Brassica seed oil

Knutzon, D.S., Thompson G.A., Radke, S.E., Johnson, W.B., Knauf, V.C., and Kridl, J.C. 1992. Modification of Brassica seed oil by antisense expression of a stearoyl-ayl carrier protein desaturase gene, Proc. Natl. Acad. Sci. USA, 89, 2624—2626. 

Newkirk et al. (1997) conducted a nutritional evaluation of low-glucosinolate mustard meals. Samples of brassica seed (four B. juncea, one B. napus and one B. rapa) were processed to produce oil-extracted meals, which were then fed to broiler chickens. Meals derived from B. juncea contained more CP and less TDF on a dry basis than B. napus or B. campestris, 459 versus 446 and 431 g/kg CP and 272.2 versus 294.7 and 296.7g/kg TDF, respectively. ADF and NDF levels for B. juncea and B. campestris meals were similar to each other, but lower than those of B. napus, 127.9 and 132.0 versus 206g/kg ADF, and 211.5 and 195.8 versus 294.7g/kg NDF, respectively. B. juncea meals contained more glucosinolates than B. napus and B. campestris, 34.3 versus 21.8 and 25.5pmol/g total glucosinolates, respectively. B. juncea meals were equal or superior to B. napus and B. campestris meals for AME and apparent ileal protein digestibility. 

Vigeolas, H., P. Waldeck, T. Zank, and P. Geigenberger. 2007. Increasing seed oil content in oilseed rape (Brassica napus L.) by over-expression of a yeast glycerol-3-phosphate dehydrogenase under the control of a seed-specific promoter. Plant Biotech. J. 5 431 441. 

Weselake, R.J., S. Shah, D.C. Taylor, et al. 2007. Transformation of Brassica napus with diacylglycerol acyltransferase-1 results in increased seed oil content. In Current advances in the biochemistry and cell biology of plant lipids, eds. C. Benning and J. Ohhogge, pp. 232-234. Salt Lake City, UT Aardvark Global. 

Downey, R.K. 1964. A selection of Brassica campestris L. containing no erucic acid in its seed oil. Canadian Journal of Plant Science 58 977-981. 

The in vitro methods also include chemical mutation techniques with the use of, for example, of N-ethyl-N-nitrosourea and ethyhnethanesulfonate. These mutagenic agents enable the increase in the oleic acid concentration in Brassica napus seed oil to over 80% (MacKenzie, 1999) (Table 15.1). 

The frequency of genes for the absence of erucic acid in rape, turnip rape, and other closely related species appears to be very low. If seed oils low in erucic acid content were available within leaf mustard (Brassica juncea) this species, now grown for edible oil in India and China, could become an edible oil crop in other countries. Efforts to find genes for the absence of erucic acid in this species have been under way for a number of years in several countries, and individual plants from 8. juncea which produce seed oils essentially free from erucic acid have been isolated recently (Kirk and Oram, 1981). 

The two most common naturally occurring c/s docosenoic acids are erucic acid (c/s 22 1 n-9) found in the seed oil of the Brassica family and ceto-leic acid (c/s 22 1 n-11) found mainly in marine oils (Ackman et ai, 1971a). The cetoleic acid in fish oils is derived by oxidation of the corresponding alcohol present in small Crustacea which form part of the food chain for marine life (Nenenzel, 1970 Pascal and Ackman, 1976). To date, no longterm studies have been reported in which these two docosenoic fatty acids were fed in purified form. When a comparison was made between a HEAR... 

Coconut (Cocos nucifera) oil Cottonseed (Gossypium) oil Dicyclopentadiene/linseed oil copolymer Peanut (Arachis hypogaea) oil Rapeseed (Brassica campestris) oil Safflower (Carthamus tinctorius) oil Soybean (Glycine soja) oil Sunflower (Helianthus annuus) seed oil Tall oil Vegetable oil Walnut (Juglans regia) oil drying oil, primers... 

Borage (Borago officinalis) seed oil Brassica campestris/Aleurites fordi oil copolymer Burdock (Arctium lappa) extract Butyl acetyl... 

Mustard seed oil [Brassica alba (white mustard), B. hirta (yellow mustard), B, nigra (black mustard), B, juncea (brown mustard), 5. carinata Braun (Ethiopian mustard), Cruciferae, see also rapeseed oil]... 

The relationship between the six brassica species has been described by Downey et al., (1975). Commercially grown high-erucic acid rape and mustard seed oil are similar in composition and are characterized by their high erucic acid content (McPherson, 1978 Tsunoda era/., 1980). 

ERUCIC ACID DISTRIBUTION IN BRASSICA OLERACEA SEED OIL TRIGLYCERIDES... 

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