Abstract:The granule size distribution of starch strongly influences its physicochemical properties and the functionality of wheat. Twelve wheat cultivars grown in east China's Huanghuai region were used for investigating the granule size distribution, amylose content, and their interrelationship. The results showed that the volume distribution of starch granules show the typical bimodal with peak values in the ranges of 4.44-5.36 μm and 21.7-23.82 μm, respectively. Surface area distribution of granules was also bimodal with peak values in the ranges of 2.53-3.06 μm and 19.8-21.7 μm, respectively. The limits between the two populations both occurred at 10 μm. A typical population of number distribution of granules with peak values in the range of 0.52-0.67 μm. Proportions of granules <2.6 μm, 2.6-10 μm, and 10-40 μm were in the range of 10.06-13.63%, 28.54-41.6%, and 45.4-61.3% of total volume, respectively. Proportions of granules <10 μm were in the range of 99.9% of the total number. The amylose content was significant and negatively correlated to volume percentage of granule <10 μm, and significant and positively correlated to the volume percentage of granule 22-40 μm.Key words: wheat (Triticum aestivum L.), starch, granule, size distribution.Résumé : La répartition des granules d'amidon exerce une forte influence sur les propriétés physicochimiques et la fonctionnalité du blé. Douze variétés de blé cultivées dans la région de Huanghuai, dans l'est de la Chine, ont servi à étudier la granulométrie de l'amidon, la teneur en amylose et les liens entre ces paramètres. Selon les résultats, la répartition volumique des particules d'amidon illustre la distribution bimodale usuelle, les valeurs maximales se situant respectivement entre 4,44-5,36 μm et 21,7-23,82 μm. La surface active des granules présente une distribution bimodale elle aussi, avec des valeurs maximales entre 2,53-3,06 μm et 19,8-21,7 μm, respectivement. Dans les deux cas, les seuils entre les groupes correspondent à 10 μm. Une population typique aura une distribution de granules dont les valeurs maximales se trouvent entre 0,52 μm et 0,67 μm. Les granules de moins de 2,6 μm, de 2,6-10 μm et de 10-40 μm représentent respectivement 10,06-13,63 %, 28,54-41,6 %, et 45,4-61,3 % du volume total. Les granules de moins de 10 μm constituent 99,9 % du chiffre total. La teneur en amylose présente une corrélation négative significative avec la proportion volumique de granules de moins de 10 μm et est positivement corrélée à la proportion volumique de granules de 22-40 μm. [Traduit par la Rédaction]
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.