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| Author(s): |
Tatiana Giselle Guimarães Lopes
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Piracicaba. |
| Institution: | Universidade de São Paulo (USP). Centro de Energia Nuclear na Agricultura (CENA/STB) |
| Defense date: | 2012-06-11 |
| Examining board members: |
Solange Guidolin Canniatti Brazaca;
Valter Arthur;
Benedito Correa;
Ariana Campos Yang
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| Advisor: | Solange Guidolin Canniatti Brazaca; Valter Arthur |
| Abstract | |
The hypersensitivity to foods is common in children and adults. The shrimp in spite of very appreciated is a food potentially capable to unchain allergic reactions genetically in individuals per disposed. The major allergen in shrimp is the tropomiosin. The aim of this study was to evaluate the effects of gamma irradiation on IgE reactivity to shrimp tropomyosin (Litopenaeus vannamei) and evaluate the physical and chemical changes and sensory product, induced by this process. The samples will be constituted of thawed and freeze-dried shrimp submitted to different radiation doses: 0 (test.), 5, 10 and 15 kGy. Was used for irradiating an irradiation multipurpose semi-industrial sector. 60 Co. The dose rate used was 7.5 kGy / hr. The samples, later to the irradiation, they will go by analyses for allergens determination using the techniques: ELISA and Imunobloting. Acceptance test will be done to verify physic-chemical and sensorial attributes after irradiation. Datas will be evaluated by ANOVA and Tukey test (p<=0.05). The gamma radiation doses applied in this experiment did not change significantly IgE reactivity, color, cholesterol, fatty acid content and the acceptance of shrimp studied. It was concluded that the gamma radiation in these doses, although not causing changes that compromise the quality of the product cannot be indicated for control of allergens in shrimp because it presented a low impact on allergenic protein structure modification (AU) | |
| FAPESP's process: | 08/08182-2 - Application of the radiation in the inhibition of alimentary allergy the shrimp(Litopenaeus vannamei). |
| Grantee: | Tatiana Giselle Guimarães Lopes |
| Support Opportunities: | Scholarships in Brazil - Doctorate |