Premium
Preliminary studies on the effects of copper, iron and manganese ions on the degradation of 3‐indolylmethylglucosinolate (a constituent of Brassica spp.) by myrosinase
Author(s) -
Searle Linda M.,
Chamberlain Keith,
Butcher Dennis N.
Publication year - 1984
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740350709
Subject(s) - manganese , chemistry , myrosinase , copper , metal ions in aqueous solution , degradation (telecommunications) , metal , ion , nuclear chemistry , formaldehyde , biochemistry , food science , inorganic chemistry , organic chemistry , biology , botany , telecommunications , computer science , glucosinolate , brassica
Copper (I and II) and iron (II and III) ions had qualitatively similar effects on the degradation of radiolabelled 3‐indolylmethylglucosinolate. In the presence of myrosinase they increased the production of 3‐indolylacetonitrile (IAN) largely at the expense of ascorbigen (ASC). With the addition of these metal ions the ratio of IAN to the products of the alternative pathways (3,3′‐diindolylmethane, ASC and formaldehyde) decreased as the pH increased from 4 to 7. These ions also led to a small increase in the non‐enzymic production of IAN.