Page 344 - Applied Pharmacognosy

Problems of UTnypreegs uoflaCtheedmHicearlbmaal rDkreursgs
 DeteriorationofHerbalDrugs
Mites & Nematode worms

 Iffoundinstoreddrugs,mitesareusually
present in countless numbers including
cheesemiteandflourmite.

 All these mites can be examined
microscopically byclearingthesampleof
powdercontainingthem withchloralhydrate
reagent.

 Wormscanbefoundin wheatflour orin

crude drugs containing starchy materials.

These wormsarevisible totheunaidedeye

as minute threads continually curling and

twistinginthemedium theyinhabit.