Oncom is traditional to the Sunda people of West Java with Indonesia.
It is grown on food byproducts like the 'okara' or pulp left after
making tofu or soymilk. It resembles tempeh, in that oncom is often
grown on soy products. Oncom's active organism is different than
tempeh; oncom is Neurospora intermedia
For more information on oncom, see Shurtleff and Aoyagi's appendix H
within their _Book of Tempeh, Professional Edition, freely available
through googlebooks:
http://books.google.com/books?id=hdKzFlaqWT8C&pg=P205
Growth of oncom on okara from tofu and soymilk production could make a
food from otherwise wasted food-grade byproducts. I hope to grow
oncom, then teach others how to make oncom themslves - this could
allow self-employment by folks without a lot of capital all around the
world.
I have the culture and a source of okara; I need sterilization and
fermentation equipment access for the next step of trialing oncom.
Brian Cady