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Jafari MS, Hejazi P. Poly(3-hydroxybutyrate) production using supplemented corn-processing byproducts through Cupriavidus necator via solid-state fermentation: Cultivation on flask and bioreactor scale. J Biotechnol 2024; 392:1-10. [PMID: 38897291 DOI: 10.1016/j.jbiotec.2024.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/04/2024] [Accepted: 06/14/2024] [Indexed: 06/21/2024]
Abstract
The widespread adoption of Poly(3-hydroxybutyrate) (PHB) encounters challenges due to its higher production costs compared to conventional plastics. To overcome this obstacle, this study investigates the use of low-cost raw materials and optimized production methods. Specifically, food processing byproducts such as corn germ and corn bran were utilized as solid substrates through solid-state fermentation, enriched with molasses and cheese whey. Employing the One Factor at a Time technique, we examined the effects of substrate composition, temperature, initial substrate moisture, molasses, and cheese whey on PHB production at the flask scale. Subsequently, experiments were conducted at the bioreactor scale to evaluate the influence of aeration. In flask-scale experiments, the highest PHB yield, reaching 4.1 (g/kg Initial Dry Weight Substrate) (IDWS) after 72 hours, was achieved using a substrate comprising a 1:1 mass ratio of corn germ to corn bran supplemented with 20 % (v/w) cheese whey. Furthermore, PHB production in a 0.5-L packed-bed bioreactor yielded a maximum of 8.4 (g/kg IDWS), indicating a more than 100 % increase in yield after 72 hours, with optimal results achieved at an aeration rate of 0.5 l/(kg IDWS. h).
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Affiliation(s)
- Mohammad Sadegh Jafari
- Biotechnology Research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Parisa Hejazi
- Biotechnology Research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran.
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2
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Guzmán-Armenteros TM, Villacís-Chiriboga J, Guerra LS, Ruales J. Electromagnetic fields effects on microbial growth in cocoa fermentation: A controlled experimental approach using established growth models. Heliyon 2024; 10:e24927. [PMID: 38317962 PMCID: PMC10839996 DOI: 10.1016/j.heliyon.2024.e24927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 02/07/2024] Open
Abstract
Understanding the effects of electromagnetic fields is crucial in the fermentation of cocoa beans, since through precise control of fermentation conditions the sensory and nutritional properties of cocoa beans could be improved. This study aimed to evaluate the effect of oscillating magnetic fields (OMF) on the kinetic growth of the core microbial communities of the Collections Castro Naranjal (CCN 51) cocoa bean. The data was obtained by three different models: Gompertz, Baranyi, and Logistic. The cocoa beans were subjected to different OMF strengths ranging from 0 mT to 80 mT for 1 h using the Helmholtz coil electromagnetic device. The viable microbial populations of lactic acid bacteria (LAB), acetic acid bacteria (AAB), and yeast (Y) were quantified using the colony-forming unit (CFU) counting method. The logistic model appropriately described the growth of LAB and Y under magnetic field exposure. Whereas the Baranyi model was suitable for describing AAB growth. The microbial populations in cocoa beans exposed to magnetic fields showed lower (maximum specific growth rate (μmax), values than untreated controls, with AAB exhibiting the highest average growth rate value at 5 mT and Y having the lowest average maximum growth rate value at 80 mT. The lower maximum specific growth rates and longer lag phases when exposed to magnetic fields compared to controls demonstrate the influence of magnetic fields on microbial growth kinetics.
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Affiliation(s)
- Tania María Guzmán-Armenteros
- Departamento de Ciencia de Alimentos y Biotecnología (DECAB), Escuela Politécnica Nacional (EPN), Quito, Ecuador
- Escuela Superior Politécnica del Litoral, Facultad de Ingeniería Mecánica y Ciencias de la Producción, carrera de Ingeniería en Alimentos, Guayaquil, Ecuador
| | - José Villacís-Chiriboga
- Departamento de Ciencia de Alimentos y Biotecnología (DECAB), Escuela Politécnica Nacional (EPN), Quito, Ecuador
| | - Luis Santiago Guerra
- Universidad Central del Ecuador (UCE), Facultad de Ciencias Médicas, Carrera de Medicina, Campus El Dorador, Quito, Ecuador
| | - Jenny Ruales
- Departamento de Ciencia de Alimentos y Biotecnología (DECAB), Escuela Politécnica Nacional (EPN), Quito, Ecuador
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3
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Sosa-Martínez JD, Montañez J, Contreras-Esquivel JC, Balagurusamy N, Gadi SK, Morales-Oyervides L. Agroindustrial and food processing residues valorization for solid-state fermentation processes: A case for optimizing the co-production of hydrolytic enzymes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119067. [PMID: 37778074 DOI: 10.1016/j.jenvman.2023.119067] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 09/04/2023] [Accepted: 09/13/2023] [Indexed: 10/03/2023]
Abstract
In the pursuit of sustainability, managing agro-industrial and food processing residues (AFR) efficiently is crucial. This study proposes a systematic approach to convert AFR into valuable products via solid-state fermentation (SSF). Using fungal enzyme production as a case study, this adaptable methodology suits any SSF bioprocess. Initially, AFR's physicochemical properties were evaluated to assess their feasible use as carbon sources and solid matrices for SSF. Then, five strains were screened for their capability to produce enzymes (Xylanase, X; pectinase, P; cellulase, C). Apple pomace (AP) and brewery spent grain (BSG) with Aspergillus sp. (strain G5) were selected. Subsequent steps involved a two-phase statistical approach, identifying critical factors and optimizing them. Process conditions were screened using a Plackett-Burman design, narrowing critical variables to three (BSG/AP, pH, humidity). Response Surface Methodology (Central Composite Design) further optimized these factors for co-synthesis of X, P, and C. The humidity had the most significant effect on the three responses. The optimum conditions depended on each enzyme and were further validated to maximize either X, P or C. The obtained extracts were used for pectin extraction from orange peels. The extract containing primarily xylanase (X = 582.39, P = 22.86, C = 26.10 U mL-1) showed major pectin yield recovery (12.33 ± 0.53%) and it was obtained using the optimal settings of BSG/AP (81/19), humidity (50.40%), and pH (4.58). The findings will enable adjusting process conditions to obtain enzymatic cocktails with a tailored composition for specific applications.
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Affiliation(s)
- Jazel Doménica Sosa-Martínez
- Facultad de Ciencias Químicas. Universidad Autonoma de Coahuila, Unidad Saltillo, Saltillo, Coahuila, 25280, Mexico
| | - Julio Montañez
- Facultad de Ciencias Químicas. Universidad Autonoma de Coahuila, Unidad Saltillo, Saltillo, Coahuila, 25280, Mexico
| | | | - Nagamani Balagurusamy
- Facultad de Ciencias Biológicas. Universidad Autonoma de Coahuila, Unidad Torreón, Torreón, Coahuila, 27000, Mexico
| | - Suresh Kumar Gadi
- Facultad de Ingeniería Mecánica y Eléctrica. Universidad Autonoma de Coahuila, Unidad Torreón, Torreón, Coahuila, 27276, Mexico
| | - Lourdes Morales-Oyervides
- Facultad de Ciencias Químicas. Universidad Autonoma de Coahuila, Unidad Saltillo, Saltillo, Coahuila, 25280, Mexico.
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4
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Coronado-Contreras A, Ruelas-Chacón X, Reyes-Acosta YK, Dávila-Medina MD, Ascacio-Valdés JA, Sepúlveda L. Valorization of Prickly Pear Peel Residues ( Opuntia ficus-indica) Using Solid-State Fermentation. Foods 2023; 12:4213. [PMID: 38231671 DOI: 10.3390/foods12234213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/03/2023] [Accepted: 11/16/2023] [Indexed: 01/19/2024] Open
Abstract
Prickly pear peel (Opuntia ficus-indica) residues can be used as a substrate in solid-state fermentation to obtain bioactive compounds. The kinetic growth of some Aspergillus strains was evaluated. A Box-Hunter and Hunter design to evaluate the independent factors was used. These factors were temperature (°C), inoculum (spores/g), humidity (%), pH, NaNO3 (g/L), MgSO4 (g/L), KCl (g/L), and KH2PO4 (g/L). The response factors were the amount of hydrolyzable and condensed tannins. The antioxidant and antimicrobial activity of fermentation extracts was evaluated. Aspergillus niger strains GH1 and HT3 were the best for accumulating tannins. The humidity, inoculum, and temperature affect the release of hydrolyzable and condensed tannins. Treatment 13 (low values for temperature, inoculum, NaNO3, MgSO4; and high values for humidity, pH, KCl, KH2PO4) resulted in 32.9 mg/g of condensed tannins being obtained; while treatment 16 (high values for all the factors evaluated) resulted in 3.5 mg/g of hydrolyzable tannins being obtained. In addition, the fermented extracts showed higher antioxidant activity compared to the unfermented extracts. Treatments 13 and 16 showed low inhibition of E. coli, Alternaria sp., and Botrytis spp. The solid-state fermentation process involving prickly pear peel residues favors the accumulation of condensed and hydrolyzable tannins, with antioxidant and antifungal activity.
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Affiliation(s)
| | - Xochitl Ruelas-Chacón
- Food Science and Technology Department, Autonomous Agrarian University Antonio Narro, Saltillo 25315, Coahuila, Mexico
| | - Yadira K Reyes-Acosta
- School of Chemistry, Autonomous University of Coahuila, Saltillo 25280, Coahuila, Mexico
| | | | - Juan A Ascacio-Valdés
- School of Chemistry, Autonomous University of Coahuila, Saltillo 25280, Coahuila, Mexico
| | - Leonardo Sepúlveda
- School of Chemistry, Autonomous University of Coahuila, Saltillo 25280, Coahuila, Mexico
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Ge F, Chen G, Qian M, Xu C, Liu J, Cao J, Li X, Hu D, Xu Y, Xin Y, Wang D, Zhou J, Shi H, Tan Z. Artificial Intelligence Aided Lipase Production and Engineering for Enzymatic Performance Improvement. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14911-14930. [PMID: 37800676 DOI: 10.1021/acs.jafc.3c05029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
With the development of artificial intelligence (AI), tailoring methods for enzyme engineering have been widely expanded. Additional protocols based on optimized network models have been used to predict and optimize lipase production as well as properties, namely, catalytic activity, stability, and substrate specificity. Here, different network models and algorithms for the prediction and reforming of lipase, focusing on its modification methods and cases based on AI, are reviewed in terms of both their advantages and disadvantages. Different neural networks coupled with various algorithms are usually applied to predict the maximum yield of lipase by optimizing the external cultivations for lipase production, while one part is used to predict the molecule variations affecting the properties of lipase. However, few studies have directly utilized AI to engineer lipase by affecting the structure of the enzyme, and a set of research gaps needs to be explored. Additionally, future perspectives of AI application in enzymes, including lipase engineering, are deduced to help the redesign of enzymes and the reform of new functional biocatalysts. This review provides a new horizon for developing effective and innovative AI tools for lipase production and engineering and facilitating lipase applications in the food industry and biomass conversion.
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Affiliation(s)
- Feiyin Ge
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Gang Chen
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Minjing Qian
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Cheng Xu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Jiao Liu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Jiaqi Cao
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Xinchao Li
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Die Hu
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, People's Republic of China
| | - Yangsen Xu
- Dongtai Hanfangyuan Biotechnology Co. Ltd., Yancheng 224241, People's Republic of China
| | - Ya Xin
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Dianlong Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Jia Zhou
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Hao Shi
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
| | - Zhongbiao Tan
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, People's Republic of China
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6
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The Potential of Bacilli-Derived Biosurfactants as an Additive for Biocontrol against Alternaria alternata Plant Pathogenic Fungi. Microorganisms 2023; 11:microorganisms11030707. [PMID: 36985279 PMCID: PMC10056989 DOI: 10.3390/microorganisms11030707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
Fungal diseases caused by Alternaria alternata constitute a significant threat to the production and quality of a wide range of crops, including beans, fruits, vegetables, and grains. Traditional methods for controlling these diseases involve synthetic chemical pesticides, which can negatively impact the environment and human health. Biosurfactants are natural, biodegradable secondary metabolites of microorganisms that have also been shown to possibly have antifungal activity against plant pathogenic fungi, including A. alternata being sustainable alternatives to synthetic pesticides. In this study, we investigated the potential of biosurfactants of three bacilli (Bacillus licheniformis DSM13, Bacillus subtilis DSM10, and Geobacillus stearothermophilus DSM2313) as a biocontrol agent against A. alternata on beans as a model organism. For this fermentation, we describe using an in-line biomass sensor monitoring both permittivity and conductivity, which are expected to correlate with cell concentration and products, respectively. After the fermentation of biosurfactants, we first characterised the properties of the biosurfactant, including their product yield, surface tension decrement capability, and emulsification index. Then, we evaluated the antifungal properties of the crude biosurfactant extracts against A. alternata, both in vitro and in vivo, by analysing various plant growth and health parameters. Our results showed that bacterial biosurfactants effectively inhibited the growth and reproduction of A. alternata in vitro and in vivo. B. licheniformis manufactured the highest amount of biosurfactant (1.37 g/L) and demonstrated the fastest growth rate, while G. stearothermophilus produced the least amount (1.28 g/L). The correlation study showed a strong positive relationship between viable cell density VCD and OD600, as well as a similarly good positive relationship between conductivity and pH. The poisoned food approach in vitro demonstrated that all three strains suppressed mycelial development by 70–80% when applied with the highest tested dosage of 30%. Regarding in vivo investigations, B. subtilis post-infection treatment decreased the disease severity to 30%, whereas B. licheniformis and G. stearothermophilus post-infection treatment reduced disease severity by 25% and 5%, respectively. The study also revealed that the plant’s total height, root length, and stem length were unaffected by the treatment or the infection.
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Zhang C, Ali Khan RA, Wei H, Wang R, Hou J, Liu T. Rapid and mass production of biopesticide Trichoderma Brev T069 from cassava peels using newly established solid-state fermentation bioreactor system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 313:114981. [PMID: 35395529 DOI: 10.1016/j.jenvman.2022.114981] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/21/2022] [Accepted: 03/26/2022] [Indexed: 06/14/2023]
Abstract
Converting agricultural waste into value-added biopesticides to replace chemical pesticides for plant protection is a good alternative for environmental sustainability and resource recycling. In this study, five tropical wastes (cassava peels, banana pseudostem, coconut shell, sugarcane bagasse, and pineapple peels) were screened as substrates for the rapid production of biopesticide Trichoderma Brev T069. Five single tests and a Box-Behnken design (BBD) with response surface methodology were used to optimize the culture conditions to improve the spore yield. The results showed that cassava peel was the optimal solid fermentation substrate, and the optimization enabled a spore yield of 9.31 × 109 spores/g at 3rd day, which was equal to 93.19% of spore yield obtained at 5th day (9.99 × 109 spores/g). A newly packed-bed bioreactor with agitation and ventilation system was developed and used to expand the production that 250 kg of biopesticide (2.89 × 109 spores/g) could be available on the 3rd day. A pot experiment indicated that the biopesticide T. Brev T069 obtained under this production system, when applied at 1 × 107 spores/g of soil had a 64.65% biocontrol efficiency on banana fusarium wilt. This study provides a practical solution for turning a tropical waste into an effective biopesticide which can prevent banana wilt disease, thereby helping to reduce disease management cost and overcome environmental hazards caused by synthetic pesticides.
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Affiliation(s)
- Cheng Zhang
- Key Laboratory of Green Prevention and Control of Tropical Diseases and Pests (College of Plant Protection, Hainan University), Ministry of Education, Haikou, Hainan, 570228, PR China
| | - Raja Asad Ali Khan
- Key Laboratory of Green Prevention and Control of Tropical Diseases and Pests (College of Plant Protection, Hainan University), Ministry of Education, Haikou, Hainan, 570228, PR China; Department of Plant Pathology, The University of Agriculture, Peshawar, Pakistan
| | - HongYan Wei
- Key Laboratory of Green Prevention and Control of Tropical Diseases and Pests (College of Plant Protection, Hainan University), Ministry of Education, Haikou, Hainan, 570228, PR China
| | - Rui Wang
- Key Laboratory of Green Prevention and Control of Tropical Diseases and Pests (College of Plant Protection, Hainan University), Ministry of Education, Haikou, Hainan, 570228, PR China; Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan (Hainan University), Haikou, Hainan, 570228, PR China
| | - JuMei Hou
- Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan (Hainan University), Haikou, Hainan, 570228, PR China
| | - Tong Liu
- Key Laboratory of Green Prevention and Control of Tropical Diseases and Pests (College of Plant Protection, Hainan University), Ministry of Education, Haikou, Hainan, 570228, PR China; Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan (Hainan University), Haikou, Hainan, 570228, PR China.
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8
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A Temporal Evolution Perspective of Lipase Production by Yarrowia lipolytica in Solid-State Fermentation. Processes (Basel) 2022. [DOI: 10.3390/pr10020381] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Lipases are enzymes that, in aqueous or non-aqueous media, act on water-insoluble substrates, mainly catalyzing reactions on carboxyl ester bonds, such as hydrolysis, aminolysis, and (trans)esterification. Yarrowia lipolytica is a non-conventional yeast known for secreting lipases and other bioproducts; therefore, it is of great interest in various industrial fields. The production of lipases can be carried on solid-state fermentation (SSF) that utilizes solid substrates in the absence, or near absence, of free water and presents minimal problems with microbial contamination due to the low water contents in the medium. Moreover, SSF offers high volumetric productivity, targets concentrated compounds, high substrate concentration tolerance, and has less wastewater generation. In this sense, the present work provides a temporal evolution perspective regarding the main aspects of lipase production in SSF by Y. lipolytica, focusing on the most relevant aspects and presenting the potential of such an approach.
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Villacrés E, Rosell CM. Kinetics of solid-state fermentation of lupin with Rhizophus oligosporus based on nitrogen compounds balance. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Liu Y, Zhao S, Guan F, Yuan Y. Establishment of a Model for Evaluating Shelf Life of Pseudosciaena crocea in Simulated Logistics and Storage. J Food Prot 2021; 84:1188-1193. [PMID: 33635942 DOI: 10.4315/jfp-20-495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 02/22/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT Cold chain logistics is a common way of fresh-keeping transportation at present, but in the actual transportation and storage process, temperature control is often not accurate, which leads to shortened shelf life. We evaluated the changes in the quality of yellow croaker (Pseudosciaena crocea) at different temperatures during transportation. Specimens of P. crocea were immersed in slurry ice for 20 min and stored at 22, 4, or -1°C for 4 days. During this period, the development of rancidity of P. crocea was measured by sensory (odor, skin, color, and flesh appearance) and biochemical (total number of colonies, total volatile basic nitrogen, and K value) analyses. A combination of sensory and biochemical parameters and the Arrhenius equation were used to predict the shelf life of P. crocea during storage. After verification under different storage temperatures, the relative error between the predicted and the measured values was found to be within 15%. The present work provides theoretical guidance for the quality control of P. crocea during transportation and storage. HIGHLIGHTS
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Affiliation(s)
- Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, People's Republic of China
| | - Simin Zhao
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People's Republic of China
| | - Feng Guan
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People's Republic of China
| | - Yongjun Yuan
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People's Republic of China
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11
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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. [DOI: 10.3390/f11101055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
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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12
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Horikiri S, Furuta M, Tsuchido T. A Modified Double Subculture Method for the Two-Mode Injuries Evaluation in a Stressed Fungal Spore Population. Biocontrol Sci 2020; 25:131-138. [PMID: 32938842 DOI: 10.4265/bio.25.131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
In order to evaluate injury of a stressed fungal spore population, a modification of formerly presented double subculture method, which consists of both the conventional plate count method and the growth delay analysis method, was proposed. In this method, an apparent logarithmic growth kinetics was assumed and the previous kinetic model was improved to be able to estimate injured subpopulations in two different modes containing early occurring growth-independent and late occurring growth-dependent injuries, called the λ and μ injuries, respectively. Based on the kinetic theory developed here, this novel method was applied to heat-treated conidia of Cladosporium cladosporioides and these two mode injuries were evaluated.
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Affiliation(s)
- Shigetoshi Horikiri
- Department of Quantum and Radiation Engineering, Graduate School of Engineering, Osaka Prefecture University.,Panasonic Ecology Systems Co., Ltd
| | - Masakazu Furuta
- Department of Quantum and Radiation Engineering, Graduate School of Engineering, Osaka Prefecture University.,Research Center of Microorganism Control, Organization for Research Promotion
| | - Tetsuaki Tsuchido
- Research Center of Microorganism Control, Organization for Research Promotion.,TriBioX Laboratories, Ltd
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13
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Lashermes G, Bleuze L, Recous S, Voinot R, Lafolie F, Chabbert B. Multiscale modeling of microbial degradation of outer tissues of fiber-crop stems during the dew retting process. BIORESOURCE TECHNOLOGY 2020; 311:123558. [PMID: 32485603 DOI: 10.1016/j.biortech.2020.123558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Dew retting of fiber crops, such as hemp or flax, in the field after harvest promotes the microbial biodegradation of the tissues surrounding cellulosic fibers, which helps preserve the quality of fibers during their extraction and valorization for industry. This bioprocess is currently the bottleneck for plant fiber valorization because it is empirically managed and its controlling factors have not been properly quantified. A novel multiscale model representing tissue and polymer biodegradation was developed to simulate microbial growth on the stem during retting. The model was evaluated against experimental hemp retting data. It consistently simulated the mass loss of eight plant polymers belonging to two tissues of the stem outer layer, i.e., parenchyma and fiber bundles. Microbial growth was modeled by Monod equations and modulated by the functions of temperature and moisture. This work provides a tool for gaining more insights into microorganism behavior during retting under local climate conditions.
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Affiliation(s)
| | - Laurent Bleuze
- Université de Reims Champagne Ardenne, INRAE, FARE, 51100 Reims, France
| | - Sylvie Recous
- Université de Reims Champagne Ardenne, INRAE, FARE, 51100 Reims, France
| | - Richard Voinot
- Université de Reims Champagne Ardenne, INRAE, FARE, 51100 Reims, France
| | - François Lafolie
- Université d'Avignon et des pays de Vaucluse, INRAE, EMMAH, 84000 Avignon, France
| | - Brigitte Chabbert
- Université de Reims Champagne Ardenne, INRAE, FARE, 51100 Reims, France
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dos Santos MC, da Silva WS, da Silva BF, Cerri MO, Ribeiro MPDA, Bicas JL. Comparison of Two Methods for Counting Molds in Fermentations Using the Production of Bikaverin by Fusarium oxysporum CCT7620 as a Model. Curr Microbiol 2020; 77:3671-3679. [DOI: 10.1007/s00284-020-02166-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 08/11/2020] [Indexed: 12/25/2022]
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15
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Dos Santos Gomes AC, Casciatori FP, Gomes E, da Costa Carreira Nunes C, Moretti MMS, Thoméo JC. Growth kinetics of Myceliophthora thermophila M.7·7 in solid-state cultivation. J Appl Microbiol 2020; 130:90-99. [PMID: 32640074 DOI: 10.1111/jam.14774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/22/2020] [Accepted: 07/01/2020] [Indexed: 01/19/2023]
Abstract
AIMS This work aimed to estimate the growth of Myceliophthora thermophila M.7·7 in solid-state cultivation (SSC) through quantification of N-acetyl-d-glucosamine (NAG) and enzyme activity. METHODS AND RESULTS The fungus was cultivated in sugarcane bagasse and wheat bran. A consistent statistical analysis was done to assess the reliability of experimental data. Logistic model equation was fitted to experimental data and growth parameters were estimated. The results showed strong influence of the sample size on NAG and a minimum recommended sample size was identified. Scanning electron microscopy (SEM) was used to identify the strategy of substrate colonization. Wheat bran was attacked firstly, while sugarcane bagasse was consumed after wheat bran depletion. The biomass growth was poorly estimated by secretion kinetics of α-amylase, endoglucanase, protease and xylanase, but enzyme kinetics were important for understanding substrate colonization. CONCLUSIONS In conclusion, the NAG concentration was strongly affected by the sample size and sampling procedure. The strategy of fungal colonization on the substrates was well characterized through SEM analysis. The colonization strategy has direct influence on the kinetic parameters of the logistic model. Myceliophthora thermophila has a well-defined dynamic of enzyme secretion to degrade the substrate, although the kinetics of enzyme secretion has shown not adequate to characterize the kinetics of fungal growth. SIGNIFICANCE AND IMPACT OF THE STUDY The paper provides reliable growth kinetic parameters in the SSC of the cellulase producer fungus M. thermophila M.7·7, as well as a robust analysis on three indirect methods (NAG, enzymes and SEM) for estimation of fungal development.
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Affiliation(s)
- A C Dos Santos Gomes
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista (UNESP), Rua Cristóvão Colombo 2265, São José do Rio Preto São Paulo, Brazil
| | - F P Casciatori
- Chemical Engineering Department, Graduate Program of Chemical Engineering, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - E Gomes
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista (UNESP), Rua Cristóvão Colombo 2265, São José do Rio Preto São Paulo, Brazil
| | - C da Costa Carreira Nunes
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista (UNESP), Rua Cristóvão Colombo 2265, São José do Rio Preto São Paulo, Brazil
| | - M M S Moretti
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista (UNESP), Rua Cristóvão Colombo 2265, São José do Rio Preto São Paulo, Brazil
| | - J C Thoméo
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista (UNESP), Rua Cristóvão Colombo 2265, São José do Rio Preto São Paulo, Brazil
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Valanciene E, Jonuskiene I, Syrpas M, Augustiniene E, Matulis P, Simonavicius A, Malys N. Advances and Prospects of Phenolic Acids Production, Biorefinery and Analysis. Biomolecules 2020; 10:E874. [PMID: 32517243 PMCID: PMC7356249 DOI: 10.3390/biom10060874] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/28/2020] [Accepted: 06/03/2020] [Indexed: 12/20/2022] Open
Abstract
Biotechnological production of phenolic acids is attracting increased interest due to their superior antioxidant activity, as well as other antimicrobial, dietary, and health benefits. As secondary metabolites, primarily found in plants and fungi, they are effective free radical scavengers due to the phenolic group available in their structure. Therefore, phenolic acids are widely utilised by pharmaceutical, food, cosmetic, and chemical industries. A demand for phenolic acids is mostly satisfied by utilising chemically synthesised compounds, with only a low quantity obtained from natural sources. As an alternative to chemical synthesis, environmentally friendly bio-based technologies are necessary for development in large-scale production. One of the most promising sustainable technologies is the utilisation of microbial cell factories for biosynthesis of phenolic acids. In this paper, we perform a systematic comparison of the best known natural sources of phenolic acids. The advances and prospects in the development of microbial cell factories for biosynthesis of these bioactive compounds are discussed in more detail. A special consideration is given to the modern production methods and analytics of phenolic acids.
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Affiliation(s)
| | | | | | | | | | | | - Naglis Malys
- Bioprocess Research Centre, Faculty of Chemical Technology, Kaunas University of Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania; (E.V.); (I.J.); (M.S.); (E.A.); (P.M.); (A.S.)
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17
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Critical review on the numerical modeling of in-situ microbial enhanced oil recovery processes. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107294] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Investigating a non-destructive alternative for a preliminary evaluation of fungal growth in solid state fermentations. J Microbiol Methods 2019; 160:60-67. [PMID: 30905501 DOI: 10.1016/j.mimet.2019.03.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/20/2019] [Accepted: 03/20/2019] [Indexed: 10/27/2022]
Abstract
Solid state fermentation (SSF) is an ancient technique which keeps attracting the attention of the food and biotechnology industries; however, a direct quantification of microbial biomass is still a fundamental challenge in this type of processes. Typically, growth is measured using indirect and destructive methods which do not allow a continuous evaluation of the evolution of microbial biomass within a single system. This article presents a non-destructive, quick and simple technique, based on digital imaging analysis (DIA) for the evaluation of growth in SSF laboratory experiments. DIA uses computational analysis of images from a SSF to measure areas and colour changes on a surface. The method can then be used to monitor microbial growth by assigning quantitative values for the growth of filamentous fungi. Firstly, studies on agar plates are used for the description of the method and to illustrate how it can be used to monitor fungal colony areas and densities. Following that, agro-industrial residues are used to demonstrate the application of the technique. DIA proved to be a practical and inexpensive tool to measure colony areas and densities. Furthermore, it is a non-destructive and non-intrusive method, which means that the evaluation of growth can be achieved within a single system.
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20
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Dry weight model, capacitance and metabolic data as indicators of fungal biomass growth in solid state fermentation. FOOD AND BIOPRODUCTS PROCESSING 2019. [DOI: 10.1016/j.fbp.2018.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Abdul Manan M, Webb C. Control strategies with variable air arrangements, forcefully aerated in single circular tray solid state bioreactors with modified Gompertz model and analysis of a distributed parameter gas balance. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2018.1530950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Musaalbakri Abdul Manan
- Enzyme and Fermentation Technology Programme, Biotechnology and Nanotechnology Research Centre Malaysian Agricultural Research and Development Institute (MARDI), Persiaran MARDI – UPM, Serdang, Malaysia
- Faculty of Engineering and Physical Sciences, Satake Centre for Grain Process Engineering School of Chemical Engineering and Analytical Science, University of Manchester, Manchester, UK
| | - Colin Webb
- Faculty of Engineering and Physical Sciences, Satake Centre for Grain Process Engineering School of Chemical Engineering and Analytical Science, University of Manchester, Manchester, UK
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22
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Growth kinetics and modelling of S. Cerevisiae (NCYC 431) during de-lignified waste banana fermentation and chemical characterization. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2018.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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A new kinetic model for growth based on simultaneous substrate and biomass limitation in solid-state fermentation using agar spheres as the model substrate. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2018.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Mohamad Ikubar MR, Abdul Manan M, Md Salleh M, Yahya A. Solid-state fermentation of oil palm frond petiole for lignin peroxidase and xylanase-rich cocktail production. 3 Biotech 2018; 8:259. [PMID: 29765817 DOI: 10.1007/s13205-018-1268-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 04/28/2018] [Indexed: 11/30/2022] Open
Abstract
In current practice, oil palm frond leaflets and stems are re-used for soil nutrient recycling, while the petioles are typically burned. Frond petioles have high commercialization value, attributed to high lignocellulose fiber content and abundant of juice containing free reducing sugars. Pressed petiole fiber is the subject of interest in this study for the production of lignocellulolytic enzyme. The initial characterization showed the combination of 0.125 mm frond particle size and 60% moisture content provided a surface area of 42.3 m2/g, porosity of 12.8%, and density of 1.2 g/cm3, which facilitated fungal solid-state fermentation. Among the several species of Aspergillus and Trichoderma tested, Aspergillus awamori MMS4 yielded the highest xylanase (109 IU/g) and cellulase (12 IU/g), while Trichoderma virens UKM1 yielded the highest lignin peroxidase (222 IU/g). Crude enzyme cocktail also contained various sugar residues, mainly glucose and xylose (0.1-0.4 g/L), from the hydrolysis of cellulose and hemicellulose. FT-IR analysis of the fermented petioles observed reduction in cellulose crystallinity (I900/1098), cellulose-lignin (I900/1511), and lignin-hemicellulose (I1511/1738) linkages. The study demonstrated successful bioconversion of chemically untreated frond petioles into lignin peroxidase and xylanase-rich enzyme cocktail under SSF condition.
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Affiliation(s)
- Mohamed Roslan Mohamad Ikubar
- 1Biorefinery Technology Laboratory, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Musaalbakri Abdul Manan
- Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute (MARDI), 43400 Serdang, Selangor Malaysia
| | - Madihah Md Salleh
- 1Biorefinery Technology Laboratory, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Adibah Yahya
- 1Biorefinery Technology Laboratory, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
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Mazaheri D, Shojaosadati SA, Zamir SM, Mousavi SM. Mathematical modeling of ethanol production in solid-state fermentation based on solid medium' dry weight variation. Prep Biochem Biotechnol 2018; 48:372-377. [PMID: 29509074 DOI: 10.1080/10826068.2018.1446156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
In this work, mathematical modeling of ethanol production in solid-state fermentation (SSF) has been done based on the variation in the dry weight of solid medium. This method was previously used for mathematical modeling of enzyme production; however, the model should be modified to predict the production of a volatile compound like ethanol. The experimental results of bioethanol production from the mixture of carob pods and wheat bran by Zymomonas mobilis in SSF were used for the model validation. Exponential and logistic kinetic models were used for modeling the growth of microorganism. In both cases, the model predictions matched well with the experimental results during the exponential growth phase, indicating the good ability of solid medium weight variation method for modeling a volatile product formation in solid-state fermentation. In addition, using logistic model, better predictions were obtained.
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Affiliation(s)
- Davood Mazaheri
- a Faculty of Engineering , Mahallat Institute of Higher Education , Mahallat , Iran
| | - Seyed Abbas Shojaosadati
- b Biotechnology Group, Faculty of Chemical Engineering , Tarbiat Modares University , Tehran , Iran
| | - Seyed Morteza Zamir
- b Biotechnology Group, Faculty of Chemical Engineering , Tarbiat Modares University , Tehran , Iran
| | - Seyyed Mohammad Mousavi
- b Biotechnology Group, Faculty of Chemical Engineering , Tarbiat Modares University , Tehran , Iran
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26
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Abdul Manan M, Webb C. Estimating fungal growth in submerged fermentation in the presence of solid particles based on colour development. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2018.1440974] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Musaalbakri Abdul Manan
- Enzyme and Fermentation Technology Programme, Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute, Serdang, Selangor, Malaysia
- Satake Centre for Grain Process Engineering, School of Chemical Engineering and Analytical Science, Faculty of Engineering and Physical Sciences, University of Manchester, Manchester, United Kingdom
| | - Colin Webb
- Satake Centre for Grain Process Engineering, School of Chemical Engineering and Analytical Science, Faculty of Engineering and Physical Sciences, University of Manchester, Manchester, United Kingdom
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27
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Cornet I, Wittner N, Tofani G, Tavernier S. FTIR as an easy and fast analytical approach to follow up microbial growth during fungal pretreatment of poplar wood with Phanerochaete chrysosporium. J Microbiol Methods 2018; 145:82-86. [DOI: 10.1016/j.mimet.2018.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 01/11/2018] [Accepted: 01/11/2018] [Indexed: 10/18/2022]
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28
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Pseudomonas sp. biofilm development on fresh-cut food equipment surfaces – a growth curve – fitting approach to building a comprehensive tool for studying surface contamination dynamics. FOOD AND BIOPRODUCTS PROCESSING 2018. [DOI: 10.1016/j.fbp.2017.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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29
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Zhang Y, Wang L, Chen H. Correlations of medium physical properties and process performance in solid-state fermentation. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.02.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Reyes I, Cruz-Sosa F, Hernandez-Jaimes C, Vernon-Carter EJ, Alvarez-Ramirez J. Effects of solid-state fermentation (Aspergillus oryzae var. oryzae) on the physicochemical properties of corn starch. STARCH-STARKE 2017. [DOI: 10.1002/star.201600369] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Isabel Reyes
- Departamento de Biotecnología; Universidad Autónoma Metropolitana-Iztapalapa; Iztapalapa Mexico
| | - Francisco Cruz-Sosa
- Departamento de Biotecnología; Universidad Autónoma Metropolitana-Iztapalapa; Iztapalapa Mexico
| | - Carmen Hernandez-Jaimes
- Facultad de Ciencias; Universidad Autónoma del Estado de México; Campus El Cerrillo; Toluca Mexico
| | - E. Jaime Vernon-Carter
- Departamento de Ingeniería de Procesos e Hidráulica; Universidad Autónoma Metropolitana-Iztapalapa; Iztapalapa Mexico
| | - Jose Alvarez-Ramirez
- Departamento de Ingeniería de Procesos e Hidráulica; Universidad Autónoma Metropolitana-Iztapalapa; Iztapalapa Mexico
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31
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Ashok A, Doriya K, Rao DRM, Kumar DS. Design of solid state bioreactor for industrial applications: An overview to conventional bioreactors. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2016.10.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Derivation of an Upscaled Model for Mass Transfer and Reaction for Non-Food Starch Conversion to Bioethanol. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2016. [DOI: 10.1515/ijcre-2016-0004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this paper, we derive mathematical models for mass transfer and reaction taking place in first-generation bioreactors to convert non-food starch into bioethanol. Given the hierarchical nature of the system, we identified three scale levels ranging from inside bagasse fibers (the pore scale) where the reaction occurs, up to the bioreactor itself (macroscopic scale) where the various products obtained from this reaction are monitored. We derive a macroscopic model at the reactor scale by systematically upscaling the relevant information from the pore scale using the method of volume averaging. A salient feature of the model is that the effective medium coefficients involved are predicted by solving ancillary closure problems in representative unit cells of the different levels of scale. The predictions of the model in terms of CO2 production as well as cellular growth were validated with a close agreement with available experimental data. This work enhances our understanding of the relevance of transport phenomena taking place at the different scales in a bioreactor and may become an aid in design and operation applications of bioethanol production systems.
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Effect of passive transport of water through plasma membrane in production of extracellular enzyme. Bioprocess Biosyst Eng 2016; 40:297-307. [PMID: 27778113 DOI: 10.1007/s00449-016-1697-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 10/18/2016] [Indexed: 10/20/2022]
Abstract
In this article, availability and control of water in solid-state fermentation (SSF) were investigated. Based on passive transport of water through plasma membranes, a new model was proposed for calculation and control of water activities in the mixture of solids. The validity of theoretical model and accuracy of the proposed model were proved by experimental data. This model was used for production of pectinases via mixed-SSF with the aid of a rotary drum bioreactor. It was found that in case of extracellular enzyme production, the new model is in good agreement with experimental data for the control of water activities in the mixed-SSF. Exact control of water activity in SFF, the production of endo- and exo-pectinases was relatively enhanced. Based on theoretical view point, the prominence of this new model in control of water activity was also proved.
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Nag M, Shimaoka T, Komiya T. Impact of intermittent aerations on leachate quality and greenhouse gas reduction in the aerobic-anaerobic landfill method. WASTE MANAGEMENT (NEW YORK, N.Y.) 2016; 55:71-82. [PMID: 26514311 DOI: 10.1016/j.wasman.2015.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 08/31/2015] [Accepted: 10/16/2015] [Indexed: 06/05/2023]
Abstract
The aerobic-anaerobic landfill method (AALM) is a novel approach in solid waste management that could shorten the landfill post-closure period and minimize the environmental loads. In this study, the aerobic-anaerobic landfill method was evaluated by using intermittent aeration. In addition, the nitrification-denitrification process was assessed as a means of reducing the emission of greenhouse gases (GHGs) and improving the leachate quality during the degradation of the organic solid waste. The leachate quality and the gas composition in each of the reactors were measured during the experimental period (408days). The aeration process entailed the injection of air into plexiglass cylinders (200cm height×10 cm diameter), filled with fresh organic solid waste collected from a composting plant. Different aeration routines were applied, namely, continuous aeration (aerobic reactor A), aeration for three days/week (aerobic-anaerobic reactor B), aeration for 6h/day (aerobic-anaerobic reactor C), and no aeration (non-aerated reactor D). It was found that aerobic reactor A produced the best results in terms of reduction of GHGs and improvement of the leachate quality. The aerobic-anaerobic reactor C was found to be more effective than reactor B in respect of both the emission of GHGs and the leachate quality; moreover, compared with aerobic reactor A, energy costs were reduced by operating this reactor. The transition period phenomenon was investigated during an intensive seven-day experiment conducted on the discharged leachate obtained from aerobic-anaerobic reactors B and C. The experiment concerned the differences in the composition of the gas during the aeration and the non-aeration periods. It was found that the transition period between the aeration and non-aeration cycles, which followed the simultaneous nitrification-denitrification had a considerable effect on the leachate quality of both the reactors. The results indicated that AALM has the potential to reduce leachate pollutants and the emission of GHGs. Furthermore, the occurrence of simultaneous nitrification-denitrification presents the prospect that intermittent aeration could reduce landfill aftercare and energy costs.
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Affiliation(s)
- Mitali Nag
- Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Takayuki Shimaoka
- Department of Urban and Environmental Engineering, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Teppei Komiya
- Department of Urban and Environmental Engineering, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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da Silveira CL, Mazutti MA, Salau NPG. Identifyability measures to select the parameters to be estimated in a solid-state fermentation distributed parameter model. Biotechnol Prog 2016; 32:905-17. [DOI: 10.1002/btpr.2297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 02/25/2016] [Indexed: 11/09/2022]
Affiliation(s)
| | - Marcio A. Mazutti
- Chemical Engineering Dept.; Universidade Federal De Santa Maria; Santa Maria Brazil
| | - Nina P. G. Salau
- Chemical Engineering Dept.; Universidade Federal De Santa Maria; Santa Maria Brazil
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Saithi S, Tongta A. Phytase Production of Aspergillus Niger on Soybean Meal by Solid-State Fermentation Using a Rotating Drum Bioreactor. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.aaspro.2016.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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38
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A sigmoidal model for biosorption of heavy metal cations from aqueous media. Math Biosci 2015; 265:40-6. [DOI: 10.1016/j.mbs.2015.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 04/10/2015] [Accepted: 04/15/2015] [Indexed: 11/23/2022]
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Pekmezovic M, Rajkovic K, Barac A, Senerović L, Arsic Arsenijevic V. Development of kinetic model for testing antifungal effect of Thymus vulgaris L. and Cinnamomum cassia L. essential oils on Aspergillus flavus spores and application for optimization of synergistic effect. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.03.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sugai-Guérios MH, Balmant W, Furigo A, Krieger N, Mitchell DA. Modeling the Growth of Filamentous Fungi at the Particle Scale in Solid-State Fermentation Systems. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2015; 149:171-221. [PMID: 25604164 DOI: 10.1007/10_2014_299] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Solid-state fermentation (SSF) with filamentous fungi is a promising technique for the production of a range of biotechnological products and has the potential to play an important role in future biorefineries. The performance of such processes is intimately linked with the mycelial mode of growth of these fungi: Not only is the production of extracellular enzymes related to morphological characteristics, but also the mycelium can affect bed properties and, consequently, the efficiency of heat and mass transfer within the bed. A mathematical model that describes the development of the fungal mycelium in SSF systems at the particle scale would be a useful tool for investigating these phenomena, but, as yet, a sufficiently complete model has not been proposed. This review presents the biological and mass transfer phenomena that should be included in such a model and then evaluates how these phenomena have been modeled previously in the SSF and related literature. We conclude that a discrete lattice-based model that uses differential equations to describe the mass balances of the components within the system would be most appropriate and that mathematical expressions for describing the individual phenomena are available in the literature. It remains for these phenomena to be integrated into a complete model describing the development of fungal mycelia in SSF systems.
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Affiliation(s)
- Maura Harumi Sugai-Guérios
- Departamento de Engenharia Química e Engenharia de Alimentos, Universidade Federal de Santa Catarina, Centro Tecnológico, Cx.P. 476, Florianópolis, 88040-900, Santa Catarina, Brazil
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Performance of a fixed-bed solid-state fermentation bioreactor with forced aeration for the production of hydrolases by Aspergillus awamori. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2014.10.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Interactions between fungal growth, substrate utilization, and enzyme production during solid substrate cultivation of Phanerochaete chrysosporium on cotton stalks. Bioprocess Biosyst Eng 2014; 37:2463-73. [PMID: 24908113 DOI: 10.1007/s00449-014-1224-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 05/13/2014] [Indexed: 10/25/2022]
Abstract
Fungal pretreatment, using lignin-degrading microorganisms to improve lignocellulosic feedstocks with minimal energy input, is a potential alternative to physiochemical pretreatment methods. Identifying the kinetics for fungal pretreatment during solid substrate cultivation is needed to help establish the processing conditions for effective scale up of this technology. In this study, a set of mathematical models were proposed for describing the interactions between holocellulose consumption, lignin degradation, cellulase, ligninolytic enzyme, and the growth of Phanerochaete chrysosporium during a 14 day fungal pretreatment process. Model parameters were estimated and validated by the System Biology Toolbox in MatLab. Developed models provided sufficiently accurate predictions for fungal growth (R (2) = 0.97), holocellulose consumption (R (2) = 0.97), lignin degradation (R (2) = 0.93) and ligninolytic enzyme production (R (2) = 0.92), and fair prediction for cellulase production (R (2) = 0.61). The models provide valuable information for understanding the interactive mechanisms in biological systems as well as for fungal pretreatment process scale up and improvement.
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Guimerà X, Moya A, Dorado AD, Villa R, Gabriel D, Gabriel G, Gamisans X. Biofilm dynamics characterization using a novel DO-MEA sensor: mass transport and biokinetics. Appl Microbiol Biotechnol 2014; 99:55-66. [DOI: 10.1007/s00253-014-5821-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 05/07/2014] [Indexed: 10/25/2022]
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Zhu Z, Sun L, Huang X, Ran W, Shen Q. Comparison of the kinetics of lipopeptide production by Bacillus amyloliquefaciens XZ-173 in solid-state fermentation under isothermal and non-isothermal conditions. World J Microbiol Biotechnol 2014; 30:1615-23. [PMID: 24370986 DOI: 10.1007/s11274-013-1587-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 12/19/2013] [Indexed: 10/25/2022]
Abstract
This study aimed to compare the kinetics of lipopeptide production in solid-state fermentation (SSF) under isothermal and non-isothermal conditions. Models based on the logistic, modified Gompertz and Luedeking-Piret-like equations were developed to describe the time course of fermentation under different conditions. The experiments were conducted in 250 mL flasks and a 50 L fermenter. The results showed that the non-isothermal process had higher levels of product formation rate and substrate utilization rate compared to the isothermal process. The part of substrate carbon to meet microbial maintenance-energy, biomass and lipopeptides formation requirements got increased using the non-isothermal technique. In addition, fermenter conditions positively influenced the lipopeptides formation rate with significantly higher levels of substrate for the microbial growth and product formation, though the product productivity and biomass both decreased as compared to flask. This is the first report that investigates the effects of temperature changing on the kinetics of lipopeptide production by Bacillus amyloliquefaciens strain under SSF condition using soybean flour and rice straw as major substrates in flask and in fermenter.
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Affiliation(s)
- Zhen Zhu
- National Engineering Research Center for Organic-Based Fertilizers, Nanjing Agricultural University, Nanjing, 210095, China,
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Pliego-Sandoval J, Amaya-Delgado L, Mateos-Díaz JC, Rodríguez J, Córdova J, Alba A, Jaubert S, Herrera-López EJ. Multiplex Gas Sampler for Monitoring Respirometry in Column-Type Bioreactors used in Solid-State Fermentation. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2012.0013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Motta FL, Santana MHA. Solid-state fermentation for humic acids production by a Trichoderma reesei strain using an oil palm empty fruit bunch as the substrate. Appl Biochem Biotechnol 2013; 172:2205-17. [PMID: 24343369 DOI: 10.1007/s12010-013-0668-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 12/01/2013] [Indexed: 11/30/2022]
Abstract
Empty fruit bunch (EFB), an underutilized waste product of oil palm processing, was studied as a substrate for the production of humic acids (HA) by a Trichoderma reesei strain by solid-state fermentation (SSF) in Raimbault columns. HA have attracted the attention of many investigators due to their applications in agriculture, industry, the environment, and biomedicine. Commercial HA are currently chemically extracted from peat and coal, which are nonrenewable carbon sources. Biotechnological processes are important for their sustainable and controlled production, with SSF being especially promising for mimicking the natural habitat of fungi. Trichoderma sporulation and HA production are related, and the results of this study showed that SSF stimulated fast sporulation. The productivity related to HA was much higher than that of the biomass, indicating an efficient utilization of EFB. These findings, added to the low cost of EFB, make SSF an attractive process for HA production.
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Affiliation(s)
- F L Motta
- Development of Biotechnological Processes Laboratory, School of Chemical Engineering, University of Campinas, Campinas, São Paulo, 13083-852, Brazil
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A novel membrane-surface liquid co-culture to improve the production of laccase from Ganoderma lucidum. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mathematical Models for Microbial Kinetics in Solid-State Fermentation: A Review. IRANIAN JOURNAL OF BIOTECHNOLOGY 2013. [DOI: 10.5812/ijb.9426] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhang YY, Liu JH, Zhou YM, Zhang YY, Liu Y, Gong TY, Wang J. A new two-phase kinetic model of sporulation of Clonostachys rosea in a new solid-state fermentation reactor. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.03.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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