Презентация на тему Starch and modified strach

explain the presence of modified starch in food in

which it shouldn’t.
Tasks of my research work are:
 find the theoretical material of starch and modified starch;
 analyze the label on the content of modified starch products;
 check the products, which often have the starch;
 prepare the starch at home.

is a carbohydrate consisting of a large number of

glucose. This polysaccharide is produced by all green plants as an energy store. It is the most common carbohydrate in the human diet and it is in potatoes, wheat, corn, and rice.
Pure starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol. It was invented by George Washington Carver. It consists of two types of molecules: the linear and helical amylose and the branched amylopectin. Depending on the plant, starch generally contains 20 to 25% amylose and 75 to 80% amylopectin.

STARCH

English sterchen, meaning to stiffen.

possibly to glue papyrus (first described in History of

Pliny the Elder around AD 77-79). Romans used it in cosmetic creams, to powder the hair and to thick sauces. Persians and Indians used it to make wheat halva. In China starch used in paper production, from 700 AD.

History

(C6H10O5)n + nH2O
6nCO2 + 5nH2O → (C6H10O5)n+ 6nO2
Biosynthesis
Carbon

dioxide and water are converted into starch and oxigen

too hard to digest and derive 

starch:
   «Pripravych" "Soup Alphabet" 
 «Pripravych" "Star Soup" 
Products that contain modified starches:   Ketchup

«Calve»   «Maggi»   Mayonnaise Maheev "   «Knor» dressing for chicken   «Aktual" dairy product   «Rolton" meat 

■ Foods that contain wheat starch:
   Chips «Pringles» 
 Bread Waffle "Elizoveta"

■ Products that contain corn starch:   «Maggi» 

Take 3 potatoes.

water. To get a lot to overcome, the water

filters.

the glass will be clear. Ready starch should be

dried.

- is best known source of starch.
Sausage contains modified

starch. In the modified starch is the same reaction as that of natural gas. 

In the flour contains large amounts of starch and, consequently, in the bread.

More starch in unripe apples, since it is produced only in green parts of plants..

In rice starch contains 72 -78%, so it will turn a darker color.

1. Tablespoon of starch (flour) should dissolve in hot

water.

2. Cool to get a lot.

store you will find modified corn starch. It sounds

unappetizing but it is better not to eat them.

Experiment № 4