelated to Capacitance hygrometersAs0.60section
Water activityrelated to Capacitance hygrometersThis0.60section
Water activityrelated to Capacitance hygrometersThey0.60section
Water activityrelated to External linksIsotopic0.60section
Water activityrelated to External linksWayback Machine0.60section
Water activityrelated to External linksHow0.60section
Water activityrelated to Food product designFood0.60section
Water activityrelated to Food product designIf0.60section
Water activityrelated to Food product designThis0.60section

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