TITLE:
Variation in the Content of Cyanogenic Glycosides in Flaxseed Meal from Twenty-One Varieties
AUTHORS:
Roberto Russo, Remo Reggiani
KEYWORDS:
High Performance Liquid Chromatography, Linamarin, Linustatin, Neolinustatin, Flaxseed Meal
JOURNAL NAME:
Food and Nutrition Sciences,
Vol.5 No.15,
August
27,
2014
ABSTRACT: Flaxseed meal from twenty-one varieties has
been evaluated for content of cyanogenic glycosides (linamarin, linustatin and
neolinustatin). Varieties belonging to three different groups of productive
attitude (oil, fiber and intermediate) were considered. The total content of
cyanogenic glycosides ranged from 0.74 to 1.60 g?Kg?1 CN?. As expected, linamarin was a minority
component accounting for only 2% - 14% of total glycosides. Linustatin resulted
statistically lower in the intermediate group than that in the other groups and, in particular, it
was the lowest in the Festival variety. Neolinustatin resulted lower in the
fiber group although the variety Ventimiglia (belonging to oil group) showed a
negligible level of this compound. Neolinustatin was positively correlated to
total cyanogenic glycosides (r = 0.709) and inversely correlated to linustatin
(r = ?0.326). The variability observed
in the content of the various forms of glycosides could be exploited in breeding
programs to reduce the content of these toxic compounds in flaxseed meal.