Thiaminase activities and thiamine content of Pteridium aquilinum, Equisetum ramosissimum, Malva parviflora, Pennisetum clandestinum and Medicago sativa.
نویسنده
چکیده
Thiaminase type 1 and 2 activities and thiamine content of five plants were determined. Of these Pteridium aquilinum and Equisetum ramosissimum were found to have considerably more thiaminase activity and lower thiamine content than Malva parviflora, Pennisetum clandestinum and Medicago sativa.
منابع مشابه
Bracken (Pteridium aquilinum); the effect of steaming on the nutritive value of bracken hay.
The bracken fern (Pteridium aquilinum) has been known for a long time to be poisonous to cattle (Penberthy, 1893) and horses (Muller, 1897) under farm conditions. Field cases of bracken poisoning in sheep are almost unknown; the more selective feeding habits of sheep may be responsible for their apparent immunity. Bracken poisoning has been experimentally produced in cattle (Almond, I 894), hor...
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That Pteris aquilina, a spccies of fern, destroys thiamine, or possesses "anti thiamine activity" or "antianeurine factor" has been reported by Weswig (1), Thomas (2) and Evans (3). Similar factors, though somewhat weaker in activity, have also been found in Aspidium filix mas, Dryapteris austriaca and Nephrolepsis exaltata by Somogyi (4, 5, 6) and in Equisetum arvense by Evans et al. (7). Acco...
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and the concentration and type of acceptor amine has been studied. 4. The manometric method has been used to demonstrate that heteropyrithiamine, quinilinothiamine and possibly oxythiamine are thiaminase substrates. 5. The effect of several structural analogues of thiamine on bracken thiaminase has been studied and it is shown that 3-(o-aminobenzyl)-4-methylthiazolium chloride is a powerful but...
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Present study reports the antioxidant activities of methanolic extracts of Actiniopteris radiata and Equisetum ramosissimum. The analyses carried out were DPPH radical scavenging, ABTS·+, reducing power, and ferrous ion chelating tests. From the analyses, Actiniopteris radiata and Equisetum ramosissimum, were found to have potent antioxidant activity against DPPH with the IC50 value of 93.48 an...
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ورودعنوان ژورنال:
- The Onderstepoort journal of veterinary research
دوره 56 2 شماره
صفحات -
تاریخ انتشار 1989