GB 1886.244-2016 English PDF

US$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 1886.244-2016: National Food Safety Standard -- Food Additives -- Purple Sweet Potato Color
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 1886.244-2016	239	Add to Cart	3 days	National Food Safety Standard -- Food Additives -- Purple Sweet Potato Color	Valid

Similar standards

GB 1886.300   GB 1886.210   GB 1886.40   GB 1886.237   GB 1886.238   GB 1886.236   

Basic data

Standard ID: GB 1886.244-2016 (GB1886.244-2016)
Description (Translated English): National Food Safety Standard -- Food Additives -- Purple Sweet Potato Color
Sector / Industry: National Standard
Classification of Chinese Standard: X40
Word Count Estimation: 12,182
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 1886.244-2016: National Food Safety Standard -- Food Additives -- Purple Sweet Potato Color

---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 - Purple sweet potato pigment) National Standards of People's Republic of China National standards for food safety Food additives purple sweet potato pigments 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 purple sweet potato pigments

1 Scope

This standard applies to the sweet potato roots of sweet potato (IpomoeabatatasLam) in the purple roots as raw materials, with citric acid and other acids Of water or ethanol aqueous solution, by leaching, refined food additives purple sweet potato pigment. 2 chemical composition, molecular formula, structural formula and relative molecular mass 2.1 Chemical composition Purple sweet potato pigment is the main coloring elements anthocyanins, of which the main anthocyanin ligand for cyanidin and paeoniflorin. 2.2 Molecular formula Cyanine chrysanthemum. C15H11O6 Paeonifolia. C16H13O6 2.3 Structural formula Cyanidin. R = OH Paeonifolia. R = OCH3 2.4 Relative molecular mass Cyanidin. 287.23 (according to.2013 International relative atomic mass) Paeonifolia. 301.26 (according to.2013 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 red to purple black State liquid, powder or granular, no visible impurities Take appropriate sample, placed in a clean, dry white porcelain dish, in nature Under light, observe the color and state 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 The project requires a test method Color, E1 m (530nm ± 10nm) ≥ 5.0 Appendix A A.3 pH (10 g/L aqueous solution) 2.0 to 5.0 Appendix A A.4 Total anthocyanins (based on cornflower-3-glucoside), w /% ≥ 0.7 Appendix A, A.5 Ash, w /% ≤ 4.0 GB 5009.4 Total arsenic (in As)/(mg/kg) ≤ 2.0 GB 5009.11 Lead (Pb)/(mg/kg) ≤ 3.0 GB 5009.12 Note. Commercial purple sweet potato pigment products should meet the standards of purple sweet potato pigment as raw material, can add dextrin, tea polyphenols and other accessories made of its color Declaration of conformity.

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 specified in the three Water level. The standard titration solution used in the test, the standard solution for the determination of impurities, the preparation and the products, when no other requirements are specified, Prepared according to GB/T 601, GB/T 602 and GB/T 603. The solution used in the test was formulated with no known solvent , Refers to the aqueous solution. A.2 Identification test A.2.1 Color response Weigh about 0.1g sample, dissolved in 100mLpH3.0 citric acid - disodium hydrogen phosphate buffer, the solution should be red ~ purple; This solution gradually dropping sodium hydroxide solution (40g/L), to the sample solution is alkaline, it should gradually become violet, blue, green. A.2.2 Maximum absorption peak Take A.3 color price determination of purple sweet potato pigment sample solution, with a spectrophotometer detection, in the wavelength of 530nm ± 10nm range should be A maximum absorption peak. A.3 Determination of color price A.3.1 Reagents and materials A.3.1.1 Disodium hydrogen phosphate. A.3.1.2 Citric acid. A.3.2 Instruments and equipment Spectrophotometer. A.3.3 Analysis steps A.3.3.1 Preparation of reagents A.3.3.1.1 disodium hydrogen phosphate solution. 0.2mol/L, accurately weighed 71.64g disodium hydrogen phosphate (Na2HPO4 · 12H2O), dissolved in water And set to 1000mL. A.3.3.1.2 citric acid solution. 0.1mol/L, accurately weighed 21.01g citric acid (C6H8O7 · H2O), dissolved in water and set to 1000mL. A.3.3.1.3 pH3.0 Citric acid-disodium hydrogen phosphate buffer solution. Accurate amount of 4.11 mL of sodium hydrogen phosphate solution with 15.89 mL of lemon Acid solution, shake, with acidity meter to detect, if the pH is not 3.0, then with sodium hydrogen phosphate solution or citric acid solution to adjust the pH To 3.0. A.3.3.2 Determination Weigh 0.1g ~ 0.2g sample (accurate to 0.0001g), with pH3.0 citric acid - disodium hydrogen phosphate buffer solution dissolved, transferred to 100mL volumetric flask, add pH3.0 citric acid - disodium hydrogen phosphate buffer solution volume to the scale, shake. Take this sample solution at 1cm Cistern, pH3.0 citric acid - disodium hydrogen phosphate buffer solution as a blank control, with a spectrophotometer in the range of 530nm ± 10nm (Absorbance value should be controlled at 0.3 ~ 0.7, otherwise the sample solution concentration should be adjusted, and then re-measured set). A.3.4 Calculation of results Color value E1 m (530nm ± 10nm), according to formula (A.1) calculation. E1 m = c × (A.1) Where. A - the absorbance of the sample solution; c - the concentration of the test solution, in grams per milliliter (g/mL); 100 --- concentration conversion factor (corresponding to the color price required to convert the sample concentration of 1g/100mL). The results of the test are based on the arithmetic mean of the parallel measurement results. The absolute difference between the two independent determinations obtained under repeatability conditions The value is not greater than 2.5% of its arithmetic mean. A.4 pH (10 g/L aqueous solution) The sample was dosed into 10 g/L aqueous solution, shaken and measured with an acidity meter. A.5 Determination of total anthocyanins (measured as cornflower-3-glucoside) A.5.1 Reagents and materials A.5.1.1 Potassium chloride. A.5.1.2 Hydrochloric acid. A.5.1.3 Sodium acetate. A.5.2 Instruments and equipment Spectrophotometer. A.5.3 Analysis steps A.5.3.1 Preparation of reagents A.5.3.1.1 pH 1.0 potassium chloride buffer solution. 0.025mol/L, accurately weighed 1.86g KCl into the beaker, add about 980mL of water. The pH was measured, adjusted to pH 1.0 (± 0.05) with HCl (about 6.3 mL), transferred and fixed to 1000 mL with water. A.5.3.1.2 pH 4.5 sodium acetate buffer solution. 0.4mol/L, accurately weighed 54.43g CH3CO2Na · 3H2O into the beaker, add About 960mL of water. The pH was measured, adjusted to pH 4.5 (± 0.05) with HCl (about 20 mL), transferred and fixed to 1000 mL with water. A.5.3.2 Preparation of test solution Accurately weighed a certain amount of the sample (accurate to 0.0001g), dissolved in water, dilute the volume to 50mL, this is the sample to be tested liquid. Accurately absorb two equal amounts of stock solution, respectively, pH1.0 buffer solution and pH4.5 buffer solution diluted to 50mL, This is the sample solution. The maximum sample volume of the stock solution should not exceed 10 mL to ensure that the buffering capacity of the buffer solution is not exceeded. The stock solution was properly diluted with a buffer solution of pH 1.0 until the absorbance at wavelengths of 520 nm was on the line of the spectrophotometer Sexual range (0.3 ~ 0.7). Using this dilution factor, two sample solutions were prepared, one diluted with a buffer solution of pH 1.0 and the other pH 4.5 buffer solution. A.5.3.3 Determination With 1cm cuvette, with water as a blank control, at 520nm and 700nm wavelength, measured by pH1.0 and pH4.5 Of the buffer solution diluted with the absorbance of the sample after the preparation of the requirements of 20min ~ 50min within the time required to determine the absorbance. Note. The absorbance value is measured at a wavelength of 700 nm in order to correct the interference of the turbidity to the measurement results. If the diluted sample is too cloudy, With centrifugation or filtration method for clarification, the filter can not be used to adsorb anthocyanins. A.5.4 Calculation of results The mass fraction w of the total anthocyanin (calculated as cornflower-3-glucoside) is calculated according to formula (A.2) w = A × M × f ε × l × 1000 × m x 100% (A.2) Where. A --- (A520nm-A700nm) pH1.0- (A520nm-A700nm) pH4.5; M - the weight of the cornflower-3-glucoside in grams per mole (g/mol) (M = 449.2 g/mol); f - the dilution factor of the sample stock solution, calculated as in the method of A.5.3.2; ε = cornflower-3-glucoside molar extinction coefficient in liters per mole of [L/(mol · cm)] (ε = 26900); l - light path length, in centimeters (cm); 1000 --- volume conversion factor; V - the volume of the stock solution in milliliters (mL); m --- the quality of the sample, in grams (g). The results of the test are based on the arithmetic mean of the parallel measurement results. The absolute difference between the two independent determinations obtained under repeatability conditions The value is not greater than 5% of its arithmetic mean. Note. The anthocyanin species in the purple sweet potato is different from the cornflower-3-glucoside, so the maximum absorption wavelength, relative molecular mass and molar extinction coefficient are In addition, the result of this assay is only a total anthocyanin content of cornflower-3-glucoside and does not represent the actual total anthocyanin content in the purple sweet potato pigment. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB 1886.244-2016_English be delivered?

Answer: Upon your order, we will start to translate GB 1886.244-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB 1886.244-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB 1886.244-2016_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.