
TY  - JOUR
A1  - Radler, F 
A1  - Horn, DHS 
T1  - The composition of grape cuticle wax
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1965
VL  - 18
IS  - 7
SP  - 1059
EP  - 1069
KW  - 
UR  - https://doi.org/10.1071/CH9651059 
N2  - The cuticle wax of the grape is composed of a soft wax (30%) readily removed by light petroleum and a hard wax (30%), mainly oleanolic acid, removed by chloroform. The soft wax of the fresh grape is composed chiefly of long-chain alcohols together with smaller amounts of aldehydes, esters, fatty acids, hydrocarbons, oleanolic acid, and small amounts of high molecular weight substances. The soft wax of dried grapes is similar in composition but contains no aldehydes and larger amounts of high molecular weight substances and oxidation products. The aldehydes, unusual wax components, are straight chain and range from C16 to C32 with the even chain-lengths predominating. They were destroyed by neutral alumina but can be chromatographed on silicic acid. 
ER  -

