Pyrrolizidine alkaloid content in crude and processed borage oil from different processing stages |
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Authors: | Inger?Wretensj? Email author" target="_blank">Bo?KarlbergEmail author |
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Affiliation: | (1) Department of Analytical Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden |
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Abstract: | The pyrrolizidine alkaloid content of crude borage oil and borage oil from different processing stages was determined by GC-MS.
The results showed that no pyrrolizidine alkaloids were present above a detection limit of 20 ppb. The reduction factors for
pyrrolizidine alkaloids at various stages in the oil refining process were determined by means of spiking experiments using
the commercially available pyrrolizidine alkaloid crotaline. It was shown that the pyrrolizidine content in crude borage oil
was reduced overall by a factor of about 30,000 in the refining process. |
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Keywords: | Borage oil pyrrolizidine alkaloids GC-MS |
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