This study investigated the potential of Rhizopus arrhizus UCP 402 for producing chitosan using corn steep liquor and honey as agroindustrial nitrogen and carbon sources. A complete factorial design was used to assess the improved biomass and chitosan production. The results were evaluated using Pareto charts (Statistica 7.0 software). The chitosan obtained was characterized by X-ray diffractio...

Sixty-three cross-bred lambs were randomly assigned to one of seven treatments according to a 2 × 3 + 1 factorial design (Table 1). There were two byproduct diets: one, a wet corn gluten feed which is a blend of 1/3 steep liquor/distiller solubles and 2/3 corn bran; and the second diet, where onehalf of the corn bran was replaced with wheat midds. Steep liquor/distiller solubles remained consta...

In a previous report by Kennedy and Speck (1955), it was shown that the addition of corn steep liquor to milk stimulated the growth of several species of lactic acid bacteria. Additional studies (Kennedy et al., 1955) have shown the stimulatory factor to be different from other stimulatory factors reported for the lactic acid organisms. These investigators also observed that corn steep appeared...

The fluorescence method of detecting aflatoxin-producing strains of Aspergillus flavus and related species utilizes the ultraviolet-induced fluorescence of aflatoxin produced in a modified Czapek's solution agar containing corn steep liquor, HgCl(2), and (NH(4))H(2)PO(4) instead of NaNO(3). The presence of aflatoxin is confirmed by thin-layer chromatography of CHCl(3) extracts of the fluorescin...

In this study, it was possible to evaluate the production of polyhydroxyalkanoates (PHAs) from microalgae Chlorella vulgaris and Tetradesmus obliquus, using 1% 0.25% (v/v) agro-indusytial Corn Steep Liquor residue, a product corn processing. The biomass subjected mechanical extraction 4% sodium hypochlorite + chloroform, extract further characterized Fourier Transform Infrared Spectroscopy (FTI...

Statistical experimental designs and response surface methodology were employed to optimize the concentrations of agroindustrial residues as soybean oil (SORR) from refinery, and corn steep liquor (CSL) from corn industry, for tensio-active agent produced by Candida sphaerica UCP 0995. Three 2(2) full factorial design were applied sequentially to investigate the effects of the concentrations an...

The effect of agitation on tho rate of acid formation by the microaerophilic organism Lactobacillus delbrueckii was studied. Fermentations xwre conducted at constant temperaturo and pW, and with the continuous addition of a nutrilite source. The range of agitator speeds was from 85 t o 720 rev/min. The acid formation rate was found t o increase with increasing agitator speetIB and dcrrease with...

in order to reduce the costs associated with poly-β-hydroxybutyrate production, growth and poly-β-hydroxybutyrate production of ralstonia eutropha were studied in batch culture on different carbon sources. experiments were designed and conducted to not only lower the cost of poly-β-hydroxybutyrate production by using inexpensive substrates, but also to increase poly-β-hydroxybutyrate production...