Define starch gelatinisation, Biology

Assignment Help:

Starch Gelatinisation

Starch is insoluble in cold water but in warm water it swells until its gelatinization temperature begins to lose its structure and leaches out its  8constituents. This act of converting into a  substance like jelly is called gelatinization.

Gelatinization is a phenomenon which takes place in the presence of heat and moisture. Cooking the starch to 1000 C disrupts H-bonding and causes swelling of the granule and solubilization of the constituent starch polymers. The suspension increases in viscosity, becomes less opaque and eventually forms a paste. This process is referred to as gelatinization. During gelatinisation, water is absorbed and as  a result, the starch granule swells irreversibly to several times of its size.  

 


Related Discussions:- Define starch gelatinisation

Define the term - peroxisomes and glyoxisomes, Peroxisomes and Glyoxisomes ...

Peroxisomes and Glyoxisomes A number of metabolic reactions, such as, the oxidation of amino acids and lipids result in the production of hydrogen peroxide. As hydrogen peroxid

Examples on some plants species, examples on woody perennial Angiosperm spe...

examples on woody perennial Angiosperm species and herbaceous annual angiosperm species. thanks

How are the female gametes of gymnosperms formed, Q. How are the female gam...

Q. How are the female gametes of gymnosperms formed? What is the relationship between this process and the concept of alternation of generations? In the female strobiles (cones

Assessment of regional wall motion abnormality, Q. What is Regional wall mo...

Q. What is Regional wall motion abnormality? Ans. A critical occlusion of a coronary artery leads to myocardial ischemia which is manifested as regional wall motion abnorm

What are autotrophic beings? what are heterotrophic beings, What are autotr...

What are autotrophic beings? What are heterotrophic beings? The Autotrophic beings are those that can produce their own food that is that make organic material from inorganic c

What is the usual reproduction cycle of a dna virus, Q What is the usual re...

Q What is the usual reproduction cycle of a DNA virus? A usual virus has proteins on its capsid that bind to the outer membrane of the host cell. In the place where the virus a

Male reproductive system - seminal vesicles, SEMINAL VESICLES (UTERUS MESCU...

SEMINAL VESICLES (UTERUS MESCULANIS) - Seminal vesicles are elongated, convoluted, musculo glandular sac about 4 cm long ( 9 cm if straightened). Lined by pseudostratified e

Are nematodes triploblastic or diploblastic animals, Q. Are nematodes tripl...

Q. Are nematodes triploblastic or diploblastic animals? Just like platyhelminthes, nematodes are triploblastics that is they present three germ layers (ectoderm, endoderm and m

Define physiological effects on the git of prebiotics, Define Physiological...

Define Physiological effects on the GIT of prebiotics? Since prebiotics are fermented by the gut microflora, they may have physiological effects on the GIT such as: Cont

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd