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Viteri G, Aranda A, Díaz de Mera Y, Rodríguez A, Rodríguez D, Rodríguez-Fariñas N, Valiente N, Seseña S. Effects of massive desiccation of olive waste residues on air quality. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 359:124542. [PMID: 39002752 DOI: 10.1016/j.envpol.2024.124542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/15/2024]
Abstract
New industries are proliferating in the recovery of agri-food wastes, such as those involved in the revaluation of alperujo, generated in the production of olive oil. Despite the potential environmental benefits, their activity is not exempt from new forms of emissions, aggravated by the massification of waste treatments. This work reports a six-month field campaign carried out in an alperujo desiccation plant which can serve as a proxy for these emerging industries in the Mediterranean countries. The study focused on air quality parameters, covering criteria pollutants, metals and microbiological load of particulate matter and the characterization of volatile organic compounds (VOCs). The results show a slight contribution of the factory to the NOx levels in the surroundings (3.0-12.5 μg/m3). Statistically significant effects were not observed for ozone, CO, SO2, or PM10. Concerning the levels of metals, concentrations were low and calculated health risk indexes indicated safe conditions in the area. The most abundant elements were Na (6.5 × 102 ng/m3), K (4.0 × 102 ng/m3), Al (2.7 × 102 ng/m3), Zn (2.1 × 102 ng/m3), Ca (2.16 × 102 ng/m3), Fe (3.6 × 101 ng/m3) and Mg (3.2 × 101 ng/m3). Bacterial counts, with a mean value of 15.9 CFU/m3, showed a seasonal shift, mainly explained by weather (air moisture and temperature) and PM2.5 concentration. The genomic analysis showed Cutibacterium as the dominant genus during the cold months while Bacillus predominated in the warm season. The VOCs with higher average concentrations were acetic acid (130 μg/m3), nonanoic acid (124 μg/m3), benzoic acid (29.7 μg/m3), octanoic acid (19.9 μg/m3) and nonanal (4.70 μg/m3), with the rest of compounds in concentrations below 4 μg/m3. Odorant pollutants with the greatest contribution to olfactory nuisance were aldehydes (from pentanaldehyde to decanaldehyde), acetic acid and phenol. Although the observable effects of the waste treatments were low, several parameters showed an influence on the environment which should be assessed to foresee and prevent long-term consequences.
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Affiliation(s)
- Gabriela Viteri
- Facultad de Ciencias y Tecnologías Químicas, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - Alfonso Aranda
- Facultad de Ciencias y Tecnologías Químicas, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain.
| | - Yolanda Díaz de Mera
- Facultad de Ciencias y Tecnologías Químicas, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - Ana Rodríguez
- Facultad de Ciencias Ambientales y Bioquímica, Avenida Carlos III s/n, 45071, Toledo, Spain
| | - Diana Rodríguez
- Facultad de Ciencias Ambientales y Bioquímica, Avenida Carlos III s/n, 45071, Toledo, Spain
| | | | - Nicolás Valiente
- Departamento de Ciencia y Tecnología Agroforestal y Genética, Campus Universitario s/n, 02071, Albacete, Spain
| | - Susana Seseña
- Facultad de Ciencias Ambientales y Bioquímica, Avenida Carlos III s/n, 45071, Toledo, Spain
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Eskandari A, Leow TC, Rahman MBA, Oslan SN. Recent insight into the advances and prospects of microbial lipases and their potential applications in industry. Int Microbiol 2024:10.1007/s10123-024-00498-7. [PMID: 38489100 DOI: 10.1007/s10123-024-00498-7] [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: 01/29/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/17/2024]
Abstract
Enzymes play a crucial role in various industrial sectors. These biocatalysts not only ensure sustainability and safety but also enhance process efficiency through their unique specificity. Lipases possess versatility as biocatalysts and find utilization in diverse bioconversion reactions. Presently, microbial lipases are gaining significant focus owing to the rapid progress in enzyme technology and their widespread implementation in multiple industrial procedures. This updated review presents new knowledge about various origins of microbial lipases, such as fungi, bacteria, and yeast. It highlights both the traditional and modern purification methods, including precipitation and chromatographic separation, the immunopurification technique, the reversed micellar system, the aqueous two-phase system (ATPS), and aqueous two-phase flotation (ATPF), moreover, delves into the diverse applications of microbial lipases across several industries, such as food, vitamin esters, textile, detergent, biodiesel, and bioremediation. Furthermore, the present research unveils the obstacles encountered in employing lipase, the patterns observed in lipase engineering, and the application of CRISPR/Cas genome editing technology for altering the genes responsible for lipase production. Additionally, the immobilization of microorganisms' lipases onto various carriers also contributes to enhancing the effectiveness and efficiencies of lipases in terms of their catalytic activities. This is achieved by boosting their resilience to heat and ionic conditions (such as inorganic solvents, high-level pH, and temperature). The process also facilitates the ease of recycling them and enables a more concentrated deposition of the enzyme onto the supporting material. Consequently, these characteristics have demonstrated their suitability for application as biocatalysts in diverse industries.
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Affiliation(s)
- Azadeh Eskandari
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
| | - Thean Chor Leow
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
- Enzyme Technology and X-ray Crystallography Laboratory, VacBio 5, Institute of Bioscience, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
| | | | - Siti Nurbaya Oslan
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia.
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia.
- Enzyme Technology and X-ray Crystallography Laboratory, VacBio 5, Institute of Bioscience, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia.
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Nguyen VDH, Huynh TNP, Nguyen TTT, Ho HH, Trinh LTP, Nguyen AQ. Expression and characterization of a lipase EstA from Bacillus subtilis KM-BS for application in bio-hydrolysis of waste cooking oil. Protein Expr Purif 2024; 215:106419. [PMID: 38110109 DOI: 10.1016/j.pep.2023.106419] [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: 09/19/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023]
Abstract
A lipase EstA from Bacillus subtilis KM-BS was expressed in Escherichia coli BL21 (DE3) cells. The recombinant enzyme achieved high activity (49.67 U/mL) with protein concentration of 1.29 mg/mL under optimal conditions at the large-scale expression of 6 h and post-induction time at 30 °C using 0.1 mM isopropyl-β-d-thiogalactopyranoside (IPTG). The optimal temperature and pH of the purified enzyme were at 45-55 °C and pH 8.0 - 9.0, respectively. Activity of the purified enzyme was stable in the presence of 1 mM Ca2+; stimulated by 1 mM Mg2+ and Mn2+, and inhibited by Fe3+. A significant amount of fatty acids was released during the hydrolysis of waste cooking oil under the catalysis of purified lipase, indicating that this recombinant lipase showed promise as a suitable candidate in industrial fields, particularly in biodiesel and detergent sector.
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Affiliation(s)
- Vinh D H Nguyen
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Trang N P Huynh
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Thao T T Nguyen
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Hai H Ho
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Ly T P Trinh
- Research Institute for Biotechnology and Environment, Nong Lam University, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Anh Q Nguyen
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam.
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Kadam V, Dhanorkar M, Patil S, Singh P. Advances in the co-production of biosurfactant and other biomolecules: statistical approaches for process optimization. J Appl Microbiol 2024; 135:lxae025. [PMID: 38308506 DOI: 10.1093/jambio/lxae025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 01/24/2024] [Accepted: 02/01/2024] [Indexed: 02/04/2024]
Abstract
An efficient microbial conversion for simultaneous synthesis of multiple high-value compounds, such as biosurfactants and enzymes, is one of the most promising aspects for an economical bioprocess leading to a marked reduction in production cost. Although biosurfactant and enzyme production separately have been much explored, there are limited reports on the predictions and optimization studies on simultaneous production of biosurfactants and other industrially important enzymes, including lipase, protease, and amylase. Enzymes are suited for an integrated production process with biosurfactants as multiple common industrial processes and applications are catalysed by these molecules. However, the complexity in microbial metabolism complicates the production process. This study details the work done on biosurfactant and enzyme co-production and explores the application and scope of various statistical tools and methodologies in this area of research. The use of advanced computational tools is yet to be explored for the optimization of downstream strategies in the co-production process. Given the complexity of the co-production process and with various new methodologies based on artificial intelligence (AI) being invented, the scope of AI in shaping the biosurfactant-enzyme co-production process is immense and would lead to not only efficient and rapid optimization, but economical extraction of multiple biomolecules as well.
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Affiliation(s)
- Vaibhav Kadam
- Symbiosis Centre for Waste Resource Management, Symbiosis International (Deemed University), Lavale, Pune-412115, India
| | - Manikprabhu Dhanorkar
- Symbiosis Centre for Waste Resource Management, Symbiosis International (Deemed University), Lavale, Pune-412115, India
| | - Shruti Patil
- Symbiosis Institute of Technology, Symbiosis International (Deemed University), Lavale, Pune-412115, India
| | - Pooja Singh
- Symbiosis Centre for Waste Resource Management, Symbiosis International (Deemed University), Lavale, Pune-412115, India
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Nimkande VD, Krishnamurthi K, Bafana A. Potential of Antarctic lipase from Acinetobacter johnsonii Ant12 for treatment of lipid-rich wastewater: screening, production, properties and applications. Biodegradation 2023; 34:549-566. [PMID: 37354270 DOI: 10.1007/s10532-023-10041-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/30/2023] [Indexed: 06/26/2023]
Abstract
The present study aimed to screen and optimize lipase production by the Antarctic strain Acinetobacter johnsonii Ant12 for lipid-rich wastewater treatment. Lipase production was successfully enhanced threefold through optimization of culture conditions. The optimum crude lipase activity was observed at 50 °C with high stability in a wide temperature range. The lipase also exhibited high activity and stability in the presence of solvents, metal ions, and surfactants. The crude lipase was used for the treatment of lipid-rich wastewater, which poses a significant challenge, as traditional removal methods are often inefficient or non-eco-friendly. In this study, bioaugmentation with Ant12 resulted in substantial lipid reduction in synthetic as well as real-world wastewater. Multiple linear regression analysis showed that lipid concentration and time were the most significant factors influencing lipid degradation. Bioaugmentation of real-world wastewater with Ant12 cells resulted in 84% removal of lipids in 72 h, while its crude lipase degraded 73.7% of lipids after 24 h. Thus, the specific rate of lipid degradation was higher for crude lipase (0.095/h) than the whole cell treatment (0.031/h). Economic analysis revealed that crude lipase production was much cheaper, faster and more eco-friendly than purified or partially purified lipase production, which justifies its use in wastewater treatment. The high activity of enzyme also implicates its application as a detergent additive. In our knowledge, it is the first study to establish A. johnsonii isolate from Antarctica for lipid-rich wastewater treatment.
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Affiliation(s)
- Vijay D Nimkande
- Health and Toxicity Cell, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Kannan Krishnamurthi
- Health and Toxicity Cell, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Amit Bafana
- Health and Toxicity Cell, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440020, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Ali S, Khan SA, Hamayun M, Lee IJ. The Recent Advances in the Utility of Microbial Lipases: A Review. Microorganisms 2023; 11:microorganisms11020510. [PMID: 36838475 PMCID: PMC9959473 DOI: 10.3390/microorganisms11020510] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 02/19/2023] Open
Abstract
Lipases are versatile biocatalysts and are used in different bioconversion reactions. Microbial lipases are currently attracting a great amount of attention due to the rapid advancement of enzyme technology and its practical application in a variety of industrial processes. The current review provides updated information on the different sources of microbial lipases, such as fungi, bacteria, and yeast, their classical and modern purification techniques, including precipitation and chromatographic separation, the immunopurification technique, the reversed micellar system, aqueous two-phase system (ATPS), aqueous two-phase flotation (ATPF), and the use of microbial lipases in different industries, e.g., the food, textile, leather, cosmetics, paper, and detergent industries. Furthermore, the article provides a critical analysis of lipase-producing microbes, distinguished from the previously published reviews, and illustrates the use of lipases in biosensors, biodiesel production, and tea processing, and their role in bioremediation and racemization.
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Affiliation(s)
- Sajid Ali
- Department of Horticulture and Life Science, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sumera Afzal Khan
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar 25120, Pakistan
| | - Muhammad Hamayun
- Department of Botany, Garden Campus, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
- Correspondence: (M.H.); (I.-J.L.)
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
- Correspondence: (M.H.); (I.-J.L.)
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Identification of hydrocarbon-degrading bacterial consortium isolated from the oil-contaminated muddy soil in Hanoi, Vietnam. POVOLZHSKIY JOURNAL OF ECOLOGY 2022. [DOI: 10.35885/1684-7318-2022-2-206-215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Bioremediation is a promising approach for treating oil-contaminated environments. The main objective of this study was to isolate bacteria capable of degrading hydrocarbons for application in oily wastewater treatment from oil-contaminated sites in Hanoi, Vietnam. The bacterial consortium studied was obtained from an oil-contaminated muddy soil sample enriched with crude oil mixed with diesel oil as a carbon source. The reconstituted consortium was able to degrade 93% of the oil content after 7 days of testing. A total of five pure bacterial strains were isolated on TSA agar from the complex microbial communities and were selected as potential candidates for oily sludge biodegradation processes. These isolates were identified based on their morphological and biochemical characteristics. By using molecular biology techniques, five hydrocarbons degrading bacteria were investigated and identified as Pseudomonas mendocina strain MD1 (OL687411.1), Pseudomonas hydrolytica strain MD2 (OL771695.1), Brucella intermedia strain MD3 (OL687412.1), Pseudomonas stutzeri strain MD4 (OL687413.1), and Stenotrophomonas nitritireducens strain MD5 (OL687414.1). The morphological and biochemical characterization of these bacteria showed that five of them were Gram-negative, rod-shaped, catalase positive, the ideal pH was neutral, and the optimum growth temperature was 30ºC in a culture medium with a salinity of 0.5%. These strains are capable of producing extracellular enzymes, such as lipase, amylase, cellulase, and protease.
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Blandón LM, Marín MA, Quintero M, Jutinico-Shubach LM, Montoya-Giraldo M, Santos-Acevedo M, Gómez-León J. Diversity of cultivable bacteria from deep-sea sediments of the Colombian Caribbean and their potential in bioremediation. Antonie van Leeuwenhoek 2022; 115:421-431. [PMID: 35066712 DOI: 10.1007/s10482-021-01706-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/28/2021] [Indexed: 11/26/2022]
Abstract
The diversity of deep-sea cultivable bacteria was studied in seven sediment samples of the Colombian Caribbean. Three hundred and fifty two marine bacteria were isolated according to its distinct morphological character on the solid media, then DNA sequences of the 16S rRNA were amplified to identify the isolated strains. The identified bacterial were arranged in three phylogenetic groups, Firmicutes, Proteobacteria, and Actinobacteria, with 34 different OTUs defined at ≥ 97% of similarity and 70 OTUs at ≥ 98.65%, being the 51% Firmicutes, 34% Proteobacteria and 15% Actinobacteria. Bacillus and Fictibacillus were the dominant genera in Firmicutes, Halomonas and Pseudomonas in Proteobacteria and Streptomyces and Micromonospora in Actinobacteria. In addition, the strains were tested for biosurfactants and lipolytic enzymes production, with 120 biosurfactant producing strains (mainly Firmicutes) and, 56 lipolytic enzymes producing strains (Proteobacteria). This report contributes to the understanding of the diversity of the marine deep-sea cultivable bacteria from the Colombian Caribbean, and their potential application as bioremediation agents.
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Affiliation(s)
- Lina Marcela Blandón
- Marine Bioprospecting Line, Marine and Coastal Research Institute "José Benito Vives de Andréis"- INVEMAR, Calle 25 No. 2-55, Playa Salguero, Santa Marta D.T.C.H., Colombia
| | - Mario Alejandro Marín
- Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas - UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Marynes Quintero
- Marine Bioprospecting Line, Marine and Coastal Research Institute "José Benito Vives de Andréis"- INVEMAR, Calle 25 No. 2-55, Playa Salguero, Santa Marta D.T.C.H., Colombia
| | - Laura Marcela Jutinico-Shubach
- Marine Bioprospecting Line, Marine and Coastal Research Institute "José Benito Vives de Andréis"- INVEMAR, Calle 25 No. 2-55, Playa Salguero, Santa Marta D.T.C.H., Colombia
| | - Manuela Montoya-Giraldo
- Marine Bioprospecting Line, Marine and Coastal Research Institute "José Benito Vives de Andréis"- INVEMAR, Calle 25 No. 2-55, Playa Salguero, Santa Marta D.T.C.H., Colombia
| | - Marisol Santos-Acevedo
- Marine Bioprospecting Line, Marine and Coastal Research Institute "José Benito Vives de Andréis"- INVEMAR, Calle 25 No. 2-55, Playa Salguero, Santa Marta D.T.C.H., Colombia
| | - Javier Gómez-León
- Marine Bioprospecting Line, Marine and Coastal Research Institute "José Benito Vives de Andréis"- INVEMAR, Calle 25 No. 2-55, Playa Salguero, Santa Marta D.T.C.H., Colombia.
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