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Huang J, An Y, Zabed HM, Ravikumar Y, Zhao M, Yun J, Zhang G, Zhang Y, Li X, Qi X. Enhanced Biosynthesis of D-Arabitol by Metschnikowia reukaufii Through Optimizing Medium Composition and Fermentation Conditions. Appl Biochem Biotechnol 2022; 194:3119-3135. [DOI: 10.1007/s12010-022-03910-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 03/14/2022] [Indexed: 01/10/2023]
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Narisetty V, Prabhu AA, Al-Jaradah K, Gopaliya D, Hossain AH, Kumar Khare S, Punt PJ, Kumar V. Microbial itaconic acid production from starchy food waste by newly isolated thermotolerant Aspergillus terreus strain. BIORESOURCE TECHNOLOGY 2021; 337:125426. [PMID: 34174767 DOI: 10.1016/j.biortech.2021.125426] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
In the present study, we have explored the potential of newly isolated Aspergillus terreus BD strain, which can accumulate itaconic acid (IA) at higher temperature. The shake flask cultivation of thermotolerant strain with medium optimized using Box-Behnken Design at 45 °C resulted in IA accumulation of 28.9 g/L with yield of 0.27 g/g. The enzymatic saccharification of the synthetic food waste (SFW) consisting of potatoes, rice & noodles were optimized using Taguchi method of orthogonal array to maximize the release of fermentable sugar. The maximum glucose release of 0.60 g/g was achieved with 10% biomass loading, 5% enzyme concentration, pH 5.5 and temperature 60 0C. The sugars obtained from SFW was integrated with IA production and maximum IA titer achieved with SFW hydrolysate during bioreactor cultivation was 41.1 g/L with conversion yield of 0.27 g/g while with pure glucose IA titer and yield were 44.7 g/L and 0.30 g/g, respectively.
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Affiliation(s)
- Vivek Narisetty
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Ashish A Prabhu
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Khalid Al-Jaradah
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Deeksha Gopaliya
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Abeer H Hossain
- Dutch DNA Biotech B.V., Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Sunil Kumar Khare
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Peter J Punt
- Dutch DNA Biotech B.V., Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Vinod Kumar
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK.
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Maina S, Kachrimanidou V, Ladakis D, Papanikolaou S, de Castro AM, Koutinas A. Evaluation of 1,3-propanediol production by twoCitrobacter freundiistrains using crude glycerol and soybean cake hydrolysate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35523-35532. [PMID: 31267386 DOI: 10.1007/s11356-019-05485-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
Biodiesel production processes using soybean as feedstock generates soybean cake and crude glycerol as by-products. These by-product streams were used as sole feedstocks for the production of 1,3-propanediol (PDO) using two bacterial strains of Citrobacter freundii. Soybean cake has been converted into a nutrient-rich hydrolysate by crude enzymes produced via solid state fermentation. The effect of initial glycerol and free amino nitrogen concentration on bacterial growth and PDO production has been evaluated in batch bioreactor cultures showing that C. freundii VK-19 is a more efficient PDO producer than C. freundii FMCC-8. The cultivation of C. freundii VK-19 in fed-batch bioreactor cultures using crude glycerol and soybean cake hydrolysates led to PDO concentration of 47.4 g/L with yield and productivity of 0.49 g/g and 1.01 g/L/h, respectively. The effect of PDO, metabolic by-products, and sodium and potassium salts on bacterial growth was evaluated showing that potassium salts initially enhance bacterial growth, whereas sodium salts cause significant inhibition to bacterial growth. Soybean cake hydrolysate and crude glycerol could be utilized for PDO production, but the fermentation efficiency is influenced by the catalyst used during biodiesel production.
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Affiliation(s)
- Sofia Maina
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, Athens, Greece
| | - Vasiliki Kachrimanidou
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, Athens, Greece
- Department of Food and Nutritional Sciences, The University of Reading, Whiteknights, P.O. Box 226, Reading, Berkshire, RG6 6AP, UK
| | - Dimitrios Ladakis
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, Athens, Greece
| | - Seraphim Papanikolaou
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, Athens, Greece
| | - Aline Machado de Castro
- Biotechnology Division, Research and Development Center, PETROBRAS, Av. Horácio Macedo, 950, Ilha do Fundão, Rio de Janeiro, 21941-915, Brazil
| | - Apostolis Koutinas
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, Athens, Greece.
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Kim M, Lee B, Kim HS, Nam K, Moon M, Oh HM, Chang YK. Increased biomass and lipid production of Ettlia sp. YC001 by optimized C and N sources in heterotrophic culture. Sci Rep 2019; 9:6830. [PMID: 31048751 PMCID: PMC6497641 DOI: 10.1038/s41598-019-43366-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/17/2019] [Indexed: 01/21/2023] Open
Abstract
The culture conditions and media composition for the heterotrophic culture of an axenic strain of Ettlia sp. YC001 were firstly optimized using the Plackett-Burman design (PBD) and response surface methodology (RSM). The strain successfully showed higher productivity in the basal media without any light illumination at 32.2 to 33.3 °C. The PBD results showed that the most effective components for biomass productivity of Ettlia sp. were fructose and yeast extract for sources of C and N, respectively. The RSM results showed an optimal level of 72.2 g/L for fructose and 21.5 g/L for yeast extract, resulting in 46.1 g/L biomass with a lipid content of 13.8% over a course of 9 days. Using a 5 L scaled-up fermentation system for 6 days, the production of biomass and lipids was 7.21 g/L/day and 1.18 g/L/day, respectively. Consequently, heterotrophic cultivation of Ettlia sp. YC001 provided much higher production of biomass and lipids than those of autotrophic cultivation. As further research, the use of substitute substrates instead of fructose and yeast extract should be developed to reduce production costs.
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Affiliation(s)
- Minsik Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Bongsoo Lee
- Department of Microbial and Nano Materials, Mokwon University, 88 Doanbuk-ro, Yuseong-gu, Daejeon, 35349, Republic of Korea
| | - Hee Su Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Kibok Nam
- LG Chem, 30 Magokjungang 10-ro, Gangseo-gu, Seoul, 07796, Republic of Korea
| | - Myounghoon Moon
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research (KIER), 270-25 Samso-ro, Buk-gu, Gwangju, 61003, Republic of Korea
| | - Hee-Mock Oh
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Yong Keun Chang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea. .,Advanced Biomass R&D Center (ABC), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Prediction Models to Control Aging Time in Red Wine. Molecules 2019; 24:molecules24050826. [PMID: 30813519 PMCID: PMC6429329 DOI: 10.3390/molecules24050826] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/05/2019] [Accepted: 02/21/2019] [Indexed: 11/17/2022] Open
Abstract
A combination of physical-chemical analysis has been used to monitor the aging of red wines from D.O. Toro (Spain). The changes in the chemical composition of wines that occur over the aging time can be used to distinguish between wine samples collected after one, four, seven and ten months of aging. Different computational models were used to develop a good authenticity tool to certify wines. In this research, different models have been developed: Artificial Neural Network models (ANNs), Support Vector Machine (SVM) and Random Forest (RF) models. The results obtained for the ANN model developed with sigmoidal function in the output neuron and the RF model permit us to determine the aging time, with an average absolute percentage deviation below 1%, so it can be concluded that these two models have demonstrated their capacity to predict the age of wine.
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Vivek N, Pandey A, Binod P. An efficient aqueous two phase systems using dual inorganic electrolytes to separate 1,3-propanediol from the fermented broth. BIORESOURCE TECHNOLOGY 2018; 254:239-246. [PMID: 29413929 DOI: 10.1016/j.biortech.2018.01.076] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/09/2018] [Accepted: 01/15/2018] [Indexed: 06/08/2023]
Abstract
An aqueous two phase extraction using K2CO3:K2HPO4/Isoproponal was investigated for the recovery of 1,3-propanediol from the fermented broth. Initially, the concentration of K2CO3 on phase formation, the partition co-efficient and recovery of 1,3-PDO was evaluated with a optimum salt concentration of 60%. Later the partition co-efficient was improved using dual inorganic salts, K2CO3 and K2HPO4 with an optimum concentration of 45% and 15% respectively. Using Central Composite Design, pH and temperature on partition and recovery of 1,3-PDO was evaluated. With the optimized physical conditions and inorganic salts concentration, ATPS extraction was carried out in synthetic solution as well as fermented broth resulting in maximum 1,3-PDO partition co-efficient value of 42.46 and 56.93 and recovery yield of 97.69 and 98.27% respectively. A fair partition was observed with organic acids and 1,3-PDO, with removal of lactic acid and acetic acid up to 93.29 and 90.42% respectively.
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Affiliation(s)
- Narisetty Vivek
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Ashok Pandey
- CSIR-Indian Institute of Toxicology Research, 31 MG Marg, Lucknow 226 001, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India.
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