Control of the Nutritional Value of Crops by Culture Condition (Part 1)

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Other Title
  • 作物の肥培管理とその栄養価に関する研究 (第1報)
  • サクモツ ノ ヒバイ カンリ ト ソノ エイヨウカ ニ カンスル ケンキュウ 1 ソ サイ ノ ホウソ エイヨウ ト ビタミン C ガンリョウ
  • Vitamin C content of vegetable crops as affected by their boron nutrition
  • ソ菜のホウ素栄養とビタミンC含量

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Abstract

Radish plants (Raphanus sativus L. var. acanthiformis Makino) were cultivated by solution culture with various concentration of boron in medium to determine the relationship between the amount of L-ascorbic acid and boron contained in leaves. Storage experiments were conducted with the cultivated plants to investigate the effect of storage on L-ascorbic acid content as affected by boron in leaves. Results obtained are as follows: -<BR>1) High correlation was obtained between ascorbic acid content and boron concentration in leaves in the range of 22.7-73.8ppm B in dry weight basis.<BR>2) The higher the concentration of boron in leaves, the lesser the reduction in the content of ascorbic acid during the storage under room temperature in polyethylene bag was observed.<BR>3) Freezing of the tissue in deep freezer decreased the ascorbic acid content as compared with storages in refrigerator (3°C) or under room temperature.<BR>4) Enzymatic- or auto-oxidation of ascorbic acid due to the destruction of the tissue by freezing and thawing process was suggested.

Journal

  • Eiyo To Shokuryo

    Eiyo To Shokuryo 18 (4), 304-308, 1965

    JAPAN SOCIETY OF NUTRITION AND FOOD SCIENCE

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