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C Hanny Wijaya
Departemen Ilmu Dan Teknologi Pangan, Fakultas Teknologi Pangan, IPB University, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Journal : Microbiology Indonesia

 1 
Role of Bacteria in Tempe Bitter Taste Formation: Microbiological and Molecular Biological Analysis Based on 16S rRNA Gene TATI BARUS; ANTONIUS SUWANTO; ARIS TRI WAHYUDI; HANNY WIJAYA
Microbiology Indonesia Vol. 2 No. 1 (2008): April 2008
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (44.007 KB) | DOI: 10.5454/mi.2.1.4

Abstract

Tempe is traditional Indonesian food. It has a variety of tastes, sometimes with a hint of bitterness, which may differ in intensity. The cause of bitterness in tempe has never been reported previously. In this study, the aim is to identify whether bacteria play a role in the formation of bitter tastes in tempe. Sensory tests were carried out in order to determine the scoresof bitter-taste-intensity in tempe. The sensory test on EMP, WJB, CLR, DRG, and MLB tempe shows that EMP tempe has the highest score (2.3) and WJB has the lowest (1.3). It is revealed that the processing method has no impact on the formation of the bitter taste in tempe. Plating analysis, showed that EMP soaking water contained a higher number of Enterobacteria groupbacteria, approximately 103-104 CFU ml-1 and spore-forming bacteria groups, 102 CFU ml-1, compared to WJB. Similarly, other bacteria groups in fresh EMP tempe was 102 CFU g-1 higher than those in fresh WJB tempe. Based on sequencing the16S rRNA gene, the dominant bacteria on PCA media in EMP tempe are Acetobacter indonesiensis, Klebsiella pneumoniae, Bacillus subtilis, and Flavobacterium sp. On the other hand those in WJB tempe were Klebsiella sp., Brevundimonas sp., Bacillus sp., Pseudomonas putida, and Acinetobacter sp. Bacillus, a group of proteolytic bacteria was found 105 CFU m-1 higher in the soaking water of EMP compared to WJB. Nevertheless, the types and numbers of fungi were not significantly different betweentempe types. Accordingly, it is concluded that the difference in the number and the types of bacteria involved in the tempe production process leads to the difference in the bitter taste intensity in both EMP and WJB tempe.
Co-Authors ,, Lune ,, Lune ,, Sumarlan ,, Sumarlan - Misnawi A'yuni, Qurrata A. Fieki Rachmatillah Aditya Prayoga Ahmad Ibrahim Akyla, Clarissa Alfi Khatib Anggraini Barlian Anton Apriyantono Antonius Suwanto Aris Tri Wahyudi Ariza Budi Tunjung Sari Azis Boing Sitanggang A’yuni, Qurrata Boy M Bachtiar Bram Kusbiantoro Bram Kusbiantoro Budi Nurtama Cindy Carolina Cindy Caroline Clarissa Akyla Daisy Irawan Darwati Susilastuti Dede R. Adawiyah Dede Robiatul Adawiyah Dedi Fardiaz Desianto Budi Utomo Diah Ratnadewi Djaya, Adrianson Agus Djaya, Adrianson Agus Djoko Said Damardjati Dody D. Handoko Dondin Sajuthi Eddie Gurnadi Efendi, Darda Elis Dihansih Elisabeth Kartika Prabawati Elviana Yaputra Endang Prangdimurti Ervizal AMZU Evy Damayanti Faisal, Andrian Ibnu Ferdiansyah Ferdiansyah Feri Kusnandar Firdaus Syafi'i Florensia Irena R. Napitupulu FRANSISKA RUNGKAT ZAKARIA Hafida Kusumaningrum Handoko, Dody D. Hanifah Nuryani Lioe Heriyanto Heriyanto Herwint Simbolon Herwint Simbolon, Herwint Hidayat Syarief Hunaefi, Dase Hunaefi, Dase I Kadek Putra Yudha Prawira I Komang Gede Wiryawan I Made Putrawan Ika Dewi Ana Indriyani, Susi Intan Kusumaningrum Irene Triyanti Hadiprodjo Jeremia M. Halima Juliani - Kadie, Evi Marlia Kadie, Evi Marlia Kusumaningrum, Hafida Leenawaty Limantara Lisa Amanda Yakhin M. Halima, Jeremia MADE ASTAWAN Mardhiyyah, Yunita Siti Maria Dewi Puspitasari Tirtaningtyas Gunawan-Puteri Maryati Maryati Maya Saputri Mega Safithri Mitsuru Osaki Mitsuru Osaki Monita Rekasih Mutiara Utami Nancy D. Yuliana Napitupulu, F. Irena Napitupulu, Florensia Irena R. Nasution, Zuraidah Natania, Natania Noryawati Mulyono Nuri Andarwulan Nuri Arum Anugrahati Olivia Yofananda, Olivia Paini Sri Widyati Peni Harjosworo PENI SUPRAPTI HARDJOSWORO Pipi Puspita Sari Purwiyatno Hariyadi Puspita Sari Raffi Paramawati Rasyidi, Mohammad Arif Rizka Musdalifah Amsar Rizqi Sofi Nur Fitriyah Rudy Priyanto Rukmi, Paramita Sadha Dayinta S. Sulistiyani Safir Abadi Salindri Prawitasari Sari, Bernadeta RE Sigit Suharta Siti Nurjanah SITI NURJANAH Slamet Budijanto Sobir Sobir Sonatha, Mei Diana Stefani Djunaidi Sukarno Suliantari Suliantari Sulistiyani, S. Suminar S. Achmadi SUMINAR SETIATI ACHMADI Susi Indriyani Syahrir Akil Tati Barus Tensiska, Tensiska Tesy Pratami Titri S. Mastuti Tjahja Muhandri Triati Dewi Kencana Wungu Unang Supratman Winiati Pudji Rahayu Wiranda Gentini Piliang Wuryaningsih Sri Rahayu Yadi Haryadi Yakhin, Lisa Amanda Yanetri Asi Nion, Yanetri Asi Yaputra, Elviana Yasuyuki Hashidoko