Studies on Chlorophylls Contained in Vegetable Oils. I.

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  • 植物油脂中のクロロフィルの研究(第1報)
  • ショクブツ ユシチュウ ノ クロロフィル ノ ケンキュウ 1 ナタネ ダッサン
  • Chlorophyll Composition of Alkali-refined Rapeseed Oil and Behavior of Chlorophyll during Bleaching
  • なたね脱酸油中のクロロフィル類とそれらの脱色性

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The composition and content of green pigments in alkali-refined rapeseed oil before and after bleaching were investigated.<BR>Pheophytins a and b were detected as major pigments, but chlorophylls a and b could hardly be found, when alkali-refined oil was fractionated by alumina column chromatography. The photofluorometric quantification of the same oil indicated essentially the same results.<BR>Bleaching tests of these four authentic pigments with activated clay as an adsorbent indicated the adsorption of each pigment to decrease in the following order: Chl a>Phy a>Chl b>Phy b. However, in experiments using an active carbon, no distinct difference in the adsorbed quantity of each pigments could be observed. The behavior of these pigments during the bleaching of rapeseed oil was analyzed photofluorometrically.

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