Proximate Composition and Functionality of the Culinary-Medicinal Tiger Sawgill Mushroom, Lentinus tigrinus (Higher Basidiomycetes), from the Philippines

Abstract

The proximate composition and functionality of Lentinus tigrinus were evaluated to establish and popularize this mushroom as functional food source. The evaluation of functionality focused on the antibacterial and hypoglycemic activities of the mushroom extracts. An acute single oral dose toxicity test in mice was used for its biosafety analysis. The pileus contained higher amounts of protein (25.9%), fat (2.1%), and ash (7.4%) and a higher energetic value (142.1 kcal/100 g) than the corresponding stipe, whereas the stipe contained higher amounts of total carbohydrates (67.7%), which consist of dietary fiber (63.0%) and reducing sugar (4.7%), than the pileus. Biosafety analysis confirmed that L. tigrinus is an edible mushroom species; it was found to be toxicologically safe in imprinting control region mice. The administration of lyophilized hot water extract of the fruiting body (both 100 and 250 mg/ kg doses) to diabetic mice significantly lowered the glucose level by 26.9% in the third week, which was significantly comparable to the results of the antidiabetic agent glibenclamide, which was used as a positive control. In vitro antibacterial assay showed that the ethanolic extract of the fruiting body and the immobilized secondary mycelia had high antibacterial activities against Staphylococcus aureus but not on Escherichia coli. Combining its useful nutrients and significant biological properties, L. tigrinus can be considered a natural source of safe nutraceuticals.

New records of basidiomycetous macrofugi from Kurdistan region - Northern Iraq

“…Fr. Fruiting body: Cap 42 to 140 mm broad, fleshy, convex at early stage with blackish brown then becoming funnel shaped and white yellowish color with a somewhat wavy margin, upper surface covered with dense blackish brown hairs or scales which become scattered and crowded over the center in age; gills -like decurrent, white to yellowish white, crowded, toothed; stipe 48 to 62 mm long, 6 to 12 mm wide, yellowish white, centric, cylindrical, attenuate downwards into blackish root -like extension, covered with blackish brown hairy scales, dark at the base, often bent, hollow; ring and volva absent (Figure 11 fungus was reported from Turkey (Sesli and Denchev, 2008), south western Nigeria (Adejumo and Awosanya, 2005), Thailand (Karunarathnas et al, 2011), Philippine (Dulay et al, 2014;Dulay et al, 2012), Pakistan (Razaq and Shahzad, 2015) and India (Senthilarasu, 2015;Sharma and Atri, 2015).…”

Effects of Color Light Emitting Diode (LED) on the Mycelial Growth, Fruiting Body Production, and Antioxidant Activity of Lentinus tigrinus

“…This mushroom has been successfully rescued from the wild, cultured in optimum mycelial growth conditions and in sawdust-rice straw-based formulation as substrate for fruiting body production (Dulay et al 2012). It contains carbohydrates, proteins, fibers, minerals, and the extract exhibits hypoglycemic effect in alloxan-induced mice, antibacterial, antioxidant, and teratogenic activities (Dulay et al 2014a;Dulay et al 2014b;Dulay et al 2017a). In addition, we Vol.…”

Sterols from Lentinus tigrinus

“…3,6 In another study, L. tigrinus n-hexane extract was reported to contain flavonoid (3.67 μg/mg) and exhibited antibacterial activity. 7 We report herein the isolation of cerevisterol (1), stellasterol (2) (Figure 1). To the best of our knowledge, this is the first report on the isolation of 1-3 from the fruiting bodies of L. tigrinus.…”

“…Chemical investigation of the dichloromethane extract of the fruiting bodies of the mushroom Lentinus tigrinus afforded cerevisterol (1), and a mixture of stellasterol (2) and ergosterol (3) in about 4:5 ratio. The structure of 1 was elucidated by extensive 1D and 2D NMR spectroscopy and confirmed by comparison of its NMR data with literature data.…”

“…Lentinus tigrinus, also known as tiger sawgill or Kabuteng tigre is an edible saprobic mushroom of the family Polyporaceae which grows on fallen logs in the forest. [1][2] It is considered one of the most common rotting basidiomycetes yet very pleasing to the eye because of its color and appearance. 3 A study reported that the pileus of L. tigrinus contained higher amounts of protein (25.9%), fat (2.1%), ash (7.4%) and energetic value (142.1 kcal/100 g) than the stipe, while the stipe contained higher amounts of total carbohydrates (67.7%) than the pileus.…”