Titre du document / Document title

Structural and compositional characteristics of canaryseed (Phalaris canariensis L.)

Auteur(s) / Author(s)

ABDEL-AAL E.-S. M. ⁽¹⁾ ; HUCL P. J. ⁽¹⁾ ; SOSULSKI F. W. ⁽²⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Crop Development Centre, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan, S7N 5A8, CANADA
⁽²⁾ Department of Crop Science and Plant Ecology, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan, S7N 5A8, CANADA

Résumé / Abstract

Canaryseed (Phalaris canariensis L.) has small elliptical grains with hulls, which are covered with very fine silicious spicules that are severe skin irritants and potentially carcinogenic. Because chemical treatments and a glabrous genotype are now available for eliminating the spicules, the chemical composition of the dehulled groat was determined to evaluate its potential food and industrial applications. Canaryseed groats contained 61.0% starch, which comprised small polygonal granules with diameters of 1.5-3.5 μm. The groats averaged 18.7% protein compared to 15.0% in wheat, and the proportions of prolamin and glutelin in the protein averaged 77.7%, exceeding that in the control wheat protein of 73.5%. Canaryseed proteins were more deficient in lysine and threonine than wheat proteins but were very rich in cystine, tryptophan, and phenylalanine. For a cereal, canaryseed groats were very high in crude fat, 8.7%, and purified total lipid, 11.0%, containing 55% linoleic, 29% oleic, 11% palmitic, and 2.5% linolenic acids. The groat and roller-milled flours were low in dietary fiber, soluble sugars, and total ash. The composition of small granule starch and gluten-like proteins, rich in tryptophan, suggests unique functional and nutritional properties for canaryseed groats.

Revue / Journal Title

Journal of agricultural and food chemistry   ISSN 0021-8561   CODEN JAFCAU 

Source / Source

1997, vol. 45, n^o8, pp. 3049-3055 (18 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Chemical Society, Washington, DC, ETATS-UNIS  (1953) (Revue)

Mots-clés anglais / English Keywords

Phalaris canariensis ; Cereal ; Chemical composition ; Cereal crop ; Gramineae ; Monocotyledones ; Angiospermae ; Spermatophyta ;

Mots-clés français / French Keywords

Phalaris canariensis ; Céréale ; Composition chimique ; Plante céréalière ; Alpiste des Canaries ; Gramineae ; Monocotyledones ; Angiospermae ; Spermatophyta ;

Mots-clés espagnols / Spanish Keywords

Phalaris canariensis ; Cereal ; Composición química ; Planta cerealista ; Gramineae ; Monocotyledones ; Angiospermae ; Spermatophyta ;

Localisation / Location

INIST-CNRS, Cote INIST : 7332, 35400006899331.0400