Fatty acids from biotechnology

In some cases the methods may be combined. Examples would include the biotechnological precipitation of chromium from Cr(VI)-containing wastes from electroplating factories by sulfate reduction to precipitate chromium sulfide. Sulfate reduction can use fatty acids as organic substrates with no accumulation of sulfide. In the absence of fatty acids but with straw as organic substrate, the direct reduction of chromium has been observed without sulfate reduction [43]. 

Sakata, T, Okabe, K. and Kuwahara, Y. (2001). Structure elucidation of twelve novel esters between five fatty acids and three branched new alcohols along with four monoterpenoids from Sancassania shanghaiensis (Acari Acaridae). Bioscience, Biotechnology and Biochemistry 65 919-927. 

Bioactive peptides can be extracted and purified with these technologies, which vary from simple to complex. Following this, the isolation of bioactive peptides, oligosaccharides, fatty acids, enzymes, water-soluble minerals, and biopolymers for biotechnological and pharmaceutical applications is possible. Further, some of these bioactive peptides have been identified to possess nutraceutical potentials that are beneficial for human health. 

Human serum albumin (HSA, essentially fatty acid-free) was obtained from Sino-American Biotechnology Company and used without further purification. Kaempferol (analytical grade) was obtained from the National Institute for Control of Pharmaceutical and Products, China. 0.5 mol/L NaCl solution was used to keep the ion strength at 0.1. Tris-HCl buffer was selected to keep the pH of the solution at 7.40. HSA solution of 1.5x1 O 5 mol/L was prepared in pH 7.40 Tris-HCl buffer solution. Kaempferol (l.OxlO"3 mol/L) solution was obtained by dissolving it in 50 mL ethanol. All other chemicals were of analytical reagent grade. Fluorescence spectra were recorded using a RF-5301 PC spectrofluorophotometer (Shimadzu) with a 150 W Xenon lamp and a 1 cm... 

ALB 11] Albuquerque M.G.E., Martino V., Pollet E., et al., Mixed culture polyhydroxyalkanoate (PHA) production from volatile fatty acid (VFA)-rich streams effect of substrate composition and feeding regime on PHA productivity, composition and ]xo]yeTties , Journal of Biotechnology,vol. 151,no. l,pp. 66-76,2011. 

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