Oil fatty acid composition

Fish oil, fatty acid composition analysis, FAMES, 448 (fig.)... 

Ackman, R.G. and Eaton, C.A. (1966). Some commercial Atlantic herring oils. Fatty acid composition. Journal of the Fisheries Research Board of Canada 23, 991-1006. 

One thing lacking in work on authenticity is a good database of ranges of analysis values for oils. Fatty acid composition is well covered and expected ranges of sterols and tocopherol levels are also available, at least for the major oils (Codex Alimentarius, 1997 FOSFA, 1994 AOAC, 1997). There have been some surveys of other components (Rossell, 1985 Flor et al., 1993) but not all information is available in the available scientific literature. And more needs to be done. For other oils the data available are even more limited. The Leatherhead Food Research Association, UK, has carried out a survey on minor oils, but the results have not been published (J.B. Rossell, 1997, personal communication), and for some of the oils the range of samples obtainable was limited. It is to be hoped that this will be remedied in the future. 

TABLE 5. Summary of Cottonseed Oil Fatty Acid Compositions. 

Cottonseed Oil Fatty Acid Composition. The specific fatty acid profile of the triglycerides in cottonseed is dependent on the variety of cotton grown, growing conditions such as temperature and rainfall, and the analytical method used to determine the profile. Table 5 summarizes the fatty acid composition observations of several research and commercial groups. Cottonseed oil is typical of the oleic-linoleic group of vegetable oils, because those two fatty acids comprise almost 75% of the total fatty acids. Although oleic acid makes up 22% and linoleic makes up 52%, less than 1 % linolenic acid is present. Palmitic fatty acid makes up about 24% of the fatty acids. Minor amounts of other saturated fatty acids are also found. 

Table 5 lists the first FAOAVHO Codex Alimentarius Standard of the sesame oil fatty acid composition as reported by O Connor and Herb (25) and the most recent Codex Standard (24). Besides the four major fatty acids, there are low... 

Fatty Acid Compositions of Tallows and Fish and Oilseeds Oils. Fatty acid compositions of tallows and fish and vegetable oils used as feed ingredients are shown in Table 8 (11). Profiles for pahn oils are not shown they typically are chill crystallized and fractionated into oleins and stearins and can vary greatly in fatty acid compositions. The principal fatty acids of major marine oils are shown in Table 9 (39). 

The C12-C18 fatty acid fractions, approximately 85% of the coconut oil fatty acid composition, are the primary raw materials for detergent-grade fatty alcohols. Coconut oil is a primary source of basic oleochemicals and a host of other oleochemical derivatives. Figure 1 indicates some of the major processes by which... 

Table 3.136 Oil fatty acid composition of tree nuts ... 

However, under field conditions variations in daily minimum (Harris et al., 1978 Unger 1986), daily maximum (Seiler, 1983) and daily mean temperatures (Nagao and Yamazaki, 1983) have been reported to be responsible for the variation in oil fatty acid composition. In a controlled environment study, oleic acid percentage was decreased by low night temperatures (Rochester and Silver, 1983). 

Flagella, Z., Rotunno, T., Tarantino, E., Di Caterina, R. and De Caro, A. 2002. Changes in seed yield and oil fatty acid composition of high oleic sunflower Helianthus annuus L.) hybrids in relation to the sowing date and the water regime. European Journal of Agronomy 17 221-230. 

Vegetable Oil Fatty Acid Composition and Carbonization Tendency... 

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