ISO 17129:2006 粉乳—ドデシル硫酸ナトリウム（SDS-CE）の存在下でのキャピラリー電気泳動を使用した大豆およびエンドウ豆タンパク質の測定—スクリーニング法 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 17129|IDF 206 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk products, and the International Dairy Federation (IDF). It is being published jointly by ISO and IDF.

This corrected version of ISO 17129|IDF 206:2006 incorporates the following additions to the IDF Foreword:

• the paragraph providing information about the preparation and publication of the document;
• the paragraph naming the Joint ISO-IDF Action Team and the project leader.

Foreword

IDF (the International Dairy Federation) is a worldwide federation of the dairy sector with a National Committee in every member country. Every National Committee has the right to be represented on the IDF Standing Committees carrying out the technical work. IDF collaborates with ISO in the development of standard methods of analysis and sampling for milk and milk products.

Draft International Standards adopted by the Action Teams and Standing Committees are circulated to the National Committees for voting. Publication as an International Standard requires approval by at least 50 % of the IDF National Committees casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IDF shall not be held responsible for identifying any or all such patent rights.

ISO 17129|IDF 206 was prepared by the International Dairy Federation (IDF) and Technical Committee ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk products. It is being published jointly by IDF and ISO.

All work was carried out by the Joint ISO-IDF Action Team on Nitrogen compounds, of the Standing Committee on Main components of milk, under the aegis of its project leader, Mrs T.M.P. Cattaneo (IT).

Introduction

The compositional standards on many milk products require that they contain no other proteins than milk proteins. However, despite the fact that the low prices of some non-milk proteins could make them attractive as potential adulterants, there are at present no standardized methods for their determination in milk powders and other dairy products.

The method in this International Standard has been developed with the following two objectives:

• a) to cover the need to control the authenticity of products;
• b) to assist, through its application, in controlling and restraining fraud.

The choice and the first assessment of the method were carried out within the EU project SMT4-CT97-2205 (IV Frame Work).

1 Scope

This International Standard describes a method for the determination of the soy and pea protein isolates in low-heat milk powder, using capillary electrophoresis in the presence of sodium dodecyl sulfate (SDS-CE).

The method is not suitable for detecting the presence of hydrolysed plant proteins in milk powder.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

Bibliography