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Quality Characteristics of Osmotic Dehydrated Sweet Pumpkin by Different Drying Methods

건조방법에 따른 삼투처리 단호박의 품질 특성

  • Hong, Joo-Heon (Dept. of Food Science and Technology, Kyungpook National University) ;
  • Lee, Won-Young (Dept. of Food Engineering, Sangju National University)
  • 홍주헌 (경북대학교 식품공학과) ;
  • 이원영 (상주대학교 식품공학과)
  • Published : 2004.11.01

Abstract

This study was conducted to develop intermediate material for new processed food from sweet pumpkin. Osmotic dehydration was carried out as pretreatment before drying. After the sweet pumpkins were pretreated under optimized osmotic dehydration conditions, they were dried by three drying methods (hot air drying, vacuum drying and cold air drying). The moisture contents of dried sweet pumpkin products by osmosis treatment (sucrose) and hot air drying, vacuum drying, and cold air drying were 14.48, 14.09 and 13.87%, respectively. Cold air drying preserved more vitamin C content and showed lower color difference than hot air drying and vacuum drying. As a result of microscopic analysis, cold air dried sweet pumpkin was observed regular tissue, while hot air and vacuum dried sweet pumpkins were observed a cell collapse following the loss of water.

References

  1. Wils RBH, Lim JSK, Greenfield H. 1987. Composition of Australian, 39 vegetable fruits. Food Technol Australia 39: 488-498
  2. Heo SJ, Kim JH, Kim JK, Moon KD. 1998. Processing of purees from pumpkin and sweet-pumpkin. Korean J Postharvest Sci Technol 5: 172-176
  3. Pedrosa JF, Casali VWD, Cheng SS, Chitarra MIF, Carvalho VD. 1983. Changes in composition of squashes and pumpkins during storage. Pesquisa Agropecuaria Brasileira 18: 29-35
  4. Akhmedov O. 1982. Pumpkin storage. Kartofel'i Ovoshchi 9: 34-39
  5. Korhec G, Veljkovic S, Vucetic J. 1982. Nutritive and dietetic value of pumpkin (Cucrbita pepo L.) and the possibilites of its use by the food industry. Hrana Ishrana 23: 19-26
  6. Smogyi LP, Luh BS. 1983. Vegetable dehydration. In Commercial fruit processing. 2nd ed. Luh BS, Woodroof JG, eds. AVI Pub Co., Westpost. p 387-473
  7. Holdsworth SD. 1971. Dehydration of food products. J Food Technol 6: 331-336 https://doi.org/10.1111/j.1365-2621.1971.tb01623.x
  8. Labelle RL, Moyer JC. 1966. Dehydrofreezing red tart cherries. Food Technol 20: 1345-1351
  9. Litvin S, Mannheim CH, Miltz J. 1998. Dehydration of carrots by a combination of freeze-drying, microwave heating and vacuum drying. J Food Eng 36: 103-111 https://doi.org/10.1016/S0260-8774(98)00054-5
  10. Christopher GJ. 1997. Industrial drying of food. Blackie Academic & Professional, New York. p 1-6
  11. Yang ST. 1997. Preparation of seasoned and semi-dried horse mackerel by cold air drying and quality of its product during partially frozen storage. Korean J Food Sci Technol 29: 925-931
  12. Ponting JD, Watters GG, Forrey RR, Jackson R, Stanley WR. 1966. Osmotic dehydration of fruits. Food Technol 20: 1365-1368
  13. Kim MH. 1990. Mass transfer and optimum processing condition for osmotic concentration of potatoes prior to air dehydration (in Korean). Korean J Food Sci Technol 22: 497-502
  14. Dixon GM, Jen JJ. 1977. Changes of sugars and acids of osmovac-dried apple slices. J Food Sci 42: 1126-1127 https://doi.org/10.1111/j.1365-2621.1977.tb12684.x
  15. Lee BW, Shin GJ, Kim MH, Choi CU. 1989. Effects of pretreatment before air drying on the quality of carrot flake (in Korean). Korean J Food Sci Technol 21: 430-434
  16. Heldman DR, Singh RP. 1981. Food process engineering. The AVI Publishing Co., Inc., Connecticut, USA. p 261-278
  17. Kim MM, Toledo RT. 1987. Effect of osmotic dehydration and high temperature fluidized bed drying on properties of dehydrated rabbiteye bluberries. J Food Sci 52: 980-984 https://doi.org/10.1111/j.1365-2621.1987.tb14256.x
  18. Youn KS, Lee JH, Choi YH. 1996. Changes of free sugar and organic acid in the osmotic dehydration process of apples. Korean J Food Sci Technol 28: 1095-1103
  19. Yang CST, Atallah WA. 1985. Effect of four drying methods on the quality of intermediate moisture moisture low bush blueberries. J Food Sci 50: 1233-1237 https://doi.org/10.1111/j.1365-2621.1985.tb10450.x
  20. Saurel R, Raoult WAL, Rios G, Guilbert S. 1994. Mass transfer phenomena during osmotic dehydration of apple. I. Fresh plant tissue. Inter J Food Sci Technol 29: 531-542
  21. Yoon KY, Kim MH, Lee KH, Shin SR, Kim KS. 1999. Development and quality of dried dried cherry-tomatoes. J korean Soc Food Sci Nutr 28: 1283-1287
  22. Lerici CR, Dinnavaria G, Rosa MD, Bartducci L. 1985. Osmotic dehydration of fruit: Influence of osmotic agents on drying behavior and product quality. J Food Sci 50: 1217- 1219 https://doi.org/10.1111/j.1365-2621.1985.tb10445.x
  23. Flink JM. 1980. Dehydrated carrot slices: Influence of osmotic concentration on drying behavior and product quality. In Food process engineering. Applied Sci Publishers Ltd, London. p 412-418
  24. Cho DJ, Hur JW, Lee MK. 1989. Drying and shrinking rate equation of root vegetables. Korean J Food Sci Technol 21: 212-217

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