Ueber den Nachweis von Sesamöl

The Naturally Occurring Lignans

“…The oil of sesame seeds contains a number of materials, including about 1 per cent of (+)-sesamin (39). Saponification of the oil with alcoholic potassium hydroxide followed by dilution with water and extraction with ether removes (+)-sesamin, which is purified by recrystallization (2,24,25,26,153,176,307). [«Id = +60.0°( -)-Sesamin was obtained from the roots of Asarum sieboldi, where it occurs along with (-)-asarinin (178).…”

The Chemical and Physiological Properties of Sesame Oil.

“…Such drastic treatments, however, also affect the intensity of the Villavecchia test. For example, prolonged heating of the oil is known to reduce the color intensity (35,102,208), and treatment of the oil with decolorizing agents has the same effect (35,90,102). Gravenhorst (90) reported that this reduction in the intensity of the color development may not become apparent until after deodoriization, an observation which has been confirmed and explained by others (48,107).…”

“…Villavecchia and Fabris (242, 243), Bómer (35), and Heiduschka (101) believed that the component in sesame oil responsible for the Villavecchia or Baudouin test was a yellow noncrystallizable oily substance. As early as 1903, Kreis (140) obtained evidence that this color reaction was due to a phenolic compound.…”