Organic Analysis of Hevea Latex. IX. Some Details of the Main Fractions

Abstract

Abstract As a result of attempts to isolate and identify various groups of organic compounds which occur naturally in Hevea latex, e.g., proteins, lecithins, amino acids, amines and betaines, alkaloids, and fat acids, resin acids, sterols and wax alcohols, the author developed some years ago a general scheme for the systematic analysis of latex. This paper, in completion, contains further details of the first fractions which are obtained on application of the general scheme, and which therefore have been called main fractions. Since it appeared desirable for several reasons to limit the analytical investigations to latex of one definite Hevea clone, the figures given below apply exclusively to fresh unammoniated latex of clone Tjirandji 1 (Tjir 1) tapped in the Tjiomas experimental garden near Buitenzorg. The recorded percentages are averages of figures obtained from several duplicate estimations.