Semi-continuous fermentation of chopped rice straw in a solid-state anaerobic digester: Influences of the tank height-to-diameter ratio, solid-state bed concentration, and leachate recirculation ratio

2021 ◽  
pp. 129710
Author(s):  
Junting Pan ◽  
Tao Luo ◽  
Yadong Yang ◽  
Fei Shen ◽  
Hailong Huang ◽  
...  
CrystEngComm ◽  
2021 ◽  
Vol 23 (7) ◽  
pp. 1657-1662
Author(s):  
Na Zhang ◽  
Yuqing Yin ◽  
Jian Zhang ◽  
Tao Wang ◽  
Siyuan Wang ◽  
...  

Lu2O3 crystals have attracted intense attention due to their great potential in the field of high power solid-state lasers.


2016 ◽  
Vol 3 (02) ◽  
Author(s):  
Cornelius Damar Hanung ◽  
Ronald Osmond ◽  
Hendro Risdianto ◽  
Sri Harjati Suhardi ◽  
Tjandra Setiadi

White rot fungi of Marasmius sp. is a fungus which produce laccase in high activity. Laccase is one of the ligninolityc enzymes that capable to degrade lignin. This ability can be used for the pretreatment of lignocellulosic materials in the bioethanol production. Laccase was produced in flask by batch process using Solid State Fermentation (SSF). The optimisation was conducted by statistically of full factorial design. The particle size, moisture content, and Cu concentration were investigated in this study. Rice straw was used as solid substrate and the glycerol was used as the carbon sources in modified Kirk medium. The results showed that particle size of rice straw did not affect significantly to the enzyme activity. The highest laccase activity of 4.45 IU/g dry weight was obtained at the moisture content of 61% and Cu concentration of 0.1 mM.Keywords: laccase, Marasmius sp., optimisation, rice straw, solid state fermentation ABSTRAKJamur pelapuk putih, Marasmius sp. merupakan jamur yang menghasilkan enzim lakase dengan aktivitas tinggi. Lakase merupakan enzim ligninolitik yang dapat mendegradasi lignin. Kemampuan ini dapat digunakan untuk proses pengolahan awal bahan lignoselulosa pada pembuatan bioetanol. Produksi lakase dilakukan dalam labu dengan modus batch menggunakan fermentasi kultur padat. Optimisasi produksi enzim lakase dengan metode fermentasi padat dilakukan dengan  rancangan percobaan faktorial penuh. Pengaruh ukuran partikel, kelembapan, dan konsentrasi Cu diuji dengan medium penyangga jerami dengan menambahkan gliserol dalam medium Kirk termodifikasi sebagai sumber karbon. Penelitian ini menunjukkan bahwa ukuran jerami tidak berpengaruh signifikan terhadap aktivitas enzim. Aktivitas enzim lakase maksimum terjadi pada saat kelembapan 61% dan konsentrasi Cu 0,1 mM dengan aktivitas enzim lakase/berat kering tertinggi mencapai 4,45 IU/g.Kata kunci: lakase, Marasmius sp., optimisasi, jerami, fermentasi kultur padat


2019 ◽  
Vol 277 ◽  
pp. 216-220 ◽  
Author(s):  
Lingyu Meng ◽  
Koki Maruo ◽  
Li Xie ◽  
Shohei Riya ◽  
Akihiko Terada ◽  
...  

2020 ◽  
Vol 154 ◽  
pp. 38-45 ◽  
Author(s):  
Chao Li ◽  
Yu Tao ◽  
Jun Fang ◽  
Qiang Li ◽  
Wenjing Lu

2017 ◽  
Vol 224 ◽  
pp. 78-86 ◽  
Author(s):  
Ying Zhou ◽  
Chao Li ◽  
Ivo Achu Nges ◽  
Jing Liu

2012 ◽  
Vol 63 (2) ◽  
pp. 443-450 ◽  
Author(s):  
Mathurot Chaiharn ◽  
Saisamorn Lumyong ◽  
Najmul Hasan ◽  
Abhinya Plikomol

2019 ◽  
Vol 293 ◽  
pp. 122066 ◽  
Author(s):  
Yang Liu ◽  
Junnan Fang ◽  
Xinyu Tong ◽  
ChenChen Huan ◽  
Gaosheng Ji ◽  
...  

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