Effect of Growth-Location and Length of Storage on Glycoalkaloid Content of Roadside-Stand Potatoes as Stored by Consumers
1983
Wilson, Ann M. | McGann, Deborah F. | Bushway, Rodney J.
Potato tubers were purchased from roadside stands at 25 locations in the State of Maine and were stored from 1 to 3 months under home storage conditions at 12.2°C. Initially and after 1 and 3 months of storage, tubers were analyzed for their α-chaconine, α-solanine and total glycoalkaloid (TGA) contents. Mean α-chaconine, α-solanine and total glycoalkaloid contents of the tubers ranged from 0.41 to 3.45, 0.35 to 1.51 and 0.75 to 6.16 mg/100 g of tuber (wet weight), respectively. Statistical analysis of the results indicated that the interaction of location and storage time had a significant (P<0.05) effect on concentration of the individual and total glycoalkaloids in the tubers. The results also demonstrated that storage under these suboptimum conditions did not cause an increase of glycoalkaloids to a toxic level.
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