Pelican Equipments
CIT Nagar, Chennai, Tamil Nadu
Send E-mail
Send SMS
Home»Introduction & Profile

Company Profile


Introduction & Profiles Our Customer Introduction & Profiles Genesis of our Success Story Early

Chemistry Of Crude Fibre

Crude fibre refers to the residue of a feed that is insoluble after successive,boiling with dilute acid and alkali. This method was originally proposed at the weende experiment station. Hence this method on determination of crude fibre is known as Weende s method of determination of crude fibre.

Crude fibre is the portion of the total carbohydrate of a food that is resistant to the acid and alkali treatment.

The Weende scheme of proximate analysis  is to separate the total carbohydrate into two categories viz. crude fibre and Nitrogen free extractives. Nitrogen free extractives represents the soluble sugar starches,glycogen,some fraction of hemicellulose and of course other water soluble components like water soluble vitamins etc.

As per Weende method, crude fibre is the fraction of carbohydrate that remains after treatment with acid and alkali.

Effect of acid and alkali treatment on a fat free food

Constituent

Treatment

Treatment

 

1.25% H2 SO 4

1.25 % NaOH

Protein

Partial extraction

Complete extraction

Starches and sugars

Hydrolysis and extraction

……….

Hemicellulose

variable extraction

Extensive but variable extraction

Cellulose

variable extraction

Extensive but variable extraction

Lignin extraction

slight

Extensive but highly


But this method any insoluble material after the acid and alkali digestion will be made up of (1)all original cellulose (2) variable proportion of hemicellulose (3) a small but highly variable portion of lignin.
 

Corporate Profile
Download Brochure
Pelican Equipments

S. Suseendran Samuel(Marketing Director)
No. 38, 2nd Floor, Burkit Road
CIT Nagar, Chennai - 600017
Tamil Nadu, India
Send Email
© Pelican Equipments. All Rights Reserved (Terms of Use)
Developed and Managed by IndiaMART InterMESH Limited