Describe the functionality of pectin, Biology

Assignment Help:

Functionality

Pectins are mainly used as gelling agents, but can also act as a  thickener, water binder and stabilizer. Low methoxyl pectins (<50% esterified) form thermoreversible gels in the presence of calcium ions and at low pH (3 - 4.5), whereas, high methoxy pectin's rapidly form thermally irreversible gels in the  presence of sufficient (e.g. 65% by weight) sugars, such as sucrose and at low pH (<3.5). The lower the methoxy content, the slower is the setting. The degree of esterification  can be reduced using commercial pectin methylesterase, leading to a higher viscosity and  firmer gelling in the presence of Ca2+ ions. Highly acetylated pectin from sugar beet is reported to have considerable emulsification ability due to its more hydrophobic nature, but this may be due to associated protein impurities.

 


Related Discussions:- Describe the functionality of pectin

Rules of nomenclature classification, Q. Rules of Nomenclature classificati...

Q. Rules of Nomenclature classification? The Rules of Nomenclature prescribed the categories into which plants should be classified. These categories constitute the units of cl

Draw format where carbon double bonded to an oxygen atom, How do you draw i...

How do you draw in organic chemistry format a carbon double bonded to an oxygen atom when this carbon is the first carbon on a carbon skeleton of a molecule?

Which compounds results from cyclization of glucose, Which of the following...

Which of the following compounds results from cyclization of glucose? Select one: a. alpha-D-glucopyronose b. beta-D-glucopyronose c. alpha-D-glucofuranose d. beta-D

What is neuroscience, What is Neuroscience? Theoretical, mathematical, ...

What is Neuroscience? Theoretical, mathematical, and computational approaches to queries in neuroscience are now recognized as valid by experimental physiologists. The main neu

Nursing management of rheumatic fever, Nursing Management The overall ...

Nursing Management The overall goals are that patient with RH fever will resume daily activities without Joint pain, reduce the risk of residual cardiac disease, and plan a

Explain hair changes - clinical signs of kwashiorkor, Explain Hair changes ...

Explain Hair changes - clinical signs of kwashiorkor? In kwashiorkor, the hair loses its healthy sheen and becomes silkier and thinner. It takes coppery red colour (referred to

What are the main respective constituents of cell walls in, What are the ma...

What are the main respective constituents of cell walls in bacteria, protists, fungi and plants? In bacteria the cell wall is made of peptidoglycans; between protists algae hav

State the types of brain trauma, State the types of brain trauma? There...

State the types of brain trauma? There are two main types of brain trauma a) open head injury and b) closed head injury

Distribution of stomata, Distribution of Stomata There are two paramet...

Distribution of Stomata There are two parameters normally used for expressing the distribution of stomata. Stomatal frequency: The number of stomata per unit area

First systematic theory in psychiatric nursing, First Systematic Theory in ...

First Systematic Theory in Psychiatric Nursing: Hildegard Peplau, one of the nurse-theorist, published a book on Interpersonal Relations  in Nursing (1952) and gave-the introd

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