Quality Characteristics of Minimally Processed Sweet-pumpkin during Storage

최소가공 단호박 (Cucurbita maxima Duchesne) 제품의 저장 중 품질 특성

  • Published : 2003.03.01

Abstract

The objective of this study was to investigate the effect of browning inhibitor and vacuum packaging on minimally processed sweet pumpkin. The browning inhibitor were lo/e of ascorbic acid, citric acid, NaCl, MgCl$_2$and their combination. For the minimal processing, sweet pumpkin was sliced and strip-cut followed by dipping in the solution of browning inhibitor. Effective browning inhibitors fer slice sweet pumpkin were ascorbic acid, NaCl and MgC1$_2$, and those fer thin strip were combination and ascorbic acid. The hardness of minimally processed sweet-pumpkin repeated increasing and decreasing and decreased in the final of storage. However the change pattern of hardness was different according to cutting method. Magnesium chloride treatment was generally high grade on sensory characteristics. Sweet pumpkin treated with citric acid was distinguished on carbon dioxide generation and oxygen exhaustion.

각종 전처리 및 진공포장이 최소가공한 단호박 제품의 품질 특성에 미치는 영향을 조사하기 위하여 ascorbic acid, citric acid, NaCl, MgC1$_2$및 이들의 혼합조성물(1:1:1:1)을 슬라이스와 채썰기로 최소가공한 단호박에 처리하여 진공 포장한 후 저온저장 하였다. 최소가공 처리에 따른 저장 중 중량감소율은 모든 처리구에서 증가하는 경향을 나타내었으며 슬라이스 처리시 보다 채썰기한 경우 더욱 크게 나타났다. 한편 ascorbic acid 처리구는 전 시료 중에서 가장 큰 중량감소율을 나타내었으며 저장 10일경에 가장 현저한 중량감소율을 보였다. 갈변저해 효과는 슬라이스의 경우 ascorbic acid와 NaCl 및 MgC1$_2$로 처리한 구가, 채썰기의 경우 혼합조성물과 ascorbic acid가 가장 효과적이었다. 저장 중 과육의 경도는 증감을 반복하고 있으나 결론적으로 저장 후기에는 저장 초기에 비해 경도가 감소하였으며 절단 형태에 따라 다른 양상을 나타내어, 슬라이스의 경우 전처리를 행한 경우 오히려 경도가 증가하는 것을 볼 수 있으나 채썰기한 경우 전처리를 행할 경우 경도가 감소가 현저하였다. 최소가공 단호박의 호흡 양상을 살펴보면 이산화탄소의 발생량은 citric acid를 처리한 경우 가장 많았으며 이는 산소 소모량도 가장 높게 나타났다. 또한 ascorbic acid의 경우 저장 초기에는 호흡률이 높았으나 저장 후기로 갈수록 오히려 완화되는 경향을 나타내었다.

Keywords

References

  1. 조재선 (1993) 식품재료학, 문운당, p.162
  2. 정동효 (1998) 식품의 생리활성, 전진문화사, p.95
  3. Heo, S.J., Kim, J.H. and Moon, K.D. (1998) The comparison of food constituents in pnmpkin and sweet-pumpkin, Korean J. Dietary Culture, 13, 92-96
  4. Charles, C.H. and Harold, R.B. (1989) Processing and distribution alternatives for minimally processed fruit and vegetable. Food Technology, 43, 124-127
  5. Watada, A.E., Abe, K. and Yamauchi, N. (1990) Physiology aetivites of partially processed fruits and vegetables. Food Technology, 44, 116-122
  6. Hwang, T.Y., Son, S.M. and Moon, K.D. (2002) Screening of effective browning inhibitors on fresh-cut potatoes. Food Science and Biotechnology, 11(4), 397-400
  7. Gunes, G. and Lee, C.Y. (1997) Color of minimally processed potatoes as affected by modified atmosphere packaging and antibrowning agents. J. Food Sci. 62, 572-582 https://doi.org/10.1111/j.1365-2621.1997.tb04433.x
  8. Weller, A, Sims, C.A., Matthews, R.F., Bates, R.P. and Brecht, J.K. (1997) Browning susceptibility and changes in composition during storage of carambola slices. J. Food Sci. 62, 256-260 https://doi.org/10.1111/j.1365-2621.1997.tb03980.x
  9. Drake, S.R, Fellman, J.K and Nelson, J.W. (1987) Postharvest use of sucrose polyesters for extending the shelf-life of stored 'Golden Delicious' apples. J. Food Sci. 52, 1283-1285 https://doi.org/10.1111/j.1365-2621.1987.tb14063.x
  10. Kim, B.S., Hyun, N.U. and Nahrngoog, B. (1999) Effect of pressure cooling for quality of 'Tsugaru' Apple during Storage at different temperature. Korean J. Postharvest Sci.Technol. 6, 371-375
  11. Lee, K.S., Lee, J.C., Lee, J.K., Han, K.H. and Oh, M.J. (2000) Shelf-life of red chili pepper on MA and CA storage. Korean J. Post. Sci. Tech. 7, 139-144
  12. Oh, D.H., Ham, S.S., Lee, S.Y., Kim, S.H. and Hong, J.K. (1997) Effect of organic acids and packaging on the quality of Aster scaber during storage. Korean J. Food Sci. Tech. 29, 57-64
  13. Park, W.P., Cho, S.H. and Lee, D.S. (1998) Screening of antibrowning agents for minimally processed vegetables. Korean J. Food Sci. Technol. 30, 278-282
  14. Lee, J.B. and Choi, J.U. (1997) Effect of CA storage conditions on the internal breakdown of fuji apple fruits under CA storage. Korean J. Post. Sci. Tech. 4, 227-235
  15. Sapers, G.M., Cooke, P.H., Heidel, A.E., Martin, S.T. and Miller, R.L. (1997) Structural changes related to texture of pre-peeled potatoes. J. Food Sci. 62, 797-803 https://doi.org/10.1111/j.1365-2621.1997.tb15458.x
  16. Moon, K.D. (1999) Screening and application of antibrowning agents for minimal processing of apples. Proceeding in international symposium on storage and distribution of agricultural commodities and their engineering approach by Korean J. Post. Sci. Tech. 91-108