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Feed additives - Part 2: Vitamins, provitamins and chemically well-defined substances having similar effect - Riboflavin (Vitamin B2)
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GB 7300.205-2025
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Basic data | Standard ID | GB 7300.205-2025 (GB7300.205-2025) | | Description (Translated English) | Feed additives - Part 2: Vitamins, provitamins and chemically well-defined substances having similar effect - Riboflavin (Vitamin B2) | | Sector / Industry | National Standard | | Classification of Chinese Standard | B46 | | Classification of International Standard | 65.120 | | Word Count Estimation | 14,179 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-09-01 | | Older Standard (superseded by this standard) | GB/T 7297-2006 | | Issuing agency(ies) | State Administration for Market Regulation; Standardization Administration of China | GB 7300.205-2025: Feed additives - Part 2: Vitamins, provitamins and chemically well-defined substances having similar effect - Riboflavin (Vitamin B2)
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ICS 65.120
CCSB46
National Standards of the People's Republic of China
Replaces GB/T 7297-2006
Feed Additives Part 2.
Vitamins and riboflavin (vitamin B2)
Published on 2025-08-29
Implemented on 2026-09-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document is Part 205 of GB 7300 "Feed Additives". GB 7300 has already published the following parts.
---Part 1.Amino acids, amino acid salts and their analogues L-threonine (GB 7300.101);
---Part 1.Amino acids, amino acid salts and their analogues, glycine (GB 7300.102);
---Part 1.Amino acids, amino acid salts and their analogues, methionine hydroxy analogues (GB 7300.103);
---Part 1.Amino acids, amino acid salts and their analogues L-valine (GB 7300.104);
---Part 1.Amino acids, amino acid salts and their analogues, taurine (GB 7300.105);
---Part 2.Vitamins and Vitamin-like L-ascorbic acid-2-phosphate salts (GB 7300.201);
---Part 2.Vitamins and Vitamin D3 Oils (GB 7300.202);
---Part 2.Vitamins and Vitamin-like Betaine (GB 7300.203);
---Part 2.Vitamins and Vitamin-like Betaine Hydrochloride (GB 7300.204);
---Part 2.Vitamins and Vitamin B2-like Riboflavin (Vitamin B2) (GB 7300.205);
---Part 3.Mineral Elements and Their Complexes (Chelates) - Potassium Iodide (GB 7300.301);
---Part 3.Mineral Elements and Their Complexes (Chelates) - Sodium Selenite (GB 7300.302);
---Part 3.Mineral Elements and Their Complexes (Chelates) Potassium Iodate (GB 7300.303);
---Part 3.Mineral Elements and Their Complexes (Chelates) - Glycine Iron Complex (GB 7300.304);
---Part 3.Mineral Elements and Their Complexes (Chelates) - Basic Copper Chloride (GB 7300.305);
---Part 3.Mineral Elements and Their Complexes (Chromium Nicotinate) (GB 7300.306);
---Part 3.Mineral elements and their complexes (chelates) zinc glycine (GB 7300.307);
---Part 3.Mineral Elements and Their Complexes (Chelates) - Zinc Threonine Chelate (GB 7300.308);
---Part 4.Enzyme Preparations. Xylanase (GB 7300.401);
---Part 4.Enzyme Preparations. Phytase (GB 7300.402);
---Part 4.Enzyme Preparations. Cellulase (GB 7300.403);
---Part 4.Enzyme Preparations β-Mannanase (GB 7300.404);
---Part 4.Enzyme Preparations α-Galactosidase (GB 7300.405);
---Part 5.Microbial Saccharomyces cerevisiae (GB 7300.501);
---Part 5.Microorganisms Lactobacillus plantarum (GB 7300.502);
---Part 5.Microorganisms Enterococcus faecalis (GB 7300.503);
---Part 5.Microorganisms Lactobacillus acidophilus (GB 7300.504);
---Part 5.Microbial Bacillus coagulans (GB 7300.505);
---Part 6.Non-protein nitrogen urea (GB 7300.601);
---Part 8.Preservatives, fungicides and acidity regulators, sodium bicarbonate (GB 7300.801);
---Part 8.Preservatives, fungicides and acidity regulators. Propionic acid (GB 7300.802);
---Part 8.Preservatives, fungicides and acidity regulators (ammonium chloride) (GB 7300.803);
---Part 8.Benzoic acid (GB 7300.804). Preservatives, fungicides and acidity regulators
---Part 8.Preservatives, fungicides and acidity regulators (lactic acid) (GB 7300.805);
---Part 8.Preservatives, fungicides and acidity regulators, calcium formate (GB 7300.806);
---Part 9.Coloring agent β-carotene powder (GB 7300.901);
---Part 9.Coloring agents β,β-carotene-4,4-dione (cantharidin) (GB 7300.902);
---Part 10.Monosodium glutamate (MSG), a flavoring and stimulating food ingredient (GB 7300.1001);
---Part 10.Allicin, a flavoring and stimulating agent (GB 7300.1002);
---Part 10.Flavoring and Enhancing Agent Neomethylhesperidin dihydrochalcone (GB 7300.1003);
---Part 13.Other bile acids (GB 7300.1301).
This document replaces GB/T 7297-2006 "Vitamin B2 (Riboflavin) as a Feed Additive". Compared with GB/T 7297-2006, except for...
Aside from structural adjustments and editorial changes, the main technical changes are as follows.
a) The vitamin B2 content range has been changed (see Table 1,.2006 edition);
b) The formula for calculating vitamin B2 content has been changed (see 7.4.5, 4.4.3 in the.2006 edition);
c) The precision requirements for vitamin B2 content determination have been changed (see 7.4.6, 4.4.4 in the.2006 edition);
d) Added specific rotation test data processing (see 7.5.5, 4.5 in the.2006 version);
e) Added information on the principle of photosensitive flavin, reagents and solutions, instruments and equipment, and experimental data processing (see 7.6, 4.6 in the.2006 edition);
f) Added information on the principle of ignition residue, reagents and solutions, instruments and equipment, and warnings regarding the use of "sulfuric acid" (see 7.8, 4.8 in the.2006 edition);
g) The precision requirements for ignition residue have been changed (see 7.8.6, 4.8.3 of the.2006 edition);
h) The limits for total arsenic have been changed (see Table 2, Table 1 in the.2006 edition);
i) The health indicator lead was removed; heavy metals (as Pb) were added (see Table 2, Table 1 in the.2006 edition);
j) The test method for total arsenic has been changed (see 7.9, 4.10 in the.2006 edition);
k) Added a test method for heavy metals (as Pb) (see 7.10, 4.9 of the.2006 edition).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the Ministry of Agriculture and Rural Affairs of the People's Republic of China.
The release history of this document and the document it replaces is as follows.
---First published in 1987 as GB/T 7297-1987, and revised for the first time in.2006;
---This is the second revision.
introduction
Feed additives refer to small or trace amounts of substances added during feed processing, production, and use, including nutritional feed additives.
And general feed additives. For ease of use, GB 7300 "Feed Additives" is divided into 13 major categories according to product type.
---Amino acids, amino acid salts and their analogues;
---Vitamins and vitamin-like substances;
---Mineral elements and their complexes;
---Enzyme preparations;
---microorganism;
---Non-protein nitrogen;
---Antioxidants;
---Preservatives, fungicides, and acidity regulators;
---Coloring agent;
---Seasoning and food-enhancing properties;
--- Binders, anti-caking agents, stabilizers, and emulsifiers;
---Polysaccharides and oligosaccharides;
---other.
The riboflavin (vitamin B2) in this document belongs to Category 2 vitamins and vitamin-like substances. (The quality standards for riboflavin (vitamin B2) are...)
This is the fifth product standard published in this category, so this document is numbered GB 7300.205 and is considered part 205 of GB 7300.
Feed Additives Part 2.
Vitamins and riboflavin (vitamin B2)
1.Scope
This document provides the chemical name, molecular formula, relative molecular mass, and structural formula of riboflavin (vitamin B2), and specifies its use as a feed additive.
The technical requirements, sampling, inspection rules, labeling, packaging, transportation, storage, and shelf life of riboflavin (vitamin B2) products are described, along with the testing procedures.
method.
This document applies to riboflavin (vitamin B2), a feed additive produced through bio-fermentation.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 603 Preparation of reagents and products used in chemical reagent test methods
GB/T 613-2007 General Method for Determination of Specific Rotation (Specific Optical Rotation) of Chemical Reagents
GB/T 6435-2014 Determination of Moisture in Feed
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values
GB 10648 Feed Label
GB/T 13079 Determination of total arsenic in feed
GB/T 14699 Feed Sampling
NY/T 4689 Turbidimetric method for testing the limits of heavy metals in feed additives
3.Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4.Chemical name, molecular formula, relative molecular mass, and structural formula
4.1 Chemical Name
7,8-Dimethyl-10-[(2S,3S,4R)-2,3,4,5-Tetrahydroxypentyl]-3,10-Dihydrobenzopterin-2,4-dione.
4.2 Molecular Formula
C17H20N4O6.
4.3 Relative Molecular Mass
376.37 (calculated based on the 2022 international relative atomic mass).
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