Starch Grains

Dublin Core

Title

Starch Grains

Subject

Starch grains

Description

Starch grains procured from artefact residues, archaeological sediments, and modern plant samples.

Source

McMaster Paleoethnobotanical Research Facility

Creator

S. Prado

Collection Items

Triticum dicoccum (Emmer)
Circular/ovoid starch grain, lenticular in side view. Radially symmetrical extinction cross.

Supporting literature:
Henry, A.G., Hudson, H.F., and Piperno, D.R. 2009. Changes in starch grain morphologies from cooking. Journal of Archaeological…

Quercus sp. (Oak)<br /><br />
<br /><br />
(acorn)
Ovoid starch grains. Eccentric hilum and extinction cross. Small, natural fissure at the hilum.

Supporting literature:
Weber, S. and Price, M.D. 2016. What the pig ate: a microbotanical study of pig dental calculus from 10th-3rd millennium BC…

Hordeum vulgare (var. Bere) (Barley)
Round/oval shape starch grains - lenticular in side view. Multiple beta granules (transitory starch - small grains) present. Few lamellae visible, particularly with the larger grains. Hilum is central and closed, extinction cross "very distinct and…

Avena sativa
Faceted starch grains, approximately 5 microns in size with clear extinction crosses, centric hilum (diagnostic)

Cicer arietinum (Chickpea)
Non-lenticular ovoid to spherical starch grains. Approximately 12 - 15 microns in this sample. Fissure was often present (mesial longitudinal cleft) and lamellae were visible. Extinction cross is bilaterally symmetrical, with diffuse center, some…

Lens culinaris (Lentil)
Ovoid and sometimes kidney shaped or reniform starch grains. Non-lenticular, often with a central (mesial longitudinal cleft) fissure (both light/shallow and deep present). Lamellae were visible and the surface appeared wrinkled. Starch grains…

Pisum sativum (Pea)
Ovoid and/or elongated, non-lenticular starch grains. Lamellae sometimes visible (med-large grains), central fissure (mesial longitudinal cleft fissure) and wrinkled surface common. Extinction cross is central, "often elongated on the same axis as…

Typha latifolia (Bulrush)
Non-lenticular starch grains, ovate/circular in form. Hilum appears to be central, bowed X shape extinction cross. Starch grains averaged 6 - 10 microns in this sample.

Vicia faba (Broad Bean)
Non-lenticular ovate starch grains. Fissures are present and lamellae are rarely visible. Starch grains in this sample averaged 10 - 20 microns.

Triticum monococcum (Einkorn)
Circular/ovoid starch grain, lenticular in side view. Radially symmetrical extinction cross.

Supporting literature:
Henry, A.G., Hudson, H.F., and Piperno, D.R. 2009. Changes in starch grain morphologies from cooking. Journal of Archaeological…
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