Combined recovery of polysaccharides and polyphenols from Rosa damascena wastes
| Autor: | Nikoleta Yantcheva, Petko Denev, Vasil T. Shikov, Nenko Nenov, Ivelina Vasileva, Ivan Panchev, Anton Slavov |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
biology Chemistry Extraction (chemistry) food and beverages Biomass 04 agricultural and veterinary sciences 02 engineering and technology 021001 nanoscience & nanotechnology Pulp and paper industry biology.organism_classification Polysaccharide 040401 food science law.invention Rose oil Rosa × damascena 0404 agricultural biotechnology law Polyphenol Botany 0210 nano-technology Sugar Agronomy and Crop Science Essential oil |
| Zdroj: | Industrial Crops and Products. 100:85-94 |
| ISSN: | 0926-6690 |
| DOI: | 10.1016/j.indcrop.2017.02.017 |
| Popis: | The industrial production of rose oil generates huge amounts of waste, and its potential for integrated utilization is underexplored. A combined method for the recovery of biologically active substances from waste rose (Rosa damascena Mill.) biomass was investigated and proposed in the present study. It comprised preliminary ethanol treatment of the wastes aimed at the extraction of polyphenol substances and subsequent fractional extraction of polysaccharides. The results suggested that the optimal ethanol concentration for integrated recovery was 70%. Different polysaccharide fractions were extracted and investigated for the first time from the alcohol insoluble residues (AIRs) by consecutive fractional extraction with water, oxalate, diluted acid and alkali. The neutral sugar compositions of the polysaccharides suggested that they were pectic-type polysaccharides. The differential thermal analysis of the isolated polysaccharides showed that their thermal stability was in the 220–230 °C range. The overall yield of polysaccharides (25.3%) and polyphenols (4.4%) suggested that the waste rose biomass could serve as a valuable source of biologically active substances. As a result of the present study, a technological scheme for combined waste rose biomass utilization was proposed. On the basis of the technological operations and the energy assessment, calculations of the average costs of combined polyphenols and polysaccharides recovery were presented. An additional advantage of the integrated approach is that it could be further combined with other methods and applied to other essential oil plant wastes. |
| Databáze: | OpenAIRE |
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