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!
Changes In Gluten Proteins During Dough Formation
Initially, gluten is formed when flour and water are mixed together. The proteins in the flour, glutenin and gliadin cross link, using water as a vehicle to form gluten. Enhancing this gluten structure is important relative to developing a gas retaining structure in the chapati/bread. When the hydrated bread flour is mixed and kneaded, the gluten proteins orient themselves aligns and partially unfolded. This enhances hydrophobic interaction and formation of disulphide bridges through -S-S- interchange reactions. A 3-dimensional viscoelastic protein network is established, as the initial gluten particles transform into this membrane (film), thus serving to entrap starch granules and other flour components. Cleavage of disulphide bridges by reducing agents such as cysteine, destroys the cohesive structure of hydrated gluten and bread dough ; the addition of agents such as bromates, increase toughness and elasticity. "Strong" flours from certain wheat varieties require long mixing time and give very cohesive dough. "Weak flours" are less effective and gluten network breaks down when the energy or duration of mixing exceeds a certain level, probably because of -S-S- bonds are ruptured (especially in absence of air).
Dough strength appears to be related to a large content of high molecular weight glutenins including totally insoluble "residue proteins". From experiments with "reconstituted" wheat flours of varying gliadin and glutenin ratios, it can be postulated that the glutenins are responsible for the elasticity, cohesiveness and mixing tolerance of dough whereas gliadins facilitate fluidity, extensibility and expansion of the dough, thus contributing to a larger bread loaf volume. A proper balance of the proteins is essential for bread making. Excessive cohesion (glutenins) inhibit \the expansion of trapped CO2 bubbles during fermentation, the rise of the dough and the subsequent presence of open air cells in the bread crumb. Excessive extensibility (gliadins) results in gluten films that are weak and permeable; thus retention of CO2 is poor and dough collapse may occur.
Q. What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron an
Plants and animals The activity of living organisms like lichens, fungi, bacteria, blue green algae, bryophytes is also responsible for weathering. It is referred to as biolog
What are Pure Culture Techniques? Microorganisms can be isolated from various natural environments like soil, food, water, sewage, decomposing matter and even from infectious m
To study if bacteria grow better where it is dark or light Inoculate two sterile dishes as before. Label one 'dark' and the other 'light'. Place the 1st dish in a darkwarm plac
simpson''s index
Avian reovirus infections There are several avian reoviuses isolated from chicken, turkey and other species of birds. They are associated with arthritis (tenosynovitis), respir
Anaplerotic Reactions Anaplerotic reactions are reactions that replenish the intermediates of citric acid cycle. The special enzymatic mechanisms by which the pool
Why is the cerebellum more developed in mammals that jump or fly? The cerebellum is the major brain structure that coordinates the movement and the equilibrium of the body. For
Define the Clinical success for the Root Canal Treatment a) Absence of pain and swelling. b) Disappearance of sinus tract. c) No evidence of soft tissue destruction, incl
S y s te m i c Diseases Diseases of the gastrointestinal tract The diseases of gastrointestinal system are manifested by abnormality in prehension, mastication and s
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