The Open Conference Proceedings Journal

2013, 4 : 93-98
Published online 2013 November 15. DOI: 10.2174/2210289201304010093
Publisher ID: TOPROCJ-4-3-93

Basidiomycetes Mushroom Biotechnology for the Development of Functional Products: The Effect of Drying Processes on Biological Activity

Diego F. Rojas Vahos , Paola A. Zapata Ocampo , Ana M. Palacio Barrera , Sandra P. Ospina Alvarez and Lucía Atehortúa
Biotechnology Research Group, University Research Center (SIU) - Universidad de Antioquia, Calle 70 No. 52-21. Medellín, Colombia.

ABSTRACT

Ganoderma lucidum, Grifola frondosa and Agaricus blazei mushrooms were cultured in a 14 L bioreactor using low-cost, non-conventional culture media. To produce useful raw material for the development of functional products, the biomass produced in the bioreactors was subjected to the following drying processes: convection, infrared radiation, spray drying and freeze-drying. The highest antioxidant activity (ORAC values) and HMGCoA reductase inhibitory capacity were obtained with G. lucidum, (ORAC value of 10,594±128.1 and HMGCoA reductase inhibitory capacity of 78.22±0.01), followed by G. frondosa (ORAC value of 6,919±231.6 and HMGCoA reductase inhibitory capacity of 71.45±1.48) when the biomass was processed via freeze-drying.

Keywords:

Antioxidant capacity, biomass, forced convection.