FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (22 ): 383-386.doi: 10.7506/spkx1002-6300-200922091

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Effect of Electron Beam Irradiation on Sterilization and Sensory Quality of Tegillarca granosa

LI Chao1,YANG Wen-ge1,*,XU Da-lun1,ZHANG Chun-fang1,SHI Hui-dong2   

  1. 1. Faculty of Life Science and Biotechnology, Ningbo University, Ningbo 315211, China;
    2. Ningbo Superpower High-Tech Co. Ltd., Ningbo 315470, China
  • Received:2009-08-20 Online:2009-11-15 Published:2010-12-29
  • Contact: YANG Wen-ge E-mail:yangwene@nbu.edu.cn

Abstract:

Tegillarca granosa was treated with electron beam irradiation, and its effect on total plate count, coliform count and sensory quality of Tegillarca granosa were studied. Results showed that electron beam irradiation could effectively reduce the total plate count and coliform bacteria in Tegillarca granosa, and the total plate count decreased gradually with the radiation dose at 0, 1, 3, 5, 7, 9 kGy. The D10 value was 3.12 kGy when the total plate count of Tegillarca granosa was 3.10×105 CFU/g before irradiation. The sensory quality of Tegillarca granosa was effected by the radiation dosage, and off flavor appeared in Tegillarca granosa treated with 7 or 9 kGy radiation. Thus 3~5 kGy was the optimal dosage, and shelf life of Tegillarca granosa treated with 3~5 kGy radiation could be extended from 5 d to 15~19 d.

Key words: Tegillarca granosa, electron beam irradiation, steri lize, sensory evaluation

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