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Browsing by Author Yusuf, Helena
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Showing results 7 to 13 of 13
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Issue Date
Title
Author(s)
1997
Optimasi ph, kadar air dan suhu pada biodelignifikasi tandan kosong kelapa sawit
Yusuf, Helena
;
Panji, Tri
;
Tahang, Hasni
1997
Pemanfaatan ekstrak kepala udang untuk produksi biomassa bakteri fotosintetik anoksigenik MW-4
Yusuf, Helena
;
Suwanto, Antonius
;
Holil, Ade
1998
Pengaruh faktor fisiko-kimia, nisbah c/n media sintetik dan jenis media kompleks terhadap pertumbuhan bakteri fotosintetik anoksigenik (BFA) Riau 2
Yusuf, Helena
;
Hariyati, Anastasia Indra
1997
Pengaruh mutasi dengan radiasi ultraviolet (UV) terhadap kemampuan produksi pektinase dari beberapa strain Aspergillus niger
Yusuf, Helena
;
Ismayadi, Cahya
;
Istiariek, Dwi
1997
Produksi biomassa bakteri fotosintetik anoksigenik (BFAA) MWA dan SKX121 dengan memanfaatkan hasil samping industri pertanian
Yusuf, Helena
;
Suwanto, Antonius
;
Feriyanto, Hadi
1998
Rekayasa fotobioreaktor untuk produksi biomassa bakteri fotosintetik anoksigenik
Yusuf, Helena
;
Nasution, Muhammad Ali
1998
Studi kinetika kultivasi bakteri fotosintetik anoksigenik galur rhodobacter sphaeroides 2,4,1
Yusuf, Helena
;
Thamrin, Emitha