Two students course of study Chemical SCIENCES Faculty of Education State University of Yogyakarta Imas Widowati Athika Wirastiti and creating and developing seeds of Leucaena leucocephala tempe as a substitute for soy.
"Seeds of Leucaena leucocephala, 40 percent protein fat (6,13), extract material without nitrogen (24,53), coarse fiber (8,79), and minerals (9,32)," Widowati Imas said in Yogyakarta, Friday.
According to him, having regard to the elements contained in the seeds of Leucaena were plain to see that the seeds of Leucaena leucocephala can be used as a substitute material for the manufacture of soy tempeh.
"The making of Leucaena leucocephala seed is fairly easy to tempe and simple. The manufacturing process is similar to the process of making soy tempeh, "he said.
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Athika Wirastiti said in the process of making tempe Leucaena seeds affected by several factors: the process of creating, administering and temperature curing yeast, tempe.
Giving of ragi tempe will affect Leucaena seeds fermented into tempe. If the yeast is given too much then tempe will rot, otherwise if too little mushroom Hypha then tempe will not grow.
In addition, the granting of the yeast must also be in a State of Leucaena leucocephala seed is dry because wet conditions in Leucaena seeds can trigger the growth of bacteria or bacterial contaminants pembusuk that causes the fermentation process to be disturbed and could not be the tempe.
According to him, the process of making seed tempe Leucaena begins with the process of hydration or pickling namely Leucaena seeds by soaking overnight in order to undergo the process of hydration of seeds.
Moisture content of Leucaena seeds will go up by roughly twice the moisture content of Leucaena seeds so it's easier to break down miselia fungus fermentation process time.
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In addition, the process of immersion also gave the chance of bacterial growth-lactic acid bacteria that happens a decrease pH and inhibit the growth of bacteria-bacterial contaminants that are pembusuk.
Furthermore the process of heating or boiling the seeds after soaking to kill bacteria-bacterial contaminants, trypsin inhibitors, compounds enable and help liberate compounds in the seed required for mold growth.
He said at the final stage of the fermentation process that is performed by administering tempe yeast on Leucaena seeds provided in dry and cold conditions.
The fermentation process takes approximately three days to fungal Hypha can form an interlacing of the mold that is compact and solid.
According to him, tempe has a distinctive flavor of Leucaena leucocephala, unlike soy tempeh, the seeds are smaller and more delicate than soy.
"A bit of Leucaena leucocephala seed Tempe feels oily skin because the seeds," he said.