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Song Airong, research fellow of
Shandong Laiyang Academy of Agricultural Sciences has, on
the basis of his many— year study of a cancer
resistant fungi called Grifola frondosa, made progresses in
the technique to extract amylose from Grifola frondosa and
associated pharmacological study.
Mr. Song
explained that comparing with the direct extraction of
amylose from Grifola frondosa seeds, it is a competitive
approach to ferment Grifola frondosa fungi when they grow to
a certain size and then extract amylose from the fermenting
fluid. It is a quite difficult process to extract amylose
from Grifola frondosa seeds, as Grifola frondosa have the
difficulty to survive artificial growing and their
biological conversion rate have also been proved low. The
extraction from the fermenting fluid has found a fundamental
solution to the shortage of raw materials. The technique may
help identify fine fungi with high amylose content in the
fermenting liquid and improve the quality of fungi
extracted. Mr. Song also explained that Grifola frondosa
have a growth cycle that may last for 6— 8 months with
very restrict environmental requirements, which made the
lead time for amylose extraction too long. On the contrary,
it only takes 25 days from the first inoculation to the
termination of fermentation process in fermenting liquid,
which saves time, manpower and thus production
costs.
Mr. Song has so far screened out two
fine engineering fungi species, worked out the optimal
recipe for the fermenting fluid and temperature setting, and
finalized the extracting process ready for the pilot
development. The technique has led to 2 national invention
patent applications.
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