Tahun ini lab Bioindustri dapat hibah pengajaran untuk mata kuliah Bioindustri sehingga dilakukan rapat untuk merencanakan program kuliah yang akan dilakukam.
dalam rapat diputukan bahwa sistem pengajaran mencakup:
1. Tugas terstruktur (25%) : sebanyak 8 tugas (laporan dan presentasi)
2. Praktikum (20 %) : 4 acara
3. Studi kasus (15 %) : 2 kasus sebelum dan sesudah UTS
4. Quiz (10 %) : Tiap kali kuliah
5. UTS (15 %)
6. UAS (15 %)
Pembagian Materi Kuliah:
1. Pendahuluan - WJT
2. Bahan Baku - WJT
3. Bakteri - WJT
4. Khamir - WJT
5. Kapang - NHT
6. Penyiapan Kultur - NAF
7. Kultr Batch - NAF
8. Kultur fed-batch dan Kontinyu - NAF
9. Fermentasi substrat padat - IRN
10. Fermentasi substrat cair - IRN
11. Fermentor - IRN
12. Pemurnian Produk - NAF
13. Pengembangan produk - NHT
14. Pemasaran produk - NHT
Demikian rencana kuliah, jika ada komentar atau saran dipersilahkan.
Kamis, Agustus 30, 2007
Rabu, Agustus 29, 2007
STaf Lab yang Tugas belajar
Saat ini staf lab bioindustri yang tugas belajar ada dua yaitu:
Bu Hindun menempuh S3 di TIP FTP Unibraw Malang.
Bu Neneng menempuh Master di Environmental Management School of Geography Planning and Architecture The University of Queensland.
Seluruh staf dosen dan laboran mengucapkan selamat belajar semoga sukses selalu
Bu Hindun menempuh S3 di TIP FTP Unibraw Malang.
Bu Neneng menempuh Master di Environmental Management School of Geography Planning and Architecture The University of Queensland.
Seluruh staf dosen dan laboran mengucapkan selamat belajar semoga sukses selalu
Selasa, Agustus 28, 2007
Pengukuhan Guru Besar Bu Trisye
Pada Hari Senin Pak Wigf dan Pak Nur berangkat ke Jogja untuk menghadiri pengukuhan Guru besar Prof.Dr.Ir. Endang Sutriwati Rahayu di UGM dalam bidang Mikrobiologi Pangan dengan pidato pengukuhan:Prospek Bakteri Asam Laktat Hasil Rekayasa Genetika Di Bidang Industri Pangan".
Selamat buat Bu Trisye dari kami semua.
Selamat buat Bu Trisye dari kami semua.
Jumat, Agustus 24, 2007
Jus Tomat probiotik
Pada hari Jum'at 24 Agustus 2007 Bu Nia dibanti Yuli dn dua siswa SMK yang sedang PKL melakukan penyuluhan dalam rangka pengabdian ipteks di Desa DAU.
penyuluhan mengenai pembuatan jus tmat probiotik agar tomat yang kita minum selain menyegarkan dan kaya vitamin juga mempunyai muatan probiotik yaitu bakteri yang baik bagi saluran pencernaan kita.
semoga masyarakat yang mendapat penyuluhan mampu memanfaatkan sehingga apa yang telah disampaikan tidaklah sia-sia
selamat buat Bu Nia
semoga makin banyak karyanya.
penyuluhan mengenai pembuatan jus tmat probiotik agar tomat yang kita minum selain menyegarkan dan kaya vitamin juga mempunyai muatan probiotik yaitu bakteri yang baik bagi saluran pencernaan kita.
semoga masyarakat yang mendapat penyuluhan mampu memanfaatkan sehingga apa yang telah disampaikan tidaklah sia-sia
selamat buat Bu Nia
semoga makin banyak karyanya.
Kamis, Agustus 23, 2007
Hydrogen is the central free intermediate during lignocellulose degradation by termite gut symbionts
Michael Pester1 and Andreas Brune
The ISME Journal advance online publication, 2 August 2007
http://www.nature.com/ismej/journal/vaop/ncurrent/abs/ismej200762a.html
Abstract
The key role of free hydrogen in the digestion of lignocellulose by wood-feeding lower termites and their symbiotic gut microbiota has been conceptually outlined in the past decades but remains to be quantitatively analyzed in situ. Using Reticulitermes santonensis, Zootermopsis nevadensis and Cryptotermes secundus, we determined metabolite fluxes involved in hydrogen turnover and the resulting distribution of H2 in the microliter-sized gut. High-resolution hydrogen microsensor profiles revealed pronounced differences in hydrogen accumulation among the species (from <1 kPa to the saturation level). However, flux measurements indicated that the hydrogen pool was rapidly turned over in all termites, irrespective of the degree of accumulation. Microinjection of radiotracers into intact guts confirmed that reductive acetogenesis from CO2 dominated hydrogen consumption, whereas methanogenesis played only a minor role. Only negligible amounts of H2 were lost by emission, documenting an overall equilibrium between hydrogen production and consumption within the gut. Mathematical modeling revealed that production dominates in the gut lumen and consumption in the gut periphery for R. santonensis and Z. nevadensis, explaining the large accumulation of H2 in these termites, whereas the moderate hydrogen accumulation in C. secundus indicated a more balanced radial distribution of the two processes. Daily hydrogen turnover rates were 9–33 m3 H2 per m3 hindgut volume, corresponding to 22–26% of the respiratory activity of the termites. This makes H2 the central free intermediate during lignocellulose degradation and the termite gut—with its high rates of reductive acetogenesis—the smallest and most efficient natural bioreactor currently known.
Keywords: hydrogen turnover, metabolite fluxes, methanogenesis, quantitative degradation model, reductive acetogenesis, symbiosis
The ISME Journal advance online publication, 2 August 2007
http://www.nature.com/ismej/journal/vaop/ncurrent/abs/ismej200762a.html
Abstract
The key role of free hydrogen in the digestion of lignocellulose by wood-feeding lower termites and their symbiotic gut microbiota has been conceptually outlined in the past decades but remains to be quantitatively analyzed in situ. Using Reticulitermes santonensis, Zootermopsis nevadensis and Cryptotermes secundus, we determined metabolite fluxes involved in hydrogen turnover and the resulting distribution of H2 in the microliter-sized gut. High-resolution hydrogen microsensor profiles revealed pronounced differences in hydrogen accumulation among the species (from <1 kPa to the saturation level). However, flux measurements indicated that the hydrogen pool was rapidly turned over in all termites, irrespective of the degree of accumulation. Microinjection of radiotracers into intact guts confirmed that reductive acetogenesis from CO2 dominated hydrogen consumption, whereas methanogenesis played only a minor role. Only negligible amounts of H2 were lost by emission, documenting an overall equilibrium between hydrogen production and consumption within the gut. Mathematical modeling revealed that production dominates in the gut lumen and consumption in the gut periphery for R. santonensis and Z. nevadensis, explaining the large accumulation of H2 in these termites, whereas the moderate hydrogen accumulation in C. secundus indicated a more balanced radial distribution of the two processes. Daily hydrogen turnover rates were 9–33 m3 H2 per m3 hindgut volume, corresponding to 22–26% of the respiratory activity of the termites. This makes H2 the central free intermediate during lignocellulose degradation and the termite gut—with its high rates of reductive acetogenesis—the smallest and most efficient natural bioreactor currently known.
Keywords: hydrogen turnover, metabolite fluxes, methanogenesis, quantitative degradation model, reductive acetogenesis, symbiosis
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