Extraction of Cellulose from Ulva lactuca Algae and Its Use for Membrane Synthesis

Green algae are a sustainable source of biopolymers for the global demand due to their high photosynthetic efficiency. This article describes the extraction of cellulose from plant systems represented by species. In order to extract various substances, algae were finely ground with the help of solve...

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Bibliographic Details
Published in:Polymers 2023-12, Vol.15 (24), p.4673
Main Authors: Patrichi, Claudia Ana Maria, Cioroiu Tirpan, Doinita Roxana, Aljanabi, Ali A Abbas, Trica, Bogdan, Gifu, Ioana Catalina, Dobre, Tanase
Format: Article
Language:English
Subjects:
Alcohol
Algae
Biopolymers
Carbohydrates
Caustic soda
Cellulose
Chlorophyll
Composite materials
Ethanol
Hydrochloric acid
Hydrogels
Membranes
Polymers
Sodium
Solvents
Stabilization
Swelling
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Summary:Green algae are a sustainable source of biopolymers for the global demand due to their high photosynthetic efficiency. This article describes the extraction of cellulose from plant systems represented by species. In order to extract various substances, algae were finely ground with the help of solvents (liquid media). This was carried out to achieve the necessary conditions that help reduce the resistance this phase shows in regard to the transport and transfer of the species being extracted. The highest yield of extracted cellulose (20,944%) was obtained for the following factors: S/L = 1/20; conc. ethanol = 90%, conc. salts = 4 g/L. Hydrogel membranes are a unique class of macromolecular networks that contain a large fraction of aqueous solvent within their structure. With the cellulose extracted from algae, we obtained membranes which underwent the process of swelling in liquid media (ethyl alcohol) of different concentrations. The swelling of biocellulose membranes in alcoholic solutions of high concentrations was investigated. It was observed that the process of absorption of the alcoholic solution by the membrane occurred rapidly in the first part. After stabilization, the membranes continued to absorb at a slower rate until stabilization or saturation concentration was reached.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15244673