Explain dough formation, Biology

Assignment Help:

Explain Dough Formation  

Gluten is the protein found in wheat. A unique property of gluten proteins of wheat grain endosperm (and  to  a   lesser extent of rye and  barley  grains)  is  their ability  to   form a strongly cohesive and  viscoelastic  mass  or dough,  when  mixed and kneaded in presence of  water  at  ambient temperature. In addition to glutens (gliadin and glutenins), wheat flour contains starch granules, pentosans, polar and non polar lipids and soluble proteins, all of which contribute to the formation of dough  network and/or the final texture of bread.

Composition and large size of gliadins  and glutenins explain much of the behaviour of gluten.  Due to their low content of ionizable amino acids, the gluten proteins are poorly soluble in neutral aqueous solutions. Rich in glutamine (>33% by wt.) and in hydroxy amino acids, they are prone to hydrogen bonding  which accounts  largely  for  water  absorbing capacity and for the cohesion and adhesion properties of gluten. Latter  properties also  derive in part from the presence of many apolar  amino acids and  the  resulting hydrophobic interactions that  contribute  to protein  aggregation  and binding of  lipids  and  glycoproteins. Finally,  the  ability of forming numerous  -S-S-  cross  linkages accounts  for  the  ease  with  which  these  proteins  interlink tenaciously in dough.

 


Related Discussions:- Explain dough formation

Was there molecular oxygen in the earths primitive atmospher, Was there mol...

Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become abundant? The presence of the molecular oxygen in the primitive atmosphere was prob

What does balanced diet means, What does Balanced Diet means Balanced D...

What does Balanced Diet means Balanced Diet means diet which contains a variety of foods in such quantities and proportions that the need for energy, proteins, vitamins, minera

Explain dietary assessment criteria for vitamin a, Explain Dietary Assessme...

Explain Dietary Assessment Criteria for Vitamin A? Several methods can be adopted for the dietary assessment of vitamin A such as food frequency, weekly or 3 day food weighmen

Functions of respiratory pigments, Functions of Respiratory Pigments A...

Functions of Respiratory Pigments As you have learnt in the preceding sub-sections, the pigments are the carrier of oxygen. In the nonexistence of respiratory pigments the blo

What is crf annotation checklists, Question 1: Highlight the salient...

Question 1: Highlight the salient features of eTrials EDC. Explain briefly what is eTrials EDC Describe the salient features of eTrials EDC in comparison with other ED

BIOLOGY, 100 WORDS NOT COMPLETED

100 WORDS NOT COMPLETED

#title.ehr, Why have biologists and bioinformaticians embraced the Web as a...

Why have biologists and bioinformaticians embraced the Web as a vehicle for disseminating data so quickly, whereas clinicians and clinical informaticians have been more hesitant to

State about the neuropsychological assessment, State about the Neuropsychol...

State about the Neuropsychological assessment Neuropsychological assessment provides information concerning the status of brain function across the life span. It does so primar

Do the membranes form only the outer wrapping of cells, Q. Do the membranes...

Q. Do the membranes form only the outer wrapping of cells? Lipid membranes do not form only the outer cover of cells. Cell organelles, such as the Golgi complex, lysosomes, chl

What is density-dependent and density-independent factors, What is Density-...

What is Density-dependent and density-independent Factors? Density-dependent : Ecologists identify population-regulating mechanisms whose functioning is related to density a

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