The seed oils of some species of the family Cruciferae
SummaryThe physicochemical properties of the oils of the seeds of seven plants of the family Cruciferae —Cakile maritima, Sisymbrium altissimum, Sisymbrium Loeselii, Descurainia Sophia, Erysimum cheiranthoides, Brassica amoracioides andCrambe pontica — have been studied and their fatty acid compositions have been determined. The results obtained showed no marked differences from those given in the literature.
Seed oils of Sisymbrium irio and Sisymbrium sophia as a potential non-edible feedstock for biodiesel production
ABSTRACT Biodiesel production from non-edible oil feedstocks could partially alleviate the debate over the food vs. fuel crisis. In this work, seed oils of Sisymbrium irio L. and Sisymbrium sophia L. syn. Descurainia sophia L. Webb ex. Prantl were investigated as potential industrial non-edible biodiesel feedstock. The results revealed that the seeds had high oil contents, of 36.98% (S. irio) and 33.99% (S. sophia). The relatively high erucic acid content in the seed oils (i.e. 11.23 and 10.29%, respectively) showed that these oils could not be applied as edible oils. On the other hand, the low free fatty acid contents (0.44 and 0.34%) showed that seed oil of these species could be a suitable source for biodiesel production even in non-refined form. Linolenic acid was the dominant acid, making up 49.2 and 51.8% of the fatty acid profiles of S. irio and S. sophia, respectively. Such high linolenic acid content in both seed oils resulted in favorable physicochemical properties of the perspective biodiesels, i.e. higher degree of unsaturation, improved cold flow characteristics, and better viscosity. Overall, the seeds could serve as a non-controversial biodiesel feedstock, resulting in enhanced fuel properties while not posing any threats to food security.
The application of adsorptive stripping voltammetry for a study of the reaction of human serum albumin with anti-human serum albumin
Abstract Adsorptive stripping voltammetry has been used to study the interaction of human serum albumin with anti-human serum albumin. The adsorptive stripping voltammetric behaviour of both proteins has been optimised with respect to accumulation potential, accumulation time and scan rate. It has been demonstrated that adsorptive stripping voltammetry can be a useful technique for the study of the interaction of these two proteins directly in solution.