1. Conclusion: Portulaca extracts can improve the immunitive function.

2. The functional character and exploitation of Portulaca oleracea L.

3. Objective: To identify anti-hypoxia ingredients extracted from Portulaca oleracea and to find out the possible mechanism of its anti-hypoxia actions.

4. CONCLUSION: Ethanol extract from Portulaca oleracea L. can obviously increase the ability of hypoxia tolerance of mice.

5. Portulaca oleracea is a kind of wild vegetable having various nutritions and health functions.

6. MethodsThe polysaccharides of Portulaca oleracea were obtained through hot water extraction and ethanol precipitation, which content was determined by phenol-vitriolic colorimetry.

7. Results:Portulaca extracts improved the devouring percentage and index of macrophage cell and promoted the formation of hemolysin and hemolysis void the transformation of lymphocyte.

8. Results The Portulaca oleracea L. contained many kinds of chemical constituents, primarily including organic acids, flavonoids, terpenoids, coumarins, alkaloids.

9. Conclusion The stems and the roots of Portulaca oleracea L have a strong effect of anti-oxygen free radical in vitro and in vivo, while its leaves has the effect only in vitro.

10. Portulaca contains rich omega, another of portulaca oleracea l could stop cancer from the generation of antioxidant supplements are other fruits and vegetables 10 times.

11. The amount of portulaca flavonoids is the highest in root and higher in stems, but not found in leaves, which offers some data for the application of the portulaca oleracea L.

12. Methods Based on the literature about Portulaca oleracea L. at home and abroad, the constituents and the pharmacologic action were reviewed respectively.

13. Objective:To observe the effect of portulaca total flavone(PTF)on cardiac function and arterial pressure of anesthetic rats.

14. Objective To evaluate the inhibitory effect of portulaca total flavone(PTF)on the proliferation of rat aortic vascular smooth muscle cells(RASMC) and its mechanisms.

15. The survey and exploitation on Portulaca oleracea L is also introduced. The value of studying on the wild plant, Portulaca oleracea L(), is deeply expatiated.

16. Portulaca oleracea L. has extensive perspective in application and can be studied systematically.

17. Any of various fleshy plants of the genus Portulaca, especially P. grandiflora of South America, cultivated for its showy, colorful flowers that open only in sunlight.

18. A trailing Asian weed (Portulaca oleracea) having small yellow flowers, reddish stems, and fleshy obovate leaves that are sometimes cooked as a vegetable or used in salads.

19. Objective: To find out the effective component of portulaca oleracea L. on the mice in anoxia and mechanisms of anti-hypoxia effect of the herb.

20. Portulaca oleracea L. was a very valuable source of wild vegetable.

21. Table 1 Contact toxicity of different solvent extracts from dried powder of Portulaca oleracea L. against Aphis gossypii Glover.

22. This thesis studies about the form characters, resource distribution, nutritional, edible and officinal values of Portulaca oleracea L. , and hold forths theoretical basis for its exploitation.

23. Portulaca oleracea was made into dehydrated vegetable and its total flavones were 5.75%, polysaccharide was 9.15%. Based on these the health functions of portulaca oleracea were appraised.

24. Objective: To study the effects of n-butanol extracts from Portulaca oleracea on the learning and memory performances of senile mice induced by D-gal and its mechanisms.

25. METHODS The models of the mice's external ears' swell induced by xylene and croton oil, and the water extract of Portulaca oleracea L the spring beauty'swater with drawing material to it.