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Posts Tagged ‘alcohol’

Bioetanol 2 : Tinjauan Biokimia Sederhana

February 22nd, 2008

Pembuatan bioetanol berbahan baku pati, limbah rumput laut, limbah pabrik gula dan lain2; melalui beberapa perubahan struktur:

1. Bahan baku : biasanya merupakan polisakarida

2. Bahan setengah jadi : biasanya berupa oligosakarida atau monosakarida (glukosa)

3. Bahan jadi : etanol/alkohol.

Jika kebablasan … glukosa bisa jadi berubah asam (biasanya asam asetat) dan bukanlah etanol yang dipanen. Demikian.

bersambung …. (jika sempat).

Luthfi Riset , , , ,

Bioetanol (1)

February 18th, 2008

Beberapa bulan belakangan ini, kata bioetanol menjadi sesuatu yang sering muncul di media massa. Hihihihii … di blog ini baru muncul sekali ini. Apa sih yang dimaksud dengan bioetanol. Yok, kita nengok ke mas wiki sebentar:

Ethanol, also known as ethyl alcohol, drinking alcohol or grain alcohol, is a flammable, colorless chemical compound, and is best known as the alcohol found in thermometers and alcoholic beverages. In common usage, it is often referred to simply as alcohol. It is a straight-chain alcohol and its molecular formula is variously represented as EtOH, CH3CH2OH, C2H5OH or as its empirical formula C2H6O (which it shares with dimethyl ether).

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Luthfi Riset , , , ,