Physicochemical and Fatty Acid Profile Analysis of Polyalthia longifolia Seed Oil

Oyedeji, F. O.; Adeleke, B. B.; Akintola, C.B.

doi:10.3923/tasr.2011.614.621

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…GPKON and GPKOG showed a low level of FFA values, 0.33 and 0.34% oleic acid, respectively (Table 1) which are much low than the values for polyalthia longifera seed oil (7.73%) (Oyedeji et al, 2011), monodora myristica gaeth dunat (7.20%) (Ibironke, 2010) and rubber seed oil (7.55%) (Jumat and Bashar, 2009). Hydrolysis causes the triacylglycerol molecule to split at the ester linkage to form free fatty acids, di-and monoacylglycerols, and eventually free glycerol.…”

Section: Free Fatty Acid and Acid Valuementioning

confidence: 91%

Physicochemical and antioxidant characteristics of gingerbread plum (<em>Neocarya macrophylla</em>) kernel oils

Diaby¹,

Amza²,

Onivogui³

et al. 2016

Grasas y Aceites

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SUMMARY:This study examined the physicochemical characteristics and antioxidant activities of oils extracted from gingerbread plum kernels grown in two different areas (Niger and Guinea). The oil contents were found to be significantly different (P≤0.05); 56% and 60% for gingerbread plum kernels originated from Niger (GPKN) and guinea (GPKG), respectively. GPKG showed the highest levels for physical parameters such as iodine, saponification, free fatty acid, acid and peroxide values when compared with GPKN. The major monounsaturated fatty acid in both GPKN and GPKG was oleic acid (42.46 and 41.43%, respectively) while the polyunsaturated fatty acids consisted of linoleic and arachidonic acid. Arachidonic acid was at higher levels (17.67 and 21.72% in GPKN and GPKG, respectively) than those in common vegetable oils. Results from antioxidant activity essays showed that GPKG is more active than GPKN in DPPH radical scavenging, β-carotene and phenolic contents while GPKN showed the highest values for reducing power and flavonoid. Of the 11 sterol compounds found in this study, 24-hydroxy-24-methyl cholesterol, clerosterol and sitosterol accounted for 68.5% and 66.33% in GPKN and GPKG, respectively. Finally, all tocopherol vitamers (except γ-tocopherol) were present in GPKN and GPKG with α-tocopherol being the main element in both samples. KEYWORDS: Antioxidant activity; Fatty acid profile; Gingerbread plum kernel; Oil indices; Sterols; Tocopherols RESUMEN:Características físico-químicas y antioxidantes del aceite de semillas de Neocarya macrophylla. En este estudio se examinaron las características físico-químicas y actividad antioxidante de los aceites de semilla de Neocarya macrophylla procedentes de dos regiones distintas, Níger y Guinea. Los contenidos grasos de las dos semillas resultaron ser significativamente (P≤0.05) diferentes: 56% para las semillas procedentes de Níger (GPKN) y 60% para las de Guinea (GPKG). El aceite de semillas de Guinea mostraba valores de parámetros químicos tales como índices de iodo, saponificación, peróxidos, y acidez, más elevados que el aceite de semillas de Níger. El ácido oleico resultó ser el ácido graso mono-insaturado más abundante en ambos casos (42.26% para el aceite de Níger y 41.42% para el de Guinea), mientras que los ácidos grasos poli-insaturados predominantes resultaron ser los ácidos linoleico y araquidódico. Los niveles de ácido araquidónico (17.68% para GPKN y 21.72% para GPKG) resultaron más elevados que los encontrados en otros aceites vegetales comunes. El aceite de GPKG demostró mayor capacidad de eliminación de radicales (ensayo de la difenil picrilhidrazina), así como mayores contenidos de β-caroteno y fenoles, mientras que el de GPKN mostró mayor poder reductor y contenido de flavonoides. De los 11 esteroles detectados, 24-hidroxi-24-metil colesterol, colesterol y sitosterol representaban el 68.5% y el 66.33% para los aceites de GPKN y GPKG respectivamente. Por último, todos los tocoferoles (excepto γ-tocoferol) estaban presentes en los dos aceites, siendo α...

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Section: Free Fatty Acid and Acid Valuementioning

confidence: 91%

Physicochemical and antioxidant characteristics of gingerbread plum (<em>Neocarya macrophylla</em>) kernel oils

Diaby¹,

Amza²,

Onivogui³

et al. 2016

Grasas y Aceites

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“…18,19 This fatty acid has been reported as an anti-nutritional factor, 20 as it inhibits the action of digestive enzymes in the digestive tracts of humans and other living organisms. These results therefore show the potential toxicity of the extracts prepared from seeds of D. odorata in traditional medicine.…”

Section: Fatty Acid Compositionmentioning

confidence: 99%

Chemical characterization by GC-MS and phytotoxic potential of non-polar and polar fractions of seeds of Dioteryx odorata (Aubl.) Willd. from Venezuelan regions

Oliveros‐Bastidas¹,

Demuner²,

Barbosa³

2013

Quím. Nova

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Recebido em 22/5/12; aceito em 24/10/12; publicado na web em 12/3/13Dipteryx odorata (Aubl.) Willd. is a tall arboreal species native to Central and Northern South America. This paper describes the chemical characterization and phytotoxic potential of polar and non-polar extracts from D. odorata seeds. Structural determinations were accomplished by chemical derivatization and analyzed by GC/MS. The chemical composition of the non-polar fraction (hexane and dichloromethane) presented fatty acids as major constituent. Medium polar and polar fractions (ethyl acetate and ethanol: water) contained carboxylic acid and high 6,7-Dyhidroxycoumarin-β-D-glucopyranoside content, not previously reported for seeds of D. odorata. Extracts showed a significant level of phytotoxic activity, correlated to the content of coumarin derivatives, predominantly in the polar fraction.

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“…The leaf oil has been verified to exclusively contain sesquiterpene derivatives. Meanwhile, the leaf is used in Nigeria and some other countries for treatment of skin diseases, fever, diabetes and hypertension [19,20,25,26]. The antimicrobial activity of clerodane diterpenoids from P. longifolia seeds had been recorded [27].…”

Section: Introductionmentioning

confidence: 99%

Bioactive chemical constituents, acute toxicity and 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity of Polyalthia longifolia root

Unuigbe

Unula

Aiwonegbe

et al. 2021

GSC Biol. and Pharm. Sci.

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Polyalthia longifolia (masquerade tree) is a plant which is believed to possess varied pharmacological and therapeutic values among different populations. The present report investigated the phytochemical composition, proximate, acute toxicity and antioxidant potential of P. longfolia root. All analyses were carried out using established methods; the antioxidant activity of the crude methanol extract and its fractions (n-hexane and ethyl acetate) were examined using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay while the total phenolic and flavonoid contents were assessed using the Folin-Ciocalteu and the aluminum chloride calibration methods respectively. The phytochemical analysis revealed the presence of alkaloids, carbohydrate, reducing sugars, tannins, saponins, flavonoids, phenolic compounds and protein in aqueous extract. The proximate analysis showed moisture content, total ash, alcohol extractive value, water extractive value, acid insoluble ash and water soluble ash at 8.80, 9.35, 3.28, 3.29, 2.27 and 7.29% respectively. The ethyl acetate fraction showed the highest antioxidant property compared to the n-hexane fraction and crude methanol extract in all assays conducted. Also, the methanol fraction was found to have the highest flavonoids and phenolic content among the extract and fractions. Oral administration of crude methanol extract of P. longifolia to Swiss mice was relatively non-toxic at a maximum dose of 5000 mg/kg. The root extract and fractions of P. longifolia indicated moderately high level of some phytochemicals with outstanding radical scavenging activity, and therefore substantiate its use as a conventional and comparatively non-toxic plant antioxidant.

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Physicochemical and Fatty Acid Profile Analysis of Polyalthia longifolia Seed Oil

Cited by 5 publications

References 7 publications

Physicochemical and antioxidant characteristics of gingerbread plum (<em>Neocarya macrophylla</em>) kernel oils

Physicochemical and antioxidant characteristics of gingerbread plum (<em>Neocarya macrophylla</em>) kernel oils

Chemical characterization by GC-MS and phytotoxic potential of non-polar and polar fractions of seeds of Dioteryx odorata (Aubl.) Willd. from Venezuelan regions

Bioactive chemical constituents, acute toxicity and 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity of Polyalthia longifolia root

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