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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Renewable Product Technology Research » Research » Publications at this Location » Publication #335837

Research Project: Technologies for Producing Biobased Chemicals

Location: Renewable Product Technology Research

Title: Identification of molecular species of acylglycerols of Philippine wild edible mushroom, Ganoderma lucidum

Author
item Hou, Ching
item Lin, Jiann-tsyh - Central Luzon State University
item Dulay, Rich Milton - Central Luzon State University
item Ray, Karen

Submitted to: American Oil Chemists' Society Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 1/5/2017
Publication Date: 4/30/2017
Citation: Hou, C.T., Lin, J., Dulay, R., Ray, K.J. 2017. Identification of molecular species of acylglycerols of Philippine wild edible mushroom, Ganoderma lucidum [abstract]. American Oil Chemists' Society Annual Meeting, April 30-May 3, 2017, Orlando, FL.

Interpretive Summary:

Technical Abstract: Wild edible mushrooms are widely consumed in many countries. We successfully cultivated four edible, medicinal Philippine mushrooms in liquid culture. Recently, we identified the molecular species of acylglycerols in the lipid extract of mushroom G. lucidum NRRL66208. One hundred and three molecular species of acylglycerols containing all normal fatty acids were identified by the MS fragmentation involved their constituent fatty acids. The chain lengths of the constituent fatty acids were from 14 to 26 carbon atoms and the numbers of double bonds were from zero to three. The contents of the molecular species of triacylglycerols in the mushroom lipid extract in decreasing order were: OOP (2.45%), OOO (1.94%), LLP (1.92%), OLP (1.80%), LLO (1.57 %), OPP (1.30%), OOL (1.09%), OOS (0.88%), and LLL (0.85%). Forty-one molecular species of acylglycerols out of 103 contained fatty acids with odd numbered carbon atoms. The fatty acids with odd numbered carbon atoms were 15:0, 17:0, 17:1, 19:0, 19:1, 21:0, 23:0, and 25:0. The total content of fatty acids with odd numbered carbon atoms was about 6.6% of all of the fatty acids of the triacylglycerols containing three normal fatty acids, and contents of individual fatty acids with odd numbered carbon atoms were as: 15:0 (2.76%), 17:0 (2.13%), 17:1 (1.35%), 19:0 (0.20%), 19:1 (0.17%). The contents of fatty acids with odd numbered carbon atoms in mushroom were high compared to those in higher plants. This is the first report on the molecular species of acylglycerols in mushroom.