How to Protect the Falling-off of the Grape-bunches During Distribution Process

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  • ぶどうの脱粒防止に関する試験 (第1報)
  • ブドウ ノ ダツリュウ ボウシ ニ カンスル シケン 1 ホウソウ , レイキャク , ヤクヒン
  • 包装, 冷却, 薬品

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The effect of packaging, cool storage and O. E. D, treatment on the fall of physical properties of grapes, especially the fall of grain, were investigated and the following results were obtained:<br>1) Moisture content of the stem of grapes less than 63 percent results in the falling-off of grain during distribution process (Fig. 2).<br>2) The falling-off of grain of grape-bunches due to the vibration decreases with the treatment of polyethylene packaging and cool storage.<br>The fall increased remarkably after the cool storage followed by warm storage or retail sale condition non-cooled (Table 3).<br>3) Loss of moisture content of bunches is diminished by polyethylen packaging and cool storage (B, C, E in Table 4).<br>Moisture content of bunches diminished remarkably due to the cool storage followed by warm storage (G, H in Table 4).<br>4) Correlation does not exist between the acidity and falling-off of grain.<br>5) Half cooling period of 12 minutes is obtained by air blast cooling of grape bunches.<br>The cooling rate is influenced by many factors such as location in the container, direction of air blasting on the fruit, air velocity, etc.

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