Total glycoalkaloid and mineral content of potatoes grown in soils amended with sewage sludge

The effects of large amounts of sludge application, particularly on the total glycoalkaloid (TGA) content and the overall mineral content of potatoes were determined. Katahdin potato tubers were washed, dried and stored at 5C in the dark for six months before analysis. The results showed that while...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 1984-11, Vol.32 (6), p.1256-1260
Main Authors: Mondy, Nell I, Naylor, Lewis M, Phillips, Janet C
Format: Article
Language:English
Subjects:
Biological and medical sciences
Food industries
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
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Summary:The effects of large amounts of sludge application, particularly on the total glycoalkaloid (TGA) content and the overall mineral content of potatoes were determined. Katahdin potato tubers were washed, dried and stored at 5C in the dark for six months before analysis. The results showed that while the TGA content of potatoes grown on sludge amended soil was not significantly different from that of controls, there were significant differences in the trace metal content. Tubers grown on sludge amended soil contained less potassium and more magnesium than controls and the levels of boron, cadmium, copper, nickel and zinc were increased. Aluminium and sodium levels decreased. The remaining minerals studied showed no significant changes. A bibliography of 37 references is appended.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf00126a012