GB/T 20882.7-2025 English PDF

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GB/T 20882.7-2025: Quality requirements for starch sugar - Part 7: Trehalose
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Basic data

Standard ID: GB/T 20882.7-2025 (GB/T20882.7-2025)
Description (Translated English): Quality requirements for starch sugar - Part 7: Trehalose
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X31
Classification of International Standard: 67.180.20
Word Count Estimation: 14,167
Date of Issue: 2025-04-25
Date of Implementation: 2026-05-01
Older Standard (superseded by this standard): GB/T 23529-2009
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 20882.7-2025: Quality requirements for starch sugar - Part 7: Trehalose

---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.
ICS 67.180.20 CCSX31 National Standard of the People's Republic of China Replace GB/T 23529-2009 Starch sugar quality requirements Part 7.Trehalose Part 7.Trehalose Released on 2025-04-25 2026-05-01 implementation State Administration for Market Regulation The National Standardization Administration issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document specifies the technical requirements for food quality. For food safety requirements, please refer to relevant laws, regulations, policies and food safety standards. document. This document is Part 7 of GB/T 20882 "Quality requirements for starch sugars". GB/T 20882 has been published in the following parts. --- Part 1.Edible glucose; --- Part 2.Glucose syrup (powder); --- Part 3.Crystalline fructose and solid fructose; --- Part 4.Fructose syrup; --- Part 5.Maltose; --- Part 6.Maltodextrin; --- Part 7.Trehalose. This document replaces GB/T 23529-2009 Trehalose. Compared with GB/T 23529-2009, except for structural adjustments and editorial changes, In addition, the main technical changes are as follows. --- Changed the chemical name and relative molecular mass of crystalline trehalose and the molecular formula, structural formula and relative molecular mass of anhydrous trehalose Quality (see Chapter 4, Chapter 4 of the.2009 edition); --- Changed the sensory requirements (see 6.1, 6.1 of the.2009 edition); --- Deleted the hygiene requirements (see 6.3 of the.2009 edition); --- Added general requirements for test methods (see 7.1); --- Added detection methods for impurities (see 7.2); --- Changed the test method for trehalose content (see 7.3, 7.2 of the.2009 edition); --- Changed the sample weight in the ignition residue test method (see 7.6.2, 7.4.2 of the.2009 edition); --- Changed the sampling requirements (see 8.2, 8.3 of the.2009 edition); --- Changed some requirements for marking, packaging, transportation and storage (see Chapter 9, Chapter 9 of the.2009 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed and coordinated by the National Food Industry Standardization Technical Committee (SAC/TC64). This document was drafted by. China Food Fermentation Industry Research Institute Co., Ltd., China Bio-fermentation Industry Association, Shandong Fuyang Biotechnology Co., Ltd., Jilin Aogu Biotechnology Co., Ltd., Shuangqiao (Xiamen) Co., Ltd., Shanghai Changse Trading Co., Ltd., Bowling Bio Co., Ltd., By-Health Co., Ltd., Ningbo University, Huai'an Food and Drug Inspection Institute, Mattel Technology (Qingdao) Co., Ltd. Co., Ltd., Zhejiang Shanshanjia Food Industry Development Co., Ltd. The main drafters of this document are. Peng Xuefei, Feng Zhihe, Zhao Wei, Hao Yunfei, Lian Junpeng, Chen Sheng, Li Peigong, Cai Liangping, Shao Xingfeng, Su Jing, Liu Ming, Wu Dan, Qi Danping, Wang Na, Lin Pingping, Wang Hongxia, Liu Wende, Wei Yingying, Liu Yang, Cao Mengsi, Huang Ling, Chen Nannan, Wang Lin, and Wang Ping. The previous versions of this document and the documents it replaces are as follows. ---First published in.2009 as GB/T 23529-2009; ---This is the first revision.

Introduction

Trehalose was first extracted from ergot fungus in rye by Wiggers in 1832, and then fermented with yeast, maitake mushrooms, and Trehalose is extracted from cells or converted into starch by enzymes. my country started industrial production in.2000.The sweetness of trehalose is equivalent to that of sucrose. 45%, with mild sweetness, refreshing taste, no aftertaste after eating, and very stable to heat and acid. When sugar coexists with amino acids and proteins, it will not produce browning (Maillard reaction) even if heated; trehalose has low hygroscopicity and can be used even in relatively humid environments. The degree of trehalose can reach 95% without moisture. In addition, trehalose also has the unique function of preventing starch aging, preventing protein denaturation, and inhibiting lipid oxidation. It can be used as an excellent food ingredient, eaten directly or used as a food ingredient. Raw sugar has the characteristics of being able to form a special protective film on the cell surface under harsh conditions such as high temperature, extreme cold, dryness and dehydration, effectively protecting the organism The molecular structure is not destroyed, so it can be widely used in various industries such as biological preparations, medicine, cosmetics and agriculture. With the rapid development of the food fermentation industry, the types of starch sugars have diversified, the product quality has been improved, and the product variety has been enriched. The industry technology has made great progress and development. The formulation of GB/T 20882 "Quality Requirements for Starch Sugar" is a standard for the product quality and inspection of starch sugar. The normalization and standardization of testing methods is the basic work to regulate the industry order of starch sugar and its related products and promote industrial development. GB/T 20882 "Quality Requirements for Starch Sugar" is planned to consist of seven parts. --- Part 1.Edible glucose. The purpose is to improve the product quality of the edible glucose industry. --- Part 2.Glucose syrup (powder). The purpose is to improve the product quality of glucose syrup (powder) industry. --- Part 3.Crystalline fructose and solid fructose-glucose. The purpose is to improve the product quality of the crystalline fructose and solid fructose-glucose industries. --- Part 4.Fructose-glucose syrup. The purpose is to improve the product quality of the fructose-glucose syrup industry. --- Part 5.Maltose. The purpose is to improve the product quality of the maltose industry. --- Part 6.Maltodextrin. The purpose is to improve the product quality of the maltodextrin industry. --- Part 7.Trehalose. The purpose is to improve the product quality of the trehalose industry. Starch sugar quality requirements Part 7.Trehalose

1 Scope

This document defines the terminology and definition of trehalose and gives the chemical name, molecular formula, structural formula and relative molecular mass of trehalose. It specifies the information and product classification of trehalose, stipulates the requirements, inspection rules, marking, packaging, transportation and storage, and describes the corresponding test methods. This document applies to the production, inspection and sale of trehalose produced by enzymatic conversion.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 191 Pictorial markings for packaging, storage and transportation GB/T 601 Preparation of standard titration solutions for chemical reagents GB/T 602 Preparation of standard solutions for determination of impurities in chemical reagents GB/T 603 Preparation of preparations and products used in chemical reagent test methods GB/T 6682 Specifications and test methods for water used in analytical laboratories

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Trehalose;α-D-glucopyranosyl-α-D-glucopyranoside A non-reducing disaccharide composed of two pyranose ring glucose molecules linked by a 1,1 glycosidic bond. Note. Anhydrous trehalose is a product without crystal water, and crystalline trehalose is a product with two crystal waters. 4 Chemical name, molecular formula, structural formula and relative molecular mass 4.1 Chemical name Anhydrous trehalose. α-D-pyranose-α-D-pyranose glucoside. Crystalline trehalose. α-D-pyranose-α-D-pyranose glucoside dihydrate. 4.2 Molecular formula Anhydrous trehalose.C12H22O11 Crystalline trehalose.C12H22O11·2H2O 4.3 Structural formula The structural formula of anhydrous trehalose is shown in Figure 1, and the structural formula of crystalline trehalose is shown in Figure 2. ......

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