Preliminary Studies on the Quality Changes of Eggplant as Influenced by Active Packaging

  • Zuo, Li (Dept. of Food Sci. & Engr., Daegu University) ;
  • Seog, Eun-Ju (Dept. of Food Sci. & Engr., Daegu University) ;
  • Lee, Jun-Ho (Dept. of Food Sci. & Engr., Daegu University) ;
  • Rhim, Jong-Whan (Dept. of Food Eng., Mokpo National University)
  • Published : 2006.12.30

Abstract

The effects of active packaging on the surface stiffness, mass, volume, density and weight changes of fresh as well as stored eggplant were studied at 11 and $25^{\circ}C$ for 10 days with active packaging material Type 1 and 2 and control. Mass, volume, and surface stiffness of eggplant decreased linearly throughout the storage period regardless of storage conditions; while the mass density showed a reverse trend in the ease of $11^{\circ}C$ storage. Reduction rate of mass, mass density and weight was observed minimum at $25^{\circ}C$ storage temperature with active packaging Type 1. The weight of eggplant decreased at a higher rate in the initial 4 days compared to that in the later period of storage regardless of storage temperature and type of packaging.

Keywords

References

  1. Mohammed, M., and Sealy, L., Extending the shelf life of melongene (Solanum melongena L.) using polymeric films. Tropical Agriculture, 63:36-40 (1986)
  2. Jha, S. N., and Matsuoka, T., Determination of freshness of eggplant using some physical parameters. ASAE paper No. 901-6096 (2001)
  3. Jha, S. N., Matsuoka, T., and Miyauchi, K., Surface gloss and weight of eggplant during storage. Biosystems Engineering, 81(4):407-412 (2002) https://doi.org/10.1006/bioe.2002.0044
  4. Kalloo, G. Eggplant (Solanum melongena) in Genetic Improvement of Vegetable Crops. Ed, Kalloo, G., p. 587-604, Pergamon Press, Oxford (1993)
  5. Kalloo, G. Eggplant (Solanum melongena) in Genetic Improvement of Vegetable Crops. Ed, Kalloo, G., p. 587-604, Pergamon Press, Oxford (1993)
  6. Concellon A., Anon M. C., and Chaves A. R., Effect of chilling on ethylene production in eggplant fruit. Food Chem. 92:63-69 (2005) https://doi.org/10.1016/j.foodchem.2004.04.048
  7. Wang, C. Y., Chilling injury of tropical horticultural commodities, Hort. Sci. 29:986-988 (1994)
  8. Paull, E. R., Effect of temperature and relative humidity on fresh commodity quality, Postharvest Biology and Technology, 15:63-277 (1999)
  9. Fallik, E., Naomi, T. G., Shoshana, G. and Davidson, H., Prolonged low temperature storage of eggplants in polystylene bags, Postharvest Biology and Technology, 5:83-89 (1995) https://doi.org/10.1016/0925-5214(94)00010-P
  10. Leisbeth, J., Frank, D., Tom, D. R. and Johan, D., Designing equilibrium modified atmosphere packages for fresh-cut vegetables subjected to changes in temperature, Lebensmittel-Wissenschaft und- Technologie, 33:78-87 (2000)
  11. Narvaiz, P., Some physiochemical measurements on mushrooms (Agaricus campestris) irradiated to extended shelf life. Food Science and Technology, 27:7-10 (1994) https://doi.org/10.1006/fstl.1994.1002
  12. Jha, S. N., Physical and hygroscopic properties of makhana. J. Agri. Eng. Res. 72(2):145-150 (1999) https://doi.org/10.1006/jaer.1998.0356
  13. Nielsen, S. S., Introduction to the Chemical Analysis of Foods. Ed, Nielsen, S. S., p. 93-111, Jones and Barlett, Boston (1994)
  14. Li, P. Y., and Barth M. M., Impact of edible coating on nutritional and physiological changes in lightly-processed carrots. Postharvest Biology and Technology 14:51-60 (1998) https://doi.org/10.1016/S0925-5214(98)00020-9
  15. Rocha, A. M. C. N., and Morais A. M. M. B., Shelf life of minimally processed apple (cv. Jonagored) determined by colour changes. J. Food Cont. 21:13-28 (2003)
  16. Nourian F., Ramaswamy H. S. and Kushalappa A. C., Kinetic changes in cooking quality of potatoes stored at different temperatures. J. Food Eng. 60:257-266 (2003) https://doi.org/10.1016/S0260-8774(03)00046-3
  17. Kim, J. S., Lee Y. K., Song, H. S., Park, H. S. and Kim, J. K., Effects of low dose ionizing radiation on the growth and yield of soybean cultivars. Korean J.Environ. Agric. 18:66-69 (1999)
  18. Kim, J. S., Lee, Y. K., Park, H. S., Back, M. H. and Chung, K. H., Effects of low dose gamma radiation on the early growth and physiological activity of gourd (Lagenaria leucantha L.). Korean J. Environ. Agric. 19:142-146 (2000)
  19. Baek, M. H., Kim, J. S., Lee, Y. K., Lee, Y. B. and Yang, S. G., Effects of low dose gamma radiation and seed moisture content on germination and early growth of vegetable crops. Korean J. Environ. Agric. 22:215-219 (2003) https://doi.org/10.5338/KJEA.2003.22.3.215