Effects of fermentation

Drdak, M. et al., Red beet pigment composition effects of fermentation by different strains of Saccharomyces cerevisiae, J. Food Sci., 57, 935, 1992. 

Drdak, M. et al.. Effect of fermentation on the composition of the red beet pigments, Ztschr. Lebensm. Unters. Forsch., 188, 547, 1989. 

Cloughley, J. B., The effect of fermentation temperature on the quality parameters and price evaluation of Central African black teas. J. Sci. Food Agri., 31 911, 1980. 

Aletor VA. 1993. Cyanide in garri. 1. Distribution of total, bound and free hydrocyanic acid in commercial garri, and the effect of fermentation time on residual cyanide content. Int J Food Sci Nutr 44(4) 281-287. 

Suppose we are interested in investigating the effect of fermentation temperature on the percent alcohol response of the wine-making system shown in Figure 1.6. We will assume that ambient pressure has very little effect on the system and that the small variations in response caused by this uncontrolled factor can be included in the residuals. Further, we can use the same type and quantity of yeast in all of our experiments so there will be no (or very little) variation in our results caused by the factor yeast . 

Fig. 10.8 Effect of fermentation on meadowfoam seed meal composition, in the absence (a) and presence of 10 mM FeS04 (b). Methods meadowfoam seed meal (12 g) and untreated meadowfoam seed (cv. Ross) were ground together in a ratio of 100 1 in a coffee grinder for 1 min. Ground mixture (10 g) was mixed with 30 mL of either water or 10 mM FeSOa, vortexed for 1 min, and sonicated for 1 min. At several time points after mixing, 0.1 mL ahquots of the liquid layer were taken and immediately diluted with 0.9 mL methanol, vortexed, centrifuged at 13,000 rpm for 10 min, and analyzed by HPLC as described in Fig. 10.7. Data points represent averages of duplicate incubations...

Figure 6.3 Effect of fermentation medium composition on the rate of ethanol production from glucose using extruded yeast pellets. Reproduced from Hayes (1998) with permission.

Grufferty, R. C. and Condon, S. 1983. Effect of fermentation sugar on hydrogen peroxide accumulation by Streptococcus lactis CIO. J. Dairy Res. 50, 481-489. 

Figure 6.8 shows the l/rx versus Cx curve. The shaded rectangular area in the figure is equal to the residence time in a CSTF when the inlet stream is sterile. This graphical illustration of the residence time can aid us in comparing the effectiveness of fermenter systems. The shorter the residence time in reaching a certain cell concentration, the more effective the fermenter. The optimum operation of fermenters based on this graphical illustration is discussed in the next section. 

Antony, A., Sripriya, G., and Chandra, T. S. (1996). Effect of fermentation on the primary nutrients in finger millet (Eleusine coracana). ]. Agric. Food Chem. 44, 2616-2618. 

Yokoyama, H., Waki, M., Moriya, N., Yasuda, T., Tanaka, Y., and Haga, K. 2007. Effect of fermentation temperature on hydrogen production from cow waste slurry by using anaerobic microflora within the slurry. Appl. Microbiol. Biotechnol., 74, 474 183. 

Ethanol absorption Pleasant effects of fermented grain likely to have encouraged cereal agriculture-bas ed civilization 13.7D... 

Torrija, M.J., Beltran, G., Novo, M.T., Poblet, M., Guillamon, J.M., Mas, A., Rozes, N. (2003) Effect of fermentation temperature and Saccharomyces species on the cell fatty acid composition and presence of volatile compounds in wine. Int. J. Food Microbiol., 85, 127-136. 

Zoecklein, B.W., Marcy, J.E. Jasinsky, Y. (1997a). Effect of fermentation, storage sur lie or post-fermentation thermal processing on White Riesling (Vitis vinifera L.) glycoconjugates. Am. J. Enol. Vitic., 48, 397-402. 

Further evaluation of the effects of fermentation and storage conditions on aldehyde concentration. 

Figure 4 shows the effect of fermentation temperature on K, for acetic acid. The resulting equation, of the form of the Arrhenius equation, which describes this relationship is ... 

Fermentation Temperature. The effects of fermentation temperature on performance of anaerobic biological processes have been described here as a temperature dependency of the kinetic coefficients k and Kg (Figure 4 for acetate). O Rourke (3), using the kinetic information in Table VI, developed the following equations of the form of Equation 20 to define the temperature dependency of k and K,. for a complex waste over the temperature range of 20°-35°C ... 

Figure 7. Predicted effect of fermentation temperature on effluent biodegradable COD concentration and treatment efficiency for a complex waste...

Sakata, T. 1987. Stimulatory effect of short-chain fatty acids on epithelial cell proliferation in the rat intestine a possible explanation for trophic effects of fermentable fiber, gut microbes and luminal trophic factors, Br. J. Nutr., 58(1 ) 95—104. 

Nnam, N.M. Obiakor, P.N. Effect of fermentation on the nutrient and antinutrient composition of baobab (Adansonia digitata) seeds and rice Oryza sativa) grains. Ecology of Food and Nutrition. 2003, 42, 265-277. 

---