Vegetable seed oils

Vitamin E (tocopherol) Vegetable seed oils, milk, eggs, meat Antioxidant... 

Vegetable seed oils are a very important component of the modern diet, and their production has increased to become a significant application for the decanter. The separated seeds (some, such as cottonseed or corn, being a byproduct of other processing) are rendered, usually by mechanical grinding, but also by cooking, to form an oily paste. This paste may be mechanically... 

LA, which is commonly found in vegetable seed oils, is the most predominant PUFA in our diet. ALA is less abundant than LA however, ALA is present in some vegetable oils such as perilla, flaxseed, canola, soybean and walnut oils (Table 1) and in green vegetables (Table 2). Fish and fish oils are the main sources of long-chain n-3 PUFA (e.g. DHA, EPA, and DPA) in the human diet (Tables 3 and 4). Other dietary sources of long-chain n-3 PUFA include lean... 

Vegetable and seed oils as well as some synthetic base stocks present a new class of biodegradable base stocks. These fluids (10) have excellent biodegradation properties as measured by criteria developed by the Environmental Protection Agency (EPA) or Organization of Economic Cooperation and Development (OECD). OECD 301 and EPA 560/6-82-003 measure the biodegradation of lubricants. These tests were developed to measure the degradation of oil, especially two-cycle ok, on waterways. Aquatic toxicity criteria toward fish is also found to be acceptable for this class of fluids as measured by EPA 560/6-82-002 and OECD 203 1-12. 

Although soybeans contribute about one-half of the world production of oilseeds, they supply less than one-third of the total edible vegetable fats and oils (Table 11) because of their relatively low oil content. Nonetheless, production of soybean oil exceeds the combined production of cottonseed, peanut, and sunflower seed oils. 

Supercritical extraction has been used increasingly in recent years for specialized processes. These processes include separation of drugs from plants, oils from vegetable seeds, impurities from labile materials, and chemical feedstocks from coal and petroleum residual. The utility of supercritical extraction processes stems principally from the enhanced solubility characteristics of CO2 near its critical point and the ease with which the solvent can be recovered for recycle. 

Enumeration of Vegetal Greasy Oils.—The subjoined is a list of the principal greasy oils of commerce, with the plants that yield them, their specific gravity, and the per oontage amount of oil that may be extracted from some of the seeds mentioned —... 

The interest in mass transfer in high-pressure systems is related to the extraction of a valuable solute with a compressed gas. This is either a volatile liquid or solid deposited within a porous matrix. The compressed fluid is usually a high-pressure gas, often a supercritical fluid, that is, a gas above its critical state. In this condition the gas density approaches a liquid—like value, so the solubility of the solute in the fluid can be substantially enhanced over its value at low pressure. The retention mechanism of the solute in the solid matrix is only physical (that is, unbound, as with the free moisture), or strongly bound to the solid by some kind of link (as with the so-called bound moisture). Crushed vegetable seeds, for example, have a fraction of free, unbound oil that is readily extracted by the gas, while the rest of the oil is strongly bound to cell walls and structures. This bound solute requires a larger effort to be transferred to the solvent phase. 

Dietetic foods, margarine, hydrogenated shortenings Considered by some authorities as the most natural, nutritionally sound vegetable oil. See also Safflower Seed Oil. 

Olive oil, mixed GPC seed oil, artichoke in oil, mixed vegetables in oil, meat sauce, tomato sauce, salami... 

Gel permeation chromatography has also been used to clean up extracts from olive oil, mixed seed oil, mixed vegetables in oil, artichokes in oil, tomato sauce, meat sauce, and salami. The recovery of 39 OPP compounds was examined (74). With the same GPC column, a multiresidue determination of 43 OPPs (76) and 17 OCPs (65) was described in plant and animal tissues. 

Campanella et al. [75] Polyphenols, hydrogen peroxide, KO2, lecithin Olive oil and other vegetable oils Egg yolk Ground soya seed oil Tyrosinase or catalase or superoxide dismutase or phospholipase D/choline oxidase were entrapped in kappa-carrageenan gel Oxygen electrode -... 

Chlorobenzenes are widely dispersed in the environment as a result of their industrial usages and emissions from incinerators. Chlorobenzenes have an increasing tendency to bioaccumulate and to become more persistent as the number of chlorine atoms increases. They are also present in sewage sludge and have been shown to be taken up by carrots via this route.55 There have been reports of some chlorobenzenes being found in foodstuffs in meat, fish, vegetables and crude seed oils in the UK,54 56 in cod from the North Sea,57 in fish and shellfish in Canada,58 in fish from contaminated waters in Europe59-61 and in human milk in Canada.62... 

---