Free radical scavenging and antimicrobial properties of extracts of wild mushrooms

Oyetayo, Victor Olusegun

doi:10.1590/s1517-83822009000200031

Cited by 44 publications

(25 citation statements)

References 19 publications

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“…The hydroxyl ion scavenging ability of these extracts (Fig. 3) were not significant different (P>0.05) from the control (BHT) (Oyetayo, 2009). Other health promoting properties such as anticancer, antiviral, immunostimulatory effects etc had to be verified through contemporary research.…”

Section: Some Reports On Medicinal Uses Of Edible/medicinal Mushroomsmentioning

confidence: 72%

Medicinal uses of mushrooms in Nigeria: towards full and sustainable exploitation

Oyetayo¹

2011

Afr. J. Trad. Compl. Alt. Med.

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For centuries, mushrooms have been appreciated as sources of food nutrients and pharmacologically important compounds useful in medicine. Yet not all the medicinal properties of mushrooms have been exploited. The above statement is more pertinent to mushrooms that are indigenous to Nigeria. There are inadequate data on the identity and medicinal properties of these wild mushrooms. Information on the ethnomedicinal uses of some mushrooms such as Pleurotus tuber-regium used for headache, stomach pain fever, cold, constipation; Lentinus squarullosus for mumps, heart diseases; Termitomyces microcarpus for gonorrhea; Calvatia cyathiformis for leucorrhea, barreness; Ganoderma lucidum for treating arthritis, neoplasia; G. resinaceum used for hyperglycemia, liver diseases (hepatoprotector); G. applanatum used as antioxidant and for diabetes had been gathered through survey. The above information is mostly obtained from traditional herbalists who in most cases will not disclose their preparation compositions. A lot of these mushrooms are obtained only in the wild. Scientific documents of the identities and medicinal properties are still scanty. Preliminary studies on some species of Temitomyces, Lenzites and Lentinus species showed that they possess appreciable antimicrobial and antioxidant properties. Moreover, molecular characterization also reveals that they are not 100% homologous with existing sequences under the same name in GenBank. It is therefore pertinent that well structured studies on their ecology, identification and medicinal uses be carried out. This will make the full exploitation of the medicinal potentials of mushrooms indigenous to Nigeria realizable.

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Section: Some Reports On Medicinal Uses Of Edible/medicinal Mushroomsmentioning

confidence: 72%

Medicinal uses of mushrooms in Nigeria: towards full and sustainable exploitation

Oyetayo¹

2011

Afr. J. Trad. Compl. Alt. Med.

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“…3). Several authors have reported the hydroxyl radical scavenging effect of various mushrooms (Oyetayo, 2009;Khatua et al, 2015). Hydroxyl radical is an extremely reactive oxygen species that can propagate a chain reaction, wreaking havoc on many biological molecules such as DNA and lipids (Uttara et al, 2009;Kumar et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

In vitro Antiradical Activities of Trametes elegans Collected from Osengere, Ibadan, Nigeria

Awala¹,

Oyetayo²

2015

International J. of Biological Chemistry

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Extracts of Trametes elegans were examined for their total phenolic and flavonoid contents and in vitro antiradical potentials. Varying concentrations of the extracts were assessed against 1, 1-diphenyl-2-picrylhydrazyl (DPPH), Nitric Oxide (NO), hydrogen peroxide (H 2 O 2 ) and hydroxyl (OH) radicals. The result of the total phenolic content expressed in mg gallic acid equivalents per gram of dried extract (mg GAE gG 1 ) revealed that the acetone extract had higher phenolic content (4.79 mg GAE gG 1 ) than the methanol extract. However, the methanol extract had higher total flavonoid (2.27 mg RE gG 1 ) compared to the acetone extract. The extracts displayed appreciable radical scavenging activity to DPPH, NO and H 2 O 2 radicals. The scavenging activities of the extracts were, however, lower to that of the positive control (butylhydroxytoluene). On the other hand, the acetone extract displayed better scavenging activity than the positive control at a concentration of 2 mg mLG 1 . Result from this study suggest that this underutilized indigenous macrofungus, Trametes elegans, can be exploited as a source of bioactive compounds with antioxidant potentials that can neutralize the damaging effects of free radicals.

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“…The hydroxyl radical scavenging effect was comparable to that of butylated hydroxytoluene (BHT), which was used as the control sample. Moreover, the extract from the mushroom was able to inhibit growth of the following microorganisms: Candida albicans (MIC=12.5 mg/ml); Cryptococcus neoformans (12.5); Bacillus cereus (100); Bacillus subtilis (50); Staphylococcus aureus (100); Shigella dysenteriae (100); Salmonella typhimurium (50); Alcaligenes faecalis (12.5) [41].…”

Section: Lenzites Betulinamentioning

confidence: 99%

Medicinal properties of fungi occurring on Betula sp. trees. A review

Smolibowska

Szymański

2016

Herba Polonica

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S u m m a r yThe article presents the chemical costituents and pharmacological properties of polyporoid fungi found on birch, namely Piptoporus betulinus, Inonotus obliquus, Lenzites betulina, Fomes fomentarius, and Trametes versicolor. The in vitro and in vivo studies on the effect of different extracts from above-mentioned fungi on the human organism shown anti-cancer, anti-inflammatory, antiviral, antibacterial and immunostimulant activity, conditioned by the presence of such compounds as polysaccharides, polyphenols or terpenes. These fungi are commonly found in Poland and may superbly compete with Ganoderma lucidum (Reishi) or Lentinula edodes (Shitake) used in Asia for medicinal purposes.

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Free radical scavenging and antimicrobial properties of extracts of wild mushrooms

Cited by 44 publications

References 19 publications

Medicinal uses of mushrooms in Nigeria: towards full and sustainable exploitation

Medicinal uses of mushrooms in Nigeria: towards full and sustainable exploitation

In vitro Antiradical Activities of Trametes elegans Collected from Osengere, Ibadan, Nigeria

Medicinal properties of fungi occurring on Betula sp. trees. A review

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