Integrated Process for -glucan Concentrate from Ganoderma lucidum by Extraction and Micronization
Siti Machmudah *
Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
Shoko Kodama
Department of Chemical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Wahyudiono .
Department of Chemical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Hideki Kanda
Department of Chemical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Motonobu Goto
Department of Chemical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
*Author to whom correspondence should be addressed.
Abstract
Hydrothermal treatment is an environmentally friendly technique with a wide range of applications such as extraction, hydrolysis, and wet oxidation of organic compounds. In this work, water under hydrothermal conditions was used to extract b-glucan from Ganoderma lucidum (G. lucidum) at 433 K and 4.0 MPa using a semi-batch system. The extracts were then directly atomized and contacted with a hot inert gas to produce microsphere particles. When nitrogen was used as the inert gas, the moisture evaporated faster than when normal air was used at the same inlet gas temperature. Scanning electron microscopy (SEM) images showed that corrugated particles were obtained, with diameters varying from 3 to 20 microns. The b-glucan content in the particle products was 40 to 45% in weight, approximately.
Keywords: G. lucidum, -glucan, extraction, nitrogen, autohydrolysis