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GB/T 5009.8-2003 PDF in English


GB/T 5009.8-2003 (GB/T5009.8-2003, GBT 5009.8-2003, GBT5009.8-2003)
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GB/T 5009.8-2003English90 Add to Cart 0-9 seconds. Auto-delivery. Determination of saccharose in foods Obsolete
GB 5009.8-2023English335 Add to Cart 0-9 seconds. Auto-delivery. National food safety standard - Determination of fructose, glucose, sucrose, maltose and lactose in foods Valid
Newer version: GB/T 5009.8-2023
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GB/T 5009.8-2003: PDF in English (GBT 5009.8-2003)

GB/T 5009.8-2003
GB
NATIONAL STANDARD OF THE
PEOPLE’S 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’s Republic of China;
Standardization Administration of the People’s 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.
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.