Beyond cellulose extraction: Recovery of phytochemicals and contaminants to revalorize agricultural waste

Most common cellulose extraction methods use alkaline conditions to break down lignin structure. Ferulic and gallic acids as well as rutin, luteolin or tannins are found in peels, seeds, leaves and pomace. Traditional alkaline cellulose extraction generates an effluent commonly known as black liquor...

Full description

Saved in:
Bibliographic Details
Published in:Bioresource technology reports 2023-02, Vol.21, p.101339, Article 101339
Main Authors: Méndez-Loranca, Eduardo, Vidal-Ruiz, Adolfo Martin, Martínez-González, Oscar, Huerta-Aguilar, Carlos Alberto, Gutierrez-Uribe, Janet Alejandra
Format: Article
Language:English
Subjects:
Agroindustrial waste
Cellulose black liquor
Non-wood cellulose
Phthalates
Polyphenols
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Most common cellulose extraction methods use alkaline conditions to break down lignin structure. Ferulic and gallic acids as well as rutin, luteolin or tannins are found in peels, seeds, leaves and pomace. Traditional alkaline cellulose extraction generates an effluent commonly known as black liquor that contains phytochemicals that can be isolated for multiple applications. Solvent extraction is being substituted by emerging technologies to increase the yield of phytochemicals but for their recovery from black liquor, mostly ethyl acetate partitioning has been used. When the starting purpose of extraction is the recovery of phytochemicals, cellulose rich residues are a by-product used for biofuel production, topical formulations or traditional cellulose substitutes. Along with phytochemicals, Phthalate Acid Esters (PAEs) found in mulching films used for intensive agriculture may be extracted. Therefore, circular economy strategies to revalorize waste not only have an impact on biomass reutilization but also could be an alternative for phthalates remediation. [Display omitted] •Seeds, peels, bagasse, and leaves are sources of phenolic compounds and cellulose.•Cereal residues require hydrolysis for phenolic compounds and cellulose extraction.•Phthalates in soil and vegetables must be separated to reduce their accumulation.•Dibutyl, bis(2-ethylhexyl) and dimethyl phthalates are the most abundant.•Process integration and separation strategies are required to reuse agro-waste.
ISSN:2589-014X
2589-014X
DOI:10.1016/j.biteb.2023.101339