Molecular phylogenetic analysis of wild Tiger's milk mushroom (Lignosus rhinocerus) collected from Pahang, Malaysia and its nutritional value and toxic metal content

W. H. Lai, S. S. Loo, N. Rahmat, S. Shaharuddin, Fauzi Daud, Zamri Zainal, N. M. Saleh

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Tiger's Milk mushroom has been used for medicinal purposes by local aborigines to treat asthma, breast cancer, cough, fever and food poisoning. Molecular phylogenetic analysis utilizing RNA polymerase II, second largest subunit (RPB2) gene, identified the wild Tiger's Milk mushrooms collected from the state of Pahang in Malaysia for this study as Lignosus rhinocerus in the order Polyporales. The tuber, stipe and pileus of this mushroom were analyzed for their basic nutritional composition (fat, protein, and carbohydrate) and toxic metal content profile (Cadmium, Lead and Mercury). The moisture content of these mushroom parts varied from 32.22% (pileus) - 46.31% (stipe). The dry matter of the mushrooms contained 2.76% (stipe) - 6.60% (pileus) proteins, 0.21% (pileus) - 0.30% (tuber) fat, 1.76% (stipe) - 4.38% (tuber) ash and 38.47% (stipe) - 56.30% (pileus) carbohydrates. The toxic metal content of the mushroom samples ranged from 0.03-0.12 mg/kg for Cd, 0.80-1.94 mg/kg for Pb and 0.05-0.10 mg/kg for Hg. The present study demonstrated that L. rhinocerus is a potential source of food due to its high carbohydrate content. In addition, the trace levels of toxic metals in this mushroom are within the safe level for consumption.

Original languageEnglish
Pages (from-to)2301-2307
Number of pages7
JournalInternational Food Research Journal
Volume20
Issue number5
Publication statusPublished - 2013

Fingerprint

Pleurotus tuber-regium
Tigers
Poisons
Agaricales
Malaysia
Nutritive Value
mushrooms
Milk
nutritive value
Metals
metals
phylogeny
tubers
Carbohydrates
Polyporales
carbohydrates
indigenous peoples
cough
asthma
Fats

Keywords

  • Lignosus rhinocerus Medicinal mushroom
  • Phylogenetic
  • Proximate analysis
  • RPB2 gene
  • Toxic metals

ASJC Scopus subject areas

  • Food Science

Cite this

Molecular phylogenetic analysis of wild Tiger's milk mushroom (Lignosus rhinocerus) collected from Pahang, Malaysia and its nutritional value and toxic metal content. / Lai, W. H.; Loo, S. S.; Rahmat, N.; Shaharuddin, S.; Daud, Fauzi; Zainal, Zamri; Saleh, N. M.

In: International Food Research Journal, Vol. 20, No. 5, 2013, p. 2301-2307.

Research output: Contribution to journalArticle

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