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GB 1976-2008: Food additive -- Sodium alginate
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Food additive -- Sodium alginate
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GB 1976-2008
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PDF similar to GB 1976-2008
Basic data | Standard ID | GB 1976-2008 (GB1976-2008) | | Description (Translated English) | Food additive -- Sodium alginate | | Sector / Industry | National Standard | | Classification of Chinese Standard | B41 | | Classification of International Standard | 67.220.20 | | Word Count Estimation | 12,183 | | Date of Issue | 2008-12-03 | | Date of Implementation | 2009-06-01 | | Older Standard (superseded by this standard) | GB 1976-1980 | | Quoted Standard | GB/T 5009.75; GB/T 5009.76; GB/T 6682 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 19 of 2008 (No. 132 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the food additive sodium alginate (alginate) requirements, test methods, inspection rules, marking, packaging, transport and storage. This standard applies from kelp (Laminaria), Sargassum (Natans), kelp (Macrocystis), Ascophyllum algae (Ascophyllum) and other brown algae plants, made ??by extraction process, used as a food additive sodium alginate (sodium alginate). | GB 1976-2008: Food additive -- Sodium alginate---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 additive.Sodium alginate
ICS 67.220.20
B41
National Standards of People's Republic of China
Replacing GB 1976-1980
Food additive sodium alginate
Posted 2008-12-03
2009-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Chapter 3 of this standard are mandatory, the rest are recommended.
This standard replaces GB 1976-1980 "food additive sodium alginate."
This standard compared with GB 1976-1980, the main changes are as follows.
--- The original standard name "alginate" to "sodium alginate", the name of unity and existing products;
--- The "viscosity" to adjust the product specifications;
--- Original standard "transparency" to "light transmittance";
--- "Water insoluble" metric modified from the original 3.0% to 0.6%;
--- The "sulfated ash" indicator to "ash" index to 18% to 27%;
--- Removal of heavy metals index;
--- The relevant test methods listed in Appendix A in.
The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F normative appendix.
The standard proposed by the People's Republic of China Ministry of Agriculture.
This standard by the National Standardization Technical Committee on Food Additives.
This standard was drafted. Chinese Academy of Fishery Sciences Yellow Sea Fisheries Research Institute.
The main drafters of this standard. Wang Lian beads, New Approach to, Zhaiyu Xiu, cold Kay Liang, Chen Yuanhui, Road Shi-yong, Liu Tianhong.
This standard replaces the standards previously issued as follows.
--- GB 1976-1980.
Food additive sodium alginate
1 Scope
This standard specifies the food additive sodium alginate (alginate) requirements, test methods, inspection rules, marking, packaging, transport and
Storage.
Brown algae and other plants, the extracted processed into use as a food additive sodium alginate (alginate).
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Determination of GB/T 5009.75 Lead in Food Additives
Determination of GB/T 5009.76 arsenic in food additives
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
3 Requirements
3.1 Specifications
Product Specifications Table 1.
Table 1 Product Specifications
Specifications low viscosity in high viscosity
Viscosity/(mPa · s) < 150 150 ~ 400> 400
3.2 Physical and Chemical Indicators
Physical and chemical indicators specified in Table 2.
Table 2. Physical and chemical indicators
Item Index
Milky white color and character to a pale yellow or light brown powder or granular
pH of 6.0 to 8.0
Moisture /% ≤15.0
Ash (dry basis)/18 ~ 27%
Water Insoluble /% ≤0.6
Transmittance /% compliance
Lead (Pb)/(mg/kg) ≤4
Arsenic (As)/(mg/kg) ≤2
Test Method 4
4.1 color
The samples were amortized in the white porcelain plate, in well-lit, odor-free environment by visual determination.
4.2 Viscosity
Accordance with the provisions of Appendix A to perform.
Accordance with the provisions of Appendix B to perform.
4.4 Water
Execution according to the provisions of Appendix C.
4.5 Ash
Accordance with the provisions of Appendix D to perform.
4.6 Water insoluble matter
Accordance with the provisions of Appendix E to perform.
4.7 transmittance
Accordance with the provisions of Appendix F to perform.
4.8 Lead
According to GB/T 5009.75 in the regulations, samples were wet digestion.
4.9 Arsenic
According to GB/T 5009.76 in the regulations, samples were wet digestion.
5 Inspection Rules
5.1 Sampling
5.1.1 batch composition
In a mixing amount of the mixing tank batch.
5.1.2 Sampling Method
a) on each batch by the stack, middle and lower three different positions extraction, batch no more than 1t, extracting at least 6; batch of more than 1t,
Extracting at least 10.
b) an amount not less than the sampling bag extraction 200g, stacked along the facade of the X-shaped or W-shaped bags of each extract; products should not stacking
In various parts of the randomly selected.
C) After each sample is taken out of the bag should be fully mixed, the sample was reduced by quartering to a sample of at least 500g.
d) The samples were sealed in the mill jar or plastic bag, seal, label stickers, ready, and should fill in the sampling form.
e) single sampling include. Name of the sample, sampling time, place, product lot number, number of samples, sampling base (or batch), the sample of people
Signature and other content, as necessary sampling locations indicated environmental conditions and storage and so on.
5.2 Inspection classification
Product testing and factory inspection is divided into type test.
5.2.1 factory inspection
Each batch of products must be factory inspection. Factory inspection performed by production units of the quality inspection department, inspection items should include viscosity, color
Ze, pH, water insoluble, light transmittance; passing inspection issue inspection certificate, inspection and certification of products with the factory or warehouse.
5.2.2 Type inspection
All items of type inspection items specified in this standard. When one of the following conditions, type of inspection should be carried out.
a) When new products into production;
b) long-term shutdown, the production recovery;
c) material change or alter the main production processes that may affect product quality time;
d) the national quality supervision bodies during type inspection requirements;
e) factory inspection and type inspection when the last big difference;
f) Normal production, every six months, at least once a periodic inspection.
5.3 determine the rules
5.3.1 The test results of the seized items shall comply with this standard.
5.3.2 Test results there is a security index and one or more indicators do not meet this standard, then sentenced this batch of product failure.
5.3.3 test results if an indicator of other indicators do not meet this standard, the double sampling to allow this item to a re-inspection,
Press the retest results to determine whether the product is qualified in this installment.
6 signs, packaging, transportation and storage
6.1 mark
The packaging should be strong, clear signs, including. "Food Additives" word, product name, trademark, manufacturer name and address, birth
Production date and batch number, net weight, product standards and shelf life.
6.2 Packaging
Products lining packaging materials shall comply with the standards of food hygiene, packaging should be complete, clean, seal, secure, suitable for long distance transport.
6.3 Transport
Transportation should be clean, sanitary, rain, transportation should prevent the sun, rain and heat, moisture, and toxic and hazardous substances can not be mixed up.
6.4 Storage
It should be kept clean, dry, sun coffers, to avoid the rain and the sun, preventing heat, moisture, and toxic and hazardous substances can not be mixed up.
Appendix A
(Normative)
Determination of the viscosity of sodium alginate
A. Rationale
When viscometer rotor rotates in the sodium alginate solution by viscous resistance, so that the torque generated gossamer connection pointer, and viscous resistance
Force to contend with, and finally reached equilibrium, by indicating the scale disk reading, the reading multiplied by a specific factor that walks viscosity.
A. 2 Instrument
Rotational viscometer.
A. 3 measuring step
A. 3.1 preparation of a 1% aqueous solution of sodium alginate 500mL ~ 600mL. Weigh 5.0g ~ 6.0g sample, distilled water is added in advance the amount of good
The need to press the sample size to calculate the required amount of distilled water, dissolved when the sample, you should open an electric mixer, slowly added under stirring again
Thus, stirring, until a homogeneous solution was allowed to stand until bubbles Tuojin spare.
A. 3.2 to adjust the temperature of the solution was 20 ℃ ± 0.5 ℃, then viscometer rules were measured after start viscometer switches, rotary
About 0.5min, after reading the pointer to be stable turntable.
A. 4 Calculation results
Digital direct reading viscometer, viscometer pointer by formula (A.1) to calculate viscosity.
A = S · k (A.1)
Where.
A --- viscosity unit is mPas (mPa · s);
S --- viscometer pointer readings;
Corresponding rotor speed and the coefficient k --- chosen when measured.
A. 5 Repeatability
Take two parallel samples as a result of an arithmetic mean value, allowing a relative deviation of 3%.
Appendix B
(Normative)
B. Rationale
Sodium alginate aqueous solution of different acidity on the glass electrode pH meter and calomel electrodes different DC electromotive force, through an amplifier
Indicating its pH.
B. 2 Instrument
PH meter. accuracy 0.01pH units.
B. 3 Reagents
Test water should comply with GB/T 6682 in the three water requirements.
B. 4 measuring step
The preparation of a 1% aqueous solution of sodium alginate. Weigh the sample 1g (weighing accuracy of 0.01g), add distilled water 99mL, stirring to dissolve into a uniform solution
Solution, and the solution concentration of 1%.
By using a predetermined pH meter, pH meter calibration first, and then 100mL beaker of scooping up 1% sodium alginate solution 50mL, electrical
Pole immersed in the solution, and then start the pH meter to measure the pH of the test solution. Note shake solution measured until after the pointer or the display value is stable readings.
B. 6 calculated results
Each sample taken two parallel samples were measured, the arithmetic mean of the results.
B. 7 Repeatability
Results of two parallel samples absolute deviation of not more than 0.10, otherwise reconstituted solution was measured.
Appendix C
(Normative)
Determination of sodium alginate in water
C. Rationale
Samples at 105 ℃ ± 2 ℃, atmospheric pressure and dried until constant weight, escaping the mass of water.
C. 2 Instrument
C. 2.1 Balance flat aluminum or glass flask. diameter 60mm ~ 70mm, height 35mm or less.
C. 2.2 electric oven.
C. 3 measuring step
C. 3.1 constant weight method
C. 3.1.1 Constant weight weighing bottle
With clean glass or aluminum flat type weighing bottle and placed in an oven at 105 ℃ ± 2 ℃, the cap of the bottle oblique side branch, baking 1h ~ 1.5h, cover
Caps, removed, placed in the dryer after cooling 30min weighed (registration to 0.0001g). Then bake 30min, also cooled weighed until around
Poor quality of not more than twice 0.0005g to constant weight.
C. 3.1.2 Determination
With constant weight weighing bottle sample was weighed 2g ~ 3g (weighing accuracy of 0.0001g). The cap to the bottle oblique branch side, 2 ℃ bake at 105 ℃ ±
Oven bake 4h, remove the cover cap, 30min cooled in a desiccator and weighed. Similarly then bake 1h, cooling weighing, until the mass around twice
The difference is not more than 0.002g of constant weight.
C. 3.2 Rapid method
C. 3.2.1 Constant weight weighing bottle
Constant weight method with C. 3.1.1.
C. 3.2.2 Determination
With constant weight weighing bottle sample was weighed 2g ~ 3g (weighing accuracy of 0.0005g), will cover the bottle oblique side branch at 105 ℃ ± 2 ℃ oven
Bake 5h, remove the cover cap, 30min cooled in a desiccator and weighed.
C. 3.3 Calculation Results
Water according to formula (C.1) Calculated.
100 (C.1)
Where.
X1 --- moisture content of the sample,%;
C. 3.4 Repeatability
Each sample should be taken two parallel samples were measured by an arithmetic average of the results. Two parallel samples results relative deviation shall not exceed
0.4%, or re measured.
When as a result of dispute, C. 3.1 as a reference method.
Appendix D
(Normative)
Determination of sodium alginate in ash
D. Rationale
After completion of the sodium alginate residue on ignition at 600 ℃ ± 25 ℃ ash as inorganic matter.
D. 2 measurement step
D. 2.1 crucible constant weight
Take a clean porcelain crucible placed in a furnace at a temperature of 600 ℃ ± 25 ℃ burn 30min, then cooled in air 1min, add
After cooling to the dryer 30min, weighed; repeated burning 30min, cooled weighing related manner, until the difference in mass before and after the two are not
Greater than 0.0005g.
D. 2.2 Determination
a) said in a constant weight of the crucible takes about 2g sample (weighing accuracy of 0.0002g), carefully carbonized in an electric furnace, carbonization should gradually heated,
Sample case spill or overflow. When the sample to be no smoke, move it into a high temperature furnace, at a temperature of 600 ℃ ± 25 ℃ burning
4h, removed, cooled in air after 1min desiccator cooling 30min, weighed; repeat burning 1h, cooling the same,
Weighing, until the mass difference before and after the two is not more than 0.002g of constant weight.
b) If the ignition after 4h is still dark gray or black particles, will be removed after cooling the crucible several drops of 30% hydrogen peroxide (H2O2) solution
(With just wet as well, should not pay more), placed below 100 ℃ oven drying, and then moved into the high-temperature crucible furnace burning.
Constant weight in the same manner as described above, cooled and weighed.
D. 3 Results Calculation
D. 3.1 ash according to formula (D.1) Calculated.
100 (D.1)
Where.
X2 --- sample ash content,%;
D. 3.2 ash on dry basis according to equation (D.1) Calculated.
X2 '= X2 × (1-X1) (D.2)
Where.
X2 '--- sample in dry ash content,%;
X2 --- sample ash content,%;
X1 --- moisture content of the sample,%.
D. 4 Repeatability
Each sample should be taken two parallel samples were measured by an arithmetic average of the results.
Two parallel samples allow relative deviation of 2%, or re measured.
Appendix E
(Normative)
Determination of sodium alginate in water insoluble
E. Rationale
Sodium alginate aqueous solution by vacuum filtration sand core crucible, the residue is washed and dried to constant weight to represent the mass fraction.
E. 2 Equipment
E. 2.1 vacuum pump.
E. 2.2 sand core crucible. Model P40 or G3, filter plate pore size of 30μm ~ 50μm.
E. 3 measuring step
Weigh a sample of about 0.5g (weighing accuracy of 0.0002g) in 500mL beaker, add distilled water to 200mL, cover the surface of the dish, heat and cook
Boiling, to maintain micro-boiling 1h (note agitation when heated). Serve hot with dried to constant weight (mass difference before and after no more than twice 0.0002g to constant weight,
Need to strictly maintain the cooling operation unified cooling time) of the sand core crucible vacuum filtration, and thoroughly washed with hot distilled water beaker and the sand core crucible
Crucible, and then the sand core crucible in the 105 ℃ ± 2 ℃ oven drying to constant weight (mass difference of not more than twice before and 0.0003g to constant weight).
E. 4 Calculation results
Water insoluble matter according to equation (E.1) Calculated.
100 (E.1)
Where.
Water insolubles X3 --- sample,%;
E. 5 Repeatability
Each sample should be taken two parallel samples were measured by an arithmetic average of the results.
Results of two parallel samples absolute deviation of not more than 0.10, or re measured.
Appendix F
(Normative)
Determination of sodium alginate in the light transmittance
F. Rationale
The transmitted light beam source through the sodium alginate solution generated by the photoelectric conversion, the light transmittance is displayed in digital form.
F. 2 Instrument
Digital sodium alginate transparency instrument.
F. 3 steps
Take a 1% aqueous solution of sodium alginate (wet basis), according to the provisions of the instrument operation, first adjust zero and full scale with distilled water adjusted to 10.0, and then
Test solution were measured.
F. 4 Calculation results
Transmittance according to formula (F.1) Calculated.
X4 = T10 × 100
(F.1)
Where.
Transmittance X4 --- sample,%;
T --- dial readings;
10 --- light transmittance of distilled water.
F. 5 Repeatability
Each sample should be taken two parallel samples were measured by an arithmetic average of the results.
Two parallel samples results relative deviation of not more than 2%, otherwise reconstituted solution and re-assay.
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