Nutritional Requirements of <I>Lactobacillus bulgaricus</I>

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  • Lactobacillus bulgaricusの栄養要求とそれにもとずく培地の改良について
  • Lactobacillus bulgaricus ノ エイヨウ ヨウキュウ ト ソレニ モトズク バイチ ノ カイリョウ ニ ツイテ 3
  • Part III. Modified Standard Methods Agar for enumeration of dairy lactobacilli
  • 第3報プレートカウントアガーの改変

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Abstract

Several cultures of Lb. bulgaricus and Lb. acidophilus which did not grow satisfactorily on Standard Methods Agar for dairy products grew well when the medium was supplemented with “tween 80” 1g/l, L-cysteine 0.1g/l, and lactose 1g/l.<BR>Colony counts obtained on the supplemented agar plates agreed well with the direct microscopic clamp counts.<BR>Plate 1 and 2 in the photograph show the colonies of Lb. bulgaricus B-1 developed on Standard Methods Agar and the supplemented agar respectively.

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