Fatty Acid Profiles of Some Fabaceae Seed Oils

Abstract

The fatty acid profiles of six seed oils of the Fabaceae (Leguminosae) family are reported and discussed. These are the seed oils of Centrosema pubescens, Clitoria ternatea, Crotalaria mucronata, Macroptilium lathyroides, Pachyrhizus erosus, and Senna alata. The most common fatty acid in the fatty acid profiles of these oils is linoleic acid with palmitic, stearic, oleic and linolenic acids usually completing the most prominent fatty acids in these species. Long‐chain saturated fatty acids were observed in all oils. Centrosema pubescens and Macroptilium lathyroides exhibited the greatest amounts of long‐chain saturated fatty acids exceeding the amount of stearic acid in these oils. C. pubescens exhibited slightly more that 6 % C24:0 together with some fatty acids >C25 and M. lathyroides approximately 4 % C22:0 and 3 % C24:0. The results are comparatively discussed to previous data on the fatty acid profiles of Fabaceae species.

Relationship of woody species composition with edaphic characteristics in threatened riparian Atlantic Forest remnants in the upper Rio Doce basin, Brazil

“…Species of this family are also commonly found in greater proportions in phytosociological studies in fragments of the Atlantic Forest (Lima et al 2017, Miranda et al 2019), including Apuleia leiocarpa and Piptadenia gonoacantha , mainly because they are generally emergent species (Lopes et al 2014). The Fabaceae family is considered the third largest family of angiosperms in the world, with about 685 genera and 18 860 described species, distributed in temperate, tropical and subtropical regions, and in Brazil this family has the largest number of plant species (Knothe et al 2016). Fabaceae species have the characteristic of nitrogen fixation capacity, in addition to being responsible for ensuring productivity in most terrestrial ecosystems (Lima et al 2017, Gei et al 2018).…”

Sodium doped zirconia drenched SBA-15 as a reusable solid catalyst for concurrent esterification and transesterification of low-quality oils

“…Chemical shifts were expressed as parts per million (ppm) employing tetramethylsilane (TMS) as an internal standard. The FAMEs yield was quantified by putting the appropriate values in equation (1) as reported in literature [17]. FAMEs yield (%) = {2I(methoxy)/3I(methylene)} × 100 (1) where, I(methoxy) and I(methylene) are the integration values of methoxy (3.6 ppm) and methylene (2.3 ppm) protons, respectively in proton NMR spectrum of fatty acid methyl ester.…”

Fatty Acid Profiles of Garuga floribunda, Ipomoea pes‐caprae, Melanolepis multiglandulosa and Premna odorata Seed Oils

“…Garuga floribunda: Langogan, Puerto Princesa City, Palawan; 10°02′N, 119°07′E; Ipomoea pes-caprae: Torrijos, Marinduque; 13°19′N, 122°05′E; Melanolepis multiglandulosa: Biñan, Laguna, Luzon; 14°15′45″N, 121°2′34″E; Premna odorata: Biñan, Laguna, Luzon; 14°15′45″N, 121°2′34″E. As in previous work, mature seeds were collected from different individuals in the population by opportunistic sampling as plants exhibit different flowering and fruiting seasons [28]. Taxonomic manuals and vouchers deposited at the Philippine National Herbarium, National Museum of the Philippines were used to identify seed samples.…”

“…The fatty acid profiles of all four samples were analyzed as fatty acid methyl esters by a combination of gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) as described previously [28]. Picolinyl (nicotinyl; 3-pyridylcarbinyl) esters were prepared by a procedure given in the literature [29] and served as verification for double bond positions in the unsaturated fatty acid chains as also carried out previously [28]. Nuclear magnetic resonance (NMR) spectra (solvent: CDCl 3 ) were acquired using a Bruker (Billerica, MA, USA) Avance 500 spectrometer at 500 MHz ( 1 H-NMR) or 125 MHz ( 13 C-NMR).…”