Twenty-seven dry table wines from 14 wineries throughout Victoria were analysed for lead and arsenic. Wines originating from vineyards using lead arsenate insecticide for caterpillar control had mean levels of 0.31 mg litre-' lead and 0.08 mg litre-' arsenic. The mean levels in similar wines from wineries not using lead arsenate sprays were 0.03 mg litre-' and less than 0.01 mg litre-' respectively.

The mineral composition and the distribution of mineral elements between the seed hull and endosperm was examined for 33 samples @om two species of lupin seeds (Lupinus albus and L angustifolius) grown under field conditions in Victoria, Australia. With the exception of calcium and aluminium in both species and boron in L albus, minerals were present at a much higher concentration in the endosperm than in the hull. High concentrations of nitrogen and sulphur in the endosperm of both species reflect the fact that lupin seed protein and sulphur-containing amino acids were stored mainly in the endosperm. All elements studied except sulphur, phosphorus and iron were present at much lower concentrations in lupin protein isolate than in spray dried lupin extract.The mineral composition of lupin protein isolate prepared @om both species can be compared favourably with that of soya bean protein isolate. The results of this study indicate a potential for replacing soya protein isolate with lupin protein isolate.

A comparison of the manganese content of 33 samples of seeds from two species of lupin grown under field conditions in Victoria, Australia, indicated that Lupinus angustifolius had a much lower Mn content (61 mg kg-l) than L. albus (1316 mg kg-'). i n L. albus 80% of the Mn content of the seed was concentrated in the endosperm, while in L. angustifolius only 40% of the Mn was present in the endosperm, demonstrating the ability of this species to exclude Mn from the seed. Whole flour and spray-dried powderproducedfrom L. albus seeds with a Mn content of 4479 mg kg-' contained 4479 mg kg-I and 4337 mg kg-I of Mn, respectively. In contrast, protein isolate prepared from the same seeds contained only 176 mg kg-'. In order to avoid potential Mn toxicity problems from these foodstuffs, L. albus seeds containing high levels of Mn could be used for the production of protein isolate, while L. angustifolius could be used to produce all three products.

No abstract