Determination of Pepsin-Susceptible and Pepsin-Resistant Epitopes in Native and Heat-Treated Peanut Allergen Ara h 1

2008 ◽  
Vol 56 (6) ◽  
pp. 2223-2230 ◽  
Author(s):  
Evelien L. van Boxtel ◽  
Stef J. Koppelman ◽  
Lambertus A. M. van den Broek ◽  
Harry Gruppen
Keyword(s):  
Peanut Allergen ◽  
Ara H 1 ◽  
Heat Treated

scholarly journals A Voltammetric Nanodiamond-Coated Screen-Printed Immunosensor for The Determination of a Peanut Allergen in Commercial Food Products

2021 ◽  
Vol 5 (1) ◽  
pp. 10
Author(s):  
André Carvalho ◽  
Maria Freitas ◽  
Henri P. A. Nouws ◽  
Cristina Delerue-Matos
Keyword(s):  
Alkaline Phosphatase ◽  
Food Products ◽  
Carbon Electrodes ◽  
Linear Sweep ◽  
Peanut Allergen ◽  
Ara H 1 ◽  
Sandwich Type ◽  
Cereal Bars ◽  
Screen Printed

A voltammetric immunosensor was developed to quantify a major peanut allergen, Ara h 1, using screen-printed carbon electrodes (SPCE) as transducers. A sandwich-type immunoassay was performed on nanodiamond-coated SPCEs using an alkaline phosphatase-labeled detection antibody and a mixture containing an enzymatic substrate (3-indoxyl phosphate) and silver nitrate. The immunological interaction was detected through the (linear sweep) voltammetric stripping of the enzymatically deposited silver. The immunosensor’s applicability was evaluated by analyzing breakfast cereals, cookies, and energy and cereal bars. Ara h 1 was successfully tracked in these commercial food products.

Peanut allergen (ara h 1) detection in foods containing chocolate

2003 ◽  
Vol 111 (2) ◽  
pp. S194 ◽  
Author(s):  
R. Vinton ◽  
M.D. Chapman ◽  
A. Pomes
Keyword(s):  
Peanut Allergen ◽  
Ara H 1

589 Characterization of the major peanut allergen Ara h 1 on protein level

1996 ◽  
Vol 97 (1) ◽  
pp. 330-330
Author(s):  
W BECKER ◽  
L BUSCHMANN ◽  
M SCHLAAK
Keyword(s):  
Protein Level ◽  
Peanut Allergen ◽  
Ara H 1

The Defect Structure of CdO

1987 ◽  
Vol 42 (6) ◽  
pp. 746-749 ◽  
Author(s):  
Jenő Juhász ◽  
Sarolta Igaz ◽  
Béla Jóvér ◽  
Zoltán G. Szabó
Keyword(s):  
Solid Solution ◽  
Chemical Analysis ◽  
Defect Structure ◽  
Direct Determination ◽  
Good Reproducibility ◽  
Heat Treated ◽  
Defect Sites

Abstract Defect Sites of CdO, Reducibility, Analysis Three procedures of chemical analysis are proposed for the direct determination of excess Cd in CdO: a spectrophotometric, a titrimetric and a gravimetric one, for 0-1500 ppm, 500-50,000 ppm and above 5%, respectively. The good reproducibility and reliability is illustrated by results referring to CdO samples heat-treated in H 2 and in air between 100 and 350 °C. Reduction in H2 increases the concentration of excess Cd up to 4000 ppm, above that separate Cd phase forms. The excess Cd in solid solution (interstitial sites) is more resistant against re-oxidation, than the bulk Cd phase.

scholarly journals Purification of Recombinant Peanut Allergen Ara h 1 and Comparison of IgE Binding to the Natural Protein

Foods ◽  
2014 ◽  
Vol 3 (4) ◽  
pp. 642-657 ◽  
Author(s):  
Barry Hurlburt ◽  
Jane McBride ◽  
Jacqueline Nesbit ◽  
Sanbao Ruan ◽  
Soheila Maleki
Keyword(s):  
Peanut Allergen ◽  
Natural Protein ◽  
Ige Binding ◽  
Ara H 1
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