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The properties of starch and crumb making :
The role of starch in crumb is explained as below:
-starch lost its form and shape by effect of heating and it cause : -starch links with all of exist water. starch transform to elastic bulk so the texture of product appear .starch transform to soluble sugar and lost some feature of bread texture. internal texture of bread moisture and lost some it´s elastic feature , circle paste in crumb appear which is one of the bread defect.
The starch transformation :
starch swell at 60 ْC temperature and cause, - proteins membrane coagulate so water penetrate in starch. -by penetration of water in starch it moisture. -hot water penetrate on the surface and with increasing of temperature penetration increase. -by expansion ,protein̕s membrane break. -starch granules massive , some part of starch molecules export from starch bulk , so the starch gelatinize .all this stages called the gelatinization process.
water absorption ability of gelatinized starch: starch can absorb water10 more than its weight .but actually there is less water in paste .we add 60-70 gr water to 100 gr flour .so its efficiency is 160-170 . 100 gr flour contain (60-70) gr starch .starch in paste contain 2/3 its weight water and it can absorb the water of gluten at the first of baking .so the the portion will be 1:1.the crumb will be dryer than paste because of water is only in all tin layer of starch parts( amilopectin) .actually the crumb contain the same water as paste.
APPLICATION :
starch is used as a raw material in food industry fields .in any field a special kind of it is proper .for dextrose and dexterin , glucose syrup is used as a filler and prevent from reaction between bicarbonate and acids before paste making .in sauce for reserve emulsion of oil and vinegar and other component , for prevent of separating of material .biscuit :in biscuit is used as a improvement textile and crispy , the control of PH .baking industry :before molding is used to prevent of sticking paste to mold. .soup :is used as a a thickness, viscosity .starch is used in industries like canned food , meat industry freeze food, cake ,coffee, ice cream , gum , additive food material , pharmacy.
packaged in 40 kg, bags.
Feature of Golmehr starch and compare it with standards
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Having quality management standard of ISO 9001-2000
Having certificate of Hazard Analysis and Critical Control Point ( HACCP)
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Standards of food starch
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