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Pihen C, López-Malo A, Ramírez-Corona N. Effect of UV LED and Pulsed Light Treatments on Polyphenol Oxidase Activity and Escherichia coli Inactivation in Apple Juice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14294-14301. [PMID: 38874060 DOI: 10.1021/acs.jafc.3c08888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Enzymatic browning in fruits and vegetables, driven by polyphenol oxidase (PPO) activity, results in color changes and loss of bioactive compounds. Emerging technologies are being explored to prevent this browning and ensure microbial safety in foods. This study assessed the effectiveness of pulsed light (PL) and ultraviolet light-emitting diodes (UV-LED) in inhibiting PPO and inactivating Escherichia coli ATTC 25922 in fresh apple juice (Malus domestica var. Red Delicious). Both treatments' effects on juice quality, including bioactive compounds, color changes, and microbial inactivation, were examined. At similar doses, PL-treated samples (126 J/cm2) showed higher 2,2- diphenyl-1-picrylhydrazyl inhibition (9.5%) compared to UV-LED-treated samples (132 J/cm2), which showed 1.06%. For microbial inactivation, UV-LED achieved greater E. coli reduction (>3 log cycles) and less ascorbic acid degradation (9.4% ± 0.05) than PL. However, increasing PL doses to 176 J/cm2 resulted in more than 5 log cycles reduction of E. coli, showing a synergistic effect with the final temperature reached (55 °C). The Weibull model analyzed survival curves to evaluate inactivation kinetics. UV-LED was superior in preserving thermosensitive compounds, while PL excelled in deactivating more PPO and achieving maximal microbial inactivation more quickly.
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Affiliation(s)
- Christelle Pihen
- Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, ExHda Santa Catarina Mártir s/n, San Andrés Cholula, Puebla 72810, México
| | - Aurelio López-Malo
- Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, ExHda Santa Catarina Mártir s/n, San Andrés Cholula, Puebla 72810, México
| | - Nelly Ramírez-Corona
- Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, ExHda Santa Catarina Mártir s/n, San Andrés Cholula, Puebla 72810, México
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Jayachandran LE, O J S, Pulissery SK. Pulsed light processing of sugarcane juice: quality evaluation and microbial load assessment. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38923522 DOI: 10.1002/jsfa.13699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 05/15/2024] [Accepted: 06/09/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Freshly extracted sugarcane juice is an ideal substrate for microbial fermentation and browning reactions. The present study is the first report on the potential of pulsed light (PL) processing in improving microbial stability with the retention of major bioactive. PL processing at different levels of voltage (2.1-2.7 kV) and number of pulses (100-200) was explored. The present study aimed to investigate the impact of PL processing on the quality of sugarcane juice, bioactive composition and microbial load. RESULTS The microbial load, such as aerobic mesophiles, yeast and mold, and total coliform, was reduced to below 1 log colony-forming units mL-1 in juice samples subjected to intense PL treatment at 2.7 kV. The maximum value of the total color difference of the sugarcane juice was below 4.0, even at extreme levels of PL process parameters. In comparison with the unprocessed juice, the reduction in total phenols (Folin ciocalteu reagent assay) and the total antioxidant capacity (2,2-diphenyl-1-picrylhydrazyl free radical scavenging assay) was limited to 6% and 16.7%, respectively, when treated at 2.7 kV/200 pulses. The pH and total soluble solids of the juice remained unaffected in all the processed samples. Among the process parameters considered, the treatment voltage was found to significantly affect the quality parameters and microbial load. CONCLUSION PL processing at 2.1 kV/170 pulses gave an optimally processed juice with a microbial load below the permissible limit and desirability value of 0.77. The results suggest that the PL treatment is effective for enhancing the microbial stability and maintaining the bioactive components of the sugarcane juice. Furthermore, the outcomes from the present study are expected to pave the way for further in-depth investigation of the effect of PL treatment on the critical quality attributes and shelf life of sugarcane juice. The technology will be useful for adoption by different stakeholders, including manufacturers and retailers in the food processing sector. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Lakshmi E Jayachandran
- Department of Food Technology, Faculty of Fisheries Engineering, Kerala University of Fisheries and Ocean Studies, Panangad, India
| | - Sujayasree O J
- Post Harvest Specialist, World Vegetable Centre, South and Central Asia, Hyderabad, India
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Lou L, Takeoka G, Rubinsky B, Bilbao-Sainz C. Isochoric freezing to extend the shelf life of pomegranate juice. J Food Sci 2024; 89:1347-1360. [PMID: 38258913 DOI: 10.1111/1750-3841.16941] [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: 08/01/2023] [Revised: 11/21/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024]
Abstract
Pomegranate juice was treated by isochoric freezing (-15°C/130 MPa) for 24 h and then stored under three different conditions for up to 4 weeks: 4°C/0.1 MPa, 24°C/0.1 MPa, and -10°C/100 MPa. The juice microbiological stability and quality were compared to those using heat treatment at 95°C for 15 s followed by cold storage at 4°C. Heat-treated and isochoric frozen (IF) pomegranate juice stored under isochoric conditions showed no spoilage microorganisms after 4 weeks of storage. Also, IF juice stored at 4 or 24°C for 4 weeks had lower microbial loads than those in fresh pomegranate juice. IF juice stored under isochoric conditions showed greater color stability, antioxidant capacity, and nutrient retention (anthocyanins, ascorbic acid, and total phenolic compounds) than heat-treated juices stored at 4°C. IF juice stored at 4°C also showed greater anthocyanin and ascorbic acid contents compared with heat-treated juice. PRACTICAL APPLICATION: Isochoric freezing storage at -10°C can be used to preserve the quality properties of fresh pomegranate juice. Isochoric freezing at -15°C for 24 h can also be used as a pretreatment to extend the shelf life of refrigerated pomegranate juice since the applied pressures reached total inactivation levels of spoilage microorganisms.
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Affiliation(s)
- Leo Lou
- Department of Bioengineering, University of California, Berkeley, Berkeley, California, USA
| | - Gary Takeoka
- Western Regional Research Center, USDA, Albany, California, USA
| | - Boris Rubinsky
- Department of Bioengineering, University of California, Berkeley, Berkeley, California, USA
- Department of Mechanical Engineering, University of California, Berkeley, Berkeley, California, USA
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Comuzzo P, del Fresno JM, Voce S, Loira I, Morata A. Emerging biotechnologies and non-thermal technologies for winemaking in a context of global warming. Front Microbiol 2023; 14:1273940. [PMID: 37869658 PMCID: PMC10588647 DOI: 10.3389/fmicb.2023.1273940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/12/2023] [Indexed: 10/24/2023] Open
Abstract
In the current situation, wine areas are affected by several problems in a context of global warming: asymmetric maturities, pH increasing, high alcohol degree and flat wines with low freshness and poor aroma profile. The use of emerging biotechnologies allows to control or manage such problems. Emerging non-Saccharomyces as Lachancea thermotolerans are very useful for controlling pH by the formation of stable lactic acid from sugars with a slight concomitant alcohol reduction. Lower pH improves freshness increasing simultaneously microbiological stability. The use of Hanseniaspora spp. (specially H. vineae and H. opuntiae) or Metschnikowia pulcherrima promotes a better aroma complexity and improves wine sensory profile by the expression of a more complex metabolic pattern and the release of extracellular enzymes. Some of them are also compatible or synergic with the acidification by L. thermotolerans, and M. pulcherrima is an interesting biotool for reductive winemaking and bioprotection. The use of bioprotection is a powerful tool in this context, allowing oxidation control by oxygen depletion, the inhibition of some wild microorganisms, improving the implantation of some starters and limiting SO2. This can be complemented with the use of reductive yeast derivatives with high contents of reducing peptides and relevant compounds such as glutathione that also are interesting to reduce SO2. Finally, the use of emerging non-thermal technologies as Ultra High-Pressure Homogenization (UHPH) and Pulsed Light (PL) increases wine stability by microbial control and inactivation of oxidative enzymes, improving the implantation of emerging non-Saccharomyces and lowering SO2 additions. GRAPHICAL ABSTRACT.
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Affiliation(s)
- Piergiorgio Comuzzo
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali, Università degli Studi di Udine, Udine, Italy
| | | | - Sabrina Voce
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali, Università degli Studi di Udine, Udine, Italy
| | - Iris Loira
- enotecUPM, Universidad Politécnica de Madrid, Madrid, Spain
| | - Antonio Morata
- enotecUPM, Universidad Politécnica de Madrid, Madrid, Spain
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Munir MT, Mtimet N, Guillier L, Meurens F, Fravalo P, Federighi M, Kooh P. Physical Treatments to Control Clostridium botulinum Hazards in Food. Foods 2023; 12:foods12081580. [PMID: 37107375 PMCID: PMC10137509 DOI: 10.3390/foods12081580] [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: 03/11/2023] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Clostridium botulinum produces Botulinum neurotoxins (BoNTs), causing a rare but potentially deadly type of food poisoning called foodborne botulism. This review aims to provide information on the bacterium, spores, toxins, and botulisms, and describe the use of physical treatments (e.g., heating, pressure, irradiation, and other emerging technologies) to control this biological hazard in food. As the spores of this bacterium can resist various harsh environmental conditions, such as high temperatures, the thermal inactivation of 12-log of C. botulinum type A spores remains the standard for the commercial sterilization of food products. However, recent advancements in non-thermal physical treatments present an alternative to thermal sterilization with some limitations. Low- (<2 kGy) and medium (3-5 kGy)-dose ionizing irradiations are effective for a log reduction of vegetative cells and spores, respectively; however, very high doses (>10 kGy) are required to inactivate BoNTs. High-pressure processing (HPP), even at 1.5 GPa, does not inactivate the spores and requires heat combination to achieve its goal. Other emerging technologies have also shown some promise against vegetative cells and spores; however, their application to C. botulinum is very limited. Various factors related to bacteria (e.g., vegetative stage, growth conditions, injury status, type of bacteria, etc.) food matrix (e.g., compositions, state, pH, temperature, aw, etc.), and the method (e.g., power, energy, frequency, distance from the source to target, etc.) influence the efficacy of these treatments against C. botulinum. Moreover, the mode of action of different physical technologies is different, which provides an opportunity to combine different physical treatment methods in order to achieve additive and/or synergistic effects. This review is intended to guide the decision-makers, researchers, and educators in using physical treatments to control C. botulinum hazards.
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Affiliation(s)
- Muhammad Tanveer Munir
- EnvA, Unit of Hygiene, Quality and Food Safety, 94700 Maisons-Alfort, France
- Anses, Laboratory of Food Safety, 94700 Maisons-Alfort, France
| | - Narjes Mtimet
- EnvA, Unit of Hygiene, Quality and Food Safety, 94700 Maisons-Alfort, France
- Anses, Laboratory of Food Safety, 94700 Maisons-Alfort, France
| | | | - François Meurens
- INRAE, Oniris, BIOEPAR, 44307 Nantes, France
- Swine and Poultry Infectious Diseases Research Center, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, QC J2S 2M2, Canada
| | - Phillipe Fravalo
- Chaire Agroalimentaire du Cnam, Conservatoire des Arts et Métiers, EPN7, 22440 Ploufragan, France
| | - Michel Federighi
- EnvA, Unit of Hygiene, Quality and Food Safety, 94700 Maisons-Alfort, France
- Anses, Laboratory of Food Safety, 94700 Maisons-Alfort, France
| | - Pauline Kooh
- Anses, Unit UERALIM, 94700 Maisons-Alfort, France
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Wu X, Zhang Y, Zhong Q. Optimization of the Brewing Conditions of Shanlan Rice Wine and Sterilization by Thermal and Intense Pulse Light. Molecules 2023; 28:molecules28073183. [PMID: 37049943 PMCID: PMC10096255 DOI: 10.3390/molecules28073183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 04/07/2023] Open
Abstract
This study aimed to optimize the brewing conditions of Shanlan rice wine (SRW) and select a suitable sterilization method. The response surface method experiment was used to optimize the brewing process of SRW. LC-MS/MS (liquid chromatography–tandem mass spectrometry) and GC-MS (gas chromatography–mass spectrometry) were used to analyze the physicochemical components, free amino acids, and flavor metabolites of the thermal-sterilized SRW and the SRW sterilized by intense pulsed light (IPL), respectively. Results showed that the optimum fermentation conditions of SRW were as follows: fermentation temperature, 24.5 °C; Qiuqu amount (the traditional yeast used to produce SRW), 0.78%; water content, 119%. Compared with the physicochemical properties of the control, those of the SRWs separately treated with two sterilization methods were slightly affected. The 60 s pulse treatment reduced the content of bitter amino acids, maintained sweet amino acids and umami amino acids in SRW, and balanced the taste of SRW. After pasteurization, the ester content in wine decreased by 90%, and the alcohol content decreased to different degrees. IPL sterilization slightly affected the ester content and increased the alcohol content. Further analysis of the main flavor metabolites showed that 60 s pulse enhanced the important flavor-producing substances of SRW. In conclusion, 60 s pulse is suitable for sterilizing this wine.
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Affiliation(s)
- Xiaoqian Wu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
| | - Yunzhu Zhang
- School of Biomedical Engineering, Hainan University, Haikou 570228, China
| | - Qiuping Zhong
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
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Sahoo P, Chakraborty S. Influence of Pulsed Light, Ultrasound, and Series Treatments on Quality Attributes, Pectin Methyl Esterase, and Native Flora Inactivation in Sweet Orange Juice (Citrus sinensis L. Osbeck). FOOD BIOPROCESS TECH 2023. [DOI: 10.1007/s11947-023-03042-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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THE USE OF COLD PRESSING TECHNIQUE ASSOCIATED WITH EMERGING NON-THERMAL TECHNOLOGIES IN THE PRESERVATION OF BIOACTIVE COMPOUNDS IN TROPICAL FRUIT JUICES: AN OVERVIEW. Curr Opin Food Sci 2023. [DOI: 10.1016/j.cofs.2023.101005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Hassoun A, Prieto MA, Carpena M, Bouzembrak Y, Marvin HJ, Pallarés N, Barba FJ, Punia Bangar S, Chaudhary V, Ibrahim S, Bono G. Exploring the role of green and Industry 4.0 technologies in achieving sustainable development goals in food sectors. Food Res Int 2022; 162:112068. [DOI: 10.1016/j.foodres.2022.112068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/13/2022] [Accepted: 10/16/2022] [Indexed: 11/04/2022]
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Pulsed Light Processing in the Preservation of Juices and Fresh-Cut Fruits: A Review. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02891-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Obileke K, Onyeaka H, Miri T, Nwabor OF, Hart A, Al‐Sharify ZT, Al‐Najjar S, Anumudu C. Recent advances in radio frequency, pulsed light, and cold plasma technologies for food safety. J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.14138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- KeChrist Obileke
- Department of Physics, Renewable Energy Research Centre University of Fort Hare Alice Eastern Cape South Africa
| | - Helen Onyeaka
- School of Chemical Engineering University of Birmingham Birmingham UK
| | - Taghi Miri
- School of Chemical Engineering University of Birmingham Birmingham UK
| | - Ozioma Forstinus Nwabor
- Natural Products Research Centre of Excellence, Division of Biological Science Prince of Songkla University Hat Yai Songkhla Thailand
| | - Abarasi Hart
- Department of Chemical and Biological Engineering University of Sheffield Sheffield South Yorkshire UK
| | - Zainab T. Al‐Sharify
- School of Chemical Engineering University of Birmingham Birmingham UK
- Environmental Engineering Department Mustansiriyah University Baghdad Iraq
| | - Shahad Al‐Najjar
- Chemical Engineering Department Al‐Nahrian University Baghdad Iraq
| | - Christian Anumudu
- School of Chemical Engineering University of Birmingham Birmingham UK
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