Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Starch gelatinization
Undamaged starch granules are insoluble in cold water but can imbibe water reversibly i.e. they can swell slightly and then return to their original size on drying, when starch is heated with excess of water, the molecular order of the granule is gradually and irreversibly destroyed at the gelatinisation temperature, which is approximately in the range of 60-70°C for most of the starches. Amylose is preferentially leached out of the network and gets solubilized, however, some leaching of amylose can also occur prior to gelatinization. When further heated, starch granules are disrupted and partial solubilization is achieved. Total gelatinization usually occurs over a temperature range with larger granules generally gelatinizing first. At temperatures below 100° C, true molecular solution is not achieved and the swollen hydrated granules consisting of mainly amylopectin remain. Continued heating of starch granules in excess water results in further granule swelling, additional leaching of soluble components (primarily amylose) and eventually, total disruption of granules especially with the application of shear forces,. This phenomenon results in the formation of a starch paste. The melting temperature of the crystallites is 190°C. Gelatinization is an endothermic process (10 mJ/mg), i.e. a chemical reaction accompanied by the absorption of heat.
Q. Cnidarian identity card. How are they characterized according to instance of representing beings, basic morphology, kind of symmetry, germ layers and coelom, digestive system, r
NEUROGLI A CELLS (Rudolf Virchow, 1846) - Occurs in the C.N.S. The cells are less than neurons. Neuroglia cells are of four types - (i) Oligodendrocytes - Occ
ornamental fishes of india
Explain the Solid-Liquid Equilibria? A freezing-point curve (freezing point as a function of liquid composition) and a solubility curve (composition of a solution in equilibriu
write the raspiration of different types of animals of different phylum
why should shivering contribute to heat gain in the body?
Protein Digestion Enzymes that digest proteins are divided into two groups endopeptidases and exopeptidases according to site of their action in the protein molecule. Endopept
Results of Mitral Valve Replacement: The risk of mitral valve replacement is reported as 3-5 per cent. It also depends on multiple factors like age, functional clas
Define Miscellaneous Functions of Protein? Besides the functions enumerated above certain other important miscellaneous functions of proteins are included herewith. These inclu
Q. How do you define Normal Pulmonary Vasculature? Pulmonary vessels are seen in the medial 2/3 of the lung. Vessels are generally not identified in the lateral third. The rad
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd