Antioxidant properties of different edible mushroom species and increased bioconversion efficiency of Pleurotus eryngii using locally available casing materials

2013 ◽  
Vol 138 (2-3) ◽  
pp. 1557-1563 ◽  
Author(s):  
K.K. Mishra ◽  
R.S. Pal ◽  
R. ArunKumar ◽  
C. Chandrashekara ◽  
S.K. Jain ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Edible Mushroom ◽  
Pleurotus Eryngii ◽  
Mushroom Species

Mycochemical composition and antioxidant potential of Macrolepiota africana (Heim) Heinem. (Agaricaceae), an edible mushroom from Gabon

2021 ◽  
Vol 2 (1) ◽  
pp. 028-033
Author(s):  
Hugues Calixte Eyi Ndong ◽  
André Ledoux Njouonkou
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Activity Index ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Edible Mushroom ◽  
Mushroom Species ◽  
Chemical Screening ◽  
Ethanolic Extracts ◽  
Pharmacological Potential

Macrolepiota africana is a fungus used as food in Gabon for its culinary properties. However, its nutritional value, mycochemical contents, antioxidant properties and health potential still unknown. The present study investigated the phytochemicals and antioxidant properties of this mushroom species. This chemical screening was followed by a study of the antioxidant activity and a prediction of additional pharmacological activities of M. africana. Using standard methodology, the mycochemical analyses were carried out on aqueous, hydro-ethanolic and ethanolic fungi extracts. The antioxidant activity of the mushroom extracts was determined using DPPH radical scavenging assay. Apart from Digitoxigenine, flavonol and gitoxigenine that were not found in any of the extracts, all other tested mycochemical were found in atleast one of the extracts. Alkaloids, flavonoids, polyphenols, oses and holosides, proanthocyanidins and coumarins were found in all extracts at different intensity. Saponosids, sterols and triterpenes, tannins gallics, reducing sugar, anthracenosides and digitoxine were found in two extracts while tannins catechics, flavone and gitoxine were detected only in one extract. The dosage of phenolic compounds confirmed the richness of this fungus in total polyphenols, its moderate richness in proanthocyanidins, the lack of flavonoids in the aqueous extract and the moderate richness of the hydro-ethanolic and ethanolic extracts in flavonoids. Regarding the antioxidant activities, the results obtained for the DPPH trapping test showed that the different extracts had low to moderate antioxidant activity with antioxidant activity index (IAA) ranged 0.29 to 0.97 respectively in aqueous and ethanolic extracts. The presence of these mycochemical compounds along with the identified antioxidant activities shows that this M. africana have some pharmacological potential.

scholarly journals AMINO ACID COMPOSITION AND ANTIOXIDANT PROPERTIES OF FIVE EDIBLE MUSHROOM SPECIES FROM KASTAMONU, TURKEY

2018 ◽  
Vol 15 (2) ◽  
pp. 80
Author(s):  
Temel kan Bakır ◽  
Mansor Boufars ◽  
Mertcan Karadeniz ◽  
Sabri Ünal
Keyword(s):  
Antioxidant Activity ◽  
Amino Acid ◽  
Free Amino ◽  
Phenolic Content ◽  
Antioxidant Properties ◽  
Edible Mushroom ◽  
Total Phenolic ◽  
Mushroom Species ◽  
Boletus Edulis ◽  
Ic50 Values

Background: Hydnum repandum, Cantharellus cibarius, Ramaria fennica, Boletus edulis, and Craterellus cornucopioides are all wild edible mushroom species from the Kastamonu province. The aim of this study was to investigate antioxidant properties and amino acid contents of these mushrooms. Materials and Methods: The mushrooms were analyzed for their free amino acid compositions using a high performance Amino Acid analyzer (Biochrom 30). Also, antioxidant activity and total phenolic concentrations of five different mushroom species were studied by using spectrophotometric methods. Results: The mushrooms contained 17 amino acids (g/100 g): Glutamic acid (2.56–1.11), Alanine (1.49–0.54), Arginine (1.62–6.77), Aspartic acid (1.45–0.81), Leucine (1.08–0.64), Methionine (1.05–0.06), Valine (1.05–0.66), Lysine (1.01–0.57), Serine (0.68–0.38), Cysteine (0.88–0.11), Isoleucine (0.61–0.39), Glycine (0.82–0.35), Threonine (0.82–0.44), Phenylalanine (0.66–0.42), Proline (0.60–0.47), Tyrosine (0.58–0.38), and Histidine (0.48–0.22). The total free amino acid (TAA) contents ranged from 169.2 mg/g in Boletus edulis to 89.1 mg/g in Hydnum repandum. These five different mushroom species contain eight essential amino acid species except tryptophan. The antioxidant activity of mushroom extracts was expressed as the percentage of DPPH radical inhibition and IC50 values (mg/mL). The percentage of inhibition ranged from 2.38% to 88.05% and IC50 values ranged from 0.03 to 13.98 mg/mL. The total phenolic content ranged from 0.66 to 7.74 mg/g of dry mushroom extract, expressed as gallic acid equivalents. Conclusion: Methanolic extract of Boletus edulis showed the highest phenolic content and strong antioxidant activity. As a result, the significant linear correlation between the values for the total phenolic content and antioxidant activity of mushroom extracts was corroborated in all of the investigated mushroom species, with the exception of Craterellus cornucopioides.

Phenolic profile of three wild edible mushroom extracts from Ordu, Turkey and their antioxidant properties, enzyme inhibitory activities

2019 ◽  
Vol 121 (6) ◽  
pp. 1248-1260
Author(s):  
Melek Çol Ayvaz ◽  
Figen Aksu ◽  
Filiz Kır
Keyword(s):  
Enzyme Inhibition ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Edible Mushroom ◽  
Tyrosinase Activity ◽  
Total Phenolic ◽  
Mushroom Species ◽  
Content Type ◽  
Phenolic Profiles

Purpose Mushrooms have always been treasured and appreciated, thanks to their nutritional as well as medicinal properties. The purpose of this paper is to reveal these properties such as antioxidant activities and enzyme inhibition potentials of three mushroom species from Ordu, Turkey. Furthermore, phenolic profiles which are believed to be source of these properties are investigated. Design/methodology/approach The assays followed to determine total phenolic, flavonoid and antioxidant contents, antioxidative and enzyme inhibition activities are spectrophotometric methods. Phenolic profiles of mushroom samples were investigated by using the HPLC system. Findings The highest phenolic content was found for Lactarius deliciosus. Pyrogallol was the major phenolics in all three samples. Total phenolic content values supported that finding. But, total flavonoid content was the maximum for Cantharellus cibarius. The magnitude of the antioxidant activities revealed by the different tests varied between species. Furthermore, inhibition potential degrees on acetylcholinesterase, butrylcholinesterase, tyrosinase and urease activities were worth mentioning. Lactarius pyrogalus had anti-tyrosinase activity with a 26.229 percent inhibition rate. IC50 values for urease inhibition effect of mushroom samples were in the range of 0.37–0.90 mg/mL. Originality/value Enzyme inhibitory potentials for L. pyrogalus was revealed first time. On the other hand, studies on anti-tyrosinase activity of mushrooms are very rare, while almost no studies have been conducted on anti-urease activity. So, the results of present study are very valuable. Thus, the obtained data not only increase the ecological importance of the region but also provide significant contributions to the literature in terms of new sources rich in antioxidants.

scholarly journals Cadmium determination in Lentinus edodes mushroom species

2012 ◽  
Vol 32 (3) ◽  
pp. 553-557 ◽  
Author(s):  
Vera Akiko Maihara ◽  
Patricia Landim da Costa Moura ◽  
Marília Gabriela Miranda Catharino ◽  
Edson Gonçalves Moreira ◽  
Lilian Pavanelli Castro ◽  
...  
Keyword(s):  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Edible Mushroom ◽  
Sao Paulo ◽  
São Paulo ◽  
Lentinus Edodes ◽  
Inorganic Contaminants ◽  
Mushroom Species ◽  
Graphite Furnace Atomic Absorption ◽  
Japan And China

Many studies have drawn attention to the occurrence and concentration of toxic elements found in the fruiting body of mushrooms. Some edible mushroom species are known to accumulate high levels of inorganic contaminants, mainly cadmium, mercury, and lead. There are about 2,000 known edible mushroom species, but only 25 of them are cultivated and used as food. In Brazil, the most marketed and consumed mushroom species are Agaricus bisporus, known as Paris champignon, Lentinus edodes, or Shitake and Pleurotus sp, also called Shimeji or Hiratake. In this study, the concentration of cadmium was determined in Lentinus edodes mushrooms from different cities in São Paulo state and some samples imported from Japan and China. The analyses were performed by graphite furnace atomic absorption spectrometry after HNO3-H2O2 digestion. The results showed a lower concentration of Cd in the mushrooms cultivated in São Paulo (0.0079 to 0.023 mg.kg-1 in natura) than that of the mushrooms cultivated abroad (0.125 to 0.212 mg.kg-1 in natura). Although there is no tolerance limit for Cd in mushrooms in Brazil, the results show that Lentinus edodes mushrooms can be safely consumed.

scholarly journals Biological Properties of Silver Nanoparticles from β (1-3) Glucan Isolated from the Edible Mushroom Pleurotus florida

2020 ◽  
Vol 10 (2) ◽  
pp. 2096-2106
Keyword(s):  
Silver Nanoparticles ◽  
Drug Development ◽  
Hydroxyl Radical ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Edible Mushroom ◽  
Hot Water ◽  
Dependent Manner ◽  
Pleurotus Florida ◽  
Radical Scavenging Assay

Pleurotus florida of the genus Pleurotus is a delicious edible mushroom with high therapeutic potential. Silver nanoparticles (AgNPs) are gaining a lot of importance nowadays because of their wide industrial and biomedical applications. Capping of AgNPs with polysaccharides, the most potent mushroom derived metabolites, is promising towards natural drug development for free radical-induced ailments. In the present investigation, silver nanoparticles were synthesized using β-glucan isolated from P. florida, and their antioxidant properties were studied. Polysaccharide (PS) isolation was carried out by hot water extraction, alcohol precipitation, deproteinization, and dialysis. Preliminary characterization of PS by Anthrone, Lowry’s method, Paper Chromatography, and FT-IR showed that PS is protein-bound β-(1-3) - Glucan. Synthesis of Silver nanoparticle from PS (PS-AgNPs) was confirmed by UV spectroscopy. Antioxidant properties of PS and PS-AgNPs were evaluated by Total antioxidant capacity assay, DPPH assay, Total reducing power, and Hydroxyl radical scavenging assay. Both PS and PS-AgNPs showed profound antioxidant activity in a dose-dependent manner, and PS-AgNPs was more active than PS. The highest activity was shown in Hydroxyl radical scavenging assay in which PS and PS-AgNPs showed 81.8% and 89.4% activity, respectively, at the highest tested dose. The present study revealed the possible use of P. florida in antioxidant drug development.

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