The TigerMilk Mushroom(Lignosus spp.) is an important medicinalmushroom in Southeast Asia
and has been consumed frequently by the natives as a cure for a variety of illnesses. In this study,
we hypothesized that Lignosus tigris (cultivar E) sclerotium may contain high nutritional value
and antioxidant properties, is nontoxic and a potential candidate as a dietary supplement. The
chemical and amino acid compositions of the sclerotium were evaluated and antioxidant
activities of the sclerotial extracts were assessed using ferric reducing antioxidant power; 1,1-
diphenyl-2-picrylhydrazyl; and superoxide anion radical scavenging assays. Acute toxicity of the
L. tigris E sclerotiumwas assessed using a ratmodel study. The sclerotiumwas found to be rich in
carbohydrate, protein, and dietary fibers with small amounts of fat, calories, and sugar. The
amino acid composition of the protein contains all essential amino acids,with a protein score of
47. The sclerotial extracts contain phenolics, terpenoids, and glucan. The ferric reducing
antioxidant power values of the various sclerotial extracts (hotwater, coldwater, andmethanol)
ranged from 0.008 to 0.015 mmol min−1 g−1 extract, while the 1,1-diphenyl-2-picrylhydrazyl and
superoxide anion radical scavenging activities ranged from0.11 to 0.13, and −2.81 to 9.613mmol
Trolox equivalents g−1 extract, respectively. Acute toxicity assessment indicated that L. tigris E
sclerotialpowderwas not toxic at the dose of 2000mg kg−1. Inconclusion, L. tigrisEsclerotiumhas
the potential to be developed into a functional food and nutraceutical.
The TigerMilk Mushroom(Lignosus spp.) is an important medicinalmushroom in Southeast Asiaand has been consumed frequently by the natives as a cure for a variety of illnesses. In this study,we hypothesized that Lignosus tigris (cultivar E) sclerotium may contain high nutritional valueand antioxidant properties, is nontoxic and a potential candidate as a dietary supplement. Thechemical and amino acid compositions of the sclerotium were evaluated and antioxidantactivities of the sclerotial extracts were assessed using ferric reducing antioxidant power; 1,1-diphenyl-2-picrylhydrazyl; and superoxide anion radical scavenging assays. Acute toxicity of theL. tigris E sclerotiumwas assessed using a ratmodel study. The sclerotiumwas found to be rich incarbohydrate, protein, and dietary fibers with small amounts of fat, calories, and sugar. Theamino acid composition of the protein contains all essential amino acids,with a protein score of47. The sclerotial extracts contain phenolics, terpenoids, and glucan. The ferric reducingantioxidant power values of the various sclerotial extracts (hotwater, coldwater, andmethanol)ranged from 0.008 to 0.015 mmol min−1 g−1 extract, while the 1,1-diphenyl-2-picrylhydrazyl andsuperoxide anion radical scavenging activities ranged from0.11 to 0.13, and −2.81 to 9.613mmolTrolox equivalents g−1 extract, respectively. Acute toxicity assessment indicated that L. tigris Esclerotialpowderwas ไม่เป็นพิษที่ยาของ kg−1 2000 มิลลิกรัม Inconclusion, L. tigrisEsclerotiumhasศักยภาพที่จะพัฒนาเป็นอาหารและคุณภาพ
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