Reference

Trimethylsilyl derivatives of nonvolatile substances of aged brandy

Trimethylsilyl derivatives of nonvolatile substances of aged brandy.Some chemicals with cas registry numbers like 26655-34-5 and 36473-55-9 are also used. Balanutse, A. P.; Semenenko, N. T.; Pershina, L. Z. (USSR). Vinodel. Vinograd. SSSR, (2), 16-18 (Russian) 1977. CODEN: VIVSA6. DOCUMENT TYPE: Journal CA Section: 16 (Fermentations) Gas-liq. chromatog. of trimethylsilyated derivs. of nonvolatile substances of 1-56-year-aged brandy showed that .alpha.- and .beta.-monoses were present in the brandy in equal amts., the pentose/hexose ratio decreased with brandy age, and the contents of fructose [57-48-7], .alpha.- [26655-34-5] and .beta.-glucose [492-61-5], .alpha.- [36473-55-9] and .beta.-arabinose [36473-52-6], .alpha.- [31178-70-8] and .beta.-xylose [31178-71-9], and galacturonic acid [14982-50-4] increased manifold with time of brandy aging. Galactose [59-23-4] was found in 10-year-old brandies and its content increased thereafter with increasing brandy age. .

Pilot-plant fermentation of Streptomyces nigrificans

Pilot-plant fermentation of Streptomyces nigrificans. Demnerova, Katerina; Kralova, Blanka; Safarik, Ivo; Benesova, Ivana; Fort, Ivan (Vys. Sk. Chem.-Technol., Prague, USSR). 27710-20-9 is the cas registry number. This chemical is also mentioned in this article. Kvasny Prum., 32(9), 215-17 (Czech) 1986. CODEN: KVPRAB. ISSN: 0023-5830. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) In a culture of a S. nigrificans, UV-induced mutant formation of glucose isomerase (I) [9055-00-9] began after 12 h and paralleled the rate of mycelium growth, whereas protease [9001-92-7] was formed from the beginning but at a slower rate. The growth and I formation ceased after 12 and ~48 h, resp., whereas protease accumulated within 60 h of the study at a const. rate. D-Fructose [57-48-7] appeared after 25 h and increased at an accelerated rate to the end of the fermn. b-D-Xylose [31178-71-9] was consumed most rapidly. Its consumption was followed by that of a-D-galactose [31178-74-2], a-D-xylose [31178-70-8], and a-D-glucose [26655-34-5], in this order. The consumption of a-D-mannose [27710-20-9] was incomplete. The consumption of b-D-glucose [28905-12-6] began after a 25-h lag phase, and was rapid and complete. The inability to ferment D-xylose of wheat bran shows that the mutant has no xylanase. Impeller speed and air rate values are tabulated. .