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Variability in arabinoxylan, xylanase activity and xylanase inhibitor levels in hard spring wheat.

Author:
Mendis, Mihiri, Ohm, Jae-Bom, Delcour, Jan A., Gebruers, Kurt, Meinhardt, Steven, Simsek, Senay
Source:
Cereal Chemistry 2013 v.90 pp. 240
ISSN:
0009-0352
Subject:
Triticum aestivum, arabinoxylan, bran, enzyme activity, enzyme inhibitors, food processing, genotype, genotype-environment interaction, grain foods, hard red spring wheat, hard white wheat, spring wheat, xylanases
Abstract:
Arabinoxylans (AX), xylanase, and xylanase inhibitors have an important role in many cereal food processing applications. The effect of genotype (G), growing location (L), and their interaction (G*L) on AX, apparent xylanase and apparent xylanase inhibition activities of Triticum aestivum xylanase inhibitor (TAXI) and xylanase inhibiting protein (XIP) was investigated for six hard red and six hard white spring wheat genotypes grown at three locations. Variability in total AX content was largely dependent on G*L. For bran xylanase activity, 25% of the variability could be attributed to G*L interaction. Genotype contributed 72% to the variability in TAXI activity and 39 % in XIP. These results indicate that TAXI might be a stable parameter in segregating wheat genotypes with varying xylanase activity.
Agid:
58102
Handle:
10113/58102