Starch analysis: Difference between revisions - Wikipedia

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{{see also|Microscopy}}

[[File:Stärkemehl 800 fach Polfilter.jpg|thumb|right|Starch, 800x magnified, under polarized light, showing characteristic [[extinction cross]]]]

Starch grains are typically microscopically identified with either optical or electron microscopy. Starch grains can become clearer if they are stained a darker color with [[Iodine]] Stains. Logol's Iodine is one, used for [[staining]] starch because iodine reagents easily bind to starch but less easily to other materials. Features that allow identification of starch grains include: presence of hilum (core of the grain), lamellae (or growth layers), birefringence, and extinction cross (a cross shape, visible on grains under revolving polarized light) which are visible with a [[microscope]]<ref>http://clarissacagnato.weebly.com/starch-grain-analysis.html </ref> and shape and size.

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==See also==

* [[Starch]]

Haslam, Michael, Gail Robertson, Alison Crowther, Sue Nugent and Luke Kirkwood, editors. 2011. Archaeological Science Under a Microscope (Terra Australis 30) Studies in Residue and Ancient DNA Analysis in Honour of Thomas H. Loy. ANU E Press.