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GB 1886.240-2016: National Food Safety Standard -- Food Additives -- Monopotassium
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| GB 1886.240-2016 | English | 119 |
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National Food Safety Standard -- Food Additives -- Monopotassium
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GB 1886.240-2016
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Basic data | Standard ID | GB 1886.240-2016 (GB1886.240-2016) | | Description (Translated English) | National Food Safety Standard -- Food Additives -- Monopotassium | | Sector / Industry | National Standard | | Classification of Chinese Standard | X40 | | Word Count Estimation | 6,664 | | Date of Issue | 2016-08-31 | | Date of Implementation | 2017-01-01 | | Regulation (derived from) | Announcement of the State Administration of Public Health and Family Planning 2016 No.11 | | Issuing agency(ies) | National Health and Family Planning Commission of the People's Republic of China, State Food and Drug Administration | GB 1886.240-2016: National Food Safety Standard -- Food Additives -- Monopotassium---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.
(Food safety national standard - Food additive - Potassium glycyrrhetate)
National Standards of People's Republic of China
National standards for food safety
Food additives
2016-08-31 released
2017-01-01 Implementation
People's Republic of China
National Health and Family Planning Commission released
National standards for food safety
Food additives
1 Scope
This standard applies to licorice (Radixglycyrrhizae) as raw material, the extraction and purification of food additives derived from licoranate potassium.
2 molecular formula, structural formula and relative molecular mass
2.1 Molecular formula
C42H61O16K
2.2 Structural formula
2.3 Relative molecular mass
861.02 (according to the.2007 international relative atomic mass)
3 technical requirements
3.1 sensory requirements
Sensory requirements shall comply with the requirements of Table 1.
Table 1 sensory requirements
The project requires a test method
Color
status
odor
taste
White or light yellow
powder
No smell, slightly licorice flavor
Sweet
Take the appropriate amount of sample in a 50 mL beaker
Then light to observe the color and state, smell the smell and
Taste its taste
3.2 Physical and chemical indicators
Physical and chemical indicators should be consistent with the provisions of Table 2.
Table 2 Physical and chemical indicators
Item Index Test Method
Content (by dry product), w /% ≥ 90.0 Appendix A A.3
Dry reduction, w /% ≤ 8.0 Appendix A, A.4
Residue on ignition, w /% 8.5 to 10.5 Appendix A, A.5
Arsenic (As)/(mg/kg) ≤ 3.0 GB 5009.76
Heavy metals (Pb)/(mg/kg) ≤ 10 GB 5009.74
Specific rotation 40.0 ° ~ 50.0 ° Appendix A A.6
Potassium (K), w /% 3.8 to 4.8 Appendix A, A.7
Appendix A
Testing method
A.1 General provisions
The reagents and water used in this standard, when not specified in other requirements, refer to the analysis of pure reagents and GB/T 6682 in line with the provisions of the three water.
The standard solution, impurity standard solution, preparation and preparation used in the test shall be classified according to GB/T 601, GB/T 602,
GB/T 603. The solution used in the test refers to the aqueous solution when it is not specified in the formulation of the solvent.
A.2 Identification test
A.2.1 Solubility
Soluble in water, dissolved in dilute alcohol, ethanol in ethanol, slightly soluble in ether.
A.2.2 Identification of Glycyrrhizic Acid
Weigh 0.5mg ~ 1.0mg sample dissolved in 0.5mL ethanol, dropping 0.5% vanillin sulfuric acid solution 1mL ~ 2mL, solution
Was yellow to purple, add about 2mL of water, resulting in blue floc.
A.2.3 Potassium ion identification
Take platinum wire, with hydrochloric acid infiltration, dipped in the sample, in the colorless flame burning, through the blue cobalt glass, the flame that was purple.
A.3 Determination of content (by dry product)
A.3.1 Methodology
The sample was dissolved in ethanol solution and had a maximum absorbance at the wavelength of 248 nm ± 2 nm.
A.3.2 Reagents and materials
Ethanol solution. 8 2.
A.3.3 Instruments and equipment
A.3.3.1 1cm quartz cuvette.
A.3.3.2 Spectrophotometer.
A.3.4 Analysis steps
Weigh the sample 80mg (accurate to 0.0001g), placed in 100mL volumetric flask, add ethanol solution dissolved, diluted to the mark, shake
uniform. Accurately measure 2mL placed in 50mL volumetric flask, add ethanol solution diluted to the mark, shake. Is the sample solution.
The sample solution was taken in a 1 cm quartz cuvette and the absorbance was measured at a wavelength of 248 nm ± 2 nm of the spectrophotometer.
A.3.5 Calculation of results
The mass fraction w1 of potassium monoglycrate is calculated according to formula (A.1)
w1 =
0.04 × 132 × m1 ×
100% (A.1)
Where.
A - the absorbance of the sample solution;
0.04 --- dilution factor of sample;
132 --- glycyrrhizic acid potassium standard absorption coefficient E1 m value;
m1 --- the quality of the sample, in grams (g).
The results of the test are based on the arithmetic mean of the parallel measurement results (2 decimal places are reserved). Two independent tests obtained under repetitive conditions
The difference between the results is not more than 0.1%.
A.4 Determination of dry reduction
A.4.1 Analysis steps
2 g of the sample (accurate to 0.0002 g) was weighed in a constant weight weighing flask and placed in an oven at a temperature of 110 ° C ± 2 ° C.
A.4.2 Result calculation
The mass fraction w2 of the drying reduction is calculated according to the formula (A.2)
w2 =
m2-m3
m2-m4 ×
100% (A.2)
Where.
m2 --- the quality of the flask and the sample before drying, in grams (g);
m3 --- Weighing bottle and the quality of the sample after drying, in grams (g);
m4 --- Weigh the quality of the bottle, in grams (g).
The results of the test are based on the arithmetic mean of the parallel measurement results (2 decimal places are reserved). Two independent tests obtained under repetitive conditions
The difference between the results is not more than 0.01%.
A.5 Determination of burning residue
A.5.1 Analysis steps
Weigh the sample 1g (accurate to 0.0002g), placed in the constant weight of the crucible, first with a small charcoal, and then heated to carbonization completely, and then move
To a high temperature furnace at 750 ℃ ~ 800 ℃ to burn until completely ashed and called constant weight.
A.5.2 Calculation of results
The mass fraction w3 of the burning residue is calculated according to equation (A.3)
w3 =
m5-m6
m7-m6 ×
100% (A.3)
Where.
m5 --- crucible and the quality of the burning residue, in grams (g);
m6 --- crucible quality, in grams (g);
m7 --- crucible and the quality of the sample, in grams (g).
The results of the test are based on the arithmetic mean of the parallel measurement results (2 decimal places are reserved). Two independent tests obtained under repetitive conditions
The difference between the results is not more than 0.02%.
A.6 Determination of specific rotation
A.6.1 Reagents and materials
Ethanol solution. 8 2.
A.6.2 Instruments and equipment
Polarimeter.
A.6.3 Analysis steps
Weighed 1g (accurate to 0.0001g) after drying reduction, add ethanol solution in 100mL volumetric flask, dilute to scale, shake
uniform. That is, the sample solution, the solution containing 10mg per milliliter.
The sample solution was placed in a polarimeter and the optical rotation was measured in a tube at 20 ° C ± 0.5 ° C and 10 cm.
A.7 Determination of potassium (K)
A.7.1 Reagents and materials
Potassium chloride standard solution. 8 μg/mL. Weighed at 105 ℃ to dry weight of potassium chloride 15.4mg, dissolved in water, placed
1000mL volumetric flask, diluted with water to the mark, shake.
A.7.2 Instruments and equipment
Flame photometer.
A.7.3 Analysis steps
Weigh 10mg (accurate to 0.0001g) after drying reduction, dissolve in water, move into 1000mL volumetric flask, dilute to scale,
Shake, that is, sample solution.
Measured with a flame photometer. Air pressure stable at 0.5kPa, with distilled water to adjust the number of zero, potassium chloride standard solution full scale,
The sample solution was measured and the measurement data was recorded.
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