The contents of crude protein and amino acids were determined in Gynura divaricata (L.) DC., G. bicolor DC., Orychophragmus violaceus (L.) Schulz and Portulaca oleracea L. The results show that all these wild vegetabl...The contents of crude protein and amino acids were determined in Gynura divaricata (L.) DC., G. bicolor DC., Orychophragmus violaceus (L.) Schulz and Portulaca oleracea L. The results show that all these wild vegetables contain more than 7 kinds of essential amino acids. The contents of crude protein and essential amino acids in G. bicolor are 25.22% and 9.09% respectively, which are the highest in all determined materials. The ratio of essential amino acids to total amino acids of P. oleracea is in proportion to the pattern of mode. O. violaceu has the greatest amount of delicious amino acids of 5.51%.展开更多
野生蔬菜不仅具有较高的营养价值,还有相当高的医疗价值。近代研究表明,过量的食入硝酸盐,会诱发消化系统癌变,而维生素 C 有防癌作用,因此硝酸盐和维生素 C含量为评价蔬菜品质的重要指标之一。一般栽培的叶菜类蔬菜如白菜、菠菜、苔菜...野生蔬菜不仅具有较高的营养价值,还有相当高的医疗价值。近代研究表明,过量的食入硝酸盐,会诱发消化系统癌变,而维生素 C 有防癌作用,因此硝酸盐和维生素 C含量为评价蔬菜品质的重要指标之一。一般栽培的叶菜类蔬菜如白菜、菠菜、苔菜等硝酸盐含量很高,平均存4000mg/kg 鲜重左右。野生蔬菜中的硝酸盐及维生素 C 含量如何呢?我们仅对几种分布广泛,食用历史较长,营养价值较高的野生蔬菜进行了研究,以期为科学地有选择性地开发野生蔬菜资源提供有价值的依据。展开更多
文摘The contents of crude protein and amino acids were determined in Gynura divaricata (L.) DC., G. bicolor DC., Orychophragmus violaceus (L.) Schulz and Portulaca oleracea L. The results show that all these wild vegetables contain more than 7 kinds of essential amino acids. The contents of crude protein and essential amino acids in G. bicolor are 25.22% and 9.09% respectively, which are the highest in all determined materials. The ratio of essential amino acids to total amino acids of P. oleracea is in proportion to the pattern of mode. O. violaceu has the greatest amount of delicious amino acids of 5.51%.
文摘野生蔬菜不仅具有较高的营养价值,还有相当高的医疗价值。近代研究表明,过量的食入硝酸盐,会诱发消化系统癌变,而维生素 C 有防癌作用,因此硝酸盐和维生素 C含量为评价蔬菜品质的重要指标之一。一般栽培的叶菜类蔬菜如白菜、菠菜、苔菜等硝酸盐含量很高,平均存4000mg/kg 鲜重左右。野生蔬菜中的硝酸盐及维生素 C 含量如何呢?我们仅对几种分布广泛,食用历史较长,营养价值较高的野生蔬菜进行了研究,以期为科学地有选择性地开发野生蔬菜资源提供有价值的依据。
