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Pretreatment Characteristics of Potatoes by Soft Steam Treatment

저온스팀 열처리 방식에 따른 감자의 전처리 특성

  • Cheigh, Chan-Ick (Department of Food and Food Service Industry, Kyungpook National University)
  • 최찬익 (경북대학교 식품외식산업학과)
  • Received : 2014.07.08
  • Accepted : 2014.09.02
  • Published : 2014.10.31

Abstract

This study aimed to investigate the effects of various soft steam treatments, namely, forced convection-boiler, forced convection-fan, and natural convection, on the pretreatment characteristics of potatoes. In this study, potatoes were exposed to various cooking conditions, including steaming method, treatment time (0-60 min), and temperature (60, 70, $80^{\circ}C$). Then, changes in temperature, cook value, ascorbic acid content, moisture content, and weight loss in the fresh and steam-treated samples were measured and evaluated. The results clearly showed that natural convective steaming was superior to other treatments in terms of heating characteristics, cook value (FC-b: $46.4{\pm}1.7$, FC-f: $21.8{\pm}1.1$, NC: $52.1{\pm}1.9min$ at $80^{\circ}C$), ascorbic acid content (FC-b: $36.5{\pm}2.7$, FC-f: $28.5{\pm}2.9$, NC: $48.2%{\pm}2.5%$ at $80^{\circ}C$), moisture retention (FCb: $74.6{\pm}0.8$, FC-f: $71.5{\pm}0.5$, NC: $77.6%{\pm}0.4%$ for 60 min at $80^{\circ}C$), and weight loss (FC-b: $13.9{\pm}0.8$, FC-f: $15.6{\pm}0.6$, NC: $10.6%{\pm}0.7%$ for 60 min at $80^{\circ}C$) for thermally processed potatoes.

본 연구는 최근 매우 우수한 가열 매체로 인정받고 있는 저온스팀(soft steam) 열처리 공정의 natural convection (NC) 방식과 forced convection-boiler (FC-b) 및 forced convection-fan (FC-f) 방식을 이용하여 처리온도(60, 70, $80^{\circ}C$) 및 시간(0-60분)에 따른 감자의 전처리 특성을 비교 평가하고자 하였다. 스팀처리 방식에 따른 가열실 내부의 온도변화와 감자 내 외부의 온도변화, 감자의 cook value, ascorbic aicd 및 수분의 함량과 중량감소율의 변화를 관찰한 결과, 모든 처리조건에서 FC-b 및 FC-f의 강제대류 방식에 비해 자연대류의 NC 방식이 이들 전처리 특성에 대해 우수한 결과를 나타냄을 확인할 수 있었다. 따라서, 본 연구의 결과들은 감자의 가공 및 전처리를 위해 현재 사용되고 있는 기존의 열처리 공정에 대한 대안으로써 NC 방식 스팀처리의 높은 효율성 및 산업적 적용에 대한 가능성을 제시하고 있다.

Keywords

References

  1. Hawkes JG. The evolution of cultivated potatoes and their tuberbearing wild relatives. Kultrup-flanze 36: 189-208 (1988)
  2. Salunkhe DK, Kadam SS, Jadhav SJ. Introduction Potato: Production, Processing and Products. CRC Press, Inc., Boca Raton, FL. USA, pp. 1-7 (1991)
  3. Cho HM, Park YE, Cho JH, Kim SY. Historical review of land race potatoes in Korea. J. Korean Soc. Hort. Sci. 44: 838-845 (2003)
  4. Kwon OY, Kim MY, Son CW, Liu XW, Kim HC, Yoon WK, Kim HM, Kim MR. Protein and amino acid composition of domestic potato cultivars. J. Korean Soc. Food Sci. Nutr. 37: 117-123 (2008) https://doi.org/10.3746/jkfn.2008.37.1.117
  5. Mullins E, Milbourne D, Petti C, Doyle-Prestwich BM, Meade C. Potato in the age of biotechnology. Trends Plant Sci. 11: 254-260 (2006) https://doi.org/10.1016/j.tplants.2006.03.002
  6. Cheigh CI, Lee JH, Chung MS. Effects of soft steam treatments on quality characteristics of potatoes. Korean J. Food Nutr. 25: 50-56 (2012) https://doi.org/10.9799/ksfan.2012.25.1.050
  7. Cho HM, Park YE, Cho JH, Kim SY. Historical review of land race potatoes in Korea. J. Korean Soc. Hort. Sci. 44: 838-845 (2003)
  8. Ahn BY, Kim DH, Choi DS. The effects of freeze-dried potato flour addition on the fermentation characteristics of yogurt. Korean J. Food Nutr. 17: 374-381 (2004)
  9. Cheigh CI, Lee JH, Chung MS. Quality characteristics of vegetables by different steam treatments. Korean J. Food Nutr. 24: 464-470 (2011) https://doi.org/10.9799/ksfan.2011.24.3.464
  10. Kim HY, Ko SH, Lee KY. Evaluation of the microbiological and sensory qualities of potatoes by the method of processing in foodservice operations. Korean J. Food Cook. Sci. 23: 615-625 (2007)
  11. Tijskens LML, Waldron KW, Ng A, Ingham L, van Dijk C. The kinetics of pectin methyl esterase in potatoes and carrots during blanching. J. Food Eng. 34: 371-385 (1997) https://doi.org/10.1016/S0260-8774(98)00005-3
  12. Murcia MA, Lopez-Ayerra B, Martinez-Tome M, Vera AM, Garcia-Carmona F. Evolution of ascorbic acid and peroxidase during industrial processing of broccoli. J. Sci. Food Agr. 80: 1882-1886 (2000) https://doi.org/10.1002/1097-0010(200010)80:13<1882::AID-JSFA729>3.0.CO;2-B
  13. Arroqui C, Rumsey TR, Lopez A, Virseda P. Effect of different soluble solids in the water on the ascorbic acid losses during water blanching of potato tissue. J. Food Eng. 47: 123-126 (2001) https://doi.org/10.1016/S0260-8774(00)00107-2
  14. Vittadini E, Massimiliano R, Chiavaro E, Barbanti D, Nassini R. The effect of different convection cooking methods on the instrumental quality and yield of pork Longissimus dorsi. Meat Sci. 69: 749-756 (2005) https://doi.org/10.1016/j.meatsci.2004.11.005
  15. Zhuang H, Savage EM. Validation of a combi oven cooking method for preparation of chicken breast meat for quality assessment. J. Food Sci. 73: 424-430 (2008) https://doi.org/10.1111/j.1750-3841.2008.00931.x
  16. Holdsworth SD. Optimization of thermal processing - A review. J. Food Eng. 4: 89-116 (1985) https://doi.org/10.1016/0260-8774(85)90014-7
  17. Chiavaro E, Barbanti D, Vittadini E, Massini R. The effect of different cooking methods on the instrumental quality of potatoes (cv. Agata). J. Food Eng. 77: 169-178 (2006) https://doi.org/10.1016/j.jfoodeng.2005.06.060
  18. Augustin J, Johnson SR, Teitzel C, True RH, Hogan JM, Toma RB, Shaw R, Deutsch R. Changes in the nutrient composition of potatoes during home preparation: II. Vitamins. Am. Potato. J. 55: 653-662 (1978) https://doi.org/10.1007/BF02852138
  19. Selman JD, Rolfe EJ. Effects of water blanching on pea seeds. II. Changes in Vitamin C contents. Int. J. Food Sci. Technol. 17: 219-234 (1982)
  20. Roy MK, Juneja LR, Isobe S, Tsushida T. Steam processed broccoli (Brassica oleracea) has higher antioxidant activity in chemical and cellular assay systems. Food Chem. 114: 263-269 (2009) https://doi.org/10.1016/j.foodchem.2008.09.050
  21. Satry SK, Baird CD, Buffington DE. Transpiration rates of certain fruits and vegetable. ASHRAE Trans 84: 237-255 (1978)