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Title: L-asparaginase-based biosensors
Author: Nunes, João C. F.
Cristóvão, Raquel O.
Santos-Ebinuma, Valéria C.
Faria, Joaquim L.
Silva, Cláudia G.
Neves, Márcia C.
Freire, Mara G.
Tavares, Ana P. M.
Keywords: L-asparaginase
Issue Date: 20-Aug-2021
Publisher: MDPI
Abstract: L-asparaginase (ASNase) is an aminohydrolase enzyme widely used in the pharmaceutical and food industries. Although currently its main applications are focused on the treatment of lymphoproliferative disorders such as acute lymphoblastic leukemia (ALL) and acrylamide reduction in starch-rich foods cooked at temperatures above 100 ºC, its use as a biosensor in the detection and monitoring of L-asparagine levels is of high relevance. ASNase-based biosensors are a promising and innovative technology, mostly based on colorimetric detection since the mechanism of action of ASNase is the catalysis of the L-asparagine hydrolysis, which releases L-aspartic acid and ammonium ions, promoting a medium pH value change followed by color variation. ASNase biosensing systems prove their potential for L-asparagine monitoring in ALL patients, along with L-asparagine concentration analysis in foods, due to their simplicity and fast response.
Peer review: yes
DOI: 10.3390/encyclopedia1030065
ISSN: 2673-8392
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Appears in Collections:CICECO - Artigos
DQ - Artigos

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