GB 1886.352-2021 PDF English
US$170.00 · In stock · Download in 9 secondsGB 1886.352-2021: National Food Safety Standard - Food Additive - β-cyclodextrin Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 1886.352-2021 | English | 170 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
National Food Safety Standard - Food Additive - β-cyclodextrin
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB 1886.352-2021
GB 1886.352-2021: National Food Safety Standard - Food Additive - β-cyclodextrin---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB1886.352-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
National Food Safety Standard - Food Additive -
β-cyclodextrin
ISSUED ON: SEPTEMBER 07, 2021
IMPLEMENTED ON: MARCH 07, 2022
Issued by: National Health Commission of the People's Republic of
China;
State Administration for Market Regulation.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Molecular formula and relative molecular mass ... 4
3 Technical requirements ... 4
Appendix A Inspection method ... 6
National Food Safety Standard - Food Additive - β-
cyclodextrin
1 Scope
This Standard applies to the food additive β-cyclodextrin that is prepared by
enzymatic hydrolysis and purification of starch.
2 Molecular formula and relative molecular mass
2.1 Molecular formula
(C6H10O5)7
2.2 Relative molecular mass
1134.987 (according to the international relative atomic mass in 2018)
3 Technical requirements
3.1 Sensory requirements
Sensory requirements shall meet the requirements of Table 1.
3.2 Physical and chemical indicators
Physical and chemical indicators shall meet the requirements of Table 2.
Appendix A
Inspection method
A.1 General provisions
The reagents and water used in this Standard refer to analytical reagents and
grade-3 water in accordance with GB/T 6682, when other requirements are not
indicated. The standard solutions used in the test, the standard solutions for
impurity determination, the preparations and products, unless otherwise
specified, shall be prepared in accordance with GB/T 601, GB/T 602 and GB/T
603. The solution used in the test refers to an aqueous solution, when it is not
specified which solvent is used to prepare it.
A.2 Identification test
A.2.1 Specific rotation test
Weigh 1.00 g of the sample and dissolve it in 100 mL of water; measure it
according to the method that is specified in GB/T 613. The specific rotation shall
be +160° ~ +164°.
A.2.2 Chromatographic test
In the β-cyclodextrin content determination test, the retention time of the main
peak of the sample solution chromatogram shall be consistent with the retention
time of the main peak of the standard solution chromatogram.
A.3 Determination of β-cyclodextrin content (on a dry basis)
A.3.1 Reagents and materials
A.3.1.1 Methanol: chromatographically pure.
A.3.1.2 Water: Grade-1 water specified in GB/T 6682.
A.3.1.3 β-cyclodextrin standard substance: purity ≥99.5%.
A.3.2 Instruments and equipment
High performance liquid chromatograph: equipped with a refractive index
detector.
A.3.3 Reference chromatographic conditions
A.3.3.1 Chromatographic column: 10 μm porous silica gel chromatographic
column (Φ4.6 mm × 25 cm) with octadecylsilane-bonded silica gel as the filler,
or other equivalent chromatographic column.
A.3.3.2 Mobile phase: water: methanol = 85: 15.
A.3.3.3 Column temperature: 30 °C.
A.3.3.4 Detector temperature: 35 °C.
A.3.3.5 Flow rate: 1.5 mL/min.
A.3.3.6 Injection volume: 10 μL.
A.3.4 Analysis steps
A.3.4.1 Preparation of standard solution
Weigh 0.05 g of β-cyclodextrin standard substance, accurate to 0.000 1 g; place
it in a 10 mL volumetric flask; use the mobile phase to dissolve it and dilute to
the mark; mix well. Use a 0.45 μm microporous membrane for filtration before
chromatographic analysis.
A.3.4.2 Preparation of sample solution
Weigh 0.05 g of the sample, accurate to 0.000 1 g; place it in a 10 mL volumetric
flask; use the mobile phase to dissolve it and dilute to the mark; mix well. Use
a 0.45 μm microporous membrane for filtration before chromatographic
analysis.
A.3.5 Determination
Under the reference chromatographic conditions of A.3.3, respectively
determine the standard solution and sample solution. The system suitability
means that, for 5 repeated injections of the standard solution, the relative
standard deviation of the response area obtained is less than 2.0%.
A.3.6 Result calculation
The mass fraction w1 of the β-cyclodextrin content (on a dry basis) is calculated
according to Formula (A.1).
Where:
Au – the peak area value of β-cyclodextrin in the sample solution;
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB 1886.352-2021 be delivered?Answer: The full copy PDF of English version of GB 1886.352-2021 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB 1886.352-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB 1886.352-2021_English will be deemed to be sold to your employer/organization who actually paid 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+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB 1886.352-2021 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of GB 1886.352-2021?A step-by-step guide to download PDF of GB 1886.352-2021_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB 1886.352-2021".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|