Works by Görgens, Johann F.

Results: 59

The effect of operating conditions on neutral sulphite semi-chemical pulping properties: an industrial pilot plant study.

Published in:

Cellulose, 2024, v. 31, n. 13, p. 8221, doi. 10.1007/s10570-024-06091-5

By:

Lambert, Matthew A.;
Wahl, Helene;
Bosman, Catharine E.;
Louw, Tobias M.;
Auret, Lidia;
Görgens, Johann F.

Publication type:

Article

The metabolic burden of the PGK1 and ADH2 promoter systems for heterologous xylanase production by Saccharomyces cerevisiae in defined medium.

Published in:

Biotechnology & Bioengineering, 2001, v. 73, n. 3, p. 238, doi. 10.1002/bit.1056

By:

Görgens, Johann F.;
van Zyl, Willem H.;
Knoetze, Johannes H.;
Hahn-Hägerdal, Bärbel

Publication type:

Article

Effect of production scale on the techno-economic viability and environmental life cycle analysis of lactic acid production in a sugarcane biorefinery.

Published in:

Food & Bioproducts Processing: Transactions of the Institution of Chemical Engineers Part C, 2024, v. 148, p. 269, doi. 10.1016/j.fbp.2024.09.020

By:

Brobbey, Mensah S.;
Louw, Janus P.;
Louw, Jeanne;
Görgens, Johann F.

Publication type:

Article

A techno-economic study of Polybutylene adipate terephthalate (PBAT) production from molasses in an integrated sugarcane biorefinery.

Published in:

Food & Bioproducts Processing: Transactions of the Institution of Chemical Engineers Part C, 2024, v. 145, p. 11, doi. 10.1016/j.fbp.2024.01.011

By:

Ratshoshi, Brankie K.;
Farzad, Somayeh;
Görgens, Johann F.

Publication type:

Article

Environmental impact assessment of lignocellulosic lactic acid production: Integrated with existing sugar mills.

Published in:

Food & Bioproducts Processing: Transactions of the Institution of Chemical Engineers Part C, 2016, v. 99, p. 58, doi. 10.1016/j.fbp.2016.04.005

By:

Daful, Asfaw Gezae;
Haigh, Kathleen;
Vaskan, Pavel;
Görgens, Johann F.

Publication type:

Article

Increased Hepatitis B surface antigen production by recombinant Aspergillus niger through the optimization of agitation and dissolved oxygen concentration.

Published in:

Applied Microbiology & Biotechnology, 2007, v. 75, n. 2, p. 279, doi. 10.1007/s00253-006-0812-9

By:

James, Emmanuel R.;
Van Zyl, Willem H.;
Görgens, Johann F.

Publication type:

Article

Amino acid supplementation improves heterologous protein production by Saccharomyces cerevisiae in defined medium.

Published in:

Applied Microbiology & Biotechnology, 2005, v. 67, n. 5, p. 684, doi. 10.1007/s00253-004-1803-3

By:

Görgens, Johann F.;
Van Zyl, Willem H.;
Knoetze, Johannes H.;
Hahn-Hägerdal, Bärbel

Publication type:

Article

Cationization of Eucalyptus grandis 4- O-methyl glucuronoxylan for application as a wet-end additive in a papermaking process.

Published in:

Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 2014, v. 68, n. 5, p. 519, doi. 10.1515/hf-2013-0100

By:

Postma, Dirk;
Chimphango, Annie F.A.;
Görgens, Johann F.

Publication type:

Article

Hemicelluloses extraction from giant bamboo (Bambusa balcooa Roxburgh) prior to kraft or soda-AQ pulping and its effect on pulp physical properties.

Published in:

Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 2013, v. 67, n. 8, p. 863, doi. 10.1515/hf-2012-0197

By:

Vena, Phumla Faith;
Brienzo, Michel;
del Prado García-Aparicio, María;
Görgens, Johann F.;
Rypstra, Tim

Publication type:

Article

Influence of codon optimization, promoter, and strain selection on the heterologous production of a β-fructofuranosidase from Aspergillus fijiensis ATCC 20611 in Pichia pastoris.

Published in:

Folia Microbiologica, 2022, v. 67, n. 2, p. 339, doi. 10.1007/s12223-022-00947-8

By:

Coetzee, Gerhardt;
Smith, Jacques J.;
Görgens, Johann F.

Publication type:

Article

Economic comparison of decentralized versus centralized processing of sugarcane to fructooligosaccharides and ethanol.

Published in:

Biofuels, Bioproducts & Biorefining, 2023, v. 17, n. 6, p. 1566, doi. 10.1002/bbb.2525

By:

Klaver, Monique;
Petersen, Abdul M.;
Görgens, Johann F.

Publication type:

Article

Polyethylene furanoate: technoeconomic analysis of biobased production.

Published in:

Biofuels, Bioproducts & Biorefining, 2023, v. 17, n. 1, p. 135, doi. 10.1002/bbb.2430

By:

Louw, Janus;
Farzad, Somayeh;
Görgens, Johann F.

Publication type:

Article

Techno‐economics of one‐stage and two‐stage furfural production integrated with ethanol co‐production from sugarcane lignocelluloses.

Published in:

Biofuels, Bioproducts & Biorefining, 2021, v. 15, n. 6, p. 1900, doi. 10.1002/bbb.2289

By:

Ntimbani, Rhulani N.;
Farzad, Somayeh;
Görgens, Johann F.

Publication type:

Article

Techno‐economic assessment of polylactic acid and polybutylene succinate production in an integrated sugarcane biorefinery.

Published in:

Biofuels, Bioproducts & Biorefining, 2021, v. 15, n. 6, p. 1871, doi. 10.1002/bbb.2287

By:

Ratshoshi, Brankie Karabo;
Farzad, Somayeh;
Görgens, Johann F.

Publication type:

Article

Revitalizing the sugarcane industry by adding value to A‐molasses in biorefineries.

Published in:

Biofuels, Bioproducts & Biorefining, 2020, v. 14, n. 5, p. 1089, doi. 10.1002/bbb.2122

By:

Dogbe, Eunice S.;
Mandegari, Mohsen;
Görgens, Johann F.

Publication type:

Article

Techno‐economic analysis of inulooligosaccharides, protein, and biofuel co‐production from Jerusalem artichoke tubers: A biorefinery approach.

Published in:

Biofuels, Bioproducts & Biorefining, 2020, v. 14, n. 4, p. 776, doi. 10.1002/bbb.2105

By:

Bedzo, Oscar K. K.;
Mandegari, Mohsen;
Görgens, Johann F.

Publication type:

Article

Economic evaluation and comparison of succinic acid and electricity co‐production from sugarcane bagasse and trash lignocelluloses in a biorefinery, using different pretreatment methods: dilute acid (H<sub>2</sub>SO<sub>4</sub>), alkaline (NaOH), organosolv, ammonia fibre expansion (AFEX™), steam explosion (STEX), and wet oxidation

Published in:

Biofuels, Bioproducts & Biorefining, 2020, v. 14, n. 1, p. 55, doi. 10.1002/bbb.2020

By:

Nieder‐Heitmann, Mieke;
Haigh, Kathleen;
Louw, Janus;
Görgens, Johann F.

Publication type:

Article

Overcoming lignocellulose‐derived microbial inhibitors: advancing the Saccharomyces cerevisiae resistance toolbox.

Published in:

Biofuels, Bioproducts & Biorefining, 2019, v. 13, n. 6, p. 1520, doi. 10.1002/bbb.2042

By:

Brandt, Bianca A.;
Jansen, Trudy;
Görgens, Johann F.;
Zyl, Willem H.

Publication type:

Article

Comparison of immobilized and free enzyme systems in industrial production of short‐chain fructooligosaccharides from sucrose using a techno‐economic approach.

Published in:

Biofuels, Bioproducts & Biorefining, 2019, v. 13, n. 5, p. 1274, doi. 10.1002/bbb.2025

By:

Bedzo, Oscar K. K.;
Mandegari, Mohsen;
Görgens, Johann F.

Publication type:

Article

Process design and economic evaluation of integrated, multi‐product biorefineries for the co‐production of bio‐energy, succinic acid, and polyhydroxybutyrate (PHB) from sugarcane bagasse and trash lignocelluloses.

Published in:

Biofuels, Bioproducts & Biorefining, 2019, v. 13, n. 3, p. 599, doi. 10.1002/bbb.1972

By:

Nieder‐Heitmann, Mieke;
Haigh, Kathleen;
Görgens, Johann F.

Publication type:

Article

Comparison of recovery of volatile fatty acids and mixed ketones as alternative downstream processes for acetogenisis fermentation.

Published in:

2018

By:

Petersen, Abdul M.;
Franco, Telma;
Görgens, Johann F.

Publication type:

Correction Notice

Using steam explosion or AFEX™ to produce animal feeds and biofuel feedstocks in a biorefinery based on sugarcane residues.

Published in:

Biofuels, Bioproducts & Biorefining, 2018, v. 12, n. 6, p. 978, doi. 10.1002/bbb.1927

By:

Mokomele, Thapelo;
da Costa Sousa, Leonardo;
Bals, Bryan;
Balan, Venkatesh;
Goosen, Neill;
Dale, Bruce E.;
Görgens, Johann F.

Publication type:

Article

Simulation and comparison of processes for biobutanol production from lignocellulose via ABE fermentation.

Published in:

Biofuels, Bioproducts & Biorefining, 2018, v. 12, n. 6, p. 1023, doi. 10.1002/bbb.1917

By:

Haigh, Kathleen F.;
Petersen, Abdul M.;
Gottumukkala, Lalitha;
Mandegari, Mohsen;
Naleli, Karabo;
Görgens, Johann F.

Publication type:

Article

Comparison of recovery of volatile fatty acids and mixed ketones as alternative downstream processes for acetogenisis fermentation.

Published in:

Biofuels, Bioproducts & Biorefining, 2018, v. 12, n. 5, p. 882, doi. 10.1002/bbb.1901

By:

Petersen, Abdul M.;
Franco, Telma;
Görgens, Johann F.

Publication type:

Article

Economic analysis of bioethanol and electricity production from sugarcane in South Africa.

Published in:

Biofuels, Bioproducts & Biorefining, 2018, v. 12, n. 2, p. 224, doi. 10.1002/bbb.1833

By:

Petersen, Abdul M.;
Van der Westhuizen, Willem A.;
Mandegari, Mohsen A.;
Görgens, Johann F.

Publication type:

Article

Multi-criteria analysis of a biorefinery for co-production of lactic acid and ethanol from sugarcane lignocellulose.

Published in:

Biofuels, Bioproducts & Biorefining, 2017, v. 11, n. 6, p. 971, doi. 10.1002/bbb.1801

By:

Mandegari, Mohsen Ali;
Farzad, Somayeh;
van Rensburg, Eugéne;
Görgens, Johann F.

Publication type:

Article

Rational engineering of Saccharomycescerevisiae towards improved tolerance to multiple inhibitors in lignocellulose fermentations.

Published in:

Biotechnology for Biofuels, 2021, v. 14, n. 1, p. 1, doi. 10.1186/s13068-021-02021-w

By:

Brandt, Bianca A.;
García-Aparicio, Maria D. P.;
Görgens, Johann F.;
van Zyl, Willem H.

Publication type:

Article

Expression of unique chimeric human papilloma virus type 16 (HPV‐16) L1‐L2 proteins in Pichia pastoris and Hansenula polymorpha.

Published in:

Yeast, 2018, v. 35, n. 9, p. 519, doi. 10.1002/yea.3318

By:

Bredell, Helba;
Smith, Jacques J.;
Görgens, Johann F.;
van Zyl, Willem H.

Publication type:

Article

Effect of dimorphic regulation on heterologous glucose oxidase production by Mucor circinelloides.

Published in:

Yeast, 2010, v. 27, n. 10, p. 849, doi. 10.1002/yea.1793

By:

Bredenkamp, Astrid;
Velankar, Harshad;
van Zyl, Willem H.;
Görgens, Johann F.

Publication type:

Article

Comparison of three expression systems for heterologous xylanase production by S. cerevisiae in defined medium.

Published in:

Yeast, 2004, v. 21, n. 14, p. 1205, doi. 10.1002/yea.1175

By:

Görgens, Johann F.;
Planas, Jordi;
van Zyl, Willem H.;
Knoetze, Johannes H.;
Hahn-Hägerdal, Bärbel

Publication type:

Article

Microbe and bioprocess performances for sustainable production of biobased 2,3-butanediol in a sugarcane biorefinery; a technoeconomic and environmental analysis.

Published in:

Clean Technologies & Environmental Policy, 2024, v. 26, n. 12, p. 4505, doi. 10.1007/s10098-024-02843-w

By:

Sikazwe, Manasseh K.;
Louw, Jeanne;
Görgens, Johann F.

Publication type:

Article

Biobased acrylic acid production in a sugarcane biorefinery: A techno-economic assessment using lactic acid, 3-hydroxypropionic acid and glycerol as intermediates.

Published in:

Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers Part A, 2023, v. 193, p. 367, doi. 10.1016/j.cherd.2023.03.034

By:

Brobbey, Mensah S.;
Louw, Jeanne;
Görgens, Johann F.

Publication type:

Article

Ethanol Production from Whole Sugarcane Using Solid-State Fermentation.

Published in:

BioEnergy Research, 2025, v. 18, n. 1, p. 1, doi. 10.1007/s12155-025-10840-0

By:

van Dyk, Janke;
Görgens, Johann F.;
van Rensburg, Eugéne

Publication type:

Article

Maximizing Total Sugar Recovery from Low Severity Pretreatment-Hydrolysis of Sweet Sorghum Bagasse Through Cultivar Selection and Process Optimization.

Published in:

BioEnergy Research, 2024, v. 17, n. 1, p. 234, doi. 10.1007/s12155-023-10642-2

By:

Bedzo, Oscar K. K.;
Diedericks, Danie;
McIntosh, Paul;
Rorke, Daneal C. S.;
van Rensburg, Eugene;
Görgens, Johann F.

Publication type:

Article

Effective Fermentation of Sugarcane Bagasse Whole Slurries Using Robust Xylose-Capable Saccharomyces cerevisiae.

Published in:

BioEnergy Research, 2023, v. 16, n. 4, p. 2297, doi. 10.1007/s12155-023-10577-8

By:

Mokomele, Thapelo;
Brandt, Bianca A.;
Görgens, Johann F.

Publication type:

Article

Optimisation of Pretreatment Catalyst, Enzyme Cocktail and Solid Loading for Improved Ethanol Production from Sweet Sorghum Bagasse.

Published in:

BioEnergy Research, 2022, v. 15, n. 2, p. 1083, doi. 10.1007/s12155-021-10298-w

By:

Bedzo, Oscar K. K.;
Dreyer, Casper B.;
van Rensburg, Eugéne;
Görgens, Johann F.

Publication type:

Article

Economic and Environmental Comparison of the Monosodium Glutamate (MSG) Production Processes from A‐Molasses in an Integrated Sugarcane Biorefinery.

Published in:

International Journal of Chemical Engineering (1687806X), 2024, v. 2024, p. 1, doi. 10.1155/2024/2077515

By:

Petersen, Abdul M.;
Louw, Jeanne;
Görgens, Johann F.;
Proietto, Federica

Publication type:

Article

Sequential extraction of protein and inulin from the tubers of Jerusalem artichoke (Helianthus tuberosus L.).

Published in:

Journal of Food Science & Technology, 2020, v. 57, n. 2, p. 775, doi. 10.1007/s13197-019-04110-z

By:

Maumela, Pfariso;
van Rensburg, Eugéne;
Chimphango, Annie F. A.;
Görgens, Johann F.

Publication type:

Article

Engineering Saccharomyces cerevisiae for direct conversion of raw, uncooked or granular starch to ethanol.

Published in:

Critical Reviews in Biotechnology, 2015, v. 35, n. 3, p. 369, doi. 10.3109/07388551.2014.888048

By:

Görgens, Johann F.;
Bressler, David C.;
van Rensburg, Eugéne

Publication type:

Article

Optimizing the mechanical properties of coal-fines briquettes produced with steam-exploded sugarcane bagasse as a binder.

Published in:

International Journal of Coal Preparation & Utilization, 2024, v. 44, n. 2, p. 170, doi. 10.1080/19392699.2023.2179041

By:

van der Westhuizen, Lodewicus;
Diedericks, Danie;
Akdogan, Guven;
Görgens, Johann F.

Publication type:

Article

Multi-product biorefineries from lignocelluloses: a pathway to revitalisation of the sugar industry?

Published in:

Biotechnology for Biofuels, 2017, v. 10, p. 1, doi. 10.1186/s13068-017-0761-9

By:

Farzad, Somayeh;
Mandegari, Mohsen Ali;
Miao Guo;
Haigh, Kathleen F.;
Shah, Nilay;
Görgens, Johann F.

Publication type:

Article

Techno-economic and environmental assessment of a sugarcane biorefinery: direct and indirect production pathways of biobased adipic acid.

Published in:

Biofuel Research Journal, 2024, v. 11, n. 4, p. 2225, doi. 10.18331/BRJ2024.11.4.3

By:

Sikazwe, Manasseh K.;
Louw, Jeanne;
Görgens, Johann F.

Publication type:

Article

A critical review of multiple alternative pathways for the production of a high-value bioproduct from sugarcane mill byproducts: the case of adipic acid.

Published in:

Biofuel Research Journal, 2023, v. 10, n. 3, p. 1933, doi. 10.18331/BRJ2023.10.3.5

By:

Cronjé, Yakim;
Farzad, Somayeh;
Mandegari, Mohsen;
Görgens, Johann F.

Publication type:

Article

Techno-economics of integrating bioethanol production from spent sulfite liquor for reduction of greenhouse gas emissions from sulfite pulping mills.

Published in:

Biotechnology for Biofuels, 2014, v. 7, n. 1, p. 24, doi. 10.1186/s13068-014-0169-8

By:

Petersen, Abdul M.;
Haigh, Kate;
Görgens, Johann F.

Publication type:

Article

Impact of cultivar selection and process optimization on ethanol yield from different varieties of sugarcane.

Published in:

Biotechnology for Biofuels, 2014, v. 7, n. 1, p. 1, doi. 10.1186/1754-6834-7-60

By:

Benjamin, Yuda;
García-Aparicio, Maria P.;
Görgens, Johann F.

Publication type:

Article

Amberlite IRA 900 versus calcium alginate in immobilization of a novel, engineered β‐fructofuranosidase for short‐chain fructooligosaccharide synthesis from sucrose.

Published in:

Biotechnology Progress, 2019, v. 35, n. 3, p. N.PAG, doi. 10.1002/btpr.2797

By:

Bedzo, Oscar K. K.;
Gottumukkala, Lalitha D.;
Coetzee, Gerhardt;
Görgens, Johann F.;
Trollope, Kim

Publication type:

Article

Enhancing the enzymatic digestibility of sugarcane bagasse through the application of an ionic liquid in combination with an acid catalyst.

Published in:

Biotechnology Progress, 2012, v. 28, n. 1, p. 76, doi. 10.1002/btpr.711

By:

Diedericks, Danie;
Rensburg, Eugéne van;
del Prado García-Aparicio, María;
Görgens, Johann F.

Publication type:

Article

Adaptation of Saccharomyces cerevisiae in a concentrated spent sulphite liquor waste stream for increased inhibitor resistance.

Published in:

Applied Microbiology & Biotechnology, 2022, v. 106, n. 1, p. 455, doi. 10.1007/s00253-021-11710-3

By:

Brandt, Bianca A.;
García-Aparicio, María P.;
Görgens, Johann F.;
van Zyl, Willem H.

Publication type:

Article

Designing industrial yeasts for the consolidated bioprocessing of starchy biomass to ethanol.

Published in:

Bioengineered, 2013, v. 4, n. 2, p. 1, doi. 10.4161/bioe.22268

By:

Favaro, Lorenzo;
Jooste, Tania;
Basaglia, Marina;
Rose, Shaunita H.;
Saayman, Maryna;
Görgens, Johann F.;
Casella, Sergio;
van Zyl, Willem H.

Publication type:

Article

Engineering Saccharomyces cerevisiae for next generation ethanol production.

Published in:

Journal of Chemical Technology & Biotechnology, 2013, v. 88, n. 6, p. 983, doi. 10.1002/jctb.4068

By:

den Haan, Riaan;
Kroukamp, Heinrich;
Mert, Marlin;
Bloom, Marinda;
Görgens, Johann F.;
van Zyl, Willem H.

Publication type:

Article