FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (8): 297-299.

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The Contents of Nitrate and Nitrite of Gynura divaricata ( L.) DC

 ZENG  Xian-Feng, HONG  Chun-Miao, QIU  He-Yuan   

  1. Department of Biology, Hanshan Teachers College Chaozhou
  • Online:2005-08-15 Published:2011-09-19

Abstract: The contents of nitrate and nitrite in the edible part of Gynura divaricata ( L.) DC.,which was collected from different soil(seasideland 、mountainland、 woodland、 furrowland、off-lying sea land)and different growing stages(vegetative phase、 flowering bud period、flowering period)were determined. The result indicated that it had good quality because of the contents of nitrate and nitriet of different soil and growing stages were quite lower than the standard.

Key words: Gynura divaricata ( L.) DC, wild vegetable, nitrate, nitrite, different habitant, different growing stages