Creado por Holly Bamford
hace más de 9 años
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Pregunta | Respuesta |
Additive | a natural or synthetic substance which is added to food for a specific purpose |
Aeration | when air is trapped in a mixture |
Aesthetic | attractive |
Ambient temperature | normal room temperature (20-25ºC) |
Anaerobic | not needing oxygen |
Antioxidant | a substance that stops fat in food going rancid |
Antibacteria | substance that will usually destroy bacteria |
Aseptic packaging | preserves foods without using preservatives or chilling |
Biodegradable | broken down totally by bacteria |
Blast chilling | quick freezing – small ice crystals form and there is less damage to the food than in slow freezing |
Calcium | a mineral element which is essential for strong bones and teeth |
Caramelisation | process of changing the colour of sugar from white to brown when heated |
Clostridium | a form of bacterial food poisoning |
Coagulation | the change in the structure of protein brought about by heat, mechanical action or acids |
Coeliac disease | caused by an intolerance of the protein gluten present in the cereals wheat, barley and rye |
Cook-Chill | a method of food preparation in which the food is cooked then rapidly chilled and stored below 5ºc thus increasing the keeping quality of the product for a short time |
Colloidal structure | when two substances are mixed together |
Colloids | formed when one substance is dispersed through another |
Critical Control Point (CCP) | when a food safety hazard can be prevented/reduced to an acceptable level |
Cryogenic freezing | food is immersed or sprayed with liquid nitrogen |
Danger zone | the temperature range (5 to 63ºC) in which bacteria grow |
Deteriorate | starting to decay and losing freshness |
Dextrinisation | when starch converts into a sugar |
Dietary Fibre | material, mostly from plants, which is not digested by humans but which absorbs water and binds other residues in the intestine thus aiding the excretion of waste material from the body |
Diverticular Disease | a disease caused by a lack of fibre in the diet |
E numbers | the classification system of permitted additives produced by the European Union |
Emulsifier | a substance that stops oil and water from separating |
Emulsifying agent | a substance that will allow two immiscible liquids (substances that do not mix) to be held together, e.g. lecithin in egg yolk |
Enrobing | coating and surrounding a product with another ingredient |
Enzymic browning | reaction between a food product and oxygen resulting in a brown colour, e.g. sliced potato has brown patches when sliced and left in the air |
Fermentation | when yeast produces carbon dioxide |
Fibre | indigestible parts of food – usually cellulose, which remains in the intestine after digestion |
Foams | a mixture of gas and liquid is called a foam, e.g. air whisked into egg white creates a foam |
Gelatinisation | heated starch granules absorb liquid and swell, and burst to thicken liquid |
Halal | food which is selected and prepared according to Islamic dietary law |
Hermetically | airtight |
Irradiation | a process used to reduce spoilage in some foods |
Kosher | food which is selected and prepared in accordance with Jewish dietary law |
Lecithin | present in egg yolk and soya and used as an emulsifier in manufactured foods |
Micronutrient | vitamins and minerals which are needed in small quantities for health |
Modified starches | starches that have been altered to perform additional functions |
Non starch polysaccharide | the part of food that is not digested by the body (fibre) |
Organoleptic | sensory qualities (texture, flavour, aroma, appearance) of a food product. |
Pasteurisation | the process of prolonging the keeping quality of products such as milk by heating to destroy harmful bacteria |
Preservative | a substance that extends the shelf life of a food |
Quality Assurance | a guarantee by retailers and manufacturers that products are safe and of a good quality |
Raising agent | increases the volume of doughs, batters and mixtures by promoting gas release (aeration) |
Shortening | when fat coats the flour particles preventing absorption of water resulting in a crumbly mixture |
Suspensions | a solid held in a liquid |
Syneresis | usually refers to eggs; if overcooked, the proteins shrink as they coagulate and separate from the watery liquid |
Tolerance levels | the amount of difference allowed when making |
Viscosity | the thickness of a liquid or a mixture, such as a sauce |
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