Antimicrobial and antioxidant activities of Cortex Magnoliae Officinalis and some other medicinal plants commonly used in South-East Asia

Abstract

Background: Eight medicinal plants were tested for their antimicrobial and antioxidant activities. Different extraction methods were also tested for their effects on the bioactivities of the medicinal plants.

Anti-quorum sensing and antimicrobial activities of some traditional Chinese medicinal plants commonly used in South-East Asia

“…Indeed, L. brownii, also commonly known as lily bulb, has been shown to contain compounds that significantly inhibit the growth of melanoma B16 cancer cell line and lung cancer in mice (Zhao et al, 2002). The other TCM herb that showed an inhibition level of CV026 near that of neomycin is M. officinalis which has also been reported to have antimicrobial effects on the bacterial species Staphylococcus aureus, Bacillus subtilis and Mycobacterium smegmatis but as in our present investigation, little or no antimicrobial effect on P. aeruginosa (Chan et al, 2008). There have been many ethnobotanically-directed searches for agents to treat infections.…”

“…This however does not imply, as with other forms of medicines, every TCM therapy is effective and intensive research is ongoing to provide evidence of their efficacies. Studies on TCM for drug discovery have focused mainly on its antimicrobial potential (Chan et al, 2008;Seneviratne et al, 2008). Much less attention has been given to its other possible anti-pathogenic properties.…”

Anti-diarrhea and anti-oxidant properties of Magnolol

“…et Wils.). This herb has been widely used in the treatment of diseases such as thrombotic stroke, typhoid fever, anxiety and nervous disturbance, diarrhea, cough and phlegm [2,3]. A major bioactive constituent of Cortex Magnoliae Officinalis is magnolol (Fig.…”

Efficacy of Modified Ban Xia Xie Xin Decoction on Functional Dyspepsia of Cold and Heat in Complexity Syndrome: A Randomized Controlled Trial

“…This is in accordance with previous studies that showed physiological effects of the active ingredients in the modified Ban Xia Xie Xin decoction. In China, Ban Xia Xie Xin decoction is used for FD, and some of the active ingredients in the modified Ban Xia Xie Xin decoction have been shown to reinforce the protective function of the mucosa, regulate gastrointestinal function, and induce anti-inflammatory action against H. pylori [16][17][18][19][20]. However, herbal preparations are complex and contain a number of active ingredients that may work together.…”

“…We added related herbal medicines (Cortex Magnoliae officinalis, Medicated Leaven, Ark Shell) to that recipe to identify the formula of "modified Ban Xia Xie Xin decoction" that had a satisfactory clinical effect. Moreover, previous studies have shown that the active ingredients in the modified Ban Xia Xie Xin decoction can reinforce the protective function of the mucosa, regulate gastrointestinal function, and induce anti-inflammatory action against Helicobacter pylori [16][17][18][19][20].…”