SN/T 1852-2006 English PDF

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SN/T 1852-2006	239	Add to Cart	3 days	Determination of saponin content in tea saponin for export	Obsolete

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Basic data

Standard ID: SN/T 1852-2006 (SN/T1852-2006)
Description (Translated English): Determination of saponin content in tea saponin for export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: B35
Classification of International Standard: 67.140
Word Count Estimation: 6,625
Date of Issue: 2006-11-10
Date of Implementation: 2007-05-16
Quoted Standard: SN/T 0800.1
Regulation (derived from): Chinese industry standards for record 2007 of 3 (total of 87)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the export of tea saponin saponin content determination. This standard applies to saponin content of 30 % to 70 % of the export of tea saponin saponin content.

SN/T 1852-2006: Determination of saponin content in tea saponin for export

---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.
Determination of saponin content in tea saponin for export Book of the People's Republic of China Entry and Exit Inspection and Quarantine Determination of saponin content in tea saponin Released on.2006-11-10 2007-05-16 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Zhejiang Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Hu Zhiming, Ye Youbiao, Yang Zuyong, Yu Xufeng. This standard was first published Entry and exit inspection and quarantine industry standards. Determination of saponin content in tea saponin

1 Scope

This standard specifies the method for determining the content of saponin in tea saponin. This standard is applicable to the determination of saponin content in tea saponin exported from 30% to 70% saponin content.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. SN/T 0800.1 Import and export grain and oil, feed inspection sampling and sample preparation methods

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 Also known as tea saponin or tea saponin, is a sugar compound extracted from the seeds of the Camellia plant, which is a saponin, which is a class of pentacyclic triterpenoids consisting of three parts, a saccharide and an organic acid. The product is usually a fine powder of white or light yellow or Brown liquid.

4 sampling and sample preparation

Execute according to SN/T 0800.1.

5 Principle of the method

The tea saponin is hydrolyzed by alkali and acid to produce saponin. The water-insoluble property is used to pour the hydrolyzate into water to precipitate. The quality of the saponin is converted into saponin content.

6 reagents and instruments

6.1 Reagents All reagents were of analytical grade and water was tertiary distilled water unless otherwise stated. 6.1.1 Methanol. 6.1.2 Hydrochloric acid (ρ=1.18g/mL). 6.1.3 Sodium hydroxide. 6.1.4 Acetone. 6.1.5 20% hydrochloric acid solution. 504 mL of hydrochloric acid (6.1.2) was weighed and diluted to 1000 mL with water. 6.1.6 sodium hydroxide methanol solution. Weigh 10g of sodium hydroxide (6.1.3), dissolve in 20mL of water, add 80mL of methanol (6.1.1) Mix well. ......

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