Starch benzoate

Starch benzoate may be prepared by treating dry starch in pyridine with benzoyl chloride at 75° for 72 hours. A mixture of di- and tribenzoates is said to result. " The separated tribenzoate is soluble in pyridine, acetone, and chloroform, but is insoluble in alcohol and ether. In chloroform its optical rotation is [a]o - -80°. After starch is swollen in pyridine, the addition of benzoyl chloride causes a slow benzoylation at room temperature. " The tribenzoate is produced in about twelve days. 

Nonfood preservative appHcations of sodium and potassium benzoate are found in pharmaceutical and cosmetic preparations, such as toothpastes and powders, tobacco, pastes and glue, as well as starch and latex (36,37). 

Aqua, ammonium lactate, aluminium starch octenylsuccinate, C12-15 alkyl benzoate, isopropyl palmitate, polymethyl... 

Xanax Alprazolam USP 0.25, 0.5, 1, 2 mg Tablet Anxiety disorder Binding at stereo specific Cellulose, corn starch, docusate receptor/CNS active sodium, lactose, magnesium agent stearate, silicon dioxide, sodium benzoate Pfizer (Mylan)... 

A beverage emulsion is a concentrate added to sugar and carbonated water to make soda and fruit drinks. The oil-in-water emulsion provides flavor as well as opacity in products such as orange soda. Traditionally, gum arabic has been used to stabilize these emulsions. Interfacial starch derivatives (Section 20.4.2) are used to prevent creaming (phase separation), sedimentation, and loss in flavor and opacity, where desired, both in the concentrate and in the finished beverage. The concentrate is made by homogenizing the oils with an equal amount of the solubilized lipophillic starch, citric acid, sodium benzoate and color. A fine emulsion, typically 1 micrometer or less, is required for stability and for opacity, where desired. 

Starch laurate benzoate is prepared by mixing equal parts of starch and of a 40% sodium hydroxide solution, heating in benzene to the reflux temperature and then adding slowly a mixture of benzoyl chloride and lauroyl chloride. After a few minutes, the mixed ester is formed. 

The formation of a trinicotinate was reported.2409 The best method of preparing this starch derivative involved reacting nicotinoyl chloride hydrochloride and starch in boiling pyridine.2410 Starch isonicotinates and 4-(sulfinylamino)benzoates were subsequently prepared. Starch isonicotinate was further cationized by treating it in nitromethane solution with methyl 2-(chloroacetyl)lactate or benzoylhydrazide A-chloroacetate and l-[2-(chloroacetoxy)propanoyl]-3-methylpyrazole.2411... 

In the analysis of monoquinolineiodine(I) benzoate and dipyridinebromine(I) nitrate, a sample of about 0.1 g. was added to a solution containing 2 g. of potassium iodide and a few drops of hydrochloric acid in 50 ml. of water, and the liberated iodine was titrated with a standard sodium thiosulfate solution in the presence of starch as indicator. In the analysis of dipyridinebromine(I) perchlorate, a 0.2-g. sample was dissolved in 25 ml. of 0.5 N sodium hydroxide solution to which 0.5 g. of potassium iodide had been added. The solution was then acidified with 10 ml. of 2 N sulfuric acid and the liberated iodine titrated immediately with thiosulfate. 

Beeswax Denatonium benzoate Disodium EDTA Heparin sodium Lapyrium chloride Laureth-9 Lawsone Methylene chloride Nonoxynol-4 Nonoxynol-30 Oleic acid PEG-4 PEG-6 PEG-8 PEG-9 PEG-12 PEG-14 PEG-16 PEG-20 PEG-32 PEG-40 PEG-75 PEG-100 PEG-150 PEG-200 PEG-350 Peppermint (Mentha piperita) oil Rosin Saccharin Wheat (Triticum vulgare) starch... 

M.L. Sharak and C.W. Paul, Sucrose benzoate as a tackifier for water sensitive or biodegradable hot melt adhesives, US Patent 5 574 076, assigned to National Starch and Chemical Investment Holding Corporation (Wilmington, DE), November 12,1996. 

---