Chemical Composition of Saskatoon Berries (Amelanchier alnifolia Nutt.)

Authors

  • G. MAZZA

    1. At the time this research was done. Author Mazza was with the Alberta Horticultural Research Center, Brooks, Alberta TOJ OJO Canada. Dr. Mazza is now with Agriculture Canada Research Station, P.O. Box 3001. Morden, Manitoba ROG 1JO Canada.
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  • The author aclolowledges with thanks the cooperation of Dr. E.S. Redshaw and his staff, Alberta Agricultural Soil and Feed Testing Laboratory, Edmonton, for the ICP determinations.

ABSTRACT

Saskatoon berries, Amelanchier alnifolia, have been analyzed for moisture, soluble solids, protein, fat, fiber, Ca, P, S, K, Mg, Na, Fe, Mn, Cu, Zn, Ba, Mo, Al, and carotene content. The composition of saskatoon berries was compared to that of blueberries (Vaccinium sp.). There were significantly higher amounts of protein, fat, fiber, calcium, magnesium, manganese, barium, and aluminum, and lower contents of phosphorus and sulfur in Saskatoon berries than in blueberries. No significant difference in iron, zinc, sodium and carotene content was found between saskatoons and the other fruit. On a dry weight basis, saskatoons contained less sugars than blueberries. Although bioavailability of the minerals was not determined, saskatoons appear to be an excellent source of manganese, magnesium and iron and a relatively good source of calcium, potassium, copper, and carotene.

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