Liao Xiao-feng

Research Center for Eco-Environmental Sciences

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Anding Li

Guizhou Academy of Sciences

Yuangui Xie

Guizhou Academy of Sciences

Zhang DongKai

Guizhou University

Jiming Liu

Beijing Forestry University

CHE Jiaxiang -

Guizhou Academy of Sciences

Peng Xi

Development Research Center

Guorui Xu

Xishuangbanna Tropical Botanical Garden

Xuejiao Xu

Peking University

Jiming Liu

Sichuan University

LI Min-jin

Wuhan University

Cooperative Institutions

Guizhou University

Guizhou Academy of Sciences

Zhejiang University

Development Research Center

Huazhong University of Science and Technology

Sichuan University

Taiyuan University of Technology

Kunming University of Science and Technology

State Forestry and Grassland Administration

Ministry of Agriculture and Rural Affairs

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Synthesis of Oligo- L -Tyrosine via Bromelain

Chinese Journal of Applied Chemistry (2020)

Jiang Xiaoxiao Jinwen Zhu Liao Xiao-feng Yin Weiwei Gao Peng

Bromelain

10.11944/j.issn.1000-0518.2020.02.190224

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Detemination of nuciferine in space lotus leaf at different growth stages and harvest time by HPLC

Journal of Traditional Chinese Medicine University of Hunan (2013)

Liao Xiao-feng

Objective To establish a HPLC method for determination of nuciferine contents in space lotus leaf,and determine the content of nuciferine at different growth stages and harvest time.Methods The Hypersil BDS C18 column(4.6 mm×250 mm,5.0 μm) was used with acetonitrile-water-triethylamine-galcial acetic acid(27:70.6:1.6:0.78) as mobile phase,the flow rate was 1.0 mL/min and the UV detection wavelength was 270 nm.Results Under the chromatographic conditions,nuciferine was well separated and showed a good linear relationship at the range of 0.01 -0.2 mg/mL.The contents of nuciferine were significantly different at different growth stages and different harvest time,and were highest at early august in newborn leaves.Conclusion The content of nuciferine in nearly mature leaves was more than that in mature leaves.The content of nuciferine in nearly mature leaves at august and septemper was more than that at other month,so that the nearly mature leaves at august and septemper were best for harvest.These results may be useful for the development and utilization of Lotus leaf resources.

Lotus effect

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Effect of kinetin on sex ratio of floral organ of Jatropha curcas.

Guizhou nongye kexue (2011)

He Xu Jiming Liu Guijie Ding Guorui Xu Xuejiao Xu

The first Jatropha curcas flowers were treated with diffent kinetin concentration to study the effect on its female-male ratio for improving productivity of Jatropha curcas.The results showed that the female-male ratio of first Jatropha curcas flowers trested with 3 mg/L kinetin was up to 1∶11.9,5 mg/L kinetin could promote differentiation of female and male flowers,and the induction rate of female flowers and female-male ratio of first Jatropha curcas flowers increased with increase of kinetin concwntration when kinetin concentration was 1~3 mg/L.

Jatropha curcas

Kinetin

Jatropha

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Synthesis of ursolic acid ester and their antihepatodamage activity

Liao Xiao-feng

This paper reports preparation of four ursolic acid derivatives. Study on protective activity of ursolic acid on CCl4 hepatic damage indicated that the ursolic acid and derivatives at the doses of 60mg/kg significantly decreased the serum AST and ALT. The ursolic acid ethylic ester showed similar activity as that of ursolic acid against hepatic damage. Compared to ursolic acid, the ursolic acid diclofop ester demonstrated more potent protection on hepatic damage, even better than DGL.

Ursolic acid

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Physiological and biochemical characteristics of Blumea balsamifera under natural drought stress.

Guizhou nongye kexue (2014)

Xin Chi Liao Xiao-feng Jiming Liu Fan Tian Peng Li

Drought stress

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ADSORB AND ISOLATION AND PURIFICATION URSOLIC IN GARDENIA BY MACROFETICULAF RESIN

Shipin yanjiu yu kaifa (2007)

Liao Xiao-feng

The article researched in Isolation and purification ursolic from Gardenia Jasminodes eills by macrofeticulaf resin,the condition of adsorb and wash has been researched,the optimization condition of adsorb and wash is confirmed.the purification of Ursolic acid is 90.2 %。

Ursolic acid

Gardenia

Isolation

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Moisture content and biomass distribution of Drepanostachyum luodianense in different microhabitats.

Guizhou nongye kexue (2010)

Xuejiao Xu Jiming Liu Guorui Xu LI Min-jin He Xu

The biomass and moisture content of Drepanostachyum luodianense with 1～4 years age in different microhabitats were determined to provide theoretical basis for cultivation,development and utilization of Drepanostachyum luodianense in Karst areas.The results showed that the moisture content of different parts of Drepanostachyum luodianense decreased with the increase of age class,the moisture content and biomass distribution of different parts were both stemunderground partbranchleaf and the biomass distribution of different parts was three-year agetwo-year age four-year ageone-year age in the same microhabitat,the stem moisture content of Drepanostachyum luodianense in the same age class was stone slotstone crevicesoil surfacestone ditch,and the biomass distribution of Drepanostachyum luodianense was stone slot stone crevicesoil surfacestone ditch in the same microhabitat.

Ditch

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Study on the Inhibitory Action of Several Plants on Seed Germination of Eupatorium adenophorum

Seed (2009)

Liao Xiao-feng

Eupatorium adenophorum is one of the most dangerous invasive plants in China.To discuss the relationship between the allelopathy of native plants in Guizhou and seed germination of Eupatorium adenophorum,the method of culture dishes with filter paper was used to research effects of 10 kinds of leaf aqueous extract on seed germination of Eupatorium adenophorum.The results showed that allelochemicals of all 10 kinds of donor species have allelopathy on seed germination of Eupatorium adenophorum,and allelopathy increased with the enhancing of concentration.The germination speed index was more sensitive than germination rate.The effects of Camellia oleifera Abel.,Castanea mollissima Blume,Zanthoxylum bungeanum Maxim.and Itea ilicifolia Oliv.were the best,and the effects of Broussonetia papyifera Vent.,Sonchus arvensis L.and Setaria viridis(Linn.) Beauv.were not obvious.

Eupatorium

Allelopathy

Zanthoxylum

Setaria viridis

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Distribution Characteristics and Composition of Shrubbery in Pingtang County, Guizhou Province

Meng Guangwei Yanyan Dong Yuan Chen Zhang Huijiang Gang Xie

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STUDY ON EXTRACTION AND ANTIOXIDANT ACTIVITY OF POLYSACCHARIDES FROM OPUNTIA DILLENII HAW

Shipin yanjiu yu kaifa (2008)

Liao Xiao-feng

Study on the extraction technology and antioxidant activity of polysaccharides from Opuntia dillenii Haw.Single factor test and orthogonal test design methods L9(33)were applied to analyze the influencing factors such as extraction temperature,extraction time and material-water ratio on the extraction of the polysaccharides.The salicylic acid method was used to inspect the ability to antioxidant activity of polysaccharides from Opuntia dillenii Haw.Results showed that temperature was an important fact or for the extraction rate of the polysaccha-rides.The optimum extraction conditions were as follows:extraction temperature 80℃,material-water ratio1:60 and extraction time 4 h.The experiment of antioxidant activity shows that Opuntia dillenii Haw polysaccharides has good antioxidant activity.

Hot water extraction

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