Literature DB >> 12494352

Two new triterpenoids from the fresh leaves of Psidium guajava.

Sabira Begum1, Syed Imran Hassan, Bina S Siddiqui.   

Abstract

Two new triterpenoids, guajavolide (2 alpha,3 beta,6 beta,23-tetrahydroxyurs-12-en-28,20 beta-olide; 1) and guavenoic acid (2 alpha,3 beta,6 beta,23-tetrahydroxyurs-12,20(30)-dien-28-oic acid; 2) along with one known triterpene oleanolic acid (3) were isolated from the fresh leaves of Psidium guajava. Their structure elucidation and stereochemistry were determined by spectroscopic experiments, including 2D-NMR techniques.

Entities:  

Mesh：

Substances：

Year:  2002        PMID： 12494352     DOI： 10.1055/s-2002-36353

Source DB:  PubMed          Journal:  Planta Med        ISSN： 0032-0943            Impact factor:   3.352


  7 in total

1.  Guava leaf extracts alleviate fatty liver via expression of adiponectin receptors in SHRSP.Z-Leprfa/Izm rats.

Authors:  Hisae Yoshitomi; Xiangyu Guo; Tonghua Liu; Ming Gao
Journal:  Nutr Metab (Lond)       Date:  2012-02-20       Impact factor: 4.169

2.  Chemical composition, toxicity and antioxidant activities of essential oils of stem bark of Nigerian species of guava (Psidium guajava Linn.).

Authors:  Taiye R Fasola; Ganiyat Kehinde Oloyede; Babalola S Aponjolosun
Journal:  EXCLI J       Date:  2011-03-21       Impact factor: 4.068

3.  Guava Leaf Extract Diminishes Hyperglycemia and Oxidative Stress, Prevents β-Cell Death, Inhibits Inflammation, and Regulates NF-kB Signaling Pathway in STZ Induced Diabetic Rats.

Authors:  Muthukumaran Jayachandran; Ramachandran Vinayagam; Ranga Rao Ambati; Baojun Xu; Stephen Sum Man Chung
Journal:  Biomed Res Int       Date:  2018-02-18       Impact factor: 3.411

4.  Simultaneous Determination of α-Glucosidase Inhibitory Triterpenoids in Psidium guajava Using HPLC-DAD-ELSD and Pressurized Liquid Extraction.

Authors:  In-Cheng Chao; Ying Chen; Mei-Hua Gao; Li-Gen Lin; Xiao-Qi Zhang; Wen-Cai Ye; Qing-Wen Zhang
Journal:  Molecules       Date:  2020-03-11       Impact factor: 4.411

5.  Antimicrobial Activities of Leaf Extracts of Guava (Psidium guajava L.) on Two Gram-Negative and Gram-Positive Bacteria.

Authors:  Bipul Biswas; Kimberly Rogers; Fredrick McLaughlin; Dwayne Daniels; Anand Yadav
Journal:  Int J Microbiol       Date:  2013-10-20

6.  Effect of Aqueous Extract of Psidium Guajava Leaves on Liver Enzymes, Histological Integrity and Hematological Indices in Rats.

Authors:  Friday E Uboh; Iniobong E Okon; Moses B Ekong
Journal:  Gastroenterology Res       Date:  2010-01-20

7.  Evaluation of a mouthrinse containing guava leaf extract as part of comprehensive oral care regimen- a randomized placebo-controlled clinical trial.

Authors:  Namratha Nayak; Jothi Varghese; Seema Shetty; Vinutha Bhat; Tejal Durgekar; Richard Lobo; Usha Y Nayak; Vishwanath U
Journal:  BMC Complement Altern Med       Date:  2019-11-21       Impact factor: 3.659
  7 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.