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Catalytic hydrolysis of cellobiose using different acid-functionalised FeO magnetic nanoparticles.

07:00 EST 1st February 2020 | BioPortfolio

Summary of "Catalytic hydrolysis of cellobiose using different acid-functionalised FeO magnetic nanoparticles."

The present study demonstrated the preparation of three different acid-functionalised magnetic nanoparticles (MNPs) and evaluation for their catalytic efficacy in hydrolysis of cellobiose. Initially, iron oxide (FeO)MNPs were synthesised, which further modified by applying silica coating (FeO-MNPs@Si) and functionalised with alkylsulfonic acid (FeO-MNPs@Si@AS), butylcarboxylic acid (FeO-MNPs@Si@BCOOH) and sulphonic acid (FeO-MNPs@Si@SOH) groups. The Fourier transform infrared analysis confirmed the presence of above-mentioned acid functional groups on MNPs. Similarly, X-ray diffraction pattern and energy dispersive X-ray spectroscopy analysis confirmed the crystalline nature and elemental composition of MNPs, respectively. TEM micrographs showed the synthesis of spherical and polydispersed nanoparticles having diameter size in the range of 20-80 nm. Cellobiose hydrolysis was used as a model reaction to evaluate the catalytic efficacy of acid-functionalised nanoparticles. A maximum 74.8% cellobiose conversion was reported in case of FeO-MNPs@Si@SOH in first cycle of hydrolysis. Moreover, thus used acid-functionalised MNPs were magnetically separated and reused. In second cycle of hydrolysis, FeO-MNPs@Si@SOH showed 49.8% cellobiose conversion followed by FeO-MNPs@Si@AS (45%) and FeO-MNPs@Si@BCOOH (18.3%). However, similar pattern was reported in case of third cycle of hydrolysis. The proposed approach is considered as rapid and convenient. Moreover, reuse of acid-functionalised MNPs makes the process economically viable.

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Journal Details

This article was published in the following journal.

Name: IET nanobiotechnology
ISSN: 1751-875X
Pages: 40-46

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Medical and Biotech [MESH] Definitions

An exocellulase with specificity for the hydrolysis of 1,4-beta-D-glucosidic linkages in CELLULOSE and cellotetraose. It catalyzes the hydrolysis of terminal non-reducing ends of beta-D-glucosides with release of CELLOBIOSE.

A disaccharide consisting of two glucose units in beta (1-4) glycosidic linkage. Obtained from the partial hydrolysis of cellulose.

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Biological molecules that possess catalytic activity. They may occur naturally or be synthetically created. Enzymes are usually proteins, however CATALYTIC RNA and CATALYTIC DNA molecules have also been identified.

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