SN/T 3851-2014 English PDF

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SN/T 3851-2014: Determination of phosphatide in foods for export - Colorimetry method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3851-2014	209	Add to Cart	3 days	Determination of phosphatide in foods for export - Colorimetry method	Valid

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Basic data

Standard ID: SN/T 3851-2014 (SN/T3851-2014)
Description (Translated English): Determination of phosphatide in foods for export - Colorimetry method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 8,878
Quoted Standard: GB/T 6682
Regulation (derived from): AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the colorimetric determination of phospholipid content in food. This standard applies to the determination of meat products, soy products, dairy products, eggs, peanuts, candy, etc. phospholipid content.

SN/T 3851-2014: Determination of phosphatide in foods for export - Colorimetry method

---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 exports phospholipids - Determination - colorimetry) People's Republic of China Entry-Exit Inspection and Quarantine Standards Food exports colorimetric determination of phospholipids Issued on. 2014-01-13 2014-08-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. Please note that some content of this document may involve patents, publication of this document Institutions do not assume the responsibility to identify these patents. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Ningbo Exit Inspection and Quarantine. The main drafters of this standard. Ren Fei, Chen Shubing, Huazheng Jiang, Yu Xuejun, Peng Jinfeng, Wu bud. Food exports colorimetric determination of phospholipids

1 Scope

This standard specifies the colorimetric determination of phospholipid content in food. This standard applies to the determination of meat products, soy products, dairy products, eggs, peanuts, candy, etc. phospholipid content.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Phospholipid phosphatide The compound represented by glycerin, fatty acid, phosphoric acid, amino alcohols and the like of cyclic alcohols. Principle 4 Food phospholipids by solvent extraction and burning become pentoxide, hydrochloric acid is dissolved into hot phosphoric acid, sodium molybdate form phosphomolybdic acid case Sodium sulfate hydrazine reduction to molybdenum blue with a spectrophotometer at a wavelength of 650nm at the determination of molybdenum blue absorbance with standard curve, namely, Calculate its content.

5 Reagents and solutions

Unless otherwise specified, the reagents used in this method are analytically pure water GB/T 6682 provisions tertiary water. 5.1 HCl. Density ρ = 1.19g/mL. 5.2 zinc oxide. 5.3 potassium hydroxide. Concentrated sulfuric acid 5.4. Density ρ = 1.84g/mL. 5.5 sodium molybdate. 5.6 hydrazine sulfate. 5.7 potassium dihydrogen phosphate. dried before use 2h at 105 ℃ ± 2 ℃. 5.8 chloroform - methanol solution (21 volume). The mixture of two volumes of chloroform and 1 volume of methanol. 5.9 sodium molybdate 2.5% dilute sulfuric acid solution. Measure 140mL of concentrated sulfuric acid (5.4), poured into 300mL water. Cooled to room temperature, 12.5g sodium molybdate, add water to dissolve and dilute to 500mL, shake well and let stand 24h standby. ......

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