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Ragi - Yeast

Mengenal Ragi/Yeast

Menurut Louis Pasteur:
It was Louis Pasteur In 1859 who first discovered how yeast works:
  • Yeast feeds on the starches in flour, producing carbon dioxide
  • The carbon dioxide expands the gluten proteins in the flour
  • The gluten proteins cause the dough (of which flour is a main ingredient) to expand and rise
He unveiled these mysteries by proving that the yeast cell can live with or without oxygen. Pasteur understood very early on that yeast was indispensable for forming bread's aromas and flavours.

Cara berternak ragi

So, untuk mengembangbiakkan ragi sangat mudah:
*.Campurkan tepung terigu dengan air dengan takaran sama seperti membuat adonan tapi bertexture seperti tajin
*.Setelah menjadi seperti adonan langkah selanjutnya tinggal didiamkan agar ragi memakannya ^_^

Adonan tersebut akan mengembang jika takarannya tepat yaitu bertexture tajin.
Jika sudah mengembang artinya ragi telah memakannya.

Adonan tadi juga dapat dijadikan sebagai roti dengan cara:
*.Panggang adonan pada panggangan yg terbuat dari tanah liat (agar tdk melekat) dengan fungsi yg sama seperti sebuah oven
*.Tunggu hingga adonan menjadi roti

Juga dapat dibuat sebagai bir:
Beer is made from four basic ingredients: Barley, water, hops and yeast. The basic idea is to extract the sugars from grains (usually barley) so that the yeast can turn it into alcohol and CO2, creating beer. The brewing process starts with grains, usually barley (although sometimes wheat, rye or other such things.)

Dengan bahan2nya:
Barley (sejenis gandum)
Air
Hops (sejenis tanaman)
Ragi

Sumber:
http://www.breadworld.com/education/history-of-yeast/
http://www.exploreyeast.com/article/history-yeast
http://blog.beeriety.com/2009/07/06/how-beer-is-made/

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