food and ingredients
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![Page 1: Food and ingredients](https://reader033.vdocuments.site/reader033/viewer/2022061117/5468337faf795985308b55c0/html5/thumbnails/1.jpg)
Food and Ingredients
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Content• Proteins
• Fats
• Carbohydrates
• Vitamins
• Minerals
• Water
• Artificial Additives
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Proteins
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What are proteins?
• Chains of amino acids
• 20 different kinds of amino acids
• Millions of different structures and connections could be constructed
• Needed to build new cells
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Structure and compounds
• Primary (sedimentary) structure
• Secondary structure
• Tertiary structure
• Quaternary structure
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Functions
• Construction material
• Transport function
• Structural function
• Constructional function
• Protection and prevention
• Proteins as enzymes
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Protein-rich food
• Lentils ( contain 23,5% of proteins )
• Tuna, peas and Roquefort cheese ( 23%)
• Chicken breast( 22.8%)
• Cold turkey cut, cooked ham,
sardines in oil,…
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Fats
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What are fats?• Main nutrients
• Also called lipids
• Complex and simple lipids
• Animalistic and herbal substrates• Saturated fatty acids
• Unsaturated fatty acids
• multiple saturated fatty acids
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Functions• Energy storage
• Build-up of cell membranes
• Flavour carrier
• Intake of fat-soluble vitamins
• A few fats:• Phospholipids
• Carotinoids
• Oils
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Carbohydrates
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What are carbohydrates?
• Basic modules of our organism
• Main nutrients
• Classification:• monosaccharides
• disaccharides
• polysaccharides
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Functions
• Provide energy when deconstructed
• Storage of energy
• Energy resource
• Backup-function
• Are modules of substances defining blood types
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Vitamins
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What are vitamins?
• Essential to maintain bodily functions
• Not storable
• Already small amounts affect the body
• Two different kinds:– Water - soluble vitamins (e.g. Vit B, Vit
C)
– Fat - soluble vitamins (e.g. Vit A, Vit D)
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Vitamins
• Fulfill different functions
• Can mostly be found in fruit and vegetables
• Deficiencies and overuse can cause diseases
– Exception: Surplus of water-soluble
vitamins can easily be exuded
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Minerals
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What are minerals?
• Inorganic substances
• Indestructible but leachable
• Only small amounts are needed
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Funtions
• Construction material of teeth and bones
• Active substances – Protection of the nerv fibres
– Regulating the ph-value of the blood
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Classification• Minerals are divided into two
categories through their consumed quantities:
– quantitative elements (like Calcium, Magnesium,…)
– trace elements (like Iron, Fluorine, Cobalt,…)
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Water
• Water forms about 70% of the human body
• Water dissolves substances in cells
• Metabolic reactions stop without water
• Blood must contain a lot of water
• Substances are transported around the body
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Artificial Additives
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What are additives?
• Optical enhancements
• Harmful for the body over the years
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Austrian Food Pyramid
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The Austrian National Nutrition Action Plan - NAP
• Diversified and balanced
• Reduction of over-, under- and malnutrition
• reduction of the rising overweight and obesity rates by 2020
• main focus since 2011 is the school catering
• target groups: infants, children, juveniles
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Thanks for attention