Define the functionality of cellulose, Biology

Assignment Help:

Functionality of cellulose

Cellulose has many uses as an anticaking agent, emulsifier, stabilizer, dispersing agent, thickener and gelling agent, but these are generally subsidiary to its most important use of holding water. Dry amorphous cellulose absorbs water becoming soft and flexible. Some of this water is non-freezing but most is  simply trapped. Less water is bound by direct hydrogen bonding if the cellulose has high crystallinity but some fibrous cellulose products can hold on to considerable water in pores and its  typically straw-like cavities. As such water is supercoolable, this effect may protect against ice damage. Cellulose can give improved volume and texture, particularly as a fat replacer in sauces and dressings but its insolubility means that all products will be cloudy. 

Swelled bacterial cellulose (eg. Acetobacter xylinum) exhibits pseudoplastic viscosity, like xanthan gels but this viscosity is not lost at high temperatures and low shear rates as the cellulose can retain its structure. Where individual cellulose strands are surrounded by water, they are flexible and do not present contiguous hydrophobic surfaces.

 


Related Discussions:- Define the functionality of cellulose

Define the obesity in children, Define the Obesity in Children? It is d...

Define the Obesity in Children? It is difficult to measure overweight or obesity in children and adolescents because they grow and mature at different rates. Weight status in c

Character displacement and ecological exclusion, Consider two species of or...

Consider two species of organisms, species A and species B. Species A has a population in a community. Another population species B arrives into the same community, rather suddenly

Hardy desert shrubs, Hardy desert shrubs - having short stem, number of br...

Hardy desert shrubs - having short stem, number of branches and thick leaves. The animals of deserts are primarily arthropods, reptiles, birds and mammals. Large animals are unc

How do grasslands differ from savannas, How do grasslands differ from Savan...

How do grasslands differ from Savannas? Name the two main categories of plant forms that dominate the desert vegetation.

Explain the importance of the auxin, a) How is the milk production regulate...

a) How is the milk production regulated by hormones in human female? Define. b) Explain the importance of the auxin / cytokinin ratio in plant tissue culture.

Dna vs protein, Describe the difference between dna and protein. (structura...

Describe the difference between dna and protein. (structural unit, linkage bond, primary and spatial structure)

Different stages involved in feeding patient - peptic ulcer, Q. Different s...

Q. Different stages involved in feeding patient - peptic ulcer? Stage I: It is characterized by haematemesis (vomiting of blood which may be derived from mouth, stomach, oesoph

Types of parthenocarpy, Types of Parthenocarpy Three types of Partheno...

Types of Parthenocarpy Three types of Parthenocarpy are generally recognized: Genetical Environmental, Chemically-induced. Genetical Parthe

Importance of research in nursing, Importance of Research in Nursing: ...

Importance of Research in Nursing: It is  the responsibility of the nursing profession  to discover, verify, structure and restructure the professional knowledge through  syst

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