Abstract
Accessions ofVernonia anthelmintica (L.) Willd. seed from India and Pakistan varied somewhat in the amt of oil that they contained, but the oils did not vary significantly in their epoxy content. Storage of the whole seed for periods up to three years did not affect the quality of the oil, but the activity of the seed enzyme system seemed to increase with time. The data also show a rapid development of free fatty acid once the seed is ground. The epoxy content of low FFAVernonia oil and trivernolin changed only slightly when these products were stored at room temp for six months. However, the viscosity of the samples that were exposed to light increased greatly indicating changes in the physical nature of the products. Similar behavior was exhibited by both products when they were stored under nitrogen at 100C and by trivernolin at 4C.
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References
Scott, W. E., C. F. Krewson, F. E. Luddy and R. W. Riemenschneider, JAOCS40, 587–589 (1963).
Scott, W. E., C. F. Krewson and R. W. Riemenschneider, Chem. Ind. 1962, 2038–2039.
Riser, G. R., J. J. Hunter, J. S. Ard and L. P. Witnauer, JAOCS39, 266–268 (1962).
Krewson, C. F., J. S. Ard and R. W. Riemenschneider,Ibid. 39, 334–340 (1962).
Krewson, C. F., and W. E. Scott,Ibid. 41, 422–426 (1964).
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A laboratory of E. Utiliz. Res. & Dev. Div., ARS, USDA.
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Scott, W.E., Krewson, C.F. Vernonia anthelmintica (L.) willd. The effect of storage on the epoxy content of the seed oil and trivernolin. J Am Oil Chem Soc 42, 147–149 (1965). https://doi.org/10.1007/BF02545053
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DOI: https://doi.org/10.1007/BF02545053