In vitro antibacterial and antioxidant activities of Orthosiphon stamineus Benth. extracts against food-borne bacteria

Ho, Chun-Hoong; Ismail, Normah; Sulaiman, Shaida Fariza; Ahmad, Rosma

doi:10.1016/j.foodchem.2010.03.110

Cited by 83 publications

(57 citation statements)

References 27 publications

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“…The O. stamineus extract used in this study was more in a crude form, which may explain its low antibacterial activity. Previous studies which reported the protective effects of O. stamineus employed methanolic (Chun-Hoong et al, 2010;Malahubban et al, 2013) and ethanolic extracts (Alshawsh et al, 2012;Mohamed et al, 2012).…”

Section: Journal Of Agricultural Sciencementioning

confidence: 99%

In vitro Antibacterial Activity of Zingiber officinale and Orthosiphon stamineus on Enterococcus faecalis

Abidin¹,

Abdul-Wahab²,

Ghazi-Ahmad³

et al. 2017

JAS

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This study evaluates the antibacterial effects of Zingiber officinale essential oil and Orthosiphon stamineus water extract against Enterococcus faecalis. The herbs were prepared in various concentrations to determine their minimum inhibitory concentrations (MIC) and growth inhibitory effect. Anti-adhesion activities of the herbs were determined by co-incubation with E. faecalis cultures for 6 and 24 h. Biofilm disruption activities were determined by adding the studied herbs into preformed E. faecalis biofilm. The effects on the morphology of E. faecalis grown as biofilm were studied using scanning electron microscopy (SEM). The MICs of ginger oil and O. stamineus extract were 0.31 and 25 mg/mL, respectively. Between the tested herbs, ginger exhibited greater inhibitory effects on the growth of E. faecalis grown in suspension mode. Both herbs generally showed anti-adhesion activities in inverse concentration-dependent manner. No significant biofilm disruption activities by both herbs were observed. SEM analyses showed E. faecalis cell surface changes in the treated biofilm. The studied herbs may have compromised the integrity of the bacterial cell membrane. These findings suggest that the studied herbs may have better antibacterial activities against E. faecalis in suspension mode compared to biofilm mode, with ginger oil showed greater antibacterial activity compared to O. stamineus extract.

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Section: Journal Of Agricultural Sciencementioning

confidence: 99%

In vitro Antibacterial Activity of Zingiber officinale and Orthosiphon stamineus on Enterococcus faecalis

Abidin¹,

Abdul-Wahab²,

Ghazi-Ahmad³

et al. 2017

JAS

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“…Results in - Fig.4‖ demonstrated that all samples exhibited dose-dependent DPPH radical scavenging activities expressed as IC 50 values. The free radical-scavenging capacity was different between the fresh ginger and the dried ginger extracts.…”

Section: Antioxidant Activitymentioning

confidence: 97%

“…Control sample was prepared without adding extract. The antiradical activity was expressed as IC 50 (µg/mL), the extract dose required to cause a 50% inhibition. A lower IC 50 value corresponds to a higher antioxidant activity of plant extract.…”

Section: Scavenging Ability On Dpph Radicalmentioning

confidence: 99%

“…It is well known that methanol and other alcohols possess bactericidal activity due to their lipophilicity which enhances penetration into target organisms [50]. Because of this fact, we use only pure water to dissolve all the extracts, thus eliminating the influence of alcohol and DMSO usually used to dissolve extracts before being tested for their bactericidal activities.…”

Section: Antibacterial Activitymentioning

confidence: 99%

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Impact of Infra-red drying temperature on total phenolic and flavonoid contents, on antioxidant and antibacterial activities of ginger (Zingiber officinale Roscoe).

Jihène¹

2013

IOSR-JESTFT

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“…O. stamineus is traditionally used in Malaysia for treatment of bladder inflammation, eruptive fever, oedema, hepatitis, jaundice, hypertension, diabetes mellitus, gout, rheumatism, diuretic problems and influenza [1]. Previous studies revealed that extract of O. stamineus contained many medically useful bioactive compounds such as terpenoids, polyphenols and sterols that provide diuretic [2], antidiabetic [3], antiangiogenic and antiproliferative properties [4].…”

Section: Introductionmentioning

confidence: 99%

Extraction and Microencapsulation of Polyphenols from Orthosiphon Stamineus Leaves

Pang¹,

Yusoff

Gimbun

2014

J MECH ENG SCI

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This paper presents an extraction and microencapsulation study of polyphenols obtained from Orthosiphon stamineus leaves. Extraction using aqueous solvent enabled a simultaneous extraction of both hydrophilic and lipophilic phenolic compounds. Higher solid concentration leads to higher solution viscosity, bigger particle size, lower moisture content and a less dented surface, which may improve particle flowability. The results suggest that eupatorin and rosmarinic acid are more susceptible to thermal degradation than sinensetin during spray drying. The formulation of 1:9 whey protein to maltodextrin ratio was also found to be more effective, with 86.7% total flavonoids retention compared to other formulations, viz, 1:1 and 9:1.

show abstract

In vitro antibacterial and antioxidant activities of Orthosiphon stamineus Benth. extracts against food-borne bacteria

Cited by 83 publications

References 27 publications

In vitro Antibacterial Activity of Zingiber officinale and Orthosiphon stamineus on Enterococcus faecalis

In vitro Antibacterial Activity of Zingiber officinale and Orthosiphon stamineus on Enterococcus faecalis

Impact of Infra-red drying temperature on total phenolic and flavonoid contents, on antioxidant and antibacterial activities of ginger (Zingiber officinale Roscoe).

Extraction and Microencapsulation of Polyphenols from Orthosiphon Stamineus Leaves

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