TEL: +86-543-4891929
Categories
Contact Us
Add:Songfang Village, Taizi Town, Zouping County, Shandong Province, China
Tel:+86-543-4891929
Mob:+8615266790909
Fax:+86-543-4890929
E-mail:
Sales Dept.: sales@jucitrade.com
Shipping Dept.: stone@sdjuci.com
News
Home > News > Content
Chromotropic Acid Detection Of Corn Gluten Meal
Jul 18, 2018

Protein sperm (urea-formaldehyde polymers) are decomposed to produce formaldehyde under the action of sulfuric acid, and formaldehyde and chromotropic acid produce a purple substance. Starch, protein, sugar and ammonium do not interfere with this reaction. Take 0.1-0.2g samples in a dry 50ml beaker, add about 1ml chromotropic acid (1g/l concentrated sulfuric acid solution), in the electric stove carefully micro-heat to just produce micro-smoke, remove the beaker, add 10ml water, if the solution turns purple, then the sample contains protein essence, is a fake and inferior product.

  • Contact Us
    Add:Songfang Village, Taizi Town, Zouping County, Shandong Province, China
    Tel:+86-543-4891929
    Mob:+8615266790909
    Fax:+86-543-4890929
    E-mail:
    Sales Dept.: sales@jucitrade.com
    Shipping Dept.: stone@sdjuci.com
  • Categories
  • Copyright © Juci Corn Biotechnology Co.,Ltd All Rights Reserved.