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Degradation of the Potato Glycoalkaloids - α-Solanine and α-Chaconine in Groundwater

Author:
Jensen, Pia H., Jacobsen, Ole S., Henriksen, Trine, Strobel, Bjarne W., Hansen, Hans Christian B.
Source:
Bulletin of environmental contamination and toxicology 2009 v.82 no.6 pp. 668-672
ISSN:
0007-4861
Subject:
alpha-chaconine, biodegradation, groundwater, microorganisms, potatoes, soil, solanidine
Abstract:
The potato glycoalkaloids α-chaconine and α-solanine are produced in high amounts in potato plants from where release to soil takes place. Degradation of the compounds in groundwater was investigated, as their fate in the terrestrial environment is unknown. Abiotic and microbial degradation were followed in groundwater sampled from below a potato field and spiked with the glycoalkaloids (115 nmol/l). Degradation was primarily microbial and the glycoalkaloids were degraded within 21-42 days. The metabolites β₁-solanine, γ-solanine, and solanidine were formed from α-solanine, while β-chaconine, γ-chaconine and solanidine were detected from α-chaconine. Thus, indigenous groundwater microorganisms are capable of degrading the glycoalkaloids.
Agid:
635477