Extracts, extractive matter vegetable

Continental authors. H. Davy, although he gives more emphasis to the mineral contents of soil, thought the peculiar extractive matter formed in the decomposition of vegetables appears to constitute a prime cause of the fertility of soil . Karl Sprengel (see p. 310) rejected the humus theory in books of 1837 and 1839,2 but it was defended by Thaer (see p. 252). ... 

Vegetable oil (1797) n. An oil extracted from vegetable matter especially castor. 

In this method we might indicate which of their elements [of vegetable substances] existed in excess, without circumlocution, after the manner used by Rouelle for naming vegetable extracts he calls these extracto-resinous when the extractive matter prevails in their composition, and resino-extractive when they contain a larger proportion of resin-... 

Table 2.9 Suggested applications of dense gas extraction with CO2 in the production of alkaloid extracts from vegetable matter...

Vegetable Oil (1797) An oil extracted from vegetable matter especially castor, linseed, safflower, soya, and tung oil used in paints and plastics. ()... 

The lyophilization procedure, as described, is suitable for materials such as vegetables, that do not usually contain much nonaqueous volatile matter. For other materials, rich in these volatiles, a modification of the procedure would be required. The volatiles could in some cases be extracted with a solvent and dried separately (28), or the substances evolved in the drying could be collected and analyzed for the amount of nonaqueous material. 

NOTE There are various types of organic contaminants that can be present in boiler FW, including trace amounts of pesticides and naturally occurring humic, fulvic, and tannic acids, and solvent-extractable oily matter, such as nonvolatile hydrocarbons, vegetable oils, animal fats, waxes, soaps, greases, and the like. 

Yamazaki, N., T. Otomo, and K. Kawai. Antitumor glycoprotein extraction from rice bran. Patent-Japan Kokai Tokkyo Koho-61 143,323. 1986 9 pp. Sharma, R. D. and C. Rukmini. Hypocholesterolemic activity of unsa-ponifiable matter or rice bran oil. Indian J Med Res. 1987 3 278-281. Polasa, K., and C. Rukmini. Mutagenicity tests of cashewnut shell liquid, rice-bran oil and other vegetable oils using the Salmonella typhimurium/mC crosome system. Food Chem Toxicol 1987 25(10) 763-766. 

---