1
|
Nunes LV, de Barros Correa FF, de Oliva Neto P, Mayer CRM, Escaramboni B, Campioni TS, de Barros NR, Herculano RD, Fernández Núñez EG. Lactic acid production from submerged fermentation of broken rice using undefined mixed culture. World J Microbiol Biotechnol 2017; 33:79. [PMID: 28341908 DOI: 10.1007/s11274-017-2240-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/06/2017] [Indexed: 10/19/2022]
Abstract
The present work aimed to characterize and optimize the submerged fermentation of broken rice for lactic acid (LA) production using undefined mixed culture from dewatered activated sludge. A microorganism with amylolytic activity, which also produces LA, Lactobacillus amylovorus, was used as a control to assess the extent of mixed culture on LA yield. Three level full factorial designs were performed to optimize and define the influence of fermentation temperature (20-50 °C), gelatinization time (30-60 min) and broken rice concentration in culture medium (40-80 g L-1) on LA production in pure and undefined mixed culture. LA production in mixed culture (9.76 g L-1) increased in sixfold respect to pure culture in optimal assessed experimental conditions. The optimal conditions for maximizing LA yield in mixed culture bioprocess were 31 °C temperature, 45 min gelatinization time and 79 g L-1 broken rice concentration in culture medium. This study demonstrated the positive effect of undefined mixed culture from dewatered activated sludge to produce LA from culture medium formulated with broken rice. In addition, this work establishes the basis for an efficient and low-cost bioprocess to manufacture LA from this booming agro-industrial by-product.
Collapse
Affiliation(s)
- Luiza Varela Nunes
- Grupo de Engenharia de Bioprocessos, Departamento de Ciências Biológicas, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Assis, Avenida Dom Antônio, 2100, Assis, SP, 19806-900, Brazil
| | - Fabiane Fernanda de Barros Correa
- Laboratório de Biotecnologia Industrial, Departamento de Biotecnologia, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Assis, Avenida Dom Antônio, 2100, Assis, SP, 19806-900, Brazil
| | - Pedro de Oliva Neto
- Laboratório de Biotecnologia Industrial, Departamento de Biotecnologia, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Assis, Avenida Dom Antônio, 2100, Assis, SP, 19806-900, Brazil
| | - Cassia Roberta Malacrida Mayer
- Laboratório de Química de Alimentos e Nanobiotecnologia, Departamento de Biotecnologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Campus-Assis, Avenida Dom Antonio 2100, Bairro Parque Universitário, Assis, SP, 19806-900, Brazil
| | - Bruna Escaramboni
- Laboratório de Biotecnologia Industrial, Departamento de Biotecnologia, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Assis, Avenida Dom Antônio, 2100, Assis, SP, 19806-900, Brazil
| | - Tania Sila Campioni
- Laboratório de Biotecnologia Industrial, Departamento de Biotecnologia, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Assis, Avenida Dom Antônio, 2100, Assis, SP, 19806-900, Brazil
| | - Natan Roberto de Barros
- Instituo de Química - Araraquara, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Araraquara, Rua Professor Francisco Degni, 55, Araraquara, SP, 14800-900, Brazil
| | - Rondinelli Donizetti Herculano
- Instituo de Química - Araraquara, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Araraquara, Rua Professor Francisco Degni, 55, Araraquara, SP, 14800-900, Brazil
| | - Eutimio Gustavo Fernández Núñez
- Grupo de Engenharia de Bioprocessos, Departamento de Ciências Biológicas, Universidade Estadual Paulista 'Júlio de Mesquita Filho' Campus-Assis, Avenida Dom Antônio, 2100, Assis, SP, 19806-900, Brazil.
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC, Avenida dos Estados, 5001, Santo André, SP, 09210-580, Brazil.
| |
Collapse
|
2
|
Borshchevskaya LN, Gordeeva TL, Sineoky SP. Comparison of L-lactate dehydrogenases of different origins produced in the cells of yeast Schizosaccharomyces pombe. APPL BIOCHEM MICRO+ 2017. [DOI: 10.1134/s0003683816080020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
3
|
Ulusoy S, Ulusoy HI, Pleissner D, Eriksen NT. Nitrosation and analysis of amino acid derivatives by isocratic HPLC. RSC Adv 2016. [DOI: 10.1039/c5ra25854e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Amino acids are transformed by nitrosation with dinitrogen trioxide into their corresponding α-hydroxy acids, which are separated and analysed by HPLC, and used to quantify the original amino acid concentration in samples.
Collapse
Affiliation(s)
- Songül Ulusoy
- Department of Chemistry and Bioscience
- Aalborg University
- DK-9220 Aalborg
- Denmark
- Department of Chemistry
| | - Halil Ibrahim Ulusoy
- Department of Chemistry and Bioscience
- Aalborg University
- DK-9220 Aalborg
- Denmark
- Department of Analytical Chemistry
| | - Daniel Pleissner
- Department of Bioengineering
- Leibniz-Institute for Agricultural Engineering Potsdam-Bornim e. V
- Potsdam
- Germany
| | | |
Collapse
|
4
|
Sen S, Roychoudhury PK. Development of optimal medium for production of commercially important monoclonal antibody 520C9 by hybridoma cell. Cytotechnology 2012; 65:233-52. [PMID: 22810175 DOI: 10.1007/s10616-012-9480-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 06/24/2012] [Indexed: 11/29/2022] Open
Abstract
Hybridoma HB-8696 produces monoclonal antibody (mAb) 520C9 (mouse IgG(1)), which recognizes breast cancer oncoprotein c-erbB2. The objective of this study was to optimize the medium recipe of HB 8696 cell for production of mAb 520C9. The optimization consisted of two steps: (1) screening of significant nutrients to make subsequent experiments more efficient with less runs and (2) locating their optimal concentrations. 29 variables including essential and non-essential amino acids, glucose, serum and 6 salts, namely NaCl, KCl, CaCl(2), NaH(2)PO(4), MgSO(4) and Na-pyruvate were chosen in screening phase. The Plackett-Burman method was used to screen the variables influencing mAb production. Seven factors namely glucose, serum, asparagine, threonine, serine, NaCl and NaH(2)PO(4) were identified to have a positive influencing role on mAb production with a confidence level >90 % (p < 0.1). Finally, Response surface methodology revealed the optimal level of the variables. The mAb production and average specific mAb production rate were enhanced by 111.05 and 105 %, respectively, compared to control medium.
Collapse
Affiliation(s)
- Sucharita Sen
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Hauz Khas, New Delhi, 110016, India
| | | |
Collapse
|
5
|
Gey MH, Unger KK, Battermann G. HPLC analysis of carbohydrates on POLYSPHER®CH OH columns using pulsed amperometric detection (PAD) with sodium hydroxide as post column detection reagent. ACTA ACUST UNITED AC 1996; 356:339-43. [PMID: 15045236 DOI: 10.1007/s0021663560339] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/1995] [Accepted: 11/20/1995] [Indexed: 10/26/2022]
Abstract
Carbohydrates have been separated on POLYSPHER(R)CH OH columns using pulsed amperometric detection (PAD) and UV detection (lambda =196 nm) in series and pure water as mobile phase. Nearly baseline separations have been obtained for the glycoprotein carbohydrates of sialic acid ( N-acetylneuraminic acid, NANA), N-acetylglucosamine (GlcNAc) and N-acetylgalactosamine (GalNAc). As carbohydrates dissolved and eluted with pure water are present in the neutral form they are not detectable with PAD in contrast to carbohydrate anions formed at high pH values. Therefore an additional NaOH post column reagent has been continuously pumped through a mixing chamber into the mobile phase to form carbohydrate anions resulting in improved detection limits. Monosaccharides as well as glycoprotein carbohydrates could be detected in the microg/ml-range. This method has been applied successfully to the analysis of sugars in fruit juice. With only 2 microl of juice per 50 ml water, the determination of the main constituents, sucrose, glucose and fructose, was possible in a few minutes without sample preparation.
Collapse
Affiliation(s)
- M H Gey
- Institute of Inorganic and Analytical Chemistry, Department of Research and Development, Johannes Gutenberg University Mainz, Obere Zahlbacher Strasse 63, D-55 101, Mainz, Germany
| | | | | |
Collapse
|
6
|
Gey MH, Unger KK. Calculation of the molecular masses of two newly synthesized thermostable enzymes isolated from thermophilic microorganisms. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL APPLICATIONS 1995; 666:188-93. [PMID: 7655618 DOI: 10.1016/0378-4347(94)00562-j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Two thermostable enzymes synthesized by thermophilic microorganisms were isolated and purified. A thermostable beta-galactosidase was produced in a continuous fermentation process by Bacillus stearothermophilus TP 32 as an intracellular enzyme. After applying different concentration procedures the raw extract enzyme was prepurified on a Sephadex G-200 size exclusion column. The isolated beta-galactosidase fraction was then separated with HPLC on a TSK G 3000 SW size exclusion column to determine the molecular mass based on calibration curves of standard proteins. The other enzyme, a thermostable protease, was synthesized by Bacillus stearothermophilus TP 26 as an extracellular enzyme. After its concentration, the enzyme was purified on a classical size exclusion column (Sephacryl S-200) and on a HPLC size exclusion column (BIO-SIL TSK-250). The micropreparatively isolated fraction was separated again on this HPLC column to determine its molecular mass. The optimum temperature of both enzymes was approximately 75 degrees C.
Collapse
Affiliation(s)
- M H Gey
- Institute of Anorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Germany
| | | |
Collapse
|