Free methionine levels in rin and normal tomato fruits were determined microbiologically. Similar levels (1750 mug/100 g fresh weight) for mature green fruits of both rin and a normal isogenic line suggest that the lack of ripening of rin fruits is not due to low methionine levels. Methionine levels of mature green rin and normal fruits were 1750 mug/ 100 g fresh weight. Normal fruits ripened e...

The antioxidant activity and total phenolic content of some spices (M. piperita L., R. coriaria L., T. spicata, S. officinalis, R. officinalis L., C. ovata L., O. vulgare L., L. nobilis L. and C. annum L.) were determined. The higher TEAC values (mmol TE/g extract) were obtained for sage (1.783) and rosemary (1.241). The IC value (mg/ml) ranged between 0.103-4.082 for mint and capers, respectiv...

Poison oak, ivy, and sumac dermatitis is a T-cell-mediated reaction against urushiol, the oil found in the leaf of the plants. This hapten is extremely lipophilic and concentrates in cell membranes. A blastogenesis assay employing peripheral blood lymphocytes obtained from humans sensitized to urushiol is described. The reactivity appears 1--3 wk after exposure and persists from 6 wk to 2 mon. ...

We tested whether compounds in ripe Solanum americanum fruits affect gut retention time of S. americanum seeds in Cedar Waxwings (Bombycilla cedrorum). Glycoalkaloids were of special interest because they commonly occur in ripe Solanum fruits and are associated with diarrhea in humans. Also, we determined the influence of gut retention time and the presence/absence of two glycoalkaloids, a-sola...