Journal of Sericultural and Entomological Science (한국잠사곤충학회지)

Korean Society of Sericultural Science (한국잠사학회)
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Studies on the drying characteristics of mulberry fruits with multipurpose agricultural products dryers

다목적 농산물건조기를 이용한 오디 건조특성 구명

  • Received : 2015.09.17
  • Accepted : 2015.10.26
  • Published : 2015.10.31
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Abstract

To extend shelf life of mulberry fruits, usually expensive freeze drying of freezing process is required. In this study an economic to multipurpose agricultural products dryers with mulberry dryer and technique was developed to reduce postharvest processing cost. Fuel and electricity consumption for drying were lowest when drying temperature was $60^{\circ}C$. And various drying conditions (fuel 3 hrs, heat 1 hr, room temperature air velocity 51 hrs) of the developed dryer were analyzed to improve drying performance. Dried mulberry fruits had dark brown color and marketable high quality explain the semi-dried characteristics.

본 연구는 장기 냉동저장 오디에 대해 현재 사용하고 있는 방법이 보관 및 유통비용 등이 커 농가에 부담이 되므로, 이에 고가 건조기를 대체할 수 있는 값이 저렴한 상용화된 다목적농산물건조기를 통한 건조기 개량 및 반건조기술을 개발하였다. 연료와 히터의 건조온도를 $60^{\circ}C$로 설정하고, 상온통풍은 상온보다 온도를 낮추어 건조시험 한 결과 연료 3시간, 히터 1시간, 상온통풍 51시간인 조건에서 다른 조건과 비교해서 연료소모 및 전기사용량 면에서 가장 양호하였고, 품질에 있어서도 다른 조건에 비해 현저히 끈기가 있는 반 건조 특성을 나타내었으며, 완료된 건조시료의 상태도 상품성이 뚜렷한 암갈색을 나타냈다. 경도(압축력)은 건조 전보다 건조 후에, 항온보다는 변온에서 높게 나타났다.

Keywords

References

  1. Abdullah A, Aydin D (2009) Thin layer solar drying and mathematical modeling of mulberry. International Journal of Energy Research 33, 687-695. https://doi.org/10.1002/er.1504
  2. Akpinar EK (2008) Mathematical modeling and experimental investigation on sun and solar drying of white mulberry. Journal of Mechanical Science and Technology 22, 1544-1553. https://doi.org/10.1007/s12206-008-0508-4
  3. Doymaz I (2004a) Drying kinetics of white mulberry. Journal of Food Engineering 61, 341-346. https://doi.org/10.1016/S0260-8774(03)00138-9
  4. Doymaz I (2004b) Pretreatment effect on sun drying of mulberry fruits(Morus alba L.). Journal of Food Engineering 65, 205-209. https://doi.org/10.1016/j.jfoodeng.2004.01.016
  5. Evin D (2011) Microwave drying and moisture diffusivity of white mulberry: experimental and mathematical modeling. Journal of Mechanical Science and Technology 25(10), 2711-2718. https://doi.org/10.1007/s12206-011-0744-x
  6. Hong YP, Lee JH (2012) Drying method of mulberry fruits, patent 10-2102-0037557, 1-5.
  7. Jeong H, Yun HS (2009) Field test of cold chain container, National Academy of Agricultural Science Research Report, Agricultural Engineering Research I, 236-244.
  8. Kim HB, Bang HS, Lee HW, Seuk YS, Sung GB (1999) Chemical characteristics of mulberry syncarp. Korean J Seric Sci 41, 123-128.
  9. Kim HB, Kim SK, Seok YS, Seo SD (2015) A making the method of semi-dried mulberry fruit by vacuum freezing dryer. J Seric Entomol Sci 53(1), 50-54. https://doi.org/10.7852/JSES.2015.53.1.50
  10. Lee HW, Shin DH, Lee WC (1998) Morphological and chemical characteristics of mulberry (Morus) fruits with varieties. Korean J Seric Sci 40, 1-7.
  11. Mahboubeh F, Zahra ED, Ahmad KA, Mahmoud O (2012) Effect of spray drying conditions and feed composition on the physical properties of black mulberry juice powder. Food and Bioproducts processing 90, 667-675. https://doi.org/10.1016/j.fbp.2012.04.006
  12. Mahboubeh F, shima Y, Zahra ED (2013) Investigation on the effects of microwave and conventional heating methods on the phytochemicals of pomegranate (Punica granatum L.) and black mulberry juices. Food Research International 50, 568-573. https://doi.org/10.1016/j.foodres.2011.03.043
  13. Omer FT, Sefa T, Gazanfer E (2007) Effects of chemical pretreatments on air-drying process of black mulberry (Morus nigra L.). Journal of Scientific & Industrial Research 66, 477-482.
  14. Seed and Life Industry Division (2011) Statistical data of sericultural industry. Ministry for Food, Agriculture, Forestry, and Fisheries, Seoul, Korea.
  15. Teng H, Lee WY (2014) Optimization of drying conditions for quality semi-dried mulberry fruit (Morus alba L.) using response surface Methodology. Current Research on Agriculture and Life Science 32(2), 67-73. https://doi.org/10.14518/crals.2014.32.2.011

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