Black currant oil

Fatty Acid Evening Primrose Oil Black Currant Oil Hemp Oil... 

Of the above discussed sources of GLA, the commercial oils are mainly produced from borage and evening primrose. Black currant oil is limited as a result of availability of seeds for oil production, whereas hemp is still subject to trade restrictions in many countries because of the potential tetrahydrocannabinoid (THC) content. Echium is a new crop and has not been commercialized to any signihcant extent so far. All of these seeds are processed following general methods of oil extraction common in the vegetable oil industry as discussed here. 

Major Fatty Acid (% of total fatty acids) Primrose Oil Borage Oil Black Currant Oil... 

Sunflower, safflower, corn, soybean, cottonseed, walnut oils Hydrogenated oils, margarines, milk fat, ruminant meats Borage, evening primrose, black currant oils... 

GLA synthesized by the Mucor javanicus strain was commercially available in Great Britain as oil of Javanicus. Unfortunately, despite the relatively high GLA concentration of 15 to 18%, this product could not resist the competition of cheaper sources of GLA evening primrose, borage, and black currant oils. In Japan, oil from Mortierella isabellina is a commercially available GLA source. 

Black currant oil. See Black currant (Ribes nigrum) oil... 

Synonyms Black currant oil Ribes nigrum oil Definition Fixed oil produced from seeds of the black currant, Ribes nigrum Properties Lt. yel. clear oil Uses Emollient in cosmetics food ingred. Manuf/Disthb. Arista Ind. http //www.aristaindustries.com-. Desert Whale Jojoba http //www.desertwhaie.com-, Tri-K Ind. http //www.tn-k. com... 

Alant, m. elecampane, -beere,/. black currant, kampher, m. helenin. -til, n. elecampane oil. -wurzel, /. (Pharm.) inula, elecampane. Alam locke, /. alarm bell, ftlarmieren, v.t. alarm. 

Mercapto-p-menthan-3-one has been identified as a constituent of Buchu leaf oil [6] and is a very useful substance in black currant and tropical flavours. The reaction of pulegone with hydrogen sulfide in an alkaline medium results in 8-mercapto-p-menthan-3-one formation (Scheme 13.6). 

The reaction of pulegone or isopulegone with hydrogen sulphide in triethyl-amine leads to the interesting p-menthane-8-thiol-3-one (163), a constituent of Buchu leaf oil Barosina betulina Bartl., Rutaceae), which has a black-currant flavour. Reductive dimerization of pulegone affords the alcohol (164), which... 

TABLE 3. Average Fatty Acid Profile of Oils of Evening Primrose, Black Currant, and Hemp. 

Black Currant and Other Ribes Seed Oils... 

The essential oil, which is present in a concentration of app. 1.5-2.5% in the leaves of Barosma (syn. Agathosma) species (Rutaceae) from South Africa, has traditionally been used as a flavour booster for black currants. Because both common species, B. betulina and B. crenulata, deliver different types of essential oil, they are treated separately in the following. Nevertheless, hybridisation of both wild growing species is observed. 

CIC Ethyl butyrate contribute to the fruity, estery note linalool, alpha-terpineol, citronellol and damascenone support the floral, fruity ripe character and 1,8-cineol imparts the freshness. 4-methoxy-2-methyl-2-mercapto butane is responsible for typical catty sulphurous black currant note. Extracts of the black currant buds are more green, herbaceous but they also contain the sulphurous CIC. A similar note, 8-mercapto-p-menthan-3-one has been identified in buchu oil and is often used to imitate the catty black currant aspect. 

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