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

Cell cycle, What can stop a normal cell from growing?

What can stop a normal cell from growing?

Nursing assessment of thalassemia patient, Nursing Assessment  If you ...

Nursing Assessment  If you observe a child of thalassemia major you can identify the following clinical  manifestations:  Anaemia with haemoglobin level of 3 to 8 gm per ce

How physical activity affect requirement of protein, How Physical Activity ...

How Physical Activity affect requirement of protein? Research on protein needs for muscular work had its beginning in 1863 when Von Leiberg postulated that muscle protein was d

Carbohydrate requirement during congestive cardiac failure, Q. Carbohydrate...

Q. Carbohydrate requirement during congestive cardiac failure? While the quantity of carbohydrate remains almost the same as per the RDI i. e, 60% of the total energy, the qual

How the average number of offspring raised to adulthood, Researchers (Helle...

Researchers (Helle et al., 2004) analyzed rates of twin births in the Sami population of Northern Scandinavia during the eighteenth and nineteenth centuries. They found that (1) a

Female reproductive system, FEMALE REPRODUCTIVE SYSTEM - In female mamm...

FEMALE REPRODUCTIVE SYSTEM - In female mammals the female reproductive system characteristically comprises of the ovary, uterus, placenta, vagina and vulva.

Theory of embryology - germ layer theory , GER M LAYER THEORY - Propos...

GER M LAYER THEORY - Proposed by Pander, studied chick embryo development. Coined the term ectoderm, mesoderm & endoderm.

Explain strengthening the public health measures - anaemia, Explain Strengt...

Explain Strengthening the public health measures? Parasitic infestations and protozoal infections cause iron deficiency through loss of blood or destruction of red blood cells.

Why protein requirements of athletes get increased, Why Protein requirement...

Why Protein requirements of athletes get increased? Protein requirements of athletes, particularly those engaged in strength and power events, may be increased above those of s

Why and how does the food get spoiled, Why and how does the food get spoile...

Why and how does the food get spoiled? There are several causes of food spoilage. These include: Growth of Microorganisms, such as bacteria, molds and yeasts, which can

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