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Feasibility Study of Wrapper Type Cold Store for Fruit and Vegetable

Research Project

Project/Area Number 10356008
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 農業機械学
Research InstitutionKagoshima University

Principal Investigator

TANAKA Shun-ichiro  Kagoshima University, Faculty of Agriculture, Professor, 農学部, 教授 (80041664)

Co-Investigator(Kenkyū-buntansha) SENSHU Takao  Hitachi Air Conditioning Systems Co., Ltd., Section for Promoting Environmental Technology, General Manager, 環境技術推進部長
TANAKA Fumihiko  Kagoshima University, Faculty of Agriculture, Research Associate, 農学部, 助手 (30284912)
HASHINAGA Fumio  Kagoshima University, Faculty of Agriculture, Professor, 農学部, 教授 (70038222)
YAMAMOTO Yasuo  Wetmaster Co., Ltd, Chief-Scientist, 社長兼研究室長
新井 亨  株式会社日立空調システム, 嘱託
Project Period (FY) 1998 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥21,320,000 (Direct Cost: ¥20,900,000、Indirect Cost: ¥420,000)
Fiscal Year 2001: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2000: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1999: ¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1998: ¥10,200,000 (Direct Cost: ¥10,200,000)
KeywordsWrapper Type Cold Store / high humidity storage / ventilation / kale / sweet potato / tropical fruit and vegetable / middle / long term storage / neural network control / 低温高湿度 / 青果物 / 温水加熱処理 / 低温貯蔵 / 鮮度保持 / 低温度湿度 / 長・中期貯蔵 / 熱物質移動 / シミュレーション
Research Abstract

This study dwelt on possibility of keeping freshness of agricultural products longer than earlier methods by putting into practical use a Wrapper Type Cold Store (WTCS) System. Results obtained were as follows :
1) A practical 33 m^2 WTCS was designed and constructed, the system has 4 rooms fitted with wrapper rooms. Dynamics of temperature and humidity in wrapper room are superior to conventional storage, the former is ± 1.5 ℃ and ± 5 % RH, the system attained a high precision of temperature and humidity changes.
2) Bitter lemon treated in 30 ℃ hot water for 30 min. and stored in WTCS at 5 ℃ and 90〜95 % RH could reach a shelf life of 21 days compared with 14 days for conventional storage method.
3) Kale under ambient conditions has a shelf life of 2 days, under conventional storage at 1 ℃ has a shelf life of 38 days, but under WTCS at 1 ℃ and 95 % RH could reach a shelf life of 48 days.
4) Sweet potato, heat treated at 50 ℃ for 30 min. and then stored at 14 ℃ ± 0.3 and 85〜90 % RH with 4 min. of air exchange in 24 hours could control sprouting and fungal deceases at one time for 8 months and the next time for 12 months.
5) Mango, banana and neri when dried followed falling rate drying equation, decrease of fruit's surface area during drying was monitored by imaging technique, from the image process technique a possibility of predicting drying constant was envisaged.
6) WTCS hybrid cooler exit quasi-steady and unsteady temperature and humidity could be simulated by artificial neural network at very high precision.

Report

(5 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • 1998 Annual Research Report

Research Products

(7 results)

All Other

All Publications (7 results)

  • [Publications] 田中 史彦: "二元調湿換気式低温貯蔵庫における温湿度予測に関する基礎的研究(II)-非定常から準定常運転時-"農業施設. 29巻4号. 177-189 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tanaka, S: "Modeling of Sweetpotato Hot Water Treatment for Sprout Control"Journal of JSAM. 63(5). 62-67 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Urasa, R.L.: "Simulation of Quasi Steady and Unsteady Cooler Exit Temperature and Humidity in a Wrapper Type Cold Store by Artificial Neural Network"Journal of JSAM. 64(1). 83-90 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tanaka, S: "Modeling of Sweetpotato Hot Water Treatment for Sprout Control"Journal of JSAM. 63(5). 62-67 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Urasa, R.L.: "Simulation of Quasi Steady and Unsteady Cooler Exit Temperature and Humidity in a Wrapper Type Cold Store by Artificial Neural Network"Journal of JSAM. 64(1). 83-90 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 田中俊一郎 他2名: "二元調湿換気式低温貯蔵庫における温湿度予測に関する基礎的研究(II)-非定常から準定常運転時-"農業施設. 29巻4号. 177-189 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 田中俊一郎 他2名: "二元調湿換気式低温貯蔵庫における温湿度予測に関する基礎的研究(II)ー非定常から準定常運転時ー" 農業施設. 29巻4号. 177-189 (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1998-03-31   Modified: 2016-04-21  

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