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GB 25534-2010: The national food safety standards of food additives red rice red
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The national food safety standards of food additives red rice red
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GB 25534-2010
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Basic data | Standard ID | GB 25534-2010 (GB25534-2010) | | Description (Translated English) | The national food safety standards of food additives red rice red | | Sector / Industry | National Standard | | Classification of Chinese Standard | X42 | | Classification of International Standard | 67.220.20 | | Word Count Estimation | 6,658 | | 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 rice (Oryza sativa L.) as raw material, extraction, refining, can dilute dextrin powder or liquid extract of red rice red food additives. | GB 25534-2010: The national food safety standards of food additives red rice red---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.
The national food safety standards of food additives red rice red
National Food Safety Standard
Red rice 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
Red rice red food additives
1 Scope
This standard applies to red rice (Oryza sativa L.) as raw material, extraction, refining, can be diluted dextrin powder or extract
Liquid food additives red rice 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
Color purple to red take appropriate sample is placed in a clean, dry white porcelain dish or beaker,
In natural light, observe its color and state organizations. State organization powders, or liquid extract
3.2 Physical indicators. to comply with Table 2.
Table 2. Physical and chemical indicators
Item Index Test Method
Extract powder, liquid
Color value) 5535 (nmnmE cm ± ≥ 15.0 8.0 Appendix A A.3
Residue on ignition, w /% ≤ 8.0 5.0 Appendix A A.4
Loss on drying, w /% ≤ 8.0 - GB 5009.3-2010 direct drying
Arsenic (As)/(mg/kg) ≤ 1 1 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 solubility
Soluble in water and ethanol solution, not soluble in non-polar solvents.
A.2.2 color reaction
Solution at a pH of 1 to 6, reddish to purple; was purple to brown at a pH of 6 to 12 solution.
A.2.3 absorption maxima
Take A.3 color value red rice red assay sample solution by spectrophotometer, at a wavelength of 535nm ± 5nm range should be one of the most
Large absorption peak.
A.2.4 paper chromatography
A.2.4.1 Show layer solution
N-butanol. acetic acid. water = 4.1.5 (volume ratio).
A.2.4.2 analysis step
Extracted with hydrochloric acid in methanol (140) dyes, spotting and concentrated in a water bath. The filters were spotted after the exhibition has been put layer solution
Saturated layer chromatography developing tank until the solvent front up to the desired level, will remove the filter paper to dry. Paper presents purple and red
Two color spot with an Rf value of 0.32 and 0.47 respectively.
A.3 Determination of Color Value
A.3.1 Reagents and materials
Ethanol - hydrochloric acid solution. 95% ethanol solution and the mixture, the volume ratio of 0.15 mol/L hydrochloric acid solution was 85.15.
A.3.2 Instruments and Equipment
Spectrophotometer.
A.3.3 Analysis step
Accurately weighed 0.15g ~ 0.2 g sample (accurate to 0.000 2 g), with ethanol - dissolved in hydrochloric acid solution was transferred to a 100 mL volumetric flask
, Add ethanol - hydrochloric acid solution to the mark, shake. Take this sample was placed in a 1 cm cuvette, ethanol - hydrochloric acid solution blank
Controls, absorbance was measured with a spectrophotometer at 535nm ± 5nm range at the maximum absorption wavelength (absorbance should be controlled at 0.3 to 0.7
Between, otherwise the sample concentration should be adjusted and re-measuring the absorbance).
A.3.4 Calculation Results
Color value according to the formula (A.1) Calculated.
1) 5535 (× = ± c
AnmnmE cm (A.1)
Where.
) 5535 (nmnmE cm ± - sample concentration of 1%, with a 1cm cuvette in the range of 535nm ± 5nm maximal inspiratory
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), previously placed within the crucible constant weight (or liquid product to extract was evaporated to dryness), low heat
Gradually heated to completely carbonized, then carefully transferred to a high temperature oven at 600 ℃ ± 25 ℃ calcined 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,%;
m1-- crucible and residue on ignition mass in grams (g);
m2-- crucible mass in grams (g);
m3-- crucible and the sample mass, 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% (or liquid extract).
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