Lesson 18 Jan Protein / vegetarians / meat analogues
Published on: Mar 3, 2016
Transcripts - Protein
Revision guides Exam 28 June Aspects of Design and Making. This will include a bit of everything – including some of the sustainability issues from year 10. Tick list – use your check list – tick things off as we do them. Folder – bring this to each lesson and keep organised. Concentrate on using the PEE structure throughout. POINT, EXAMPLE, EXPLAIN. Make use of slideshare www.slideshare.net/LaurenWreathall
Revision guides Exam 28 June Today: Become familiar with the nutritional content of protein Understand how proteins are made Be able to know and explain the difference between HBV and LBV proteins.
Protein. Sources, types, alternative proteins (sensory testing) Vegetarians & Vegans Meat Fish Eggs
Why do we need protein? <ul><li>Firstly we need it to grow . This is why pregnant women and children particularly need more protein. </li></ul><ul><li>Secondly you need protein to repair , such as torn muscle or tissue, cuts, breaks or after surgery. </li></ul><ul><li>High protein foods like meat and fish also contain iron, vitamins A+D </li></ul><ul><li>If you don’t consume enough protein you </li></ul><ul><li>may suffer from slow growth . Protein also </li></ul><ul><li>helps the liver to function properly. </li></ul>Did Babs eat enough protein as a child?
As Always… <ul><li>Men need to eat more than women. </li></ul>Men = 55g of protein a day Women = 45g of protein a day
Protein = 20 amino acids <ul><li>It is the amino acids in protein which we need for the growth and repair of our bodies </li></ul><ul><li>Out of these 20 amino acids we require our body can make 11 of these naturally. </li></ul><ul><li>9 amino acids our body cannot make and we get them from the products we eat……... </li></ul>Card sort
HBV or LBV??? High Biological Value Protein These contain the 9 amino acids our body CANNOT make. Therefore they contain a high amount of protein. High protein foods are also known as ‘High Risk’ – because bacteria thrive on high protein foods. Low Biological Value Protein These do not contain the 9 amino acids our body CANNOT make. These are lower in protein, and so you must eat a large range of them to ensure you consume the 9 amino acids we cannot make. Nut allergies?
<ul><li>Lacto Vegetarians . They do not eat any meat products, including lard. They do not eat Fish. </li></ul><ul><li>Vegans . Do not eat any Animal products, such eggs, milk, cheese, yoghurt, meat. </li></ul>Who might struggle to consume enough protein? Why may someone become a vegetarian? H/W
Meat Analogue / substitutes They provide vegetarians with HBV proteins. They can be used like Meat and replicate the texture of meat. They are also lower in saturated fats Compared to meat. They can have a very dry texture (no fat to keep them moist)
Women 55g per day Iron Men 45g per day Slow Growth High risk foods Vegetarians High biological value Protein Growth and repair. After surgery or illness. Dry texture, to be used with flavoursome ingredients. Meat analogue Meat 20 Children and pregnant women Fish Seeds and Nuts Low biological value Amino acids