Classification of wheat varieties based on structural features of arabinoxylans as revealed by endoxylanase treatment of flour and grain
| Autor: | Luc Saulnier, Marie-Françoise Devaux, José Juan Ordaz-Ortiz |
|---|---|
| Přispěvatelé: | Unité de recherche sur les Biopolymères, Interactions Assemblages (BIA), Institut National de la Recherche Agronomique (INRA) |
| Rok vydání: | 2005 |
| Předmět: |
0106 biological sciences
Arabinose Flour Wheat flour Biology Polysaccharide 01 natural sciences Endosperm chemistry.chemical_compound 0404 agricultural biotechnology Cell Wall Polysaccharides Arabinoxylan [SDV.IDA]Life Sciences [q-bio]/Food engineering Grain quality ComputingMilieux_MISCELLANEOUS Triticum 2. Zero hunger chemistry.chemical_classification Trichoderma ENZYMATIC FINGERPRINTING MULTIVARIATE ANALYSIS CEREAL CELL WALL HPAEC Endo-1 4-beta Xylanases Trichoderma viride food and beverages 04 agricultural and veterinary sciences General Chemistry biology.organism_classification 040401 food science Xylan chemistry Biochemistry ARABINOXYLANE POLYSACCHARIDES PARIETAUX DEGRADATION ENZYMATIQUE EMPREINTE ENZYMATIQUE VARIATION ANALYSE MULTIVARIEE CHROMATOGRAPHIE CEREALE Xylans General Agricultural and Biological Sciences Edible Grain 010606 plant biology & botany |
| Zdroj: | Journal of Agricultural and Food Chemistry Journal of Agricultural and Food Chemistry, American Chemical Society, 2005, 53 (21), pp.8349-8356. ⟨10.1021/jf050755v⟩ |
| ISSN: | 0021-8561 1520-5118 |
| DOI: | 10.1021/jf050755v⟩ |
| Popis: | Arabinoxylans (AX) are cell wall polysaccharides of complex structure involved in many aspects of wheat flour end uses. The study of the variations of AX structure can lead to the identification of genes involved in their biosynthesis, and thus in the control of the various aspects of grain quality related to their presence. A method is proposed to identify AX variations directly in whole grain by enzymatic degradation. An endoxylanase from Trichoderma viride was used to extract AX from a collection of 20 wheat cultivars (Triticum aestivum L.). Enzymatic degradation products were analyzed by HPAEC and multivariate analysis techniques (principal component analysis, canonical correlation analysis, and cluster analysis) were applied to analyze chromatographic data. The method evidenced variations in the proportion of mono- and disubstitution of the xylan backbone by arabinose side chains, allowing classification of the different varieties according to the structural features of AX. A similar classification was obtained starting from flour or whole grain, indicating that the method was specific of AX from endosperm tissues. In conclusion, the method combining endoxylanase treatment of wheat grain and the analysis of degradation products, e.g., enzymatic fingerprinting, can be applied to collections of wheat cultivars, and possibly other cereals in order to establish quantitative trait loci related to the biosynthesis of AX. |
| Databáze: | OpenAIRE |
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