FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (20): 434-438.doi: 10.7506/spkx1002-6630-201020092

• Packaging & Storage • Previous Articles     Next Articles

Effect of Electric Fields on Quality of Mature-green Tomato Fruits during Storage

WANG Yu1,WANG Bao-gang2,LI Li-te3   

  1. 1. College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China;
    2. Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry, Beijing 100093, China;
    3. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • Received:2009-11-26 Revised:2010-06-25 Online:2010-10-25 Published:2010-12-29
  • Contact: WANG Yu E-mail:sxtgwy@126.com

Abstract:

The effect of high voltage electric fields on the after-ripening process and quality during storage of ZhaoYan219 tomatoes (Lycopersicom esculentum) was investigated. The firmness, color and decay index of electric field-treated tomatoes were determined during storage. The optimum conditions of electric field treatment were optimized. The results showed that -200kV/m of intermittent static electric field treatment (2 h/d) and -200~200 kV/m 40 kHz alternating electric field pre-treatment (2 h) delayed significantly the decline of firmness, the change in color from green to red of tomato fruit during storage, and decreased the decay index (P < 0.05), and thus prolonged the storage time of tomatoes. However, continuous treatment of intermittent static field and alternating electric field accelerated the ripening process.

Key words: tomato, electrostatic field, storage quality, physiological characteristics

CLC Number: