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| Characterization of sacha inchi (Plukenetia volubilis L.) oil by FTIR spectroscopy and H-1 NMR. Comparison with linseed oil | |
| Guillen, M. D. | |
| 2003 | |
| Source Publication | Journal of the American Oil Chemists Society
 |
| ISSN | 0003-021X |
| Volume | 80Issue:8Pages:755-762 |
| Abstract | Three oil samples obtained from sacha inchi (Plukenetia volubilis L.) seeds were studied by means of FTIR and H-1 NMR. Frequency data of the most significant bands of the IR spectrum of this oil are given. These data show that sacha inchi oil has a high degree of unsaturation. The same fact is deduced from the ratio between the absorbance of the bands due to the stretching vibrations of the cis olefinic CH double bonds at 3010.5 cm(-1) and to the methylene symmetrical stretching vibrations at 2855.1 cm(-1). The proportions of monounsaturated, polyunsaturated, and saturated acyl groups were predicted from the frequency of some IR bands, and these were in satisfactory agreement with the values obtained through FAME generation and their quantification by GC. Likewise, simple observation of the H-1 NMR spectra provided a great deal of information about sacha inchi oil, with regard not only to the relative proportions of the different acyl groups but also to their nature. Thus the presence of gamma-linolenic acyl groups was discounted. Furher-more, the area of some H-1 NMR signals was used to determine the proportion of saturated and mono-, di-, and triunsaturated acyl groups, which also were in satisfactory agreement with the values obtained by classical methods. IR and H-1 NMR determinations take very little time in comparison with classical methods and do not require chemical manipulation or transformation of the sample. A comparison was also made between the compositions of sacha inchi and linseed oil. Both oils are important sources of the healthful n-3 linolenic acyl groups, and sacha inchi also contains high proportions of the n-6 linoleic acyl groups. |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/8346 |
| Collection | 热带植物资源可持续利用重点实验室特色文献_星油藤相关文献 |
| Recommended Citation GB/T 7714 | Guillen, M. D.. Characterization of sacha inchi (Plukenetia volubilis L.) oil by FTIR spectroscopy and H-1 NMR. Comparison with linseed oil[J]. Journal of the American Oil Chemists Society,2003,80(8):755-762. |
| APA | Guillen, M. D..(2003).Characterization of sacha inchi (Plukenetia volubilis L.) oil by FTIR spectroscopy and H-1 NMR. Comparison with linseed oil.Journal of the American Oil Chemists Society,80(8),755-762. |
| MLA | Guillen, M. D.."Characterization of sacha inchi (Plukenetia volubilis L.) oil by FTIR spectroscopy and H-1 NMR. Comparison with linseed oil".Journal of the American Oil Chemists Society 80.8(2003):755-762. |
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