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!
Explain the Fermentability or Degradability?
As you are aware that colon contains over 400 known species of bacteria that exist in a symbiotic relationship with the host. All fibres are broken down to some extent by these microorganisms. Fermentation depends on the accessibility of the molecules to the microorganisms, which in turn depends on physical properties particularly solubility. Soluble fractions especially pectin, gums, mucilages and algal polysaccharides are very accessible and ferment rapidly. Insoluble fibre fraction ferment much more slowly. The first step in fermentation is the breakdown of polysaccharides, oligosaccharides and disaccharides to their monosaccharide subunits by hydrolytic enzymes of bacteria. Monosaccharides are further converted to various end products as seen in Figure.
Figure: Overview of carbohydrate fermentation on colon
According to the calculations by Cummings and Macfarlane, if approximately 20 g of fibre is fermented in the colon each day, 200 mM SCFA will be produced, of which 62% will be acetate, 25% propionate and 16% butyrate. Of these, butyrate is almost completely consumed by the colonic mucosa, while acetate and propionate enter the portal circulation. The mechanism by which SCFAs cross the colonic mucosa is thought to be a saturable process-passive diffusion of unionized acid into mucosal cells. In addition to these acids, other products of fibre fermentation are hydrogen, carbon dioxide and methane gases that are excreted as flatus or expired by the lungs.
how oviary work
Q. In general what is the phase of the menstrual cycle when copulation may lead to fecundation? Although this is not a rule, to be effective fecundation in general must occur w
Define Food Intake during Polar Expeditions? Observations made by Easty (1967) at Halley Bay, the British Antarctic survey base during 1961-62 expeditions indicate mean calorie
Q. Why are most ammoniotelic beings aquatic animals? Aquatic animals like crustaceans, amphibian larvae and bony fishes generally are ammoniotelic since ammonia diffuses more e
What is the radula? What is the function of this organ? Some molluscs have a tongue-like structure with harsh saliences similar to small teeth. This structure is called radula
Effects of Kwashiorkor on children Kwashiorker is an African word- it means displaced child. The child is weaned out very early and is given foods having high amounts of carboh
Define the Effects of Dietary Fibre? After reviewing the properties of fibre, we will now study various physiological effects of fibre, as it passes through the gut. The effect
Determine the major foot problem in diabetic patient The American Diabetic Association (ADA) has estimated that 50% of the limbs with foot ulcers can be saved if both the heal
GOLGI COMPLEX ( GOLGI APPARATUS = GOLGI BODY) The Nobel laureate, Camilla Golgi (1898) discovered the presence of a special, small group of interconnecting membranous s
Compare and contracte the phylum of ceolantrate
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