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Large-Scale Screening of Intact Castor Seeds by Viscosity Using Time-Domain NMR and Chemometrics

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Journal of the American Oil Chemists' Society

Abstract

Castor is one of the most promising non-edible oil crops, due to its high oil content and since it can be grown on marginal lands and in a semi-arid climate. However, the high content of ricinoleic acid results in an extremely high viscosity of castor-based biodiesel. In this study, we report on the development of a rapid and non-destructive method for large-scale screening of intact castor seeds according to their viscosity by time domain NMR and chemometrics. A qualitative principal component analysis model was constructed, where each observation was assigned to a different viscosity group. This model straightforwardly detects desirable outliers, and can also be applied for detection of other transgenic oilseeds, especially those containing small levels of hydroxylated fatty acid.

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Acknowledgments

This work was partially supported by Evogene Ltd. The authors would like to thank Ormat Industries for the donation of the LR-NMR System. Special thanks are extended to Mrs. Edna Oxman for her scientific editing work.

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Correspondence to Zeev Wiesman.

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Berman, P., Nizri, S., Parmet, Y. et al. Large-Scale Screening of Intact Castor Seeds by Viscosity Using Time-Domain NMR and Chemometrics. J Am Oil Chem Soc 87, 1247–1254 (2010). https://doi.org/10.1007/s11746-010-1612-z

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  • DOI: https://doi.org/10.1007/s11746-010-1612-z

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