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Vliv macerace dřevní hmoty na vlastnosti destilátů
Fodor, Gabriel
In this experiment the effect of the maceration of wood mass on the properties of the distillates was monitored. With the addition of wood chips and whole pieces, the plum brandy was enriched with antioxidants and their content, ie antioxidant capacity, was measured by DPPH and FRAP spectrometric methods. For comparison, two types of wood, acacia (Robinia Pseudoacacia) and oak (Quercus Robur) were used. It was found that the average values of antioxidant capacity varied only very little between the oak samples (3.52 mg / ml) and acacia samples (3.26 mg / ml). After analytical evalu-ation, sensory analysis was performed and all data obtained were statistically processed. And on the basis of the results of the tasters' assessments, the smell and the taste of the woody tones were most evident in samples with the addition of wood mass treated at 200 ° C or 150 ° C at the same time as the best in taste and aroma, and on the other hand, they were least significant in samples with the addition of wood treated at 225 °C.
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Vyhodnocení soustřeďování dříví koňmi na revíru Dolní Bečva
Válková, Markéta
This thesis deals with the utilization of the heavy horses in the forest distrikt Dolní Bečva, which is part of the forest management area Rožnov pod Radhoštěm. The work deals with the skidding of timber by heavy horses in the woods compared to other technologies. The work is evaluated by nature, production and economic conditions related to the skidding of wood horses. It also show a detailed overview of the work done by horses for the years 2011, 2012, 2013, when the horses were in 2011 skidded 8332,23 m3 total of 2541,13 cubic meters from stump to roadside and 5791,1 m3 from roadside to skid road, in 2012 were horses skidded 7197,21 m3 total of 2202,78 cubic meters from stump to roadside and 4994,43 m3 from roadside to skid road and in 2013 were horses skidded 4589,92 m3 total of 1621,55 cubic meters from stump to roadside and 2968,37 m3 from roadside to skid road.
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