Triticale usage in the biotechnological processes: Bioethanol and lactic acid production
2011
Marković, M., Faculty of Technology, Novi Sad (Serbia) | Markov, S., Faculty of Technology, Novi Sad (Serbia) | Pejin, D., Faculty of Technology, Novi Sad (Serbia) | Mojović, Lj., Faculty of Technology and Metallurgy, Belgrade (Serbia) | Grujić, O., Faculty of Technology, Novi Sad (Serbia) | Savatović, S., Faculty of Technology, Novi Sad (Serbia) | Pejin, J., Faculty of Technology, Novi Sad (Serbia)
Triticale shows many agronomic advantages including tolerance of acid soils, light soils, and dry conditions. This crop can be used for the ethanol production, and 8 triticale varieties were examined for it. The aim of the research was to choose a triticale variety with the lowest Falling number and the highest ethanol yield. In further research, the main aim was to see if the triticale stillage (produced during the ethanol production) can be used for the lactic acid production. According to technological parameters, the best variety is Odisej. Thermal preparation of triticale was made with distilled and tap water, but without noticeable differences in the ethanol yield. During lactic acid fermentation higher acidity was recorded in the samples without agitation, while the concentration of D- and L- lactic acid was higher in the samples with agitation. Utilization of carbohydrates was the same in both cases. The Odisej variety has the best technological characteristics, low Falling number, high alpha- amylase activity, no need for technical enzymes during the preparation process, as well as a high ethanol yield. Triticale stillage is a good medium for the lactic acid production, which can be used for natural preservation of stillage and its application in feed.
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