I composti fenolici nelle borlande di barbabietola da zucchero da distilleria. Compuestos fenolicos en melazas de remolacha azucarera.
1996
Maestro Duran R. | Borja R. | Jimenez A.M. | Leon M.
ITALIANO: [Le acque residue di distilleria (borlande) da barbabietola da zucchero (Beta vulgaris var. saccharifera) sono difficili da depurare mediante anaerobiosi per la loro alta concentrazione di composti fenolici, che sono tossici per i batteri responsabili del processo metanogenico. In questo lavoro sono stati identificati i composti fenolici e orto-difenolici. Non sono stati ritrovati meta-difenoli e leucoantocianine. Mediante TLC, reazioni cromatiche, HPLC e spettri UV sono stati isolati e identificati dodici composti fenolici: sei acidi benzoici (gallico, protocatechico, p-idrossibenzoico, salicilico, vanillico e siringico), due acidi cinnamici (p-cumarico e ferulico), tre aldeidi fenoliche (protocatechica, p-idrossibenzoica e vanillina) e un alcol fenolico, il guaiacolo].
Show more [+] Less [-]English. Distiller wastewaters (molasses) from sugar beet (Beta vulgaris var. saccharifera) are difficult to purify by anaerobiosis due to their high concentration of phenolic compounds which are toxic for the bacteria responsible for the methanogenic process. In this work, the phenolic and ortho-diphenolic compounds were identified. Meta-diphenols and leucoanthocyanins were not found. Twelve phenolic compounds were isolated and identified by TLC, coloured reactions, HPLC and UV spectra: six benzoic acids (gallic, protocatechuic, p-hydroxy-benzoic, salicylic, vanillic and syringic), two cinnamic acids (p-coumaric and ferulic), three phenolic aldehydes (protocatechuic, p-hydroxy-benzoic and vanillin) and one phenolic alcohol (guaiacol).
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