Abstract

ZEGADA FRANCO, Vanesa Y.. PECTIN EXTRACTION FROM ORANGE PEELS WASTE BY MICROWAVE ASSISTED ACID HYDROLYSIS (MWAH). Inv. y Des. [online]. 2015, vol.1, n.15, pp.65-76. ISSN 1814-6333.

A comparison study, at laboratory scale, of two pectin extraction methods using orange peels waste is presented: conventional acid hydrolysis and acid hydrolysis assisted by microwave (MWAH). Extraction times were considerably lower for MWAH. The following optimal values for both methods were determined within the studied ranges: 2.17 for pH and 18:1 for solvent:raw material ratio. The optimal time for HMO was 7 min. An equation that represents the performance of MWAH pectin extraction, reliable within the studied range, was obtained, to estimate the recovery percentage as a function of pH, solvent:raw material ratio and extraction time. By applying this method, a save of energy and time on pectin extraction process is expected.

Keywords : Pectin; Microwave; Acid Hydrolysis; Orange Peels (Citrus cinensis) Waste.

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