Studies on candelilla wax. I. its n‐acids and n‐alcohols

Abstract

SummaryA method has been described for separating the constituents of candelilla wax into three fractions, viz., paraffins, acids, and alcohols. To the list of acids and alcohols reported by others as constituents of this wax may now be added the C28 individuals. The presence of the C30, C32, and C34 homologues of both compounds has been confirmed. All are of then‐type. Not confirmed however was the alleged presence of a lactone.

Comparison of some commercial waxes by gas liquid chromatography

“…Hydrocarbon content of this wax was reported to be ca. 50-55% with C31 the principal component (13,25,26), and the present sample contained 41% of volatile hydrocarbons (80% C31) (Tables I and II). Holloway (13) found free acids similar to those reported here (Table III).…”

Cutin, Suberin, and Waxes

“…Usually the hy drocarbon fraction of plant waxes consists of a mixture of C 2 i-C 3 7 alkanes with an overwhelming predominance of odd-chain alkanes (Eglinton and Hamilton, 1967;Mazliak, 1968;Martin and Juniper, 1970;Kolattukudy and Walton, 1973;Tulloch, 1976). For example, C 2 9 alkane constitutes >90% of the hydrocar bons in the wax of many plants such as apple (Mazliak, 1968) and Brassica oleracea (Kolattukudy and Walton, 1973), whereas C 3 1 constitutes a simi larly high proportion of the hydrocarbons of wax from many plants such as Pisum sativum (Kolattukudy, 1970e;Macey and Barber, 1970a), Senecio odoris (Kolattukudy, 1968a), and candililla (Schuette and Baldinus, 1949;Spengler and Hauf, 1957). For example, C 2 9 alkane constitutes >90% of the hydrocar bons in the wax of many plants such as apple (Mazliak, 1968) and Brassica oleracea (Kolattukudy and Walton, 1973), whereas C 3 1 constitutes a simi larly high proportion of the hydrocarbons of wax from many plants such as Pisum sativum (Kolattukudy, 1970e;Macey and Barber, 1970a), Senecio odoris (Kolattukudy, 1968a), and candililla (Schuette and Baldinus, 1949;Spengler and Hauf, 1957).…”

1 Final Report on the Safety Assessment of Candelilla Wax, Carnauba Wax, Japan Wax, and Beeswax

“…'2.4. [10][11][12][13][14][15][16][17][18][19][20][21] Spectroscopic identification methods are also used in wax analysis. Ultraviolet absorption detects P-diketones, and infrared absorption can identify a number of functional groups.…”