[EBOOK] Controlled Atmosphere storage of Fruits and Vegetables (Second Edition), A. Keith Thompson, CABI

Over the last 80 years or so, an enormous volume of literature has been published on the subject of controlled atmosphere storage of fruits and vegetables. It would be the work of a lifetime to begin to do those results justice in presenting a comprehensive and focused view, interpretation and digest for its application in commercial practice. Such a review is in demand to enable those engaged in the commerce of fruits and vegetables to be able to utilize this technology and reap its benefits in terms of the reduction of postharvest losses, and maintenance of their nutritive value and organoleptic characteristics. The potential use of controlled atmosphere storage as an alternative to the application of preservation and pesticide chemicals is of continuing interest.

In order to facilitate the task of reviewing the literature, 1 have had to rely on a combination of reviewing original publications and consulting reviews and learned books. The latter are not always entirely satisfactory since thev may not give their source of information and I may have inadvertently quoted the same work more than once. Much reliance has been made on conference proceedings, especially the International Controlled Atmosphere Research Conference, held every few years in the USA; the European Co-operation in the Field of Scientific and Technical Research (COST 94), which held postharvest meetings throughout Europe between 1992 and 1995; and the International Society for Horticultural Science's regular international conferences; and, in particular, on CAB Abstracts.

Different views exist on the usefulness of controlled atmosphere storage. Blythman (1996) described controlled atmosphere storage as a system that 'amounts to deception' from the consumer's point of view. The reason behind this assertion seems to be that the consumer thinks that the fruits and vegetables that they purchase are fresh and that controlled atmosphere storage technology 'bestows a counterfeit freshness'. Also the consumer claims that storage may change produce in a detrimental wav and cites changes in texture of apples, 'potatoes that seem watery and fall apart when cooked and bananas that have no flavour'. Some of these contentions are true and need addressing, but others are oversimplifications of the facts. Another view was expressed by David Sainsbury in 1995 and reported in the press as: 'These techniques [controlled atmosphere storage] could halve the cost of fruit to the customer. It also extends the season of availability, making good eating-quality fruit available for extended periods at reasonable costs'.

The purpose of this book is primarily to help the fresh produce industry in storage and transport of fruit and vegetables, but it provides an easily accessible reference source for those studying agriculture, horticulture, food science and technology, and food marketing. It will also be useful to researchers in this area, giving an overview of our present knowledge of controlled atmosphere storage, which will indicate areas where there is a need for further research.

Some criticisms can be made of the approach to controlled atmosphere storage and modified atmosphere packaging used in this book. Perhaps more interpretation or criticisms of the data in the literature should be made. The approach used in this book comes horn my experience, starting in the 1970s on a 2-year assignment in the Sudan, 1 year in Korea and 2 years in Colombia. In all these three countries advice had to be given on postharvest aspects of a wide range of fruit and vegetables, most of which I had no first-hand experience of. Therefore I had to rely on the literature as a basis for that advice to farmers and those in the marketing chain. Conflicting information in the literature led me to the approach of accumulating as much information as possible, then giving advice based on the market situation and my own experience. So the objective of this book is to provide as much background information to provide a basis for informed decisions. Textbooks such as this are primarily used for reference and this structure admirably suits this use. There are controlled atmosphere storage recommendations for crops that perhaps would never be stored, and in some cases these are relevant to basic data on market situations related to modified atmosphere packaging.

[EBOOK] Controlled Atmosphere storage of Fruits and Vegetables (Second Edition), A. Keith Thompson, CABI

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