Extraction of Polyphenols and Vitamins Using Biodegradable ATPS Based on Ethyl Lactate

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Maria Eugénia Macedo (Author) FEUP; Pedro Velho (Author) FEUP; Luís Marques (Author) FEUP

Journal

Title: Molecules

Serial No. 3 Vol. 27 No. 969

Final page: 7838

ISSN: 1420-3049

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus

Scientific classification

CORDIS: Technological sciences

FOS: Engineering and technology

Associated Projects

LA LSRE-LCM - Financiamento Plurianual 2020-2023 para a Unidade LA LSRE-LCM Laboratório de Processos de Separação e Reacção - Laboratório de Catálise e Materiais

Other information

Authenticus ID: P-00X-FX0

DOI: 10.3390/molecules27227838

Abstract (EN): The growing human population, together with the inefficient use of natural resources, has been dramatically increasing the production of food waste, which poses serious economic, environmental, and social problems. Being so, it is necessary to increase the efficiency of food consumption so as to reduce its waste and to convert the remaining residues into societal benefits. Since this biowaste is rich in polyphenols and vitamins, it could become the feedstock for the production of important value-added compounds for the pharmaceutical (e.g., food supplements) and cosmetic (e.g., creams and shampoos) industries. In this work, partition studies of one polyphenol (epicatechin) and two B-complex vitamins (cyanocobalamin and nicotinic acid) were performed in biodegradable Aqueous Two-Phase Systems (ATPS) based on ethyl lactate and on organic salts (disodium tartrate, tripotassium citrate, and trisodium citrate) at 298.15 K and 0.1 MPa. The largest partition coefficient (K) and extraction efficiency (E) were obtained for vitamin B12 (K = 78.56, E = 97.5%) for the longest tie line (TLL = 77.66%) in the ATPS {ethyl lactate (1) + tripotassium citrate (2) + water (3)}. All the extractions were obtained with low biomolecule mass losses in quantification (<5%) and after a thorough study of pH influence in the UV-Vis absorbance spectra.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 19