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GB/T 5009.8-2003 English PDF (GBT5009.8-2003)

GB/T 5009.8-2003 English PDF (GBT5009.8-2003)

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GB/T 5009.8-2003: Determination of saccharose in foods

This Standard specifies the determination of saccharose in foods. This Standard is applicable to the determination of saccharose in foods.
GB/T 5009.8-2003
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 67.040
C 53
Replacing GB/T 5009.8-1985
Determination of Saccharose in Foods
Replaced
ISSUED ON: AUGUST 11, 2003
IMPLEMENTED ON: JANUARY 01, 2004
Issued by: Ministry of Health of the PEOPLE Republic of China;
Standardization Administration of the PEOPLE Republic
of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Principle ... 4
4 Reagents ... 4
5 Apparatus ... 5
6 Analytical Procedures ... 5
7 Result Calculation ... 5
Determination of Saccharose in Foods
1 Scope
This Standard specifies the determination of saccharose in foods.
This Standard is applicable to the determination of saccharose in foods. 2 Normative References
The provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies.
GB/T 5009.7-2003 Determination of Reducing Sugar in Foods
3 Principle
After removing the protein, the saccharose in the sample is hydrolyzed and converted into reducing sugar, then it shall be determined as per the reducing sugar. The difference of reducing sugar before and after the hydrolysis is the saccharose content. 4 Reagents
4.1 Hydrochloric acid (1+1): take 50mL of hydrochloric acid; dilute by water to 100mL. 4.2 Sodium hydroxide solution (200g/L).
4.3 Methyl red indicator solution: take 0.10g of methyl red; dissolve by a small amount of ethanol; and then dilute to 100mL.
4.4 The other reagents shall be the same as that in Clause 3 of GB/T 5009.7-2003.

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