Zygophyllum

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 2073 Experts worldwide ranked by ideXlab platform

An Li-zhe - One of the best experts on this subject based on the ideXlab platform.

  • Effect of Ultra-drying Storage on Seed Germinability and Vigor of Ammopiptanthus mongolica (Maxim) Cheng f. and Zygophyllum xanthoxylon
    Journal of Desert Research, 2007
    Co-Authors: An Li-zhe
    Abstract:

    This paper researched the ultra-drying treatment and storage of Ammopiptanthus mongolica(Maxim) Cheng f.and Zygophyllum xanthoxylon seeds.These seeds were desiccated by silica gel.The results showed that the seeds of Ammopiptanthus mongolica and Zygophyllum xanthoxylon had higher desiccation endurance.When seeds were desiccated to 4.67% and 3.89% water content,respectively,the higher viability and vigor could be retained,the cell membrane kept the relatively high integrality,the dehydrogenase activity,a-amylase and respiration intensity were relatively high.It was found that the water contents of 4.67% and 3.89% were the most suitable respectively for seed preservation of Ammopiptanthus mongolica and Zygophyllum xanthoxylon.

  • Effects of ultra-dry storage on the vigor and physiological characteristics of Zygophyllum xanthoxylon seed
    Journal of Lanzhou University, 2007
    Co-Authors: An Li-zhe
    Abstract:

    This study was to determine whether the vigor of the Zygophyllum xanthoxylon seeds can be maintained at a higher level and their storage characteristics can be improved by ultra-dry storage. The results showed that the Zygophyllum xanthoxylon seeds became more tolerant to aging condition if they could be dried to below 5% of moisture content. Under the same aging condition, the germination energy of seeds with 11.43% of moisture content has decreased greatly, while that of ultra-dry seeds still kept a high level. The dehydrogenase activity of ultra-dry seeds was higher than that of the control (moisture content 11.43%, aging treatment). Malonadehyde (MDA) and relative electric conductivity were decreased in ultra- dry seeds. Therefore ultra-dry seeds could improve the storability of Zygophyllum xanthoxylon seeds.

Viqar Uddin Ahmad - One of the best experts on this subject based on the ideXlab platform.

  • A New Ursane type Sulfated Saponin from Zygophyllum fabago Linn.
    ACG Publications, 2014
    Co-Authors: Saleha Suleman Khan, Viqar Uddin Ahmad, Amir Ahmed, Afsar Khan, Umar Farooq, Bilge Sener, Ajmal Khan, Aqib Zahoor, Nurgun Erdemoglu
    Abstract:

    One new sulfated saponin 3β,23,30-trihydroxyurs-20-en-28-al-23-sulfate 3-O-β- D -xylopyranoside (Zygofaboside C; 1) was purified from the water soluble fraction of ethanolic extract of the aerial parts of Zygophyllum fabago Linn. The structure of the compound was elucidated through spectral studies, especially 1D- and 2D-NMR, HR-FAB mass spectrometry, and comparison with literature data

  • Two new triterpenoids from Zygophyllum eurypterum.
    Natural product communications, 2011
    Co-Authors: Shazia Iqbal, Viqar Uddin Ahmad, Saleha Suleman Khan, Afsar Khan, Umar Farooq, Aqib Zahoor, Murad Ali Khan, Sadia Bader, Rasool Bakhsh Tareen
    Abstract:

    Two new triterpenoids trivially named as atriplicoide A and B were isolated from the n-BuOH extract of the whole plant of Zygophyllum eurypterum. Based on EI-MS, IR, 1H- and 13C-NMR, and 2D-NMR (HMQC, HMBC, COSY and NOESY) data, the structures of the new compounds were determined as 30-carboxy-3beta,24-dihydroxy-urs-28,13beta-lactam-N-acetate (1) and 3beta,24-dihydroxyursan-28,13beta-olide (2).

  • Sulfated Triterpene Glycosides from Zygophyllum Fabago
    Natural Product Communications, 2007
    Co-Authors: Viqar Uddin Ahmad, Saleha Suleman Khan, Amir Ahmed, Afsar Khan, Umar Farooq, Saima Arshad, Bilge Sener, Nurgun Erdemogluc
    Abstract:

    From the aerial parts of Zygophyllum fabago from Turkey, two new sodium salts of sulfated glycoside derivatives of ursolic acid, named as zygofaboside A (1) and zygofaboside B (2) have been isolated. Their structures were elucidated through spectral studies, including 2D-NMR spectroscopic experiments (HMQC, HMBC, COSY and NOESY).

  • Two New Saponins from Zygophyllum atriplicoides.
    ChemInform, 2006
    Co-Authors: Viqar Uddin Ahmad, Saima Arshad, Shazia Iqbal, Sadia Bader, Farzana Kousar, Rasool Bakhsh Tareen
    Abstract:

    Phytochemicals investigation of the whole plant of Zygophyllum atriplicoides resulted in the isolation of two new triterpenoidal saponins together with a known compound. The structure of the new compounds atriplicosaponin A (1) and atriplicosaponin B (2) were established as 3-O-[alpha-D-glucopyranosyl-(1-->2)-beta-D-xylopyranosyl]-hederagenin and 27 alpha-hydroxyurs-12-ene-3-O-[beta-D-glucopyranosyl(1-->4)(2-O-sulpho)-beta-D-quinovopyranoside] and known compound was identified as 3-O-[beta-D-glucopyranosyl]-beta-sitosterol. The structure elucidations of the compounds were based primarily on 1D and 2D-NMR analysis, including COSY, HMBC and HMQC correlations.

  • Saponins from Zygophyllum propinquum
    Phytochemistry, 1993
    Co-Authors: Viqar Uddin Ahmad, Ghazala, Shafi Uddin, M. S. Ali
    Abstract:

    Two new triterpenoid saponins zygophylosides D and E have been isolated from Zygophyllum propinquum. Their structures were elucidated as 3-O-[β-d-2-O-sulphonylquinovopyranosyl]-quinovic acid and 3-O-[β-d-2-O-sulphonylquinovopyranosyl]-quinovic acid-28-O-[β-d-glucopyranosyl]ester, respectively, by spectral and chemical studies.

Michèle Guyot - One of the best experts on this subject based on the ideXlab platform.

Dalila Smati - One of the best experts on this subject based on the ideXlab platform.

Ghazala - One of the best experts on this subject based on the ideXlab platform.

  • Saponins from Zygophyllum propinquum
    Phytochemistry, 1993
    Co-Authors: Viqar Uddin Ahmad, Ghazala, Shafi Uddin, M. S. Ali
    Abstract:

    Two new triterpenoid saponins zygophylosides D and E have been isolated from Zygophyllum propinquum. Their structures were elucidated as 3-O-[β-d-2-O-sulphonylquinovopyranosyl]-quinovic acid and 3-O-[β-d-2-O-sulphonylquinovopyranosyl]-quinovic acid-28-O-[β-d-glucopyranosyl]ester, respectively, by spectral and chemical studies.

  • STUDIES ON CHEMICAL CONSTITUENTS Zygophyllum PROPINQUUM (Z. COCCINEUM)
    1992
    Co-Authors: Ghazala
    Abstract:

    The work described in the present thesis is mainly concerned with the isolation and structure elucidation of saponin constituents of Zytgophyllum propinquum (Syn. Z coccineum L.) belonging to the family Zygophylla-ceae. As a result of these investigations five new triterpeniodal saponins have been isolated which were named as zygophyloside A, Zygphyloside B, Zygophloside C, Zygophykloside D and Zygophyloside E, Together with these compound another triterpenoidal saponin, one steroidal saponin and a triterpene ester were also isolated and reported for the first time from this plant. Zyugophyloside D and zygophyloside E were isolated from the column chromatography of the butanolic extract of Zygophyllum propinquum, while the rest of other compounds were isolated from the ethyl acedtate extract of this plant.

  • A triterpenoid saponin from Zygophyllum propinquum
    Phytochemistry, 1992
    Co-Authors: Viqar Uddin Ahmad, Ghazala, Shafi Uddin
    Abstract:

    Abstract A new triterpenoid saponin, 3-O-[α- l -arabinopyranosyl(l→2)-β- d -quinovopyranosyl]-quinovic acid-27-O-[β- d -glucopyranosyl]ester, along with two known compounds, 3-O-[β- d -glucopyranosyl]-β-sitosterol and erythrodiol-3-caffeate have been isolated from Zygophyllum propinquum and identified on the basis of spectroscopic and chemical evidence.

Related terms

Zygophyllum - 15 days free trial to Access Experts & Abstracts