Publications by authors named "Evi Croes"

Necro-hemorrhagic enteritis in calves, caused by Clostridium perfringens type A, is a fatal disease, mostly affecting calves in intensive rearing systems. The lack of development of active immunity against α toxin, an essential virulence factor in the pathogenesis, has been proposed as a main trigger. In this experimental study, the effect of a set of milk replacer components on α toxin production, and the effect of lactose on in vivo antibody production, were investigated.

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Wheat contains three different classes of proteinaceous xylanase inhibitors (XIs), i.e. Triticum aestivum xylanase inhibitors (TAXIs) xylanase-inhibiting proteins (XIPs), and thaumatin-like xylanase inhibitors (TLXIs) which are believed to act as a defensive barrier against phytopathogenic attack.

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Wheat contains high levels of the three classes of xylanase inhibitors (XIs), Triticum aestivum xylanase inhibitor (TAXI), xylanase-inhibiting protein (XIP) and thaumatin-like xylanase inhibitor (TLXI). These proteins have been linked to plant defense. In this study, expression of XIs during wheat ear development and germination was examined using immunoblotting.

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Wheat grains contain three classes of xylanase inhibitors (XIs), i.e. TAXI (Triticum aestivum xylanase inhibitor), XIP (xylanase inhibiting protein) and TLXI (thaumatin-like xylanase inhibitor).

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In wheat ( Triticum aestivum ) grains, TAXI- (T. aestivum xylanase inhibitor), XIP- (xylanase inhibiting protein), and TLXI-type (thaumatin-like xylanase inhibitor) xylanase inhibitors (XIs) are expressed in considerable levels and under different forms. As these proteins have a significant impact on microbial xylanases frequently used in cereal-based biotechnological processes, knowledge of their quantitative and qualitative variability in wheat is of great interest.

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The impacts of the arabinose to xylose (A/X) ratio of arabinoxylans (AX) and the endoxylanase substrate specificity on the enzymic degradability of hull-less barley flour AX by endoxylanases were studied by using alkali-solubilized AX (AS-AX) fractions with different A/X ratio, on the one hand, and glycoside hydrolase family 10 and 11 endoxylanases of Aspergillus aculeatus (XAA) and Bacillus subtilis (XBS), respectively, on the other hand. AS-AX were obtained by saturated barium hydroxide treatment of hull-less barley flour water-unextractable AX. Fractionation of AS-AX by stepwise ethanol precipitation resulted in structurally different hull-less barley flour AS-AX fractions.

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