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Bambang Pontjo Priosoeryanto
Divisi Patologi, Sekolah Kedokteran Hewan Dan Biomedis, IPB University, Bogor, Indonesia
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Journal : Jurnal Pembelajaran dan Biologi Nukleus

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Pasteurization Effects on the Microbial Ecology of Functional Tempeh Developed from Black Rice Bran and Dual Rhizopus Strains Safrida, Safrida; Budijanto, Slamet; Nuraida, Lilis; Priosoeryanto, Bambang Pontjo; Syam, Nasrianti
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7483

Abstract

Background: Black rice bran has the potential to be a functional food raw material due to its high content of bioactive compounds; however, it is susceptible to microbial contamination. This study aims to evaluate the effect of pasteurization on the microbiological quality of fermented rice bran tempeh using Rhizopus oligosporus and Rhizopus oryzae. Methodology: The study employed a comparative experimental approach, where fermented for 72 hours with R. oligosporus and R. oryzae, grown in PDA medium, with the addition of spore suspensions at 15% each (10⁶ spores/mL). After fermentation, the bran was divided into two groups: one group was steamed for 10 minutes, while the other group was not steamed. Both groups were freeze-dried for 24 hours and then stored at -18 °C for analysis of changes in the profiles of total microbes, total fungi, total enterobacteria, and total spores. The raw material of rice bran was also analyzed microbiologically as a control. Microbiological data were analyzed using the Generalized Linear Model (GLM) and further evaluated by Duncan Multiple Range Test (DMRT) at a 5% significance level, as determined by SPSS 22.0 software. Findings: The results showed the pasteurization on bran tempeh products was effective in reducing the total number of microbes, moulds, Enterobacteriaceae, and spores compared to those without pasteurization. However, bran tempeh with R. oligosporus culture between pasteurized and unpasteurized did not show a significant decrease (p>0.05), except for the results of the analysis of the total number of moulds which showed a significant decrease (p<0.05), which was <1 log CFU/g (pasteurization) and 3.52 log CFU/g (without pasteurization). It can be concluded that the 10 minutes pasteurization process is effective in reducing the number of Enterobacteriaceae, which are indicators of polluting and pathogenic bacteria. Contribution: this treatment has potential to be applied on a home industry and Micro, Small and Medium Enterprises (MSME) scale to improve safety and extend the shelf life of fermented food products based on bran.
Co-Authors . CHURIYAH . Darmawi Adhi Rahmat Hariyadi Aditya Primawidyawan Agus Susanto Ahmad Aulia Ahmad Aulia Andra Hendriarto Andri Hardianto Andri Lubis Andri Prasetiyo Anggraeny Putri Sekar Palupi Anggraini, Lutvi Anissa Canintika Anita Esfandiari Annisa Fitriyana Ardi Sandriya Ari Fahrial Syam Ari Fahrial Syam Aria Kekalih Asri, Lia Amelia Tresna Wulan Aulia Andi Mustika Az Zahra, Shafiyyah Azhari Azhari Bambang Sunendar Purwasasmita, Bambang Sunendar Bayu Febram Bayu Febram Bayu Febram Prasetyo Bethy Suryawathy Hernowo Betty S.L. J Betty Sri Laksmi Jenie Budi Arifin Chudahman Manan Chudahman Manan Dahlia Sutanto Daldiyono Daldiyono Daldiyono Daldiyono Darmawi D Deddy Muchtadi Dede Robiatul Adawiyah Deni Noviana Denny Widaya Lukman Dewi Fatma Suniarti Dewi Ratih Agungpriyono Djarot Sasongko Hami Seno Dwi Kesuma Sari Dyah Sulistyani Rahayu Edy Djauhari Purwakusumah Eka Nurul Qomaliyah Endang Prangdimurt Endang Prangdimurti Endang Sjamsudin Erniati, Erniati Esti Mumpuni Eva Harlina Evy Damayanthi Fachriyan Hasymi Pasaribu Fachriyan Hasymi Pasaribu Fachrul Razi Fadila Raisyadikara Farra Sasmita Franky Oscar, Franky Fransiska R. Zakaria Fransiska Rungkat Zakaria Fransiska Rungkat Zakaria Gatot T. Mulyadi Gatot Trimulyadi Rekso Gunanati Soedjono Gunanti Gunanti . GUSTAF ADOLF WATTIMENA Hamny Sofyan Hartanti Hartanti Hartanti Hartanti, Hartanti Hasim Hasim Hatibie, Mendy Juniaty Hatta, Isnur Herwin Pisestyani Hidayat Syarief Husnawati, . I Made Kardena I Nyoman Suarsana I Nyoman Suartha I Wayan Gorda I wayan Teguh Wibawan IETJE WIENTARSIH Irmanida Batubara Iwan Harjono Utama Jimmy Pangihutan Juliana, Dara Kazuyuki Uchida Koeswinarning Sigit Komariah Komariah Kreshanti, Prasetyanugraheni Kuroki, Yutaka KUSMARDI KUSMARDI Kusumawati, Nina Tri Lanniari, Nafrina Latief, Benny Syariefsjah Latifah Darusman Lilis Nuraida Lina Noviyanti Sutardi Lisni Noraida Lubis, Septina Sabilla Lucky Riawan Lusi Epsilawati Madyastuti, Rini Mahdi Abrar Makmuri Yusuf MARIA BINTANG Maya Shofa Mieke Hemiawati Satari Mieke Hemiawati Satari Mieke Hermiawati Satari Miksusanti Miksusanti Mirnawati Soedarwanto Mirnawati Soedarwanto Mirnawati Soedarwanto Monica Septiani Muharty, Annisya Najmah Najmah Nancy Dewi Yuliana Naoaki Misawa NASRIANTI SYAM, NASRIANTI Nina Kusumawati Nur Fathonah Sadek Nurhidayat - Nurhidayat, Nurhidayat Okabayashi, Tamaki Prangdimurt, Endang Priskila Priskila Putu Angga Wiradana Putu Eka Sudaryatma Rachmi Ridho Rahmadansah Rahmadansah Rahminiwati, Min Rahyussalim Ratna Puspita Rayendra, Raendi Retno Wulansari Rifki Septawendar Riki Siswandi Rimbawan , Rini, Dian Cipta Ripta Mustafa Nugraha Risa Tiuria Riski Rostantinata Riski Rostantinata Rizal Syarief Rizal Syarief Rizki Fitria Rizki Rostantinata Ros Sumarny Rostantinata, Riski Ryoji Yamaguchi Sabri Mustafa Sadek, Nur Fathonah Safrida Safrida Sajida Sajida Samuel Leonardo Silitonga SANTOSO CORNAIN Sarifah, Norlaila Sebayang, Shalina SILMI MARIYA Slamet Budijanto Sri Anna Marliyati Sri Estuningsih Sri Kayati Widyastuti Subangkit, Mawar Sugeng Supriadi, Sugeng Sukasah, Chaula Luthfia Sunardhi Mangundjaja, Sunardhi Surachmi Setiyaningsih Surachmi Setyaninigsih Surya Pangidoan Nasution Suryani Suryani Suryani Suryani Susi Susanah Susumu Tateyama Syamsudin Abdillah Takeshi Katayama Tangkonda, Elisabet Tena Djuartina, Tena Toshisada Suzuki Tri Isyana Tungga Dewi Tri Isyani Tungga Dewi Tungga Dewi, Tri Isyani Tutik Wresdiyati Ummu Balqis Vetnizah Juniantito Wahyuni, Sri Waras Nurcholis Wasmen Manalu Wati, Vivi Septya Weko Adhiarto, Weko Wiranti, Rahayu Woro Yonathan Arderian Mantik Ziad Alaztha