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Article Dans Une Revue Journal of Cereal Science Année : 2005

Variation in the levels of the different xylanase inhibitors in grain and flour of 20 French wheat cultivars

Résumé

A xylanase from Aspergillus aculeatus (glycoside hydrolase family 10), uninhibited by TAXI, and a xylanase from Bacillus subtilis (family 11), uninhibited by XIP-I, were selected to quantify the respective apparent levels of XIP-I and TAXI inhibitors, in flours and grains of 20 wheat varieties. The apparent TAXI amount ranged from 0.05 to 0.19 mg/g in flour (mean: 0.11 mg/g) and from 0.07 to 0.2 mg/g in grain (mean: 0.14 mg/g). The range observed for XIP-I was 0.12-0.6 mg/g in flour (mean 0.32 mg/g), and 0.21-0.56 mg/g in grain (mean: 0.41 mg/g). The inhibition profile of the xylanase from A. aculeatus by a crude inhibitor preparation suggested the presence of an additional component in wheat flour, responsible for an increase in inhibition.

Dates et versions

hal-02679017 , version 1 (31-05-2020)

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Citer

Estelle Bonnin, Stéphanie Daviet, Kurt Gebruers, Jan A. Delcour, Andrew Goldson, et al.. Variation in the levels of the different xylanase inhibitors in grain and flour of 20 French wheat cultivars. Journal of Cereal Science, 2005, 41 (3), pp.375-379. ⟨10.1016/j.jcs.2004.11.001⟩. ⟨hal-02679017⟩

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