Journal of Food, Agriculture and Environment
Breakable starch granules in a low-amylose buckwheat (Fagopyrum esculentum Moench) mutant
Author(s):
Marija Gregori *,
Ivan KreftRecieved Date: 2012-01-27, Accepted Date: 2012-05-08
Abstract:The structure of buckwheat seed endosperm cells was studied by using Scanning Electron Microscopy (SEM). In this study, morphological differences were observed between normal buckwheat cultivar ‘Siva’ endosperm starch granules and those from a Low-Amylose Mutant (LAM), derived from the same cultivar. A normal buckwheat endosperm contains small polygonal starch granules ranging in size from 4 to 8 µm. The LAM endosperm contained mostly spherical starch granules ranging in size from 3 to 6 µm. Pinpricks are visible on the mutant starch granules’ surface. Under physical pressure, while preparing samples for SEM, mutant starch granules are often squashed, but in a similar situation control buckwheat starch granules persist in their original shape. SEM image analysis is a useful tool for classification of individual buckwheat grains in the mixtures of low and normal amylose material and could be used in plant breeding and grain processing to distinguish and separate normal from low-amylose starch endosperm seed material. Spherical native starches with a granule diameter similar to those of lipid micelles have a potential for use as fat replacers with or without further grinding. With the growing demand for carbohydrate-based fat replacers, starch from buckwheat LAM may find commercial applications in food products.
Keywords:Buckwheat starch,
Fagopyrum esculentum, Low-Amylose Mutant, Scanning Electron Microscopy, starch granule morphology, buckwheat breedingJournal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 2
Category: Food and Health
Pages: 258-262
Full text for Subscribers
Information:
Note to users
The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.
Article purchasing
If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.
Purchase this Article: 20 Purchase PDF Order Reprints for 15
Share this article :