A facile water-induced complexation of lycopene and pectin from pink guava byproduct: Extraction, characterization and kinetic studies.

Autor: Nagarajan J; Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia., Krishnamurthy NP; World Pranic Healing Foundation, India Research Center, 4(th) Main, Saraswathipuram, Mysore 570009, Karnataka, India., Nagasundara Ramanan R; Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia., Raghunandan ME; Civil Engineering Discipline, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia., Galanakis CM; Department of Research and Innovation, Galanakis Laboratories, Skalidi 34, GR-73131 Chania, Greece., Ooi CW; Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia. Electronic address: ooi.chien.wei@monash.edu.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2019 Oct 30; Vol. 296, pp. 47-55. Date of Electronic Publication: 2019 May 21.
DOI: 10.1016/j.foodchem.2019.05.135
Abstrakt: The redfleshed pulp discarded from pink guava puree industry is a rich source of lycopene and pectin. In this study, we developed a facile extraction process employing water as the primary extraction medium to isolate the lycopene and pectin from pink guava decanter. When the decanter was suspended in water, the complexation of lycopene and pectin formed the cloudy solution, where the colloidal complexes were recovered through centrifugation. The presence of lycopene and pectin in the complex was confirmed by the spectroscopic, microscopic and chromatographic analyses. The lycopene fractionated from the complexes had a purity level of 99% and was in all-trans configuration. The colloidal complexes yielding the highest concentration of lycopene was obtained at pH 7, 1% (w/v) solid loading and 25 °C. The experimental data of time-course extraction of lycopene-pectin complex were best fitted with two-site kinetic model, hinting the fast- and slow-release phases in the extraction process.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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