What is the fuction of starch, Biology

Assignment Help:

What is the fuction of Starch

Starch is the main thickener in gravies, sauces and puddings. Starch absorbs water, and  becomes a gel when cooked. As the starch swells up with water, the amylose leaches out, and the amylopectin forms the gel. Some starches have higher amylopectin content, and make better gels than those containing lots of amylose. Remember, higher the amylose  content lower is the swelling power and smaller is the gel strength for the same starch concentration. As a thickener (as opposed to a gel) it is the amylose that has the main function. The long  water-soluble chains increase the viscosity, which does not change much with change in temperature. Amylose chains tend to curl up into helices (spirals) with the hydrophobic parts inside. This allows them to trap lipids (oils and fats) molecules inside the helix, as well as aroma molecules.

 


Related Discussions:- What is the fuction of starch

Sastry, he heartbeat begins with the depolarization of the

he heartbeat begins with the depolarization of the

Illustrating how neuropsychologists evaluate young children, Illustrating h...

Illustrating how neuropsychologists evaluate young preschool children, older children, youngster adults, and elderly adults. The brain is an evolving organ and functions very

Limerick, how do we write a limerick spell?

how do we write a limerick spell?

What is the rh typing of the mother, What is the Rh typing of the mother an...

What is the Rh typing of the mother and of the fetus in the hemolytic disease of the newborn? In the hemolytic disease of the newborn the mother is Rh- and the fetus Rh+. In th

What is the function of the secretions of the prostate, What is the functio...

What is the function of the secretions of the prostate, seminal vesicle and bulbourethral glands in reproduction? These secretions with sperm cells from the testicles form the

When aflatoxigenic molds can occur, Q. When Aflatoxigenic molds can occur? ...

Q. When Aflatoxigenic molds can occur? Occurrence: Aflatoxigenic molds can occur in warmer parts of the world and aflatoxicosis maybe produced in a wide range of tropical and s

Is the edible part of the onion a fruit, Are fruits always the flesh part o...

Are fruits always the flesh part of the "fruits"? Is the edible part of the onion a fruit? In some so-called fruits the actual fruit is not the flesh part. For instance, the fl

Can you explain ventricular septal defect, Q. Can you explain Ventricular S...

Q. Can you explain Ventricular Septal Defect? VSD can be found in various part of ventricular septum hence all possible views except suprasternal views are used to detect an

Determine the effect of drug on the blood pressure of rats, A scientist wan...

A scientist wanted to study the effect of a drug on the blood pressure of rats. She set up an experiment in which the experimental group consisted of rats that were injected with a

Respiration in animals, Respiration Robert Boyel and Robert Hook fir...

Respiration Robert Boyel and Robert Hook first of all explained the meaning of respiration. Main aim of respiration is to liberate energy in the form of A.T.P. Oxidati

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