Fatty acid composition of seed oils of the meliaceae, including one genus rich incis‐vaccenic acid

Kleiman, R.; Payne-Wahl, Kathleen

doi:10.1007/bf02540810

Cited by 26 publications

(16 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fatty acids found were palmitic, stearic, oleic, linoleic and punicic for T. anguina and palmitic, stearic, arachidic, oleic, linoleic and linoleinic for S. mahogani seed oils. These results partially agree with the findings of other [8,10,29]. The differences in our results from them could be explained by variations in soil and climatic conditions.…”

Section: Fatty Acid Compositionsupporting

confidence: 92%

“…Total protein (N×6.25) of S. mahagoni seeds was 13.0% of which 7.5% was water soluble. The protein content in S. mahagoni seeds agrees with the value 13.5% reported by Kleiman and Payne-Wahl [8] for the same seed oil. Findings in the present results revealed that the T. anguina seed is qualified as protein-rich to satisfy the protein needs of the consuming population.…”

Section: Nutritional Compositionsupporting

confidence: 90%

“…The seeds of S. mahagoni are a good agricultural product and have been found potentially rich in fat (64.9%) as reported by Kleiman and Payne-Wahl [8]. Several works have been conducted on the physicochemical properties and anti-microbial activities of T. anguina [2,9,10] and S. mahagoni [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Physicochemical and antimicrobial properties of Trichosanthes anguina and Swietenia mahagoni seeds

Ali¹,

Sayeed²,

Islam³

et al. 2011

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

ABSTRACT ABSTRACT. The core objective of this research was to determine the characteristics of oils, nutritional composition and antimicrobial activities of T. anguina and S. mahagoni seeds. Physicochemical characteristics of oils implied higher degree of unsaturation in T. anguina whereas, S. mahagoni oil contained appreciable level of unsaturation. Tri-acyl-glycerols and neutral lipids were found to be most abounded components recorded to 86.2 and 91.3% for T. anguina and 87.0 and 89.4% for S. mahagoni, respectively. GLC analysis showed the presence of fatty acids from series C16:0 to C18:3 for T. anguina and C16:0 to C20:0 for S. mahagoni in which principal fatty acids accounted as punicic (45.1%) in T. anguina and linoleic (30.1%) in S. mahagoni seed oils. Of the major energy producing nutrients, the seed samples contained large amounts of lipid (36.1% in T. anguina and 57.9% in S. mahagoni) and protein (20.9% in T. anguina and 13.0% in S. mahagoni) and potentially useful amounts of other nutrients. The knowledge from the nutritional analysis could be important to its appropriate industrial use and for improvement in the nutritional value. Assessment of the anti-microbial studies reported herein revealed the crude extracts of T. anguina and S. mahagoni seeds were not significantly inhibition against most of the tested bacteria and fungi. This study may lead to further ethno-pharmacognostic investigations to identify new compounds with therapeutic promise. KEY WORDS KEY WORDS KEY WORDS

show abstract

Section: Fatty Acid Compositionsupporting

confidence: 92%

Section: Nutritional Compositionsupporting

confidence: 90%

See 1 more Smart Citation

Physicochemical and antimicrobial properties of Trichosanthes anguina and Swietenia mahagoni seeds

Ali¹,

Sayeed²,

Islam³

et al. 2011

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

show abstract

“…In analyses it is always added to the amount of oleic acid (Kleiman and Payne-Wahl 1984). Three dierent intraplastidial biochemical pathways have been proposed for its biosynthesis: (i) elongation of palmitoleic acid (16:1 D9) mediated by FASII (con®rmed by Shibahara et al 1989), (ii) isomerization of oleic acid to asclepic acid (con®rmed by Shibahara et al 1990), and (iii) desaturation of stearoyl-ACP mediated by a speci®c D11-desaturase (proposed by Kleiman and Payne-Wahl 1984). The following results from our mutants point to the ®rst proposal as the biosynthetic pathway in sunower seeds.…”

Section: Discussionmentioning

confidence: 99%

Enzymatic characterisation of high-palmitic acid sunflower ( Helianthus annuus L.) mutants

Martı́nez-Force

Álvarez-Ortega

Garcés

1999

Planta

View full text Add to dashboard Cite

Two high-palmitic acid sun¯ower (Helianthus annuus L.) mutants, CAS-5 and CAS-12, have been biochemically characterised. The enzymatic activities found to be responsible for the mutant characteristics are b-keto-acyl-acyl carrier protein synthetase II (KASII; EC 2.3.1.41) and acyl-acyl carrier protein thioesterase (EC 3.1.2.14). Our data suggest that the high-palmitic acid phenotype observed in both mutant lines is due to the combined eect of a lower KASII activity and a higher thioesterase activity with respect to palmitoyl-acyl carrier protein (16:0-ACP). The level of the latter enzyme appeared to be insucient to hydrolyse the produced 16:0-ACP completely. As a consequence of this, three new fatty acids appear: palmitoleic acid (16:1 D9), asclepic acid (18:1 D11), and palmitolinoleic acid (16:2 D9 D12). These fatty acids should be synthesised from palmitoyl-ACP or a derivative by the action of the stearoyl-ACP desaturase, fatty acid synthetase II and oleoyl-phosphatidylcholine desaturase, respectively.Key words: Acyl-acyl carrier protein thioesterase ± Fatty acid synthetase II ± Helianthus (seed) ± b-ketoacyl-acyl carrier protein synthetase II ± Mutant fatty acid ± Palmitic acid Abbreviations: ACP acyl carrier protein; DAF days after owering; FAS fatty acid synthetase; KAS b-keto-acyl-ACP

show abstract

“…These two enzyme preparations were tested under different supercritical conditions in order to select the most suitable enzyme preparation as well as the optimal SFE parameters for the simultaneous extraction and methanolysis of oil from milkweed (Asclepias) seeds. cis-Vaccenate was chosen as the target analyte as it has potential industrial uses, including for engineering plastics (21,22) and as an antifungal agent (23). Furthermore, vaccenic acid is converted in mammals to CLA, which suppresses cancer and atherosclerosis, and enhances the immune system and the development of lean muscle mass (24).…”

mentioning

confidence: 99%

The use of immobilized Candida antarctica lipase for simultaneous supercritical fluid extraction and in‐situ methanolysis of cis‐vaccenic acid in milkweed seeds

Turner

McKeon

2002

J Americ Oil Chem Soc

View full text Add to dashboard Cite

cis-Vaccenate was determined in milkweed (Asclepias) seeds employing supercritical fluid extraction (SFE) with in-situ enzymatic methanolysis. Candida antarctica lipase type B immobilized onto two different types of carrier materials-a hydrophobic polymer (Novozyme 435) and a silica-based material (NovoSample 40013)-was investigated. Several SFE parameters were investigated to find the optimal conditions, including extraction time, temperature, methanol concentration, and water level. It was shown that 90 min of dynamic extraction/reaction time was required, and that the optimal methanol and water concentrations differed for the two enzyme preparations studied. Overall, Novozyme 435 demonstrated the fastest reaction kinetics and consistently gave the highest vaccenate yields. The optimized methodology was applied on 15 species of milkweed seeds, giving an average recovery of 105 ± 7% when compared to results obtained using a conventional methodology. The average relative standard deviations were 8% for the enzyme-based method and 4% for the reference method. The proposed methodology was faster, was less laborious, and consumed less organic solvent than the reference method. Hence, SFE with in-situ enzymatic methanolysis is a promising methodology for the analysis of FA in oilseeds.

show abstract

Fatty acid composition of seed oils of the meliaceae, including one genus rich incis‐vaccenic acid

Cited by 26 publications

References 15 publications

<b>Physicochemical and antimicrobial properties of <i>Trichosanthes anguina</i> and <i>Swietenia mahagoni seeds</i></b>

<b>Physicochemical and antimicrobial properties of <i>Trichosanthes anguina</i> and <i>Swietenia mahagoni seeds</i></b>

Enzymatic characterisation of high-palmitic acid sunflower ( Helianthus annuus L.) mutants

The use of immobilized Candida antarctica lipase for simultaneous supercritical fluid extraction and in‐situ methanolysis of cis‐vaccenic acid in milkweed seeds

Contact Info

Product

Resources

About