High and Low Erucic Acid Rapeseed Oils: Production, Usage, Chemistry, and Toxicological Evaluation covers a wide range of subjects related to rapeseed, that is, from plant breeding, industrial processing, to nutrition and biochemistry. Composed of 22 chapters, this book first discusses the origin and properties of Brassica oilseed crops. Subsequent chapters describe the world production and trade of rapeseed and its products, as well as the history and marketing of rapeseed oil in Canada. Other chapters elucidate the chemical composition of rapeseed oil; the introduction and consumption of low erucic acid rapeseed varieties in Canada; and the development of improved rapeseed cultivars. Results obtained with consumption of high and low erucic acid rapeseed oils to experimental animals are also shown. This work will be helpful as an introductory material to those who are not familiar with the production, use, and properties of rapeseed oil.

Rapeseed is now the second largest oilseed crop after soybean, and the third largest vegetable oil after soybean oil and palm oil, and it is therefore an important contributor to the annual supply of vegetable oils required to meet an increasing demand. This volume provides comprehensive coverage of rapeseed oil and its close relative, canola oil, from production (agronomic) aspects, through extraction to refining and processing. Chemical composition, physico-chemical properties, food and non-food uses are considered in detail, and a chapter is included on future prospects, including oils available by means of genetic manipulation. This is a book for oils and fats chemists and technologists in the food and oleochemical industries, chemical engineers in the processing industry, nutritionists and seed technologists.

Industrial Oil Crops presents the latest information on important products derived from seed and other plant oils, their quality, the potential environmental benefit, and the latest trends in industrial uses. This book provides a comprehensive view of key oil crops that provide products used for fuel, surfactants, paints and coatings, lubricants, high-value polymers, safe plasticizers and numerous other products, all of which compete effectively with petroleum-derived products for quality and cost. Specific products derived from oil crops are a principle concern, and other fundamental aspects of developing oil crops for industrial uses are also covered. These include improvement through traditional breeding, and molecular, tissue culture and genetic engineering contributions to breeding, as well as practical aspects of what is needed to bring a new or altered crop to market. As such, this book provides a handbook for developing products from renewable resources that can replace those currently derived from petroleum. Led by an international team of expert editors, this book will be a valuable asset for those in product research and development as well as basic plant research related to oil crops. - Up-to-date review of all the key oilseed crops used primarily for industrial purposes - Highlights the potential for providing renewable resources to replace petroleum derived products - Comprehensive chapters on biodiesel and polymer chemistry of seed oil - Includes chapters on economics of new oilseed crops, emerging oilseed crops, genetic modification and plant tissue culture technology for oilseed improvement

Experiments were conducted to study factors affecting the nutritive value of rapeseed oil for the the chick using rate of growth, energetic efficiency and tissue composition as criteria. The diets fed contained high erucic acid rapeseed oil (HER), low erucic acid rapeseed oil (LER) or sunflowerseed oil (SFO), and were formulated by substitution of 10 or 20 parts of the respective oils isocalorically for glucose. Diets containing 15 parts HER or LER and 5 parts palmitic or oleic acid were formulated by similar isocaloric substitution. All chicks were fed the experimental diets from 4 days of age. When fed for 7 days, diets containing 10 or 20 parts HER caused depressed growth and feed consumption, and reduced fat deposition when compared with similar levels of SFO. Chicks fed diets containing 10 or 20 parts LER for 7 days grew at the same rate and deposited the same amount of fat as chicks fed diets containing similar levels of SFO. The type of oil fed had no effect on the level of cardiac lipid at the end of the 7 days feeding period. When fed diets containing 10 parts HER, LER or SFO for 24 days, chicks showed similar rates of growth, feed consumption, heart size and heart fat content. However, consumption of diets containing 10 parts HER caused less carcass fat deposition and less efficient energy utilization than consumption of diets containing similar levels of LER or SFO. Feeding diets containing 20 parts of oil for 24 or 26 days showed the growth promoting properties of the three oils to differ, with HER giving the lowest, LER an intermediate and SFO the most rapid rate of growth. Results also showed that chicks fed diets containing HER had larger hearts than those fed diets containing similar levels of LER or SFO, but this could not be attributed to increased heart fat content. When pair-fed, chicks fed diets containing 20 parts HER deposited less fat and utilized energy less efficiently than those fed diets containing similar levels of SFO. Fat deposition after feeding diets supplying 20 parts LER was also less than when SFO-containing diets were fed, but these two oils showed the same efficiency of energy utilization. Diets supplying HER modified with palmitic acid for 26 days caused increased growth and energy utilization, and decreased heart size when compared with the unsupplemented HER. Similar changes were not found in diets containing HER supplemented with oleic acid, or LER supplemented with either palmitic or oleic acid.