This book constitutes the refereed proceedings of the 29th annual European Conference on Information Retrieval Research, ECIR 2007, held in Rome, Italy in April 2007.

The 42 revised full papers and 19 revised short papers presented together with 3 keynote talks and 21 poster papers were carefully reviewed and selected from 220 article submissions and 72 poster paper submissions. The papers are organized in topical sections on theory and design, efficiency, peer-to-peer networks, result merging, queries, relevance feedback, evaluation, classification and clustering, filtering, topic identification, expert finding, XML IR, Web IR, and multimedia IR.

This brief addresses important aspects of food additives. Through four chapters, the authors describe the chemistry of food additives, the regulatory classification of additives on a large-scale, the risks involved in using chemicals for food preparation - including implications this has on food hygiene, and case-study examples taken from the dairy industry. More specifically, chapter one provides a list of the technological purposes of food additives defined for European use; chapter two explains the 'General Standards for Food Additives' (Codex Alimentarius Commission) which is a harmonised, workable and indisputable international standard; chapter three describes the use of selected food additives in the dairy sector, particularly with relation to the production of yoghurt products; and chapter four addresses the impact of additives on human health. This brief is of interest to researchers working in the area of food production and international regulation, both in academia and industry.