PMID- 21845146 OWN - NLM STAT- MEDLINE DCOM- 20111219 LR - 20240109 IS - 1660-4601 (Electronic) IS - 1661-7827 (Print) IS - 1660-4601 (Linking) VI - 8 IP - 7 DP - 2011 Jul TI - Pulsed ultraviolet light reduces immunoglobulin E binding to Atlantic white shrimp (Litopenaeus setiferus) extract. PG - 2569-83 LID - 10.3390/ijerph8072569 [doi] AB - Pulsed ultraviolet light (PUV), a novel food processing and preservation technology, has been shown to reduce allergen levels in peanut and soybean samples. In this study, the efficacy of using PUV to reduce the reactivity of the major shrimp allergen, tropomyosin (36-kDa), and to attenuate immunoglobulin E (IgE) binding to shrimp extract was examined. Atlantic white shrimp (Litopenaeus setiferus) extract was treated with PUV (3 pulses/s, 10 cm from light source) for 4 min. Tropomyosin was compared in the untreated, boiled, PUV-treated and [boiled+PUV]-treated samples, and changes in the tropomyosin levels were determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). IgE binding of the treated extract was analyzed via immunoblot and enzyme-linked immunosorbent assay (ELISA) using pooled human plasma containing IgE antibodies against shrimp allergens. Results showed that levels of tropomyosin and IgE binding were reduced following PUV treatment. However, boiling increased IgE binding, while PUV treatment could offset the increased allergen reactivity caused by boiling. In conclusion, PUV treatment reduced the reactivity of the major shrimp allergen, tropomyosin, and decreased the IgE binding capacity of the shrimp extract. FAU - Shriver, Sandra AU - Shriver S AD - Department of Food Science & Human Nutrition, University of Florida, P.O. Box 110370, 359 FSHN Bldg. Newell Drive, Gainesville, FL 32611, USA. sandrakshriver@ufl.edu FAU - Yang, Wade AU - Yang W FAU - Chung, Si-Yin AU - Chung SY FAU - Percival, Susan AU - Percival S LA - eng PT - Evaluation Study PT - Journal Article DEP - 20110624 PL - Switzerland TA - Int J Environ Res Public Health JT - International journal of environmental research and public health JID - 101238455 RN - 0 (Allergens) RN - 0 (Arthropod Proteins) RN - 0 (Tropomyosin) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Allergens/immunology/radiation effects MH - Animals MH - Arthropod Proteins/immunology/*radiation effects MH - Dose-Response Relationship, Radiation MH - Electrophoresis, Polyacrylamide Gel MH - Food Handling/*methods MH - Food Hypersensitivity/immunology/*prevention & control MH - Food Preservation/instrumentation/methods MH - Humans MH - Immunoglobulin E/metabolism MH - Penaeidae/*chemistry/immunology MH - Shellfish/*radiation effects MH - Solubility MH - Tropomyosin/immunology/*radiation effects MH - *Ultraviolet Rays PMC - PMC3155317 OTO - NOTNLM OT - IgE antibodies OT - PUV OT - allergen OT - allergy OT - pulsed ultraviolet light OT - shrimp OT - tropomyosin EDAT- 2011/08/17 06:00 MHDA- 2011/12/20 06:00 PMCR- 2011/07/01 CRDT- 2011/08/17 06:00 PHST- 2011/05/18 00:00 [received] PHST- 2011/06/19 00:00 [accepted] PHST- 2011/08/17 06:00 [entrez] PHST- 2011/08/17 06:00 [pubmed] PHST- 2011/12/20 06:00 [medline] PHST- 2011/07/01 00:00 [pmc-release] AID - ijerph8072569 [pii] AID - ijerph-08-02569 [pii] AID - 10.3390/ijerph8072569 [doi] PST - ppublish SO - Int J Environ Res Public Health. 2011 Jul;8(7):2569-83. doi: 10.3390/ijerph8072569. Epub 2011 Jun 24.