Effect of acylation and enzymatic modification on pea proteins allergenicity

• Autorzy: Szymkiewicz A. , Jedrychowski L.
• Języki publikacji: EN

Abstrakty

EN

In the study chemical modifications (acetylation or succinylation) and enzymatic hydrolysis (with Alcalase) were applied in order to reduce the allergenicity of particular pea proteins. Application of Alcalase after acylation lowered the immunoreactive properties of pea vicilin from 14-17% down to 2-2.5% as compared to that of the native fraction. Under these conditions, the immunoreactivity of legumin and albumins was reduced by nearly 100%. Proteolysis of pea proteins under conditions optimal for Alcalase decreased the immunoreactivity of vicilin to about 24%. Application of acetic anhydrides for further modification led to lowering their level to 6% and 9%, during acetylation and succinylation, respectively. The immunoreactivity of pea legumin and albumins was reduced down to 1-3%. The lower immunoreactive properties of particular pea proteins do not correspond with lower allergenicity of total proteins. Of all the applied methods acetylation of previously hydrolysed proteins proved to be the most effective; it resulted in about 70% allergenicity decrease (on the average) of thus modified samples as compared to native pea proteins. Yet, the reaction showed an individual character and may be different in individual patients.

Słowa kluczowe

EN

protein acylation; chemical modification; protein; enzymatic modification; allergenicity; pea protein; enzymatic hydrolysis; allergen

• Wydawca: -
• Czasopismo: Polish Journal of Food and Nutrition Sciences
• Rocznik: 2008
• Tom: 58
• Numer: 3
• Opis fizyczny: p.345-350,fig.,ref.

Twórcy

autor

Szymkiewicz A.

• Polish Academy of Sciences in Olsztyn, Tuwima 10, 10-747 Olsztyn, Poland

autor

Jedrychowski L.

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