Only 5% of the decorticated leaves from Agave sisalana is exploited to produce fiber, while the remaining 95%consists of both a solid and a liquid waste (juice) that are normally discarded. The aim of this work was evaluate phytochemical quantitative differences between wastes of decortication from A. sisalana. Solid waste was dried in a forced circulation oven at 40°C and extracted with water at 80°C for 2 h (7:1 w/v) to obtain a liquid extract (HDSW-LE) and liquid waste submitted to lyophilization (LLW). Phenolic compounds were determined using the Folin-Ciocalteau’s reagent and total flavonoids by the aluminum chloride colorimetric method. Wastes exhibited quantitative differences among them. Wastes of A. sisalana may be availed with good perspectives for pharmaceutical industry.
Total phenols and flavonoids of wastes from Agave sisalana decortication: a project to revitalize the crop of sisal in the Paraíba
CONVERTI, ATTILIO;
2013-01-01
Abstract
Only 5% of the decorticated leaves from Agave sisalana is exploited to produce fiber, while the remaining 95%consists of both a solid and a liquid waste (juice) that are normally discarded. The aim of this work was evaluate phytochemical quantitative differences between wastes of decortication from A. sisalana. Solid waste was dried in a forced circulation oven at 40°C and extracted with water at 80°C for 2 h (7:1 w/v) to obtain a liquid extract (HDSW-LE) and liquid waste submitted to lyophilization (LLW). Phenolic compounds were determined using the Folin-Ciocalteau’s reagent and total flavonoids by the aluminum chloride colorimetric method. Wastes exhibited quantitative differences among them. Wastes of A. sisalana may be availed with good perspectives for pharmaceutical industry.
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