Chemical Constituents from fruits of Eucalyptus globulus / 中草药

Objective: To study the chemical constituents from the fruits of Eucalyptus globulus. Methods: The chemical constituents were separated by column chromatography, such as silica gel, sephadex LH-20, and semi-preparative HPLC. On the basis of spectral data analysis, their structures were elucidated. Results: Twelve compounds were isolated and purified which structures were elucidated as 1,10-dioxotayloriane (1), litseagermacrane (2), (-)-globulol (3), (-)-epiglobulol (4), viridiflorol (5), oleanolic acid (6), betulinic acid (7), ursolic acid (8), robustanic acid (9), 1-(2,6-dihydroxy-4-methoxy-3,5-dimethylphenyl)-2-methylbutan-1-one (10), ellagic acid (11), and 3-O-methylellagic acid-4'-O-α-L-rhamnopyranoside (12). Conclusion: Compounds 1 and 2 are isolated from the Eucalyptus L. Herit for the first time, compounds 9 and 10 are isolated from this plant for the first time.

Research advances on chemical constituents of Eucalyptus globulus and their pharmacological activities / 中草药

Eucalyptus globulus, a kind of plant in Eucalyptus of Myrtaceae family, is commonly used in the leaves and fruits with the function of dispersing wind and clearing heat, bacteriostatic antiphlogistic, and anticorrosion itching. The bioactive chemical constituents in its fruits, leaves, and stem barks are mainly composed of phloroglucinol derivatives, flavonoides, and triterpenoids as well. Many compounds from this plant exhibit the interesting pharmacological activities, such as anti-microbial, antiviral, antitumor, and, anti-oxidant activities, and so on. The recent progress in the studies of the constituents and their pharmacological activity of this plant is reviewed in this paper, by which the prospect of development and utilization of E. globulus could be prospected. It provides the reference for the further development and comprehensive utilization of the resources of E. globulus.

Determination of Amino Acids in Fruit of Eucalyptus Globulus / 中国药房

OBJECTIVE: To study the compositions and contents of Amino Acids in the Fruit of Eucalyptus globulus Labill. . METHODS: The contents of total Amino Acids and free Amino Acids in the Fruit of Eucalyptus globulus Labill. were determined with Amino Acid analyzer. RESULTS: The content of total Amino Acids in the Fruit of Eucalyptus globulus Labill. was 4. 76g, among which that of the Amino Acids essential for human body was 2. 11g ( accounting for 44. 3% ) ; the content of free Amino Acids was 25. 29mg, among which that of the Amino Acids essential for human body was 9. 3mg( accounting for 36. 7% ) . CONCLUSIONS: The Fruit of Eucalyptus globulus Labill. is rich in Amino Acids, and is of high nutritional value.

GC fingerprint of the constituents in the volatile oil of Eucalyptus globulus Labill / 中成药

AIM:To establish a method for GC fingerprint determination of the chemical constituents in the volatile oil of Eucalyptus globulus Labill.in Yunnan Province,China. METHODS: GC was used to optimize the fingerprint determination method,and to identify the main peaks in the GC fingerprint. RESULTS: 16 mutual peaks were gained on the base of 10 batches of samples. CONCLUSION: Stable and reproducible GC fingerprint is helpful to further analyze the volatile oil constituent of Eucalyptus globulus Labill.