Changes in chemical constituents during the development of Buna, Japanese beech nuts

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  • ブナ種子の発育にともなう化学成分の変化
  • ブナ シュシ ノ ハツイク ニ トモナウ カガク セイブン ノ ヘンカ

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Abstract

Buna, Japanese beech (Fagus crenata BL.) nuts of the May growth period contained relatively higher concentrations of sugars, nitrogen, phosphorus, and potassium. Total sugar and crude starch tended to decrease during nut maturation, whereas crude fat, protein nitrogen, phosphorus, calcium, and magnesium increased rapidly. Especially notable among the latter was the accumulation of fats.

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