The effect of cyanogenic glucosides of seed of Stizolobium deeringianum from Tabasco, Mexico

摘要

Antinutritional factors (ANFs) in velvet bean seed (Stizolobium deeringianum) were studied. Chemical analysis of the seeds showed that the total phenol content was 3.45 % (by spectrophotometer), condensable tannins were about 0.03 % (by Skin's power method) and cyanogenic glucosides (CG) were 0.42 mg of HCN/100 g dry mater (DM). A study with Wistar rats from the same litter and of about the same weight was also conducted. Each rat was given a dose of 4.2 and 5.4 ml of glucosides (obtained as HCN) mixed in water. The feeding experiment lasted for 10 and 21 d. Each day the rats were weighed and food consumption was recorded. At the end of the experiment, rat liver damage was analysed. Results of the chemical analysis and the rat study showed that thepresence of ANFs in velvet bean seed, do not present a problem for human and animal consumption, provided beans are processed before consumption. In conclusion this wild legume species, can be proposed as an alternative non-traditional food source.