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Food Value and Safety Status of Raw (Unfermented) and Fermented Higher Basidiomycetes, Lenzites quercina (L) P. Karsten

Food value and safety of a wild macrofungus, Lenzites quercina were investigated. The proximate and mineral composition of raw and fermented L. quercina were assessed using standard methods. Brine shrimp… Click to show full abstract

Food value and safety of a wild macrofungus, Lenzites quercina were investigated. The proximate and mineral composition of raw and fermented L. quercina were assessed using standard methods. Brine shrimp lethality bioassay was adopted for assessment of the toxicological property of the extracts obtained from raw and fermented L. quercina. The result of proximate composition revealed higher protein content (26.15%) in fermented L. quercina, while the value of carbohydrate (38.3%), crude fibre (27.6%), and ash contents (6.5%) were higher (P<0.05) in raw L. quercina when compared to fermented L. quercina. The macro and micro elements in the raw and fermented L. quercina were in decreasing order of Ca> K> Zn> Fe> Na> Mg> Pb> Cu with values ranging from 4.04 mg/g to 721.6 mg/g. The amino acids in raw and fermented L. quercina ranged from 0.05 mg/g to 23.78 mg/g, while the fatty acids ranged from 0.11% to 38.5%. The mortality rate of the Artemia salina against the extracts was from 8.0% to 38.0% with lethal dose at 50% of population within 49.11 and 250.50 μg/mL. The results from this study revealed that L. quercina possesses essential amino acids, fatty acids, and substantial micro elements, which may be useful in the formulation of functional foods and nutraceuticals.

Keywords: value safety; food value; fermented quercina; lenzites quercina; food

Journal Title: Preventive Nutrition and Food Science
Year Published: 2018

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