| 摘要 |
FIELD: fat-and-oil industry, in particular, identification of flax seeds as to belonging thereof to high-linolenic flax sorts. ^ SUBSTANCE: method involves selecting flax seed samples; measuring temperature thereof and placing seed sample into sensor of pulsed nuclear magnetic resonance analyzer; measuring nuclear magnetic resonance characteristics of oil protons in flax seeds and calculating weighted average of spin time - spin relaxation (T2st) in milliseconds from formula: where N=3 - number of components in signal of nuclear magnetic resonance oil protons; Ai is amplitude of signal of nuclear magnetic resonance protons of i-component in percentage of total amplitude; T2i is time of spin-spin relaxation of protons of I component, said time being presented in milliseconds. Flax seeds are considered to refer to high-linolenic seed sorts when T2st < 1.2.t+83.7. ^ EFFECT: reduced time for identification of flax seeds, decreased damage to seeds, elimination of complicated sample preparing procedure and avoiding employment of chemical reactants. ^ 2 cl, 1 tbl |
