scholarly journals Efficient Regeneration of the Eucommia ulmoides Oliver Plant from Hypocotyl Explant

2007 ◽  
Vol 1 (1) ◽  
pp. 75-77
Author(s):  
Ren Chen ◽  
Sachiko Namimatsu ◽  
Yoko Nakadozono ◽  
Yoshihisa Nakazawa ◽  
Koichiro Gyokusen
Keyword(s):  
Eucommia Ulmoides ◽  
Eucommia Ulmoides Oliver ◽  
Efficient Regeneration

scholarly journals Extraction optimization of Eucommia ulmoides Oliver and its effect on bone quality in OVX rats

2020 ◽  
Vol 19 (3) ◽  
pp. 623-628
Author(s):  
ZhengNan Zhao ◽  
XiangLong Yang ◽  
Maoxun Li ◽  
Fang Yu ◽  
HaiDong Liang
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Bone Quality ◽  
Vehicle Group ◽  
Eucommia Ulmoides ◽  
Box Behnken Design ◽  
Solid Ratio ◽  
Extract Yield ◽  
Ovx Rats ◽  
Eucommia Ulmoides Oliver

Purpose: To maximize the yield of extract from Eucommia ulmoides Oliver and its effect on bone quality. Methods: Different extraction indices were optimized with response surface methodology (RSM) for maximization of extract yield from Eucommia ulmoides Oliver. Box–Behnken design (BBD) was used to identify the effects of temperature, time, and liquid to solid ratio on extract yield from Eucommia ulmoides Oliver. After 4-week acclimatization, thiry-two rats were randomly assigned to 4 groups (n = 8): group 1 (sham) given vehicle only; group 2 (OVX rats given Eucommia ulmoides Oliver extract at a dose of 4 g/kg; group 3 (OVX + vehicle); group 4 (OVX + EUOE), i.e., OVX rats given Eucommia ulmoides Oliver extract (4 g/kg). Sham rats had intact ovaries. After surgery, the rats received gentamicin intramuscularly for 3 successive days. Two months after surgery, blood and trabecular bones was taken for analysis. Results: Temperature and liquid-to-solid ratio had marked impact on extract yield from Eucommia ulmoides Oliver, with the best conditions being temperature of 88 °C, time of 137 min, and liquid to solid ratio 16:1. Using these optimized conditions, the maximum yield of extract obtained experimentally (2.53%) was very close to the predicted value of 2.49 %. There was a good fit between the mathematical model evolved and the data on extract yield. The extract significantly (p < 0.01) increased the Ca and P and Cr levels in OVX + EUOE group compared to those in OVX control. Moreover, the extract significantly (p < 0.01) increased macro-mechanical indices of trabecular bone in OVX+EUOE group, relative to those in OVX control. Conclusion: The yield of Eucommia ulmoides Oliver extract has been successfully optimized using RSM. The extract exhibited strong effects on bone quality. Keywords: Optimization, Eucommia ulmoides, Box–Behnken design, Response surface methodology, Bone loss, Gene

Isolation and analysis of four constituents from barks and leaves of Eucommia ulmoides Oliver by a multi-step process

2016 ◽  
Vol 83 ◽  
pp. 124-132 ◽  
Author(s):  
Ming-Qiang Zhu ◽  
Jia-Long Wen ◽  
Ya-Hong Zhu ◽  
Yin-Quan Su ◽  
Run-Cang Sun
Keyword(s):  
Eucommia Ulmoides ◽  
Step Process ◽  
Eucommia Ulmoides Oliver

Lignans and phenolic constituents from Eucommia ulmoides Oliver

2019 ◽  
pp. 1-8
Author(s):  
Qi Huang ◽  
Jian-Bing Tan ◽  
Xiang-Chang Zeng ◽  
Ya-Qin Wang ◽  
Zhen-Xing Zou ◽  
...  
Keyword(s):  
Eucommia Ulmoides ◽  
Phenolic Constituents ◽  
Eucommia Ulmoides Oliver
Sign in / Sign up

Export Citation Format

Share Document