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3.3.6 Mites and Nematode Worms
In the case that mites are found in stored medications, they are normally present in very large numbers up to 1.0 mm long.
Various mites that are found include Tyroglyphus siro (Cheese mite), Aleurobius farinae (Flour mite), and Glycyphagus spinipes
(Canthrides mite). Every one of these mites can be inspected microscopically by clearing the sample of powder containing
them with a chloral hydrate reagent. The best known cases of nematode worms are “Vinegar eel”—Turbatrix aceti, Anguillula
aceti
, Anguina tritici, which are found in wheat flour or in an herbal restorative item containing dull materials. These worms
are noticeable to the unaided eye as moving strings, consistently twisting and curving in the medium they possess.
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