Friday, May 6, 2011

what happened to Glass Ash ?

Till  2008, the Glass Ash testing method or the sedimentation method was the only means to check the quality of gambier.

Procedure of the Sedimentation method goes like this.... gambier samples are boiled with 4 times water and poured to a beaker, the sediment percentage is then calculated.

Importers/Exporters/collectors think that the low the sedimentation level means more the catechin and hence more yield. or lower percentage of sedimentation means the less gambier is adulterated.

This method lost its popularity, as farmers started mixing water soluble adultants in gambier, like "rock salt"

Some Indian Traders at Kanpur Markets are still testing their gambier by glass ash method as their quality norms for trading.

By scientific tests, it has been proved that the amount of ash percentage does not determine the amount of catechin.
 "a low glass ash cargo can have  low catechin and a high glass ash can have high catechin as well"

Catechin percentage had become the key quality parameter for the business now.


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