Lecture 6- thermal and non-thermal processing Flashcards
what is thermal processing and what are some examples
what is the principle of thermal processing
what are the 3 processes of heat transfer
what is conduction
what is convection
what is radiation
what are the 3 methods of thermal FP and what type of heat does each have
what does the choice of thermal FP depend on
what is blanching and what is it used on
what is pasteurisation and what is it used on
what are the 3 types of temps used on pasteurisation
what is sterilisation and what is it used on
what is the d value
what is the 12D process used in
what is the z value
what does the correct temp time combo allow
what does the thermal curves relate to
what does the d and z value look like on a graph and what does each value rate it
what is the aim, pro, con and examples of mild heat treatment
what is the aim, pro, con and examples of severe heat treatment
Each pro and con for mild vs heat has a balance of main effects on….
what is the equation for % loss
what is the formula of working out if something supports a content claim
what is non thermal processing and what are the 4 types
what is MAP and what is it used on
what is CAP
what are the benefits of MAP
what gases are in normal air
what is >30% CO2 used on
what is -10% CO2 used on
what type of agent is CO2 and what is the function
what type of filler is N2
what is food irradiation
is food irradiation widely used
what is 1 gray equal too
what does a low dose applications (up to 1 kGy) used in
what does a medium dose applications of 1 -10 Gy used in
what is high pressure processing
what are additives
what must additives be used in
what are the 3 main types of additives
what are sensory additives used in
what 2 things can preservation additives be
what 2 things can antimicrobials additives be
what 2 things can antioxidant additives be
what are nutritive additives used in
how do we classify additives
what are weak acids
what are oxidising agents
what is chain breaking
what are secondary antioxidants
explain how the UPFs definitions have changed over time
explain the culinary food triangle
What does thermal conductivity depend on
Type of material
