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Crude chlorophyll is prepared commercially from alfalfa meal or nettles by extraction with alcohol and partition into benzene. It is used as a colouring matter, particularly for foods and pharmaceutical products. 

The term vitamin K2 was applied to 2-methyl-3-difarnesyl-l,4-naphthoquinone, m.p. 54 C, isolated from putrefied fish meal. It now includes a group of related natural compounds ( menaquinones ), differing in the number of isoprene units in the side chain and in their degree of unsaturation. These quinones also appear to be involved in the electron transport chain and oxidative phosphorylation. 

Ltease test. The enzyme uretwe hydrolyses urea to ammonium carbonate (p. 519). The reaction is sp ific and is frequently used for solu tions of urea to which the biuret test cannot be applied. Add about 5 drops of phenohred to o 2 g. of urea dissolved in 5 ml. of water. To this yellow solution, add 0 2 g. of jack bean meal suspended in 2 ml. of water containing. also 5 drops of phenol-red. The colour changes to red as the solution becomes alkaline. 

Urease is one of the enzymes which have been obtained in the crystalline state. This has been done by stirring jack bean meal with 30°o aqueous acetone, filtering and allowing the filtrate to remain at o for several hours. The urease which crystallises out is separated by centrifuging and is then recrystallised. Like crystalline pepsin and trypsin, it is a protein. 

Place about 0 2 g. of jack-bean meal in a test-tube, add 2 ml. of water and about 5 drops of phenol-red. Mix thoroughly and allow the faintly yellow solution to stand while the urea solution is being made up. 

Urease solution. Place about 5 g. of jack-bean meal in a mortar and grind up with about 10 ml. of water, t hen add about 90 ml. of water, mix thoroughly and allow to stand for some time in order to deposit starch and other insoluble substances. Decant off the supernatant liquid into a conical flask and cork the latter. 

I owe a lot to Federica Bertondn and Giovanni Boccaletti. During their stay as Erasmus students in Groningen they brought a little bit of Italy with them (I remember some very good meals). Also from a chemical point of view their stays were successful. The compounds prepared and purified by Federica are at the basis of the work described in this thesis. The work of Giovanni has paved the way to enantioselective Lewis-acid catalysis in water, which is perhaps the most significant result of this thesis. 

Cormngware Corn kernels Corn meal Cornmint Corn oil... 

Drakkar Noir Dramamine DRAM cells DRAM devices Draperies Drawdown Drawing molten glass Draw-texturing Drew-Pfitzner ligands Dried algae meal Driente Driers... 

Fisher weight Fishing lines Fishing rods Fish meal Fish oil Fish oils Fish paste... 

SoyDiesel SoyDiesel fuel Soy flour Soy meal Soy milks... 

Tagetes meal and extract Tagetes oil Tagetone [6752-80-3] Tagonis... 

Since feeds contain other substances than those required by the animals of interest, studies have also been conducted on antinutritional factors in feedstuffs and on the use of additives. Certain feed ingredients contain chemicals that retard growth or may actually be toxic. Examples are gossypol in cottonseed meal and trypsin inhibitor in soybean meal. Restriction on the amount of the feedstuffs used is one way to avoid problems. In some cases, as is tme of trypsin inhibitor, proper processing can destroy the antinutritional factor. In this case, heating of soybean meal is effective. 

The protein fraction is filtered and dried to become high (60%) protein content com gluten meal. The starch slurry can be dewatered and dried to produce regular com starch. Dry starch can be sold as is or heat treated in the presence of acid catalysts to produce dextrins. Or, it is chemically modified before dewatering and drying to produce modified starches used in food and industrial appHcations. Lasdy, it can be hydroly2ed to produce corn sweeteners. 

Com as com flakes, sweet com, com as various types of flour and meal, popcorn, other snacks foods such as chips, and com juice as sweeteners, com used in fermentation for beer and in the production of alcohol, and corncobs and stalks used as carriers for various chemicals and medications, as fiber sources, and for the improvement of soil condition by plowing under stalks, are some of the uses for this versatile crop. See Ref. 75 for more information on corn. 

Most wines with <14% alcohol are classed as table wines because they are usuaHy consumed with meals. Note that as used here, premium wines are included. In the countries of the European Union (EU), table wine means only ordinary or everyday wine. Sparkling wines are included in this group because producing the sparkle and retaining it during consumption of a botde by few people necessitates a modest alcohol level. The "generous" group of... 

Note most of these varieties make desirably distinctive wines, and the few that usually do not, eg, Carignane and Colombard, have special characteristics such as high yield and relative quaUty under difficult circumstances. With most vinifera varieties the flavor is subtle and more intensity is often sought. With varieties and hybrids from other species, such as Concord from V itis labrusca or labruscana, the flavor may be too strong and soon satiating with a meal. 

Solvent Extraction. Treatment of oil-bearing materials with solvent can effect virtually complete removal of oil from meal. However, the... 

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