Potential of apple pomace as a solid substrate for fungal cellulase and hemicellulase bioproduction through solid-state fermentation

2012 ◽  
Vol 38 ◽  
pp. 6-13 ◽  
Author(s):  
Gurpreet Singh Dhillon ◽  
Surinder Kaur ◽  
Satinder Kaur Brar ◽  
Mausam Verma
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Solid Substrate ◽  
Apple Pomace ◽  
Fungal Cellulase

Lactoserum as a moistening medium and crude inducer for fungal cellulase and hemicellulase induction through solid-state fermentation of apple pomace

2012 ◽  
Vol 41 ◽  
pp. 165-174 ◽  
Author(s):  
Gurpreet Singh Dhillon ◽  
Satinder Kaur Brar ◽  
Surinder Kaur ◽  
Sabrine Metahni ◽  
Naceur M'hamdi
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Apple Pomace ◽  
Fungal Cellulase

scholarly journals OPTIMISASI PRODUKSI ENZIM LAKASE PADA FERMENTASI KULTUR PADAT MENGGUNAKAN JAMUR PELAPUK PUTIH Marasmius sp. : PENGARUH UKURAN PARTIKEL, KELEMBAPAN, DAN KONSENTRASI Cu

2016 ◽  
Vol 3 (02) ◽  
Author(s):  
Cornelius Damar Hanung ◽  
Ronald Osmond ◽  
Hendro Risdianto ◽  
Sri Harjati Suhardi ◽  
Tjandra Setiadi
Keyword(s):  
Particle Size ◽  
Solid State ◽  
Moisture Content ◽  
Rice Straw ◽  
Solid State Fermentation ◽  
Carbon Sources ◽  
White Rot Fungi ◽  
Batch Process ◽  
Solid Substrate ◽  
White Rot

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

scholarly journals Performance of Fungal Growth Through Integrated Gompertz Model and Respiratory Quotient by Solid State Fermentation in Multi-Layer Squared Tray Solid State Bioreactor with Aeration Strategies

2021 ◽  
Author(s):  
Musaalbakri Abdul Manan ◽  
Colin Webb
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Respiratory Quotient ◽  
Fungal Growth ◽  
Gompertz Model ◽  
Solid Substrate ◽  
Aspergillus Awamori ◽  
Promising Alternative ◽  
Fungal Activity ◽  
On Line

Abstract A newly designed, laboratory-scaled and multi-layer squared tray solid state bioreactor (SSB), was developed and successfully operated in solid state fermentation (SSF) conditions. The bioreactor was divided into eight layers of squared perforated trays. Wheat bran was used as a solid substrate for the growth of Aspergillus awamori and Aspergillus oryzae. The SSB was equipped with an oxygen (O2)/carbon dioxide (CO2) gas analyser and a thermocouple. Continuous on-line monitoring of fungal growth could be performed by indirect methods that measure O2 consumed, production of CO2 and metabolic heat. The advantage of using this method is that there are no tedious and time-consuming sampling processes. The evolution of CO2, which represents an accumulation term, was integrated with time and fitted to the Gompertz model in a log-like equation. The Gompertz model generated values that may be used to stimulate and verify the experimental data. Results strongly suggest that the evolved and accumulated CO2, excellently described fungal growth. Simulated results agreed with experimental results. The respiratory quotient (RQ), which is the ratio of CO2 evolution rate (CER) to O2 uptake rate (OUR), was determined by the gas balance method. CER and OUR confirmed that measurements correlated to fungal activity. Each RQ values can explain the differences of each SFF process carried out. Yet, heat evolved by fungal activity also described fungal growth. The current findings is an excellent pre-liminary experimental work, evidencing that multi-layer squared tray SSB with forced moistened aeration present a promising alternative of instrumented bioreactors for SSF processes.

Production and characterization of aroma compounds from apple pomace by solid-state fermentation with selected yeasts

LWT ◽  
2015 ◽  
Vol 64 (2) ◽  
pp. 1342-1353 ◽  
Author(s):  
Roberto Rodríguez Madrera ◽  
Rosa Pando Bedriñana ◽  
Belén Suárez Valles
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Apple Pomace ◽  
Aroma Compounds

Efficient Production of Laccase from Armillariella tabescens by Solid State Fermentation

2014 ◽  
Vol 1010-1012 ◽  
pp. 42-47
Author(s):  
Jun Yao He ◽  
Xuan Yi Ye ◽  
Qing Zhi Ling ◽  
Li Hui Dong
Keyword(s):  
Solid State ◽  
Moisture Content ◽  
Nitrogen Source ◽  
Solid State Fermentation ◽  
Initial Moisture Content ◽  
Nitrogen Sources ◽  
Solid Substrate ◽  
Laccase Production ◽  
Efficient Production ◽  
Operational Variables

The production of laccase by solid-state fermentation (SSF) usingArmillariella tabescenswas studied. Wheat bran was selected to be the most suitable solid substrate. Several operational variables including nitrogen source, moisture content, copper and aromatic inducers were investigated. The results showed that the complex nitrogen sources, NH4NO3coupled with peptone was shown to be the best nitrogen source. 75% of initial moisture content was proved to be appropriate. Copper significantly influenced the laccase production and the yield of laccase was improved by addition of 1.5 mM copper sulphate in the medium. Guaiacol efficiently induced the laccase production and the enzyme yield (24500U/g) was enhanced by 32% compared with he control without any aromatic inducers. Efficient production of laccase fromA. tabescenscan be achieved by solid-state fermentation.

scholarly journals Assessment of Polysaccharide and Biomass Production from Three White-Rot Fungi by Solid-State Fermentation Using Wood and Agro-Industrial Residues: A Kinetic Approach

Forests ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1055
Author(s):  
Óscar J. Sánchez ◽  
Sandra Montoya
Keyword(s):  
Mathematical Model ◽  
Solid State ◽  
Solid State Fermentation ◽  
Lentinula Edodes ◽  
Value Added ◽  
Solid Substrate ◽  
White Rot ◽  
Industrial Residues ◽  
Polysaccharide Production ◽  
Value Added Products

Research Highlights: For the first time, a model was developed and applied for polysaccharide production from Trametes versicolor grown in agro-industrial and woody residues under solid-state fermentation (SSF) conditions. Background and Objectives: Fungal biomass is an important biological resource for biotechnological applications. Basidiomycetes fungi can be grown and developed on lignocellulosic materials such as forestry, wood, and agro-industrial residues in order to produce value-added products like bioactive polysaccharides. The objectives of this study were to evaluate the effects of the C/N ratio and copper concentration on biomass and polysaccharide production during solid state fermentation (SSF), as well as on the consumption of cellulose and hemicellulose, and lignin degradation, and to propose and validate a mathematical model to describe the overall SSF process. Materials and Methods: This research was carried out by growing three Basidiomycetes species (T. versicolor, Lentinula edodes, and Pleurotus ostreatus) on twelve formulations of solid substrates using mixtures of different inexpensive lignocellulosic residues such as oak sawdust, coconut fiber (hairs), coffee husks, and corn bran plus soybean oil, calcium carbonate, and two levels of copper(II) sulfate. Results: The three fungal species grew well on all substrate formulations. The statistical analysis of experimental data showed no significant effects on polysaccharide production, in the range of C/N and copper concentrations evaluated. Taking into account that the best polysaccharide production was obtained with T. versicolor (96.09 mg/g solid substrate), a mathematical model was proposed for this fungus to describe the behavior of the fermentation system from the obtained data of all the resulting combinations to reach the highest polysaccharide production by the fungus. Conclusions: The mathematical model disclosed in this work enabled to describe the growth and development of a higher basidiomycete under solid-state fermentation conditions on lignocellulosic substrates as well as the production of value-added products like polysaccharides with medicinal properties.

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