Reference

Effect of fixatives and polymers on prolonging the effect of repellents in fabrics

Effect of fixatives and polymers on prolonging the effect of repellents in fabrics. Koshkina, I. V.; Kharitonova, S. I. (Inst. Med. Parazitol. Trop. Med. im. Marlsinovskogo, Moscow, USSR). Med. Parazitol. Parazit. Bolezni, 45(4), 446-9 (Russian) 1976. CODEN: MPPBAB. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) Of 9 perfume fixatives used for prolonging the repelling effect of DMF (dimethyl phthalate) [131-11-3], DETA (diethyltoluamide) [134-62-3], R-3 (benzoic acid diethylamide) [1696-17-9], and R-228 (tolylpiperidylamide) [13290-48-7] on mosquitoes (mainly Aedes vexans), 20-30% benzyl benzoate [120-51-4], benzyl salicylate [118-58-1], phenylethyl benzoate [94-47-3], and diethyl phthalate [84-66-2] gave the best results, prolonging the repelling activity 1.6-2.7-fold. Particularly promising was benzyl benzoate, which is also an acaricide. Polymers were ineffective.

In-situ recovery of butanol during fermentation

In-situ recovery of butanol during fermentation. Part 1: Batch extractive fermentation. Roffler, S. R.; Blanch, H. W.; Wilke, C. R. (Dep. Chem. 143-28-2 and 71-36-3 are also occured in this study. Eng., Univ. California, Berkeley, CA 94720, USA). Bioprocess Eng., 2(1), 1-12 (English) 1987. CODEN: BIENEU. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) End product inhibition can be reduced by the in situ removal of inhibitory fermn. products as they form. Extractive fermn., in which an immiscible org. solvent is added to the fermentor in order to ext. inhibitory products, was applied to the acetone-BuOH [71-36-3] fermn. Six solvents or solvent mixts. were tested in batch extractive fermns.: kerosene, 30 wt.% tetradecanol in kerosene, 50 wt.% dodecanol in kerosene, oleyl alc. [143-28-2], 50 wt.% oleyl alc. in a decane fraction, and 50 wt.% oleyl alc. in benzyl benzoate [120-51-4]. The best results were obtained with oleyl alc. or a mixt. of oleyl alc. and benzyl benzoate. In normal batch fermn. of Clostridium acetobutylicum, glucose consumption is limited to ~80 kg/m3 due to the accumulation of BuOH in the broth. In extractive fermn. using oleyl alc. or a mixt. of oleyl alc. and benzyl benzoate, >100 kg/m3 of glucose can be fermented. Removal of BuOH from the broth as it formed also increased the rate of BuOH prodn. Max. volumetric BuOH productivity was increased by ￡60% in extractive fermn. compared to batch fermn. BuOH productivities obtained in extractive fermn. compare favorably with other in situ product removal fermns. .