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Vegetable Oils in Food Technology
eBook Publisher: John Wiley & Sons
Imprint: Wiley-Blackwell
Format: ePub Encrypted (DRM)
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Our dietary intake comprises three macronutrients (protein, carbohydrate and lipid) and a large but unknown number of micronutrients (vitamins, minerals, antioxidants, etc). Good health rests, in part, on an adequate and balanced supply of these components. This book is concerned with the major sources of lipids and the micronutrients that they contain.
Now in an extensively updated second edition, the volume provides a source of concentrated and accessible information on the composition, properties and food applications of the vegetable oils commonly used in the food industry. Chapters are devoted to each type of oil, and an introductory chapter by the Editor provides an overview of the current production and trade picture globally. The book includes coverage of the modifications of these oils that are commercially available by means of partial hydrogenation, fractionation and seed breeding. The major food applications are linked, wherever possible, to the composition and properties of the oils.
This new edition widens the range of oils covered, addresses issues related to trans fats reduction, and new composition data is included throughout. The book is an essential resource for food scientists and technologists who use vegetable oils in food processing; chemists and technologists working in oils and fats processing; and analytical chemists and quality assurance personnel.
Praise for the first edition:
"This excellent book consists of 337 pages in 11 chapters, written by 13 experts from six countries...the important vegetable oils are dealt with in great detail. With obesity on all out lips...this book also rightly defends itself and its content - namely, that all vegetable oils, when used correctly and of course in moderation, are indeed necessary to all of us."
– Food & Beverage Reporter
"Overall, the book covers all of the major oils which the potential reader is likely to approach it for... covers a wide range of topics from production, through composition to nutritional aspects... The volume is well indexed, particularly for the individual subject oils, and it is easy to find specific topics within its chapters."
– Food Science and Technology
"This latest book edited by Professor Gunstone belongs to the kind of books where the reader rapidly knows it will bring him a wealth of updated information concentrated in one book. The goal to 'serve as a rich source of data' on the thirteen major oils and their important minor components has been attained. There is a need for books of such quality."
– European Journal of Lipid Science and Technology
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| Title of Technology eBook: Vegetable Oils in Food Technology | |
| Release Date: 03-01-2011 | |
| Publisher: Wiley-Blackwell |
This eBook download is available in the following formats:
| Parent title | Vegetable Oils in Food Technology |
|---|---|
| Encrypted (DRM) | Yes |
| SKU | 9781444339901 |
| File size | 4295 |
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| Printing | Not allowed |
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| Read aloud | No Sys requirements Download reader |
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| Note | Excellent navigation features are available via Adobe such as bookmarks and a quick access table of contents. Text search is easily accessible. An Adobe DRM-protected file is different than a pdf file in that it uses Adobe DRM (Digital Rights Management) technology, which authors and publishers use to protect their content from illegal online distribution and to set certain privileges such as restrictions on copying and printing. |
Vegetable Oils in Food Technology
Chapter One
Production and Trade of Vegetable OilsFrank D. Gunstone
1.1 EXTRACTION, REFINING AND PROCESSING
Most vegetable oils are obtained from beans or seeds, which generally furnish two valuable commodities: a fatty oil and a protein-rich meal. Seed extraction is achieved by pressing and/or by extraction with hexane. Oils such as palm and olive, on the other hand, are pressed out of the soft fruit (endosperm). Seeds give oils in differing proportions. Using USDA figures for 2008/09, world average oil yields are: soybean (18%), rapeseed (39%), sunflower (41%), groundnut (32%), cottonseed (14%), coconut (62%) and palmkernel (44%). In addition, yields from palm fruit (45–50%), olive (25–30%) and corn (about 5%) are as indicated. The relatively low yield of oil from soybeans is compensated for by the value of the high-quality protein meal (79%) accompanying the oil.
Some oils, such as virgin olive oil, are used without further treatment other than filtering, but most are refined in some measure before use. The refining processes remove undesirable materials (phospholipids, monoacylglycerols, diacylglycerols, free acids, colour and pigments, oxidised materials, flavour components, trace metals, sulphur compounds and pollutants), but may also remove valuable minor components, including antioxidants and vitamins such as carotenes and tocopherols. The refining processes must therefore be designed to maximise the removal of undesirable components and minimise the removal of the valuable minor components. Some of the latter are recovered from side streams of the refining process to give commercial products such as phosp
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