L-arginine biosensors: A comprehensive review

Area of Science:

• Biochemistry
• Food Science
• Analytical Chemistry

Background:

• Arginine, known as the "Miracle Molecule," possesses significant healing properties and plays crucial roles in human physiology, including nitric oxide synthesis and tumor growth.
• Accurate detection of L-arginine in fermented products like wine is essential for quality control, as high levels can lead to the formation of toxic ethyl carbamate (EC).

Purpose of the Study:

• To review the physiological and food-related significance of arginine.
• To discuss various techniques for arginine detection, with a focus on biosensor development and performance factors.
• To highlight challenges in current arginine detection methods, such as selectivity and real-time analysis.

Main Methods:

• Review of existing literature on arginine detection techniques.
• Analysis of biosensor technologies for arginine quantification.
• Discussion of transducer types used in arginine biosensors (optical, electrochemical, etc.).

Main Results:

• Biosensor technology provides rapid, sensitive, and specific methods for arginine detection.
• Ammonia formation is a key indicator in many arginine biosensor designs.
• Challenges remain in achieving real-time analysis and overcoming interference from compounds like urea.

Conclusions:

• Arginine detection is critical for both food safety (preventing EC) and clinical diagnostics.
• Advancements in biosensor technology are crucial for improving the accuracy and efficiency of arginine monitoring.
• Further research is needed to address limitations in selectivity and real-time capabilities of arginine biosensors.