1
|
Li P, Mei J, Xie J. The regulation of carbon dioxide on food microorganisms: A review. Food Res Int 2023; 172:113170. [PMID: 37689923 DOI: 10.1016/j.foodres.2023.113170] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 09/11/2023]
Abstract
This review presents a survey of two extremely important technologies about CO2 with the effectiveness of controlling microorganisms - atmospheric pressure CO2-based modified atmosphere packaging (MAP) and high pressure CO2 non-thermal pasteurization (HPCD). CO2-based MAP is effectively in delaying the lag and logarithmic phases of microorganisms by replacing the surrounding air, while HPCD achieved sterilization by subjecting food to either subcritical or supercritical CO2 for some time in a continuous, batch or semi-batch way. In addition to the advantages of healthy, eco-friendly, quality-preserving, effective characteristic, some challenges such as the high drip loss and packaging collapse associated with higher concentration of CO2, the fuzzy mechanisms of oxidative stress, the unproven specific metabolic pathways and biomarkers, etc., in CO2-based MAP, and the unavoidable extraction of bioactive compounds, the challenging application in solid foods with higher efficiency, the difficult balance between optimal sterilization and optimal food quality, etc., in HPCD still need more efforts to overcome. The action mechanism of CO2 on microorganisms, researches in recent years, problems and future perspectives are summarized. When dissolved in solution medium or cellular fluids, CO2 can form carbonic acid (H2CO3), and H2CO3 can further dissociate into bicarbonate ions (HCO3-), carbonate (CO32-) and hydrogen cations (H+) ionic species following series equilibria. The action mode of CO2 on microorganisms may be relevant to changes in intracellular pH, alteration of proteins, enzyme structure and function, alteration of cell membrane function and fluidity, and so on. Nevertheless, the effects of CO2 on microbial biofilms, energy metabolism, protein and gene expression also need to be explored more extensively and deeply to further understand the action mechanism of CO2 on microorganisms.
Collapse
Affiliation(s)
- Peiyun Li
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China; Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China.
| | - Jun Mei
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China; Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China.
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China; Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China; Collaborative Innovation Center of Seafood Deep Processing, Ministry of Education, Dalian 116034, China.
| |
Collapse
|
2
|
Lian Z, Yang D, Wang Y, Zhao L, Rao L, Liao X. Investigating the microbial inactivation effect of low temperature high pressure carbon dioxide and its application in frozen prawn (Penaeus vannamei). Food Control 2022; 145:109401. [PMID: 36186659 PMCID: PMC9512252 DOI: 10.1016/j.foodcont.2022.109401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 11/03/2022]
Abstract
During the pandemic of coronavirus disease 2019, the fact that frozen foods can carry the relevant virus raises concerns about the microbial safety of cold-chain foods. As a non-thermal processing technology, high pressure carbon dioxide (HPCD) is a potential method to reduce microbial load on cold-chain foods. In this study, we explored the microbial inactivation of low temperature (5-10 °C) HPCD (LT-HPCD) and evaluated its effect on the quality of prawn during freeze-chilled and frozen storage. LT-HPCD treatment at 6.5 MPa and 10 °C for 15 min could effectively inactivate E. coli (99.45%) and S. aureus (94.6%) suspended in 0.85% NaCl, SARS-CoV-2 Spike pseudovirus (>99%) and human coronavirus 229E (hCoV-229E) (>1-log virus tilter reduction) suspended in DMEM medium. The inactivation effect of LT-HPCD was weakened but still significant when the microorganisms were inoculated on the surface of food or package. LT-HPCD treatment at 6.5 MPa and 10 °C for 15 min achieved about 60% inactivation of total aerobic count while could maintain frozen state and quality of prawn. Moreover, LT-HPCD treated prawn exhibited significant slower microbial proliferation and no occurrence of melanosis compared with the untreated samples during chilled storage. A comprehensive quality investigation indicated that LT-HPCD treatment could maintain the color, texture and sensory of prawn during chilled or frozen storage. Consequently, LT-HPCD could improve the microbial safety of frozen prawn while maintaining its original quality, and could be a potential method for food industry to improve the microbial safety of cold-chain foods.
Collapse
|
3
|
Kobayashi F, Nemoto K, Narai-Kanayama A, Katayama K, Odake S. Relationship between intracellular protein denaturation and irreversible inactivation of Saccharomyces pastorianus by low-pressure carbon dioxide microbubbles. Biotechnol Prog 2022; 38:e3287. [PMID: 35815350 DOI: 10.1002/btpr.3287] [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: 02/24/2022] [Revised: 06/19/2022] [Accepted: 07/07/2022] [Indexed: 11/12/2022]
Abstract
To clarify the relationship between irreversible inactivation and intracellular protein denaturation of Saccharomyces pastorianus by low-pressure carbon dioxide microbubbles (CO2 MB) treatment, a storage test of S. pastorianus cells treated with CO2 MB was performed, and the effect on the intracellular protein was investigated. In the storage test, the S. pastorianus population, which decreased below the detection limit by CO2 MB treatment at a temperature of 45 and 50°C (MB45 and MB50), and thermal treatment at a temperature of 80°C (T80), remained undetectable during storage for 3 weeks at 25°C. However, 4.1- and 1.3-logs of the S. pastorianus populations, which survived after CO2 MB treatment at temperatures of 35 and 40°C (MB35 and MB40), increased gradually during storage for 3 weeks at 25°C. Insolubilization of intracellular proteins in S. pastorianus increased with increasing the temperature of CO2 MB treatment. Activity of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) identified as one of the insolubilized proteins increased at MB35 and MB40 than non-treatment but disappeared at MB45 and MB50, and T80. Therefore, it was revealed that S. pastorianus cells inactivated below the detection level by CO2 MB treatment did not regrow and that the denaturation of intracellular proteins of S. pastorianus was caused by CO2 MB and thermal treatments. Furthermore, it was suggested that denaturation of intracellular vital enzymes was an important factor for achieving irreversible inactivation of S. pastorianus by CO2 MB and thermal treatments.
Collapse
Affiliation(s)
- Fumiyuki Kobayashi
- Faculty of Applied Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Kaho Nemoto
- Faculty of Applied Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Asako Narai-Kanayama
- Faculty of Applied Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Kinya Katayama
- Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Sachiko Odake
- Faculty of Applied Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| |
Collapse
|
4
|
Effects of high-pressure carbon dioxide on microbial quality and germination of cereal grains and beans. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
5
|
Wason S, Verma T, Subbiah J. Validation of process technologies for enhancing the safety of low-moisture foods: A review. Compr Rev Food Sci Food Saf 2021; 20:4950-4992. [PMID: 34323364 DOI: 10.1111/1541-4337.12800] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/03/2021] [Accepted: 06/10/2021] [Indexed: 01/03/2023]
Abstract
The outbreaks linked to foodborne illnesses in low-moisture foods are frequently reported due to the occurrence of pathogenic microorganisms such as Salmonella Spp. Bacillus cereus, Clostridium spp., Cronobacter sakazakii, Escherichia coli, and Staphylococcus aureus. The ability of the pathogens to withstand the dry conditions and to develop resistance to heat is regarded as the major concern for the food industry dealing with low-moisture foods. In this regard, the present review is aimed to discuss the importance and the use of novel thermal and nonthermal technologies such as radiofrequency, steam pasteurization, plasma, and gaseous technologies for decontamination of foodborne pathogens in low-moisture foods and their microbial inactivation mechanisms. The review also summarizes the various sources of contamination and the factors influencing the survival and thermal resistance of pathogenic microorganisms in low-moisture foods. The literature survey indicated that the nonthermal techniques such as CO2 , high-pressure processing, and so on, may not offer effective microbial inactivation in low-moisture foods due to their insufficient moisture content. On the other hand, gases can penetrate deep inside the commodities and pores due to their higher diffusion properties and are regarded to have an advantage over thermal and other nonthermal processes. Further research is required to evaluate newer intervention strategies and combination treatments to enhance the microbial inactivation in low-moisture foods without significantly altering their organoleptic and nutritional quality.
Collapse
Affiliation(s)
- Surabhi Wason
- Department of Food Science, University of Arkansas System Division of Agriculture, Fayetteville, Arkansas, USA
| | - Tushar Verma
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Jeyamkondan Subbiah
- Department of Food Science, University of Arkansas System Division of Agriculture, Fayetteville, Arkansas, USA.,Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| |
Collapse
|
6
|
Buszewski B, Wrona O, Mayya RP, Zakharenko AM, Kalenik TK, Golokhvast KS, Piekoszewski W, Rafińska K. The potential application of supercritical CO 2 in microbial inactivation of food raw materials and products. Crit Rev Food Sci Nutr 2021; 62:6535-6548. [PMID: 33938772 DOI: 10.1080/10408398.2021.1902939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The purpose of this study was to review the possibility of using supercritical CO2 as a green and sustainable technology for microbial inactivation of raw material for further application in the food industry. The history of the development of supercritical CO2 microbial inactivation has been widely described in this article. The fundamental scientific part of the process like mechanism of bactericidal action of CO2 or inactivation of key enzymes were characterized in detail. In summary, this study provides an overview of the latest literature on the use of supercritical carbon dioxide in microbial inactivation of food raw materials and products.
Collapse
Affiliation(s)
- Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Poland.,Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Olga Wrona
- Łukasiewicz Research Network - New Chemical Synthesis Institute, Puławy, Poland
| | - Razgonova P Mayya
- N.I. Vavilov All-Russian Institute of Plant Genetic Resources, Sankt-Petersburg, Russia.,Far-Eastern Federal University, Vladivostok, Russia
| | - Alexander Mikhailovich Zakharenko
- N.I. Vavilov All-Russian Institute of Plant Genetic Resources, Sankt-Petersburg, Russia.,Far-Eastern Federal University, Vladivostok, Russia
| | | | - Kirill Sergeevich Golokhvast
- N.I. Vavilov All-Russian Institute of Plant Genetic Resources, Sankt-Petersburg, Russia.,Far-Eastern Federal University, Vladivostok, Russia.,Pacific Geographical Institute, Far-Eastern Branch of the Russian Academy of Sciences, Centralnaya, Presidium, Krasnoobsk, Russia.,Siberian Federal Scientific Centre of Agrobiotechnology, Centralnaya, Presidium, Krasnoobsk, Russia
| | - Wojciech Piekoszewski
- Far-Eastern Federal University, Vladivostok, Russia.,Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonien University, Gronostajowa, Kraków, Poland
| | - Katarzyna Rafińska
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Poland.,Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Toruń, Poland
| |
Collapse
|
7
|
Yan H, Cui Z, Manoli T, Zhang H. Recent advances in non-thermal disinfection technologies in the food industry. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2021. [DOI: 10.3136/fstr.27.695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Han Yan
- School of Food Science, Henan Institute of Science and Technology
| | - ZhenKun Cui
- School of Food Science, Henan Institute of Science and Technology
| | - Tatiana Manoli
- Faculty of Technology and Commodity Science of Food Products and Food Business, Odessa National Academy of Food Technologies
| | - Hao Zhang
- School of Food Science, Henan Institute of Science and Technology
| |
Collapse
|
8
|
Park JS, Ha JW. Ultrasound treatment combined with fumaric acid for inactivating food-borne pathogens in apple juice and its mechanisms. Food Microbiol 2019; 84:103277. [DOI: 10.1016/j.fm.2019.103277] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 05/08/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
|
9
|
Ribeiro N, Soares GC, Santos-Rosales V, Concheiro A, Alvarez-Lorenzo C, García-González CA, Oliveira AL. A new era for sterilization based on supercritical CO 2 technology. J Biomed Mater Res B Appl Biomater 2019; 108:399-428. [PMID: 31132221 DOI: 10.1002/jbm.b.34398] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 04/05/2019] [Accepted: 04/17/2019] [Indexed: 11/06/2022]
Abstract
The increasing complexity in morphology and composition of modern biomedical materials (e.g., soft and hard biological tissues, synthetic and natural-based scaffolds, technical textiles) and the high sensitivity to the processing environment requires the development of innovative but benign technologies for processing and treatment. This scenario is particularly applicable where current conventional techniques (steam/dry heat, ethylene oxide, and gamma irradiation) may not be able to preserve the functionality and integrity of the treated material. Sterilization using supercritical carbon dioxide emerges as a green and sustainable technology able to reach the sterility levels required by regulation without altering the original properties of even highly sensitive materials. In this review article, an updated survey of experimental protocols based on supercritical sterilization and of the efficacy results sorted by microbial strains and treated materials was carried out. The application of the supercritical sterilization process in materials used for biomedical, pharmaceutical, and food applications is assessed. The opportunity of supercritical sterilization of not only replace the above mentioned conventional techniques, but also of reach unmet needs for sterilization in highly sensitive materials (e.g., single-use medical devices, the next-generation biomaterials, and medical devices and graft tissues) is herein unveiled.
Collapse
Affiliation(s)
- Nilza Ribeiro
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Porto, Portugal
| | - Gonçalo C Soares
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Porto, Portugal
| | - Víctor Santos-Rosales
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana L Oliveira
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Porto, Portugal
| |
Collapse
|
10
|
Yu T, Chen Y. Effects of elevated carbon dioxide on environmental microbes and its mechanisms: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 655:865-879. [PMID: 30481713 DOI: 10.1016/j.scitotenv.2018.11.301] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/20/2018] [Accepted: 11/20/2018] [Indexed: 05/24/2023]
Abstract
Before the industrial revolution, the atmospheric CO2 concentration was 180-330 ppm; however, fossil-fuel combustion and forest destruction have led to increased atmospheric CO2 concentration. CO2 capture and storage is regarded as a promising strategy to prevent global warming and ocean acidification and to alleviate elevated atmospheric CO2 concentration, but the leakage of CO2 from storage system can lead to rapid acidification of the surrounding circumstance, which might cause negative influence on environmental microbes. The effects of elevated CO2 on microbes have been reported extensively, but the review regarding CO2 affecting different environmental microorganisms has never been done previously. Also, the mechanisms of CO2 affecting environmental microorganisms are usually contributed to the change of pH values, while the direct influences of CO2 on microorganisms were often neglected. This paper aimed to provide a systematic review of elevated CO2 affecting environmental microbes and its mechanisms. Firstly, the influences of elevated CO2 and potential leakage of CO2 from storage sites on community structures and diversity of different surrounding environmental microbes were assessed and compared. Secondly, the adverse impacts of CO2 on microbial growth, cell morphology and membranes, bacterial spores, and microbial metabolism were introduced. Then, based on biochemical principles and knowledge of microbiology and molecular biology, the fundamental mechanisms of the influences of carbon dioxide on environmental microbes were discussed from the aspects of enzyme activity, electron generation and transfer, and key gene and protein expressions. Finally, key questions relevant to the environmental effect of CO2 that need to be answered in the future were addressed.
Collapse
Affiliation(s)
- Tong Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| |
Collapse
|
11
|
Ersoy ZG, Dinc O, Cinar B, Gedik ST, Dimoglo A. Comparative evaluation of disinfection mechanism of sodium hypochlorite, chlorine dioxide and electroactivated water on Enterococcus faecalis. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.12.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
12
|
Soares GC, Learmonth DA, Vallejo MC, Davila SP, González P, Sousa RA, Oliveira AL. Supercritical CO 2 technology: The next standard sterilization technique? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:520-540. [PMID: 30889727 DOI: 10.1016/j.msec.2019.01.121] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/26/2018] [Accepted: 01/25/2019] [Indexed: 02/03/2023]
Abstract
Sterilization of implantable medical devices is of most importance to avoid surgery related complications such as infection and rejection. Advances in biotechnology fields, such as tissue engineering, have led to the development of more sophisticated and complex biomedical devices that are often composed of natural biomaterials. This complexity poses a challenge to current sterilization techniques which frequently damage materials upon sterilization. The need for an effective alternative has driven research on supercritical carbon dioxide (scCO2) technology. This technology is characterized by using low temperatures and for being inert and non-toxic. The herein presented paper reviews the most relevant studies over the last 15 years which cover the use of scCO2 for sterilization and in which effective terminal sterilization is reported. The major topics discussed here are: microorganisms effectively sterilized by scCO2, inactivation mechanisms, operating parameters, materials sterilized by scCO2 and major requirements for validation of such technique according to medical devices' standards.
Collapse
Affiliation(s)
- Gonçalo C Soares
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - David A Learmonth
- Stemmatters, Biotecnologia e Medicina Regenerativa SA, Parque de Ciência e Tecnologia Avepark, Zona Industrial da Gandra, Guimarães, Portugal
| | - Mariana C Vallejo
- Stemmatters, Biotecnologia e Medicina Regenerativa SA, Parque de Ciência e Tecnologia Avepark, Zona Industrial da Gandra, Guimarães, Portugal
| | - Sara Perez Davila
- New Materials Group, Applied Physics Department, IIS-GS, University of Vigo, Vigo, Spain
| | - Pío González
- New Materials Group, Applied Physics Department, IIS-GS, University of Vigo, Vigo, Spain
| | - Rui A Sousa
- Stemmatters, Biotecnologia e Medicina Regenerativa SA, Parque de Ciência e Tecnologia Avepark, Zona Industrial da Gandra, Guimarães, Portugal
| | - Ana L Oliveira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal.
| |
Collapse
|
13
|
Inactivation of Salmonella , Listeria monocytogenes and Escherichia coli O157:H7 inoculated on coriander by freeze-drying and supercritical CO 2 drying. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2018.02.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
14
|
Omar AM, Tengku Norsalwani T, Asmah M, Badrulhisham Z, Easa AM, Omar FM, Hossain MS, Zuknik M, Nik Norulaini N. Implementation of the supercritical carbon dioxide technology in oil palm fresh fruits bunch sterilization: A review. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.03.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
15
|
Kobayashi F, Odake S. Ethanol addition on inactivation of Saccharomyces pastorianus by a two-stage system with low-pressure carbon dioxide microbubbles can accelerate the cell membrane injury. Biotechnol Prog 2017; 34:282-286. [PMID: 29086507 DOI: 10.1002/btpr.2579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/24/2017] [Indexed: 11/12/2022]
Abstract
The effect of ethanol on the inactivation of Saccharomyces pastorianus by a two-stage system with low-pressure carbon dioxide microbubbles (two-stage MBCO2 ) was investigated. Zero and >5 log reductions of S. pastorianus populations suspended in physiological saline (PS) containing 0% and 10% ethanol, respectively, occurred by the two-stage MBCO2 at a mixing vessel pressure of 1 MPa and a heating coil temperature of 40°C. Conversely, the detected number of surviving S. pastorianus cells in PS containing 5% ethanol was higher in yeast and mold agar (YMA, an optimum agar) than YMA with 2.5% sodium chloride, followed by yeast nitrogen base agar (YNBA, a minimum agar). The fluorescence polarization of S. pastorianus in PS containing 5% and 10% ethanol increased similarly with exposure time in the heating coil of two-stage MBCO2 and was correlated with the surviving cell number measured in YNBA. The intracellular pH (pHin ) of S. pastorianus in PS containing 5% ethanol decreased linearly with exposure time in the heating coil of two-stage MBCO2 . Also, the pHin -lowering of S. pastorianus in PS containing 10% ethanol was drastically caused by two-stage MBCO2 at 1 min exposure time in the heating coil but then stayed constant until 5 min, agreeing with the inactivation efficiency. Therefore, ethanol in S. pastorianus suspension was suggested to accelerate the cell membrane injury caused by two-stage MBCO2 . © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 34:282-286, 2018.
Collapse
Affiliation(s)
- Fumiyuki Kobayashi
- Faculty of Applied Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, 180-8602, Japan
| | - Sachiko Odake
- Faculty of Applied Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, 180-8602, Japan
| |
Collapse
|
16
|
Dejsungkranont M, Chen HH, Sirisansaneeyakul S. Enhancement of antioxidant activity of C-phycocyanin of Spirulina powder treated with supercritical fluid carbon dioxide. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.anres.2017.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
17
|
Dang LTT, Imai T, Le TV, Nishihara S, Higuchi T, Nguyen MKD, Kanno A, Yamamoto K, Sekine M. Effects of pressure and pressure cycling on disinfection of Enterococcus sp. in seawater using pressurized carbon dioxide with different content rates. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2016; 51:930-937. [PMID: 27294417 DOI: 10.1080/10934529.2016.1191309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Interest is growing in a disinfection technique for water treatment without disinfection byproducts. This study presents the result of using a liquid-film-forming apparatus at less than 1.0 MPa for disinfection of seawater. The sensitivity of Enterococcus sp. (ATCC 202155) to the pressurized carbon dioxide (CO2) was examined under various conditions of pressure cycling, pressure, working volume ratio (WVR), and CO2 content rate. The key influences on frequency and magnitude of pressure cycling in enhancing Enterococcus sp. inactivation are elucidated. The results reveal strong correlation between pressure cycling and inactivation efficiency (P-value < 0.001). The outcome of linear regression model analysis suggests that the model can explain 93%, 85%, and 89% of the inactivation efficiency of (25% CO2 + 75% N2), (50% CO2 + 50% N2), and 100% CO2, respectively. The predicted value was fit with experimental results (p-value <0.05). Under identical treatment conditions (pressure = 0.9 MPa, ΔP = 0.14 MPa, 70% WVR, and 20 ± 1°C), treatment with pressurized CO2 (100% purity) resulted in complete inactivation 5.2 log of Enterococcus sp. after 70 cycles within 20 min. The Enterococcus sp. inactivation of pressurized CO2 followed first-order reaction kinetics. The smallest D-value (largest k-value) was induced by pressurized CO2 (100% purity) at 0.9 MPa, which was obtained at 3.85 min (0.5988 min(-1), R(2) ≥ 0.95). The findings could provide an effective method for enhanced bactericidal performance of pressurized CO2, to address recently emerging problems in water disinfection.
Collapse
Affiliation(s)
- Loc T T Dang
- a Graduate School of Science and Engineering, Yamaguchi University , Yamaguchi , Japan
- b Department of Environmental Science , Hue University of Sciences, Hue University , Hue , Vietnam
| | - Tsuyoshi Imai
- c Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi , Japan
| | - Tuan V Le
- b Department of Environmental Science , Hue University of Sciences, Hue University , Hue , Vietnam
| | - Satoshi Nishihara
- a Graduate School of Science and Engineering, Yamaguchi University , Yamaguchi , Japan
| | - Takaya Higuchi
- c Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi , Japan
| | - Mai K D Nguyen
- a Graduate School of Science and Engineering, Yamaguchi University , Yamaguchi , Japan
| | - Ariyo Kanno
- c Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi , Japan
| | - Koichi Yamamoto
- c Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi , Japan
| | - Masahiko Sekine
- c Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi , Japan
| |
Collapse
|
18
|
Li H, Xu Z, Zhao F, Wang Y, Liao X. Synergetic effects of high-pressure carbon dioxide and nisin on the inactivation of Escherichia coli and Staphylococcus aureus. INNOV FOOD SCI EMERG 2016. [DOI: 10.1016/j.ifset.2015.11.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
19
|
Vo HT, Imai T, Ho TT, Dang TLT, Hoang SA. Potential application of high pressure carbon dioxide in treated wastewater and water disinfection: Recent overview and further trends. J Environ Sci (China) 2015; 36:38-47. [PMID: 26456604 DOI: 10.1016/j.jes.2015.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 04/12/2015] [Accepted: 04/28/2015] [Indexed: 06/05/2023]
Abstract
Recently emerging disadvantages in conventional disinfection have heightened the need for finding a new solution. Developments in the use of high pressure carbon dioxide for food preservation and sterilization have led to a renewed interest in its applicability in wastewater treatment and water disinfection. Pressurized CO2 is one of the most investigated methods of antibacterial treatment and has been used extensively for decades to inhibit pathogens in dried food and liquid products. This study reviews the literature concerning the utility of CO2 as a disinfecting agent, and the pathogen inactivation mechanism of CO2 treatment is evaluated based on all available research. In this paper, it will be argued that the successful application and high effectiveness of CO2 treatment in liquid foods open a potential opportunity for its use in wastewater treatment and water disinfection. The findings from models with different operating conditions (pressure, temperature, microorganism, water content, media …) suggest that most microorganisms are successfully inhibited under CO2 treatment. It will also be shown that the bacterial deaths under CO2 treatment can be explained by many different mechanisms. Moreover, the findings in this study can help to address the recently emerging problems in water disinfection, such as disinfection by-products (resulting from chlorination or ozone treatment).
Collapse
Affiliation(s)
- Huy Thanh Vo
- Division of Urban Infrastructural Engineering, Mien trung University of Civil Engineering, Phu Yen 56000, Viet Nam.
| | - Tsuyoshi Imai
- Division of Environmental Science and Engineering, Yamaguchi University, Yamaguchi 755-8611, Japan
| | - Truc Thanh Ho
- Division of Urban Infrastructural Engineering, Mien trung University of Civil Engineering, Phu Yen 56000, Viet Nam
| | - Thanh-Loc Thi Dang
- Division of Environmental Science and Engineering, Yamaguchi University, Yamaguchi 755-8611, Japan
| | - Son Anh Hoang
- Division of Urban Infrastructural Engineering, Mien trung University of Civil Engineering, Phu Yen 56000, Viet Nam
| |
Collapse
|
20
|
Hossain MS, Nik Ab Rahman NN, Balakrishnan V, Alkarkhi AFM, Ahmad Rajion Z, Ab Kadir MO. Optimizing supercritical carbon dioxide in the inactivation of bacteria in clinical solid waste by using response surface methodology. WASTE MANAGEMENT (NEW YORK, N.Y.) 2015; 38:462-473. [PMID: 25636860 DOI: 10.1016/j.wasman.2015.01.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 12/04/2014] [Accepted: 01/02/2015] [Indexed: 06/04/2023]
Abstract
Clinical solid waste (CSW) poses a challenge to health care facilities because of the presence of pathogenic microorganisms, leading to concerns in the effective sterilization of the CSW for safe handling and elimination of infectious disease transmission. In the present study, supercritical carbon dioxide (SC-CO2) was applied to inactivate gram-positive Staphylococcus aureus, Enterococcus faecalis, Bacillus subtilis, and gram-negative Escherichia coli in CSW. The effects of SC-CO2 sterilization parameters such as pressure, temperature, and time were investigated and optimized by response surface methodology (RSM). Results showed that the data were adequately fitted into the second-order polynomial model. The linear quadratic terms and interaction between pressure and temperature had significant effects on the inactivation of S. aureus, E. coli, E. faecalis, and B. subtilis in CSW. Optimum conditions for the complete inactivation of bacteria within the experimental range of the studied variables were 20 MPa, 60 °C, and 60 min. The SC-CO2-treated bacterial cells, observed under a scanning electron microscope, showed morphological changes, including cell breakage and dislodged cell walls, which could have caused the inactivation. This espouses the inference that SC-CO2 exerts strong inactivating effects on the bacteria present in CSW, and has the potential to be used in CSW management for the safe handling and recycling-reuse of CSW materials.
Collapse
Affiliation(s)
- Md Sohrab Hossain
- Department of Environmental Technology, School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | | | - Venugopal Balakrishnan
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Abbas F M Alkarkhi
- Department of Environmental Technology, School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Zainul Ahmad Rajion
- School of Dental Science, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Mohd Omar Ab Kadir
- Department of Environmental Technology, School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia.
| |
Collapse
|
21
|
Nonthermal Inactivation ofCronobacter sakazakiiin Infant Formula Milk: A Review. Crit Rev Food Sci Nutr 2015; 56:1620-9. [DOI: 10.1080/10408398.2013.781991] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
22
|
Comparison of a two-stage system with low pressure carbon dioxide microbubbles and heat treatment on the inactivation of Saccharomyces pastorianus cells. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.04.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
23
|
Inactivation of Escherichia coli O157:H7 by high pressure carbon dioxide combined with nisin in physiological saline, phosphate-buffered saline and carrot juice. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.01.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
24
|
Hossain MS, Balakrishnan V, Rahman NNNA, Rajion ZA, Kadir MOA. Modeling the inactivation of Staphylococcus aureus and Serratia marcescens in clinical solid waste using supercritical fluid carbon dioxide. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2013.08.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
25
|
Park HS, Choi HJ, Kim MD, Kim KH. Addition of ethanol to supercritical carbon dioxide enhances the inactivation of bacterial spores in the biofilm of Bacillus cereus. Int J Food Microbiol 2013; 166:207-12. [DOI: 10.1016/j.ijfoodmicro.2013.07.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 07/15/2013] [Accepted: 07/15/2013] [Indexed: 10/26/2022]
|
26
|
Li J, Wang A, Zhu F, Xu R, Hu XS. Membrane Damage Induced by Supercritical Carbon Dioxide in Rhodotorula mucilaginosa. Indian J Microbiol 2013; 53:352-8. [PMID: 24426136 DOI: 10.1007/s12088-013-0373-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 02/04/2013] [Indexed: 10/27/2022] Open
Abstract
To clarify the mechanism of microbial inactivation by supercritical carbon dioxide (SCCO2), membrane damage of Rhodotorula mucilaginosa was investigated within specific pressure (10 Mpa), temperature (37 °C), and treatment time (10-70 min) ranges, including cell morphological structure, membrane permeability and fluidity. SEM and TEM observations showed morphological changes in the cell envelope and intracellular organization after SCCO2 treatment. Increase of membrane permeability was measured as increased uptake of the trypan blue dye with microscopy, and leakage of intracellular substances such as UV-absorbing materials and ions by determining the change of protein and electrical conductivity. The SCCO2 mediated reduction in CFU ml(-1) was 0.5-1 log higher at 37 °C and 10 MPa for 60 min in Rose Bengal Medium containing 4 % sodium than a similar treatment in Rose Bengal Medium. Membrane fluidity analyzed by fluorescence polarization method using 1,6-diphenyl-1,3,5-hexatriene showed that the florescence polarization and florescence anisotropy of the SCCO2-treated cells were increased slightly and gently compared with the untreated cells. The correlation between membrane damage and death of cells under SCCO2 was clear, and the membrane damage was a key factor induced the inactivation of cells.
Collapse
Affiliation(s)
- Jun Li
- College of Food Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066004 China
| | - Aiying Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083 China
| | - Fengmei Zhu
- College of Food Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066004 China
| | - Rui Xu
- College of Food Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066004 China
| | - Xiao Song Hu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083 China
| |
Collapse
|
27
|
Park HS, Choi HJ, Kim KH. Effect of Supercritical CO2
Modified with Water Cosolvent on the Sterilization of Fungal Spore-Contaminated Barley Seeds and the Germination of Barley Seeds. J Food Saf 2013. [DOI: 10.1111/jfs.12027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hyong Seok Park
- School of Life Sciences and Biotechnology; Korea University; Seoul 136-713 Republic of Korea
| | - Hee Jung Choi
- Department of Internal Medicine, Division of Infectious Diseases; Ewha Womans University School of Medicine; Seoul 158-710 Republic of Korea
| | - Kyoung Heon Kim
- School of Life Sciences and Biotechnology; Korea University; Seoul 136-713 Republic of Korea
| |
Collapse
|
28
|
Čolnik M, Primožič M, Knez Ž, Habulin M. Use of supercritical carbon dioxide for proteins and alcohol dehydrogenase release from yeast Saccharomyces cerevisiae. J Supercrit Fluids 2012. [DOI: 10.1016/j.supflu.2012.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
29
|
Li H, Deng L, Chen Y, Liao X. Inactivation, morphology, interior structure and enzymatic activity of high pressure CO2-treated Saccharomyces cerevisiae. INNOV FOOD SCI EMERG 2012. [DOI: 10.1016/j.ifset.2011.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
30
|
Muñoz-Cuevas M, Metris A, Baranyi J. Predictive modelling of Salmonella: From cell cycle measurements to e-models. Food Res Int 2012. [DOI: 10.1016/j.foodres.2011.04.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
31
|
Ortuño C, Martínez-Pastor MT, Mulet A, Benedito J. Supercritical carbon dioxide inactivation of Escherichia coli and Saccharomyces cerevisiae in different growth stages. J Supercrit Fluids 2012. [DOI: 10.1016/j.supflu.2011.12.022] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
32
|
Mun S, Kim J, Ahn SJ, Lee YW, Yoon J. Bactericidal effect of supercritical N2O on Staphylococcus aureus and Escherichia coli. Int J Food Microbiol 2012; 153:15-20. [DOI: 10.1016/j.ijfoodmicro.2011.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 10/11/2011] [Accepted: 10/13/2011] [Indexed: 10/16/2022]
|
33
|
|
34
|
Park HS, Choi HJ, Kim KH. Inactivation of Alternaria brassicicola spores by supercritical carbon dioxide with ethanol entrainer. J Microbiol Methods 2012; 88:185-7. [DOI: 10.1016/j.mimet.2011.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2011] [Revised: 10/21/2011] [Accepted: 11/01/2011] [Indexed: 10/15/2022]
|
35
|
BAE YUNYOUNG, CHOI YOUNGMIN, KIM MINJUNG, KIM KYOUNGHEON, KIM BYOUNGCHUL, RHEE MINSUK. APPLICATION OF SUPERCRITICAL CARBON DIOXIDE FOR MICROORGANISM REDUCTIONS IN FRESH PORK. J Food Saf 2011. [DOI: 10.1111/j.1745-4565.2011.00328.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
36
|
Hossain MS, Santhanam A, Nik Norulaini NA, Omar AKM. Clinical solid waste management practices and its impact on human health and environment--A review. WASTE MANAGEMENT (NEW YORK, N.Y.) 2011; 31:754-66. [PMID: 21186116 DOI: 10.1016/j.wasman.2010.11.008] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 11/01/2010] [Accepted: 11/05/2010] [Indexed: 05/04/2023]
Abstract
The management of clinical solid waste (CSW) continues to be a major challenge, particularly, in most healthcare facilities of the developing world. Poor conduct and inappropriate disposal methods exercised during handling and disposal of CSW is increasing significant health hazards and environmental pollution due to the infectious nature of the waste. This article summarises a literature review into existing CSW management practices in the healthcare centers. The information gathered in this paper has been derived from the desk study of open literature survey. Numerous researches have been conducted on the management of CSW. Although, significant steps have been taken on matters related to safe handling and disposal of the clinical waste, but improper management practice is evident from the point of initial collection to the final disposal. In most cases, the main reasons of the mismanagement of CSW are the lack of appropriate legislation, lack of specialized clinical staffs, lack of awareness and effective control. Furthermore, most of the healthcare centers of the developing world have faced financial difficulties and therefore looking for cost effective disposal methods of clinical waste. This paper emphasizes to continue the recycle-reuse program of CSW materials after sterilization by using supercritical fluid carbon dioxide (SF-CO2) sterilization technology at the point of initial collection. Emphasis is on the priority to inactivate the infectious micro-organisms in CSW. In that case, waste would not pose any threat to healthcare workers. The recycling-reuse program would be carried out successfully with the non-specialized clinical staffs. Therefore, the adoption of SF-CO2 sterilization technology in management of clinical solid waste can reduce exposure to infectious waste, decrease labor, lower costs, and yield better compliance with regulatory. Thus healthcare facilities can both save money and provide a safe environment for patients, healthcare staffs and clinical staffs.
Collapse
Affiliation(s)
- Md Sohrab Hossain
- Department of Environmental Technology, School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | | | | | | |
Collapse
|
37
|
Mendes GC, Brandão TRS, Silva CLM. Modeling the inactivation of Bacillus subtilis spores by ethylene oxide processing. J Ind Microbiol Biotechnol 2011; 38:1535-43. [DOI: 10.1007/s10295-011-0942-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Accepted: 01/11/2011] [Indexed: 11/28/2022]
|
38
|
Mun S, Hahn JS, Lee YW, Yoon J. Inactivation behavior of Pseudomonas aeruginosa by supercritical N2O compared to supercritical CO2. Int J Food Microbiol 2011; 144:372-8. [PMID: 21078533 DOI: 10.1016/j.ijfoodmicro.2010.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 10/14/2010] [Accepted: 10/19/2010] [Indexed: 10/18/2022]
Affiliation(s)
- Sungmin Mun
- World Class University (WCU) program of Chemical Convergence for Energy & Environment (C₂E₂), College of Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea
| | | | | | | |
Collapse
|
39
|
Kim SA, Kim OY, Rhee MS. Direct application of supercritical carbon dioxide for the reduction of Cronobacter spp. (Enterobacter sakazakii) in end products of dehydrated powdered infant formula. J Dairy Sci 2010; 93:1854-60. [PMID: 20412898 DOI: 10.3168/jds.2009-2738] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Accepted: 01/13/2010] [Indexed: 11/19/2022]
Abstract
The objective of this study was to develop a viable new method for inactivation of Cronobacter spp. that could be applied directly to dehydrated powdered infant formula (PIF) using supercritical carbon dioxide (SC-CO(2)). Samples inoculated with Cronobacter spp. were subjected to SC-CO(2) treatment under various conditions (temperature: 63, 68, and 73 degrees C; pressure: 15, 20, and 25 MPa; time: 10, 20, and 30 min). The survival of Cronobacter spp. was assayed, as were any changes in the quality of the treated PIF. Inactivation of Cronobacter spp. by SC-CO(2) was enhanced as temperature and pressure conditions increased (>6.32 log(10) cfu/g). In a validation assay using low-level inoculation (3.21 log(10) cfu/g), treatment at 73 degrees C and 15 MPa for 30 min, 20 MPa for 20 and 30 min, or 25 MPa for 20 and 30 min reduced Cronobacter spp. to undetectable levels, with no recovery of cell viability. There was no significant change in water activity, pH, and color of the treated PIF. Overall, the optimum conditions for elimination of Cronobacter spp. were determined to be 73 degrees C and 20 MPa for 20 min. These parameters for effective SC-CO(2) treatment are feasibly applicable to end product of dehydrated PIF. The results of our study may contribute to the development of an efficient method for improving the microbiological safety of PIF.
Collapse
Affiliation(s)
- S A Kim
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, South Korea
| | | | | |
Collapse
|
40
|
Cho M, Kim J, Kim JY, Yoon J, Kim JH. Mechanisms of Escherichia coli inactivation by several disinfectants. WATER RESEARCH 2010; 44:3410-8. [PMID: 20427068 DOI: 10.1016/j.watres.2010.03.017] [Citation(s) in RCA: 163] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 03/04/2010] [Accepted: 03/14/2010] [Indexed: 05/12/2023]
Abstract
The objective of this study was to elucidate dominant mechanisms of inactivation, i.e. surface attack versus intracellular attack, during application of common water disinfectants such as ozone, chlorine dioxide, free chlorine and UV irradiation. Escherichia coli was used as a representative microorganism. During cell inactivation, protein release, lipid peroxidation, cell permeability change, damage in intracellular enzyme and morphological change were comparatively examined. For the same level of cell inactivation by chemical disinfectants, cell surface damage was more pronounced with strong oxidant such as ozone while damage in inner cell components was more apparent with weaker oxidant such as free chlorine. Chlorine dioxide showed the inactivation mechanism between these two disinfectants. The results suggest that the mechanism of cell inactivation is primarily related to the reactivity of chemical disinfectant. In contrast to chemical disinfectants, cell inactivation by UV occurred without any changes measurable with the methods employed. Understanding the differences in inactivation mechanisms presented herein is critical to identify rate-limiting steps involved in the inactivation process as well as to develop more effective disinfection strategies.
Collapse
Affiliation(s)
- Min Cho
- School of Civil and Environmental Engineering, Georgia Institute of Technology, 200 Bobby Dodd Way, Atlanta, GA 30332-0373, USA
| | | | | | | | | |
Collapse
|
41
|
Wimmer Z, Zarevúcka M. A review on the effects of supercritical carbon dioxide on enzyme activity. Int J Mol Sci 2010; 11:233-253. [PMID: 20162013 PMCID: PMC2821001 DOI: 10.3390/ijms11010233] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Revised: 01/07/2010] [Accepted: 01/09/2010] [Indexed: 12/05/2022] Open
Abstract
Different types of enzymes such as lipases, several phosphatases, dehydrogenases, oxidases, amylases and others are well suited for the reactions in SC-CO2. The stability and the activity of enzymes exposed to carbon dioxide under high pressure depend on enzyme species, water content in the solution and on the pressure and temperature of the reaction system. The three-dimensional structure of enzymes may be significantly altered under extreme conditions, causing their denaturation and consequent loss of activity. If the conditions are less adverse, the protein structure may be largely retained. Minor structural changes may induce an alternative active protein state with altered enzyme activity, specificity and stability.
Collapse
Affiliation(s)
- Zdeněk Wimmer
- Institute of Experimental Botany AS CR, Isotope Laboratory, Vídeňská 1083, 142 20 Prague 4–Krč, Czech Republic; E-Mail:
| | - Marie Zarevúcka
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo náměstí 2, 166 10 Prague 6–Dejvice, Czech Republic
- Author to whom correspondence should be addressed; E-Mail:
; Tel.: +420-220-183-281; Fax: +420-220-183-582
| |
Collapse
|
42
|
Garcia-Gonzalez L, Geeraerd AH, Mast J, Briers Y, Elst K, Van Ginneken L, Van Impe JF, Devlieghere F. Membrane permeabilization and cellular death of Escherichia coli, Listeria monocytogenes and Saccharomyces cerevisiae as induced by high pressure carbon dioxide treatment. Food Microbiol 2009; 27:541-9. [PMID: 20417405 DOI: 10.1016/j.fm.2009.12.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2009] [Revised: 12/10/2009] [Accepted: 12/14/2009] [Indexed: 11/25/2022]
Abstract
In this study, the relationship between (irreversible) membrane permeabilization and loss of viability in Escherichia coli, Listeria monocytogenes and Saccharomyces cerevisiae cells subjected to high pressure carbon dioxide (HPCD) treatment at different process conditions including temperature (35-45 degrees C), pressure (10.5-21.0 MPa) and treatment time (0-60 min) was examined. Loss of membrane integrity was measured as increased uptake of the fluorescent dye propidium iodide (PI) with spectrofluorometry, while cell inactivation was determined by viable cell count. Uptake of PI by all three strains indicated that membrane damage is involved in the mechanism of HPCD inactivation of vegetative cells. The extent of membrane permeabilization and cellular death increased with the severity of the HPCD treatment. The resistance of the three tested organisms to HPCD treatment changed as a function of treatment time, leading to significant tailing in the survival curves, and was dependent on pressure and temperature. The results in this study also indicated a HPCD-induced damage on nucleic acids during cell inactivation. Transmission electron microscopy showed that HPCD treatment had a profound effect on the intracellular organization of the micro-organisms and influenced the permeability of the bacterial cells by introducing pores in the cell wall.
Collapse
Affiliation(s)
- L Garcia-Gonzalez
- Business Unit Separation and Conversion Technology, Flemish Institute for Technological Research (VITO), B-2400 Mol, Belgium
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Liao H, Kong X, Zhang Z, Liao X, Hu X. Modeling the inactivation of Salmonella typhimurium by dense phase carbon dioxide in carrot juice. Food Microbiol 2009; 27:94-100. [PMID: 19913698 DOI: 10.1016/j.fm.2009.09.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 08/15/2009] [Accepted: 09/02/2009] [Indexed: 10/20/2022]
Abstract
The inactivation of Salmonella typhimurium inoculated into acidified carrot juice subjected to dense phase carbon dioxide (DPCD) was investigated. The pressures in the study were 10, 20 and 30 MPa, the temperatures were 32, 37 and 42 degrees C, and the treatment time was 5-90 min. The inactivation effect of DPCD was enhanced by increasing pressure and temperature. The sigmoid inactivation curves were characterized with the lag phase, exponential inactivation phase, and resistant phase. The inactivation curves were fitted to the modified Gompertz equation and the modified Logistic equation, the modified Gompertz equation was superior since its lowest residual sum of squares (RSS) was lower although there was no significant difference of goodness-of-fit between both models as indicated by F-test. The lambda (the duration of the lag phase) and t(4-D) (the time necessary to achieve 4-log cycles reduction) decreased with increasing pressure or temperature. The k(dm) (the maximum specific value of the inactivation rate, min(-1)) increased with increasing temperatures, and decreased with increasing pressures. The activation energy (Ea) and the activation volume (Va) necessary for inactivating S. typhimurium by DPCD were 19.06-29.39 kJ mol(-1) and 18.89-58.27 cm(3) mol(-1).
Collapse
Affiliation(s)
- Hongmei Liao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | | | | | | | | |
Collapse
|
44
|
Inactivation of Alicyclobacillus acidoterrestris spores in apple juice by supercritical carbon dioxide. Int J Food Microbiol 2009; 136:95-100. [PMID: 19819038 DOI: 10.1016/j.ijfoodmicro.2009.09.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 09/09/2009] [Accepted: 09/15/2009] [Indexed: 11/24/2022]
Abstract
We investigated the lethal effect of supercritical carbon dioxide (SC-CO(2); temperature: 65, 70 degrees C, pressure: 80, 100, 120 bar, time: 10-40 min) on Alicyclobacillus acidoterrestris spores (10(6)-10(7)spores/ml) suspended in apple juice. A. acidoterrestris spores were completely inactivated by SC-CO(2) to undetectable levels in above 65 degrees C, 100 bar for 40 min and 70 degrees C, 80 bar for 30 min. The SC-CO(2) did not affect (p>0.05) the pH and Brix of apple juice. In electron microscopic observations, the surface and internal morphological changes and extraction of intracellular materials of the treated spores were observed. Our results indicate that SC-CO(2) can effectively kill A. acidoterrestris spores in apple juice with no changes to the quality of the juice and also provides a complementary understanding of inactivation action of SC-CO(2).
Collapse
|
45
|
Kim SR, Kim HT, Park HJ, Kim S, Choi HJ, Hwang GS, Yi JH, Ryu DH, Kim KH. Fatty acid profiling and proteomic analysis of Salmonella enterica serotype Typhimurium inactivated with supercritical carbon dioxide. Int J Food Microbiol 2009; 134:190-5. [DOI: 10.1016/j.ijfoodmicro.2009.06.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Revised: 05/30/2009] [Accepted: 06/12/2009] [Indexed: 11/12/2022]
|
46
|
Shin MH, Cheong NY, Lee JH, Kim KH. Transglucosylation of caffeic acid by a recombinant sucrose phosphorylase in aqueous buffer and aqueous-supercritical CO2 media. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.01.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
47
|
Choi Y, Bae Y, Kim K, Kim B, Rhee M. Effects of supercritical carbon dioxide treatment against generic Escherichia coli, Listeria monocytogenes, Salmonella typhimurium, and E. coli O157:H7 in marinades and marinated pork. Meat Sci 2009; 82:419-24. [DOI: 10.1016/j.meatsci.2009.02.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 02/16/2009] [Accepted: 02/17/2009] [Indexed: 10/21/2022]
|
48
|
Kim HT, Choi HJ, Kim KH. Flow cytometric analysis of Salmonella enterica serotype Typhimurium inactivated with supercritical carbon dioxide. J Microbiol Methods 2009; 78:155-60. [DOI: 10.1016/j.mimet.2009.05.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2009] [Revised: 05/11/2009] [Accepted: 05/12/2009] [Indexed: 11/27/2022]
|
49
|
Mun S, Jeong JS, Kim J, Lee YW, Yoon J. Inactivation of Pseudomonas aeruginosa biofilm by dense phase carbon dioxide. BIOFOULING 2009; 25:473-479. [PMID: 19360484 DOI: 10.1080/08927010902874876] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Dense phase carbon dioxide (DPCD) is one of the most promising techniques available to control microorganisms as a non-thermal disinfection method. However, no study on the efficiency of biofilm disinfection using DPCD has been reported. The efficiency of DPCD in inactivating Pseudomonas aeruginosa biofilm, which is known to have high antimicrobial resistance, was thus investigated. P. aeruginosa biofilm, which was not immersed in water but was completely wet, was found to be more effectively inactivated by DPCD treatment, achieving a 6-log reduction within 7 min. The inactivation efficiency increased modestly with increasing pressure and temperature. This study also reports that the water-unimmersed condition is one of the most important operating parameters in achieving efficient biofilm control by DPCD treatment. In addition, observations by confocal laser scanning microscopy revealed that DPCD treatment not only inactivated biofilm cells on the glass coupons but also caused detachment of the biofilm following weakening of its structure as a result of the DPCD treatment; this is an added benefit of DPCD treatment.
Collapse
Affiliation(s)
- Sungmin Mun
- School of Chemical and Biological Engineering, College of Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | | | | | | | | |
Collapse
|
50
|
Kim SR, Park HJ, Yim DS, Kim HT, Choi IG, Kim KH. Analysis of survival rates and cellular fatty acid profiles of Listeria monocytogenes treated with supercritical carbon dioxide under the influence of cosolvents. J Microbiol Methods 2008; 75:47-54. [DOI: 10.1016/j.mimet.2008.04.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2008] [Revised: 04/28/2008] [Accepted: 04/28/2008] [Indexed: 11/25/2022]
|