This document specifies two simplified routine methods for the determination of the amylose mass fraction of milled rice, non-parboiled. The main difference between the two methods is the dispersion procedure: method A specifies hot dispersion, and method B specifies cold dispersion.
Both methods are applicable to rice with an amylose mass fraction higher than 5 %.
NOTE - These methods describe simplified procedures for the preparation of samples, which are frequently used in routine laboratories. The methods use the same reagents as the reference method (see ISO 6647-1), but omit the defatting step. Rice samples where the amylose mass fraction has been determined by the reference method are used as standards.
Označení | ČSN EN ISO 6647-2 (461503) |
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Katalogové číslo | 511369 |
Cena | 340 Kč340 |
Datum schválení | 1. 2. 2021 |
Datum účinnosti | 1. 3. 2021 |
Jazyk | angličtina (obsahuje pouze anglický originál) |
Počet stran | 24 stran formátu A4 |
EAN kód | 8596135113699 |
Tato norma nahradila | ČSN EN ISO 6647-2 (461503) z prosince 2015 |
Dostupnost | skladem (tisk na počkání) |
ČSN EN ISO 6647-1 (461503)
Rýže - Stanovení obsahu amylózy - Část 1: Spektrofotometrická metoda s odtučňovacím postupem pomocí methanolu a kalibračními roztoky bramborové amylózy a amylopektinu voskovité rýže