Effects of chemical preservative and pressing of ensiled sugar-beet pulp on the quality of fermentation process

Abstract

This study deals with effects of pressing of ensiled sugar-beet pulp and of application of a chemical preservative on the quality of fermentation process. The experimental silages had a better sensory evaluation than the control ones. In silages treated chemically with a mixture of acids, statistically significantly (P < 0.01) higher dry matter content, lowest pH value, the value of lactic acid and the lowest content of all acids in dry matter were found after 180 days of storage from the beginning of the experiment. The statistically significantly (P < 0.01) highest lactic acid content (43.39 ± 1.25 g/kg DM) was determined in the control pressed silage. The highest LA/VFA ratio (1.40 ± 0.18) was calculated for non-pressed experimental silage (D -3 l/t of KEM). As compared with untreated control the highest percentage (P < 0.01) of lactic acid and of all fermentation acids was found out in silage D treated with 3 l/t of KEM (58.18 ± 0.47 g/kg DM). Undesirable butyric and propionic acids were not found in chemically treated silage samples (C, D, E, F). However, the highest (P < 0.01) contents of butyric acid (26.37 ± 0.91 g/DM) and propionic acid (4.58 ± 0.78 g/DM) were measured in untreated non-pressed silage samples (B). The highest (P < 0.01) contents of acetic acid and ethanol were found in control silage samples. The quality of these silages was evaluated as very low.

The effects of wilting and biological and chemical additives on the fermentation process in field pea silage

“…Fraser et al (2001) reported that fermentation in pea silage was improved by the application of an inoculant containing Lactobacillus plantarum. The decrease in the production of lactic acid in unwilted silage caused by the chemical additive when compared to the control (P < 0.05) and inoculant (P < 0.001) treatments in the present study is in agreement with results published by Doležal et al (2005).…”

Utilization of Sugar Beet Pulp as Biosorbent for Molassigenic Metal Ions: Kinetic Study of Batch Biosorption

“…These results were in agreement with those presented by Maravić et al indicated dry matter content of sugar beet pulp was 31.50% [6]. Additionally, Doležal et al reported dry matter of pressed sugar beet pulp was 23-24% and still containing small amount of sucrose 3.50% A small extent of sucrose is still expected to remain in the SBP after the extraction and pressing process [32]. Due to certain amount of residual sucrose in the SBP there are possibilities for emerging technologies as bioethanol production and biorefinery [33,34].…”

Potential determinants of Clostridium spp. occurrence in Polish silage

“…Silage as roughage represents the basis of the beef cattle diet. To prepare good quality silage, all the technological procedures in best production practice should be carried out and all principles applied ( 5 ). The overarching ensiling principle consists in fast inactivation of enzyme systems and termination of microbial activity.…”