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Rapeseed

About: Rapeseed is a research topic. Over the lifetime, 2945 publications have been published within this topic receiving 51790 citations. The topic is also known as: Brassica napus & rape.


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01 Jan 2002
TL;DR: The development and subsequent release of the first canola-quality cultivars by plant breeding programs in Canada during the 1970s created a new, high-value oil and protein crop that has gained tremendous acceptance worldwide.
Abstract: INTRODUCTION Oilseed rape (Brassica and related species, Brassicaceae) is now the second largest oilseed crop in the world providing 13% of the world’s supply. The world’s commerce is largely supplied by two species, Brassica napus L. and B. rapa L. Both species contain both spring and winter forms that are distinguished by vernalization requirement. Seeds of these species commonly contain 40% or more oil and produce meals with 35 to 40% protein. The term “canola” is a registered trademark of the Canadian Canola Association and refers to cultivars of oilseed rape that produce seed oils with less than 2% erucic acid (22:1) and meals with less than 30 μmol of aliphatic glucosinolates per gram. The development and subsequent release of the first canola-quality cultivars by plant breeding programs in Canada during the 1970s created a new, high-value oil and protein crop that has gained tremendous acceptance worldwide. The fatty acid composition of the oil is genetically controlled and has been successfully manipulated to produce products specifically tailored for end use. Commodity canola oil today contains only traces of erucic acid, 5% to 8% saturated fats, 60% to 65% monosaturated fats, and 30% to 35% polyunsaturated fats. Canola oil is widely used as a cooking oil, salad oil, and in making margarine. It is appealing to health-conscious consumers because it has the lowest saturated fat content of all major edible vegetable oils. The term “industrial rapeseed” does not have any regulatory basis but generally refers to oilseed rape cultivars that produce oils with 45% or more erucic acid and seed meals that are either high or low in glucosinolates. Cultivars with these characteristics are used primarily for non-edible purposes such as lubricants and hydraulic fluids. The term “specialty canola” most often refers to canola-quality cultivars with improved oil profiles for use in high temperature or continuous frying. Specialty canola cultivars normally produce oils that contain less than 4% linolenic acid (18:3) and/or greater than 70% oleic acid (18:1). Oils from these cultivars have greater temperature stability and improved shelf life.

148 citations

Journal ArticleDOI
TL;DR: Fluctuations in the amount and structure of the glucosinolates in each of these periods suggest a storage function for these compounds which are required at specific stages of development.
Abstract: Concentrations and distribution of glucosinolates in various organs of rape (Brassica napus L) were examined during major stages of development. Fluctuations in the total content as well as in the individual levels of glucosinolates were investigated in double low Drakkar and high glucosinolate Chine 32 cultivars. The distribution pattern of aliphatic and aromatic glucosinolates between the various organs, as well as the variation in the concentrations of individual glucosinolates during plant development were quite similar between the two cultivars. Peculiar stages of accumulation during the vegetative growth period and the seed maturation period were identified. These stages were followed by periods of intense degradation during flowering, germination and early growth stages of seedlings. Fluctuations in the amount and structure of the glucosinolates in each of these periods suggest a storage function for these compounds which are required at specific stages of development. The involvement of some of these compounds in hormonal control of flowering is also discussed.

146 citations

Journal ArticleDOI
TL;DR: The global pattern of genetic polymorphisms in rapeseed determined by resequencing a worldwide collection of germplasm accessions is reported, providing important insights into the genomic footprints of rapeseed evolution and flowering-time divergence among three ecotype groups, and will facilitate screening of molecular markers for accelerating rapeseed breeding.

144 citations

Journal ArticleDOI
TL;DR: Protex 40XL, Protex P, and Protex 5L that work at alkaline pH assisted protein extraction particularly for rapeseed and microalgae meals, illustrating that oil removal prior to protein extraction is beneficial for protein recovery.

144 citations

Journal ArticleDOI
01 Jan 2014
TL;DR: Rapeseed production has undergone sustained growth over the past 20 years and rapeseed crushing has risen strongly, Europe being the major player in this expansion (development of biodiesel) followed to a lesser extent by Canada and China.
Abstract: Global rapeseed production has undergone sustained growth over the past 20 years. Having surpassed cottonseed production in the early 2000’s, it is now the second most produced oilseed behind soybeans. The major producers are China, India, Canada and European Union (27). During this same period, rapeseed crushing has risen strongly, Europe being the major player in this expansion (development of biodiesel) followed to a lesser extent by Canada and China. World exports of rapeseeds are dominated by Canada, by far the largest exporter. Japan is a traditional importer, while China and the EU (27) are less regular buyers. Although less spectacular than palm oil growth, rapeseed oil growth is also remarkable. Its consumption occurs mainly in the crushing countries, the EU being the principal consumer. Rapeseed meal is the second major oilseed meal produced worldwide (after soybean meal). It has been following broadly the same trends as seeds and oils, this evolution was marked a short period of stagnation in the early 2000’s. Consumption of rapeseed meal has grown strongly in the EU (which is deficient in protein feed), in China (due to its extraordinary economic development), and in the USA (due to milk producers’ demand for feed). The main exporters of rapeseed meals are Canada and India. Oilseed prices spiked in 2008 and since 2010 are remaining at historically high levels: whilst prices fell sharply following the 2013 harvest, they remain well above the lows of 2009. Rape seed meal, however, will remain a secondary meal with known drawbacks; there is little prospect of its price going higher than 65–70% of that of soybean meal.

143 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023384
2022870
2021101
2020140
2019123