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All Journal Jurnal Teknologi Dan Industri Pangan Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Natur Indonesia Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Majalah Kulit, Karet, dan Plastik agriTECH Indonesian Food and Nutrition Progress Biosaintifika: Journal of Biology & Biology Education Jurnal Pengelolaan Laboratorium Pendidikan Buletin Anatomi dan Fisiologi (Bulletin of Anatomy and Physiology) Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan
Indrati, Retno
Department Of Food And Agricultural Product Technology, Faculty Of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No.1 Bulaksumur, Yogyakarta, Indonesia 55281
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health

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Microbial Conversion of Rice Straw Into Lactic Acid Through Simultaneous and Separate Hydrolysis and Fermentation Yuliana, Eva; Indrati, Retno; Setyabudi, Francis Maria Constance Sigit; Ningsih, Dewi Pujo; Sardjono, Sardjono
agriTECH Vol 45, No 2 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.81924

Abstract

Lactic acid is often produced from lignocellulosic materials through various steps, including pretreatment, hydrolysis, and fermentation. Therefore, this study aims to evaluate the conversion of lactic acid from rice straw using simultaneous and separate hydrolysis and fermentation. The process was initiated with and without pretreatment using Ca(OH)2 at 85 °C for 16 hours, followed by hydrolysis using Trichoderma reesei PK1J2 and fermentation with Rhizopus oryzae AT3. Hydrolysis and fermentation were performed simultaneously and separately. The results showed that pretreatment could reduce lignin content, but this process was not needed because Trichoderma reesei PK1J2 degraded lignin during hydrolysis. In addition, fermentation conditions in this study could not support the production of lactic acid by Rhizopus oryzae AT3. Based on biomass growth during the treatment, simultaneous hydrolysis and fermentation (108 mg/g dry substrate) was better compared to separate hydrolysis and fermentation (104 mg/g dry substrate).
Co-Authors Agnes Murdiati Bagus Fajar Pamungkas Bayu Kanetro Bayu Kanetro Bayu Kanetro Djagal W. Marseno Djagal Wiseso Marseno Djagal Wiseso Marseno Djagal Wiseso Marseno Endang S. Rahayu Hari Eko Irianto I Dewa Gde Mayun Permana Kapti Rahayu Kuswanto Kapti Rahayu Kuswanto Maria Ulfah Marta Tika Handayani Marwati Mary Astuty Masahiro Ogawa Muhammad Halim Muhammad Nur Cahyanto Ningsih, Dewi Pujo Nurin Imana Hidayati Pramesti Dewi Pudji Hastuti Pudji Hastuti Purnama Darmadji Purnomo Darmadji Rachma, Yasmin Aulia Rahayu, Novia Aristi Ria Millati Sardjono Sardjono Sardjono Sardjono Sardjono Sardjono Sardjono Sardjono Setyabudi, Francis M.C. Sigit Sigit Setyabudi Suci Apsari Pebrianti Suparmo Suparmo Supriyadi Supriyadi Supriyadi Supriyadi Suryanti Suryanti Suryanti Suryanti Sutardi Sutardi Sutardi Sutardi Sutardi Sutardi Titik Kurniawati Tranggono . Tranggono Tranggono Tyas Utami Tyas Utami V. Sri Pertiwi Rumiyati, V. Sri Pertiwi V.S. Pertiwi Rumiyati Widyahapsari, Dhina Aprilia Nurani Wisnu Adi Yulianto Yastanto, Anang Juni Yoshiyuka Ohta Yotty Atmajaya Yuliana, Eva Yusmarini Yusmarini Yustinus Marsono Yustinus Marsono Zuheid Noor Zuheid Noor Zuheid Noor Zuheid Noor Zulafa Noor