Electrochemical immunosensor for point-of-care detection of soybean Gly m TI allergen in foods.
Talanta
; 268(Pt 1): 125284, 2024 Feb 01.
Article
in En
| MEDLINE
| ID: mdl-37866307
ABSTRACT
Soybean is a legume with high technological functionality, commonly used by the food industry as an ingredient in different products. However, soybean is an allergenic food whose undeclared presence in processed foods may represent a public health risk. In this work, it was developed an efficient electrochemical immunosensor, targeting the soybean trypsin inhibitor (Gly m TI) allergen using commercial anti-Gly m TI IgG, aiming at detecting/quantifying minute amounts of soybean in different food formulations. For this purpose, model mixtures of different foods (sausages, cooked-hams, biscuits) were prepared to contain known amounts of soybean protein isolate (100,000-0.1 mg kg-1) and submitted to specific thermal treatments (autoclaving, oven-cooking, baking). The electrochemical immunosensor allowed quantifying down to 0.1 mg kg-1 of soybean in the three food matrices, raw and processed (0.0012 mg of Gly m TI/kg of matrix). Accordingly, the immunosensor is suitable for detecting traces of soybean in raw, processed, and complex foods, thus protecting 99 % of soybean-allergic patients.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Glycine max
/
Biosensing Techniques
Limits:
Humans
Language:
En
Journal:
Talanta
Year:
2024
Document type:
Article
Affiliation country:
Country of publication: