LYSINE-LACTOSE BROWNING PRODUCTS

  • FUJIWARA-ARASAKI Teruko
    Kobe-Yamate Women's College, Kobe, Japan and Arthur D. Little Research Institute, Inveresk, Midlothian, Scotland, U. K.
  • COULSON C. B.
    National College of Food Technology, University of Reading, Weybrige, Surrey, U. K.

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  • Lysine-lactose browning products-1-Properties of the reaction products
  • I. PROPERTIES OF THE REACTION PRODUCTS

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Fairly typical Maillard-type reaction products were obtained from the lysine-lactose browning system. These substances gave positive ninhy-drin (17), orcinol (16) and LOWRY (19) reactions and fraction D1, P1 and P3 showed fairly higher sugar content. Fractions D, and P1 contain 22.4 and 21.8% of sugar, respectively. Fractions D1 and P1 yielded 6.95 and 9.44% of free lysine, respectively, i. e. this corresponded to 25 and 24% of their original total nitrogen levels. A preliminary in vitro test of the fractions (P1 and P3) using M. tuberculosis H37Pv suggests some growth stimulation properties.

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