Concept for Recycling Waste Biomass from the Sugar Industry for Chemical and Biotechnological Purposes.
Molecules
; 22(9)2017 Sep 13.
Article
in En
| MEDLINE
| ID: mdl-28902173
ABSTRACT
The objective of this study was to develop a method for the thermally-assisted acidic hydrolysis of waste biomass from the sugar industry (sugar beet pulp and leaves) for chemical and biotechnological purposes. The distillates, containing furfural, can be catalytically reduced directly into furfurayl alcohol or tetrahydrofurfuryl alcohol. The sugars present in the hydrolysates can be converted by lactic bacteria into lactic acid, which, by catalytic reduction, leads to propylene glycol. The sugars may also be utilized by microorganisms in the process of cell proliferation, and the biomass obtained used as a protein supplement in animal feed. Our study also considered the effects of the mode and length of preservation (fresh, ensilage, and drying) on the yields of furfural and monosaccharides. The yield of furfural in the distillates was measured using gas chromatography with flame ionization detector (GC-FID). The content of monosaccharides in the hydrolysates was measured spectrophotometrically using enzymatic kits. Biomass preserved under all tested conditions produced high yields of furfural, comparable to those for fresh material. Long-term storage of ensiled waste biomass did not result in loss of furfural productivity. However, there were significant reductions in the amounts of monosaccharides in the hydrolysates.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Biotechnology
/
Biomass
/
Sugars
/
Recycling
/
Industrial Waste
Language:
En
Journal:
Molecules
Journal subject:
BIOLOGIA
Year:
2017
Document type:
Article
Affiliation country:
Poland