Quality, content and properties of colostrum are crucial for the neonate and its further development. Due to essential differences between intrauterine and extrauterine environment, the neonate is exposed to oxidative stress conditions. Colostrum apart from nutrient and immunological components should contain antioxidative systems necessary for the protection against reactive oxygen species. This review describes available data on enzymatic and non-enzymatic antioxidants in colostrum. Due to the fact that the literature concerning bovine colostrum is scanty, the information based on bovine mature milk determinations as well as other species is provided. Bovine colostrum is used not only by calves, but also for the production of hyperimmunized colostrum, medicines or feed supplements. Quality of colostrum influences quality of mature milk. This is another reason, except from health of neonate, why antioxidative properties of bovine colostrum are of special importance and require further detailed elucidation.

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SummaryElectrophoretic analysis of seed globulins was performed to investigate relationships between the Old-World Lupinus species. The analysis covered 11 species described earlier and the recently reported taxon, Lupinus anatolicus nom. nud. With only two exceptions, particular species were represented by various accessions. In total, 1 l0 accessions were examined. SDS-PAGE of reduced globulins was carried out in a discontinuous buffer system.The results showed a marked difference between the smooth-seeded and the rough-seeded species. In the group of smooth-seeded lupins pronounced interspecific differences were recorded. The rough-seeded species formed a rather homogenous group, well distinguishable from the smooth-seeded species. Though no distinct interspecific differences were recorded in the rough-seeded group, most of the 34 investigated L. atlanticus accessions could be distinguished due to a characteristic, prominent polypeptide band with approx. Mr 27 kDa. The recently reported smooth-seeded taxon, L. anatolicus, showed a species-specific SDS-PAGE globulin pattern.

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