Antimicrobial Activities of Quercus infectoria Gall Extracts: A Scoping Review

Journal of Herbal Medicine ◽

10.1016/j.hermed.2022.100543 ◽

2022 ◽

pp. 100543

Author(s):

Wan Abdul Wahab Wan Nor Amilah ◽

Mohamad Ahmad Najib ◽

Noor Jamil Noor Izani ◽

Muhammad Faez Arizam

Keyword(s):

Scoping Review ◽

Antimicrobial Activities ◽

Quercus Infectoria

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Chemical composition of essential oil by SPME and evaulation antimicrobial, antioxidant activities of medicinal plant of Quercus infectoria galls

Acta Scientiarum Polonorum Hortorum Cultus ◽

10.24326/asphc.2021.6.10 ◽

2021 ◽

Vol 20 (6) ◽

pp. 93-103

Author(s):

Sule Ceylan ◽

Şehmuz Semih Yardımcı ◽

Yasemin Camadan ◽

Özlem Saral ◽

Özge Özsen Batur

Keyword(s):

Essential Oil ◽

Solid Phase ◽

Antioxidant Activities ◽

Volatile Oil ◽

Antimicrobial Activities ◽

Total Polyphenol ◽

Chemical Combination ◽

High Antioxidant Activity ◽

Quercus Infectoria

Quercus infectoria galls have been utilized to cure widespread illnesses. In line with it, this paper aims to investigate the chemical combination of the volatile oils obtained from galls of Q. infectoria and evaluate their antioxidant and antimicrobial features. The volatiles of Q. infectoria has been isolated by solid-phase microextraction (SPME). The compositions of the volatiles were revealed via gas chromatography coupled with mass spectrometry (GC-MS). Twenty-nine substances have been characterized in the volatile essential oil of Q. infectoria. The major components of the volatile oil were (Z)-Anethol 28.55%, pentadecanolide (26.44%), diethyl phthalate (6.46%), and acetoin (5.66%). Q. infectoria showed good-moderate antimicrobial (Staphylococcus aureus, Streptomyces griseolus, Pseudomonas citronellosis) and antifungal (Candida glabrata, Candida krusei) activities against to test microorganisms with MIC value 250 µg/mL and 125 µg/mL, respectively. Also, total flavonoid and total polyphenol amounts were found for Q. infectoria, and our total polyphenol result (342.87 mg GAE/g) was found higher than the studies in the literature. At the same time Q. infectoria has been observed to have high antioxidant activity according to DPPH, FRAP, and CUPRAC assays. Especially it exhibited excellent DPPH activity for the IC50 rate of 0.002 μg/mL which is higher than the standard Trolox (IC50 = 0.008 μg/mL). This study is important because it is the first one, which reports the determination of essential oil, total polyphenol, flavonoid contents, antioxidant, and antimicrobial activities all together for Q. infectoria.

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