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GB 25536-2010: Radish red of the national food safety standards of food additives
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Radish red of the national food safety standards of food additives
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GB 25536-2010
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Basic data | Standard ID | GB 25536-2010 (GB25536-2010) | | Description (Translated English) | Radish red of the national food safety standards of food additives | | Sector / Industry | National Standard | | Classification of Chinese Standard | X42 | | Classification of International Standard | 67.220.20 | | Word Count Estimation | 6,649 | | Date of Issue | 2010-12-21 | | Date of Implementation | 2011-02-21 | | Regulation (derived from) | Ministry of Health Bulletin No. 19 of 2010 | | Issuing agency(ies) | Ministry of Health of the People's Republic of China | | Summary | This Chinese standard applies to red radish (Raphanus sativus L.) as raw material, extraction, refining, dilutable dextrin powder or liquid food additives radish red. | GB 25536-2010: Radish red of the national food safety standards of food additives---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Radish red of the national food safety standards of food additives
National Food Safety Standard
Radish Red Food Additives
Issued on. 2010-12-21
2011-02-21 implementation
National Standards of People's Republic of China
People's Republic of China Ministry of Health issued
Foreword
Appendix A of this standard is a normative appendix.
National Food Safety Standard
Radish Red Food Additives
1 Scope
This standard applies to red radish (Raphanus sativus L.) as raw material, extraction, refining, diluted powder available dextrin
Or liquid food additives radish red.
2 Normative references
The standard file referenced in the application of this standard is essential. For cited documents with dates, only the date of
Version applies to this standard. For undated references, the latest edition (including any amendments) applies to this standard.
3 Technical requirements
3.1 Sensory requirements. comply with Table 1.
Table 1 Sensory requirements
Project requires test methods
Crimson red color to take appropriate sample is placed in a clean, dry white porcelain dish or beaker,
In natural light, observe its color and texture, and olfactory
Its taste.
Luo Bute odor with a slight odor
Powder or liquid state organization
3.2 Physical indicators. to comply with Table 2.
Table 2. Physical and chemical indicators
project
index
Testing method
Liquid powder
Color value cmE (514 nm ± 5nm) ≥ 10 5 Appendix A A.3
Residue on ignition, w /% ≤ 5 5 Appendix A A.4
Loss on drying, w /% ≤ 8 - GB 5009.3-2010 direct drying
Arsenic (As)/(mg/kg) ≤ 2 2 GB/T 5009.11
Lead (Pb)/(mg/kg) ≤ 2 2 GB 5009.12
Appendix A
(Normative)
Testing method
A.1 General Provisions
Unless otherwise indicated in the analysis using only recognized as analytical reagents and GB/T 6682-2008 specified in the water. In the analysis
Standard titration solution, impurities measured by standard solution, preparations and products, did not indicate when the other requirements, according to GB/T 601, GB/T
602, the provisions of preparation GB/T 603's. This solution was used in the test does not indicate what is formulated with solvent, it refers to an aqueous solution.
A.2 Identification Test
A.2.1 color reaction
Weigh approximately 1 g sample with a pH 3.0 citrate - disodium hydrogen phosphate buffer solution and diluted to 100 mL, the solution should be reddish
~ Purple color; adding an appropriate amount of sodium hydroxide solution (40g/L) in this sample solution, the sample solution is alkaline when the strain is violet.
A.2.2 absorption maxima
Take A.3 color value determination of red radish sample solution by spectrophotometer, at a wavelength of 514nm ± 5nm range should be one of the most
Large absorption peak.
A.3 Determination of Color Value
A.3.1 Reagents and materials
a) citric acid.
b) disodium hydrogen phosphate.
c) Disodium hydrogen phosphate solution. 0.2 mol/L. Accurately weighed 71.63 g disodium hydrogen phosphate (Na2HPO4 · 12H2O), water volume
To 1000 mL.
d) citric acid solution. 0.1 mol/L. Accurately weighed 21.01 g citric acid (C6H8O7 · H2O), water volume to 1000 mL.
e) citric acid - disodium hydrogen phosphate buffer (pH 3.0). the amount of 4.11mL A.3.1 c) with a solution of 15.89mL A.3.1 d)
Solution, mix, shake. If the pH is 3.0, with an acid or a base to adjust the pH to 3.0.
A.3.2 Instruments and Equipment
Spectrophotometer.
A.3.3 Analysis step
Accurately weighed 0.1g ~ 0.2 g sample (accurate to 0.000 2 g), with citric acid - dissolved disodium hydrogen phosphate buffer, transferred to a 100 mL
Flask, add citric acid - disodium hydrogen phosphate buffer to volume, shake. Take this sample was placed in a 1 cm cuvette to slow
Chong was doing blank absorbance was measured with a spectrophotometer at 514nm ± 5 nm range of the maximum absorption wavelength. (Absorbance control should
Made between 0.3 to 0.7, or the concentration of the sample should be adjusted, and then the absorbance was measured again. )
A.3.4 Calculation Results
Color value according to the formula (A.1) Calculated.
1) 5514 (× = ± c
AnmnmE cm (A.1)
Where.
) 5514 (nmnmE cm ± - sample concentration of 1%, with a 1cm cuvette at 514nm ± 5 nm range, the maximum absorption
Close wavelengths measured color value;
Absorbance of the sample solution A-- actually measured;
c-- concentration of the sample solution to be tested, in grams per milliliter (g/mL).
The results parallel arithmetic mean of the measurement results shall prevail. Twice in the same condition absolutely independent determination results
The difference is not more than 5% of the arithmetic mean.
A.4 Determination of residue on ignition
A.4.1 Analysis step
Weigh 2 g sample (accurate to 0.001 g), placed in a pre constant weight of the crucible (first evaporated liquid products), low heat and slowly add
Heat to completely carbonized, then carefully transferred to a high temperature furnace burning at about 600 ℃ to constant weight.
A.4.2 Calculation Results
Residue on ignition by the formula (A.2) Calculated.
twenty three
21 × -
- =
mm
mmX% (A.2)
Where.
X-- sample ignition residue content,%;
Quality m1-- crucible and residue on ignition in grams (g);
m2-- crucible mass in grams (g);
Quality m3-- crucible and the sample in grams (g).
The results parallel arithmetic mean of the measurement results shall prevail. Twice in the same condition absolutely independent determination results
The difference is not more than 5% of the arithmetic mean (powder) or 10% (liquid).
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