Isoricinoleic acid inAnnona squamosa seed oil

Abstract

Annona squamosa seed was found to contain 23% oil, of which 9.8% was a hydroxy acid. After isolation from the other acids using silica gel column chromatography, it was identified as isoricinoleic acid. The fatty acid composition and analytical data on the oil are given.

Annona squamosa and Catunaregam nilotica Seeds, the Effect of the Extraction Method on the Oil Composition

“…There is no research data, as far as we know, available in the oil content of C. nilotica seed. The oil content of A. squamosa kernels in this study was higher than that reported by Ansari et al [8] who reported 23% oil content, but it was in the range of 14-49% which was reported by Morton in 1987 [7]. The oil content of C. nilotica kernels was higher than most Sudanese conventional oilseeds (cottonseed, sunflower and groundnut), while that of A. squamosa was lower than that of cottonseed, sunflower, sesame and groundnut [25].…”

“…Differences in the fatty acid composition of the seed oil may exist even within the same variety. For example, Ansari et al [8] and Ahmad et al [27] reported that the dominant fatty acids in the seed oil of A. squamosa Linn. were oleic (37.0%), palmitic (25.1%) and linoleic (10.9%).…”

“…The bark, leaves and seeds contain the alkaloid anonaine [7]. It has been reported that A. squamosa seeds contain 23% oil of which 9.8% is a hydroxyl acid, the oil contains 38.6% saturated fatty acids and 61.4% unsaturated fatty acids (29.0% oleic and 32.0% linoleic:), with a saponification value of 191.8, a refractive index of 1.4826 [8], a specific gravity of 0.927, an iodine value of 88.0 and 1.5% of unsaponifiable matter [9]. Studies have revealed that the oil of A. squamosa is somewhat viscid in appearance, pale yellow in color and with a persistent smell.…”

Chemical Characterization of the Fruit of Annona squamosa L. Occurring in the Amazon

“…According to Ansari et al (1985), the seed oil of A. squamosa occurring in India is characterized by a high content of isoricinoleic acid (9.8%). Up to now, the cited publication is the only one that describes the occurrence of isoricinoleic acid in the Annonaceae family.…”

Apocynaceae Seed Lipids: Characterization and Occurrence of Isoricinoleic Acid and Triacylglycerol Estolides

“…Seeds from both samples had similar oil content at 22-23 %. Seed kernels from Annona squamosa (sugar apple) have previously been reported to be a source of IR at close to 10 % of total seed fatty acids [11]. More recent studies have failed to identify IR in this species with oleic (18:1 Δ9 , 40 %) and linoleic (18:2 Δ9,12 , 29 %) as the dominant acyl components and an oil content of 24 % [25].…”