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Basak S, Parab P, Chakraborty S. Variations in quality attributes of pulsed light-treated table grape juice during refrigerated storage (4°C) and ambient conditions (25°C). J Food Sci 2024. [PMID: 39126692 DOI: 10.1111/1750-3841.17265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/24/2024] [Accepted: 07/07/2024] [Indexed: 08/12/2024]
Abstract
Pulsed light (PL) pasteurization is being explored as a substitute for the conventional thermal pasteurization of juices in recent times due to better retention of nutrients and overall quality. However, the long-term stability of the PL-pasteurized juice must be investigated to promote its application by the industry. The effect of PL treatment (effective fluence of 1.15 J·cm-2) and thermal treatment (90°C for 60 s) on microbial quality, enzyme activity, bioactive compounds, sensory acceptance, and color profile of table grape juice during storage at 4 and 25°C was investigated in this study. The PL pasteurization enhanced the microbial shelf-life of the juice (<6 log10cfu·mL-1) from 5 to 35 days at 4°C. The PL and thermally-pasteurized juice demonstrated a shelf-life of only 10 days when stored at 25°C. The total soluble solids and titratable acidity did not alter significantly throughout the storage period. The peroxidase, polyphenol oxidase, and pectin methylesterase activities were below 10% for the PL and thermally-treated beverage when stored at 4°C. The sensory acceptability of the PL-pasteurized juice after 35 days of refrigerated storage (6.9 ± 0.3) was close to the untreated juice (7.2 ± 0.3) and greater than thermally-treated juice (6.2 ± 0.2). After the 35th day of storage at 4°C, PL-treated grape juice retained 55%, 12%, and 15.3% more phenolics, flavonoids, and antioxidant capacity, respectively, than the thermally-pasteurized juice. Hence, PL pasteurization can effectively prolong the shelf-life of table grape juice while achieving microbial and enzymatic stability, along with high sensory and nutritional appeal. PRACTICAL APPLICATION: Exploring non-thermal methods like pulsed light (PL) pasteurization as a substitute for conventional thermal methods is gaining recognition for its ability to retain nutrients and improve overall juice quality. However, the industry's adoption depends on understanding the shelf-stability of PL-pasteurized juice. This study specifically investigates the practical applications of PL treatment in comparison with conventional thermal treatment in enhancing microbial safety and enzymatic stability in table grape juice. The findings contribute insights into optimizing the shelf life of table grape juice and preserving its quality, supported by microbial, enzymatic, and sensory evaluations.
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Affiliation(s)
- Somnath Basak
- Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai, India
| | - Pooja Parab
- Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai, India
| | - Snehasis Chakraborty
- Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai, India
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Gabrić D, Kurek M, Ščetar M, Brnčić M, Galić K. Effect of Non-Thermal Food Processing Techniques on Selected Packaging Materials. Polymers (Basel) 2022; 14:polym14235069. [PMID: 36501462 PMCID: PMC9741052 DOI: 10.3390/polym14235069] [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: 10/24/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/24/2022] Open
Abstract
In the last decade both scientific and industrial community focuses on food with the highest nutritional and organoleptic quality, together with appropriate safety. Accordingly, strong efforts have been made in finding appropriate emerging technologies for food processing and packaging. Parallel to this, an enormous effort is also made to decrease the negative impact of synthetic polymers not only on food products (migration issues) but on the entire environment (pollution). The science of packaging is also subjected to changes, resulting in development of novel biomaterials, biodegradable or not, with active, smart, edible and intelligent properties. Combining non-thermal processing with new materials opens completely new interdisciplinary area of interest for both food and material scientists. The aim of this review article is to give an insight in the latest research data about synergies between non-thermal processing technologies and selected packaging materials/concepts.
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Ren M, Ren Z, Chen L, Zhou C, Okonkwo CE, Mujumdar AS. Comparison of ultrasound and ethanol pretreatments before catalytic infrared drying on physicochemical properties, drying, and contamination of Chinese ginger (Zingiber officinale Roscoe). Food Chem 2022; 386:132759. [PMID: 35339079 DOI: 10.1016/j.foodchem.2022.132759] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 03/12/2022] [Accepted: 03/19/2022] [Indexed: 11/15/2022]
Abstract
This study aimed to investigate the effects of different pretreatment methods on the drying process and quality of catalytic infrared dried ginger slices, particularly the safety quality. Four different pretreatments strategies were used: sample submerged in distilled water, water + US pretreatment, ethanol pretreatment, and ethanol + US pretreatment. The results showed that all pretreatments reduced drying time, and sample pretreatment by ethanol + US had the highest drying efficiency, hardness, highest total phenolic content, and total flavonoid content retention. However, these pretreatments slightly decreased the rehydration ratio and gingerol content. The possible explanation for these results has been put forward by microstructure analysis. CIR-dried ginger samples were pretreated by four methods required by the agricultural standards of China. This study provides a new perspective on the commercial application of ethanol + US pretreatment for CIR-dried ginger slices.
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Affiliation(s)
- Manni Ren
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China
| | - Zifei Ren
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Li Chen
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Cunshan Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Clinton Emeka Okonkwo
- Department of Agricultural and Biosystems Engineering, College of Engineering, Landmark University, PMB 1001 Omu-Aran, Kwara State, Nigeria
| | - Arun S Mujumdar
- Department of Bioresource Engineering, Macdonald Campus, McGill University, Montreal, Quebec, Canada
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Basak S, Mahale S, Chakraborty S. Changes in quality attributes of pulsed light and thermally treated mixed fruit beverages during refrigerated storage (4 °C) condition. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.103025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Single and Combined Effect of Mild-Heat Treatment and Alginate Coatings on Quality Preservation of Minimally Processed Bunching Green Onions. Foods 2022; 11:foods11050641. [PMID: 35267274 PMCID: PMC8909205 DOI: 10.3390/foods11050641] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/13/2022] [Accepted: 02/19/2022] [Indexed: 02/01/2023] Open
Abstract
Bunching green onion is an Allium species that has been widely used in food flavorings and seasonings. This vegetable experiences a rapid loss of quality during storage due to physiological changes and microbial spoilage. In the current work, the single and combined effect of mild-heat treatment (55 °C for 60 s) and alginate edible coatings on the quality preservation of minimally processed bunching green onions was studied. Control and treated samples were stored at 4 °C for 15 days and examined periodically in terms of their respiration rate, weight loss, pH, soluble solids content, firmness, total polyphenol content, antioxidant activity, microbial count, decay ratio, and overall visual quality. The results showed that the combination of mild heat and alginate edible coatings was the most effective approach to slow down the respiration rate and the incidence of decay in the minimally processed bunching green onions. In addition, the treatments with alginate coating alone or combined with mild-heat treatment showed the best performance for maintaining the overall visual quality of the products during the storage.
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Rashid MH, Khan MR, Roobab U, Rajoka MSR, Inam‐ur‐Raheem M, Anwar R, Ahmed W, Jahan M, Ijaz MRA, Asghar MM, Shabbir MA, Aadil RM. Enhancing the shelf stability of fresh‐cut potatoes via chemical and nonthermal treatments. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15582] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Muhammad Hamdan Rashid
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Moazzam Rafiq Khan
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Ume Roobab
- School of Food Science and Engineering South China University of Technology Guangzhou China
| | | | - Muhammad Inam‐ur‐Raheem
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Raheel Anwar
- Institute of Horticulture University of Agriculture Faisalabad Pakistan
| | - Waqar Ahmed
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Musarrat Jahan
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | | | - Malik Muhammad Asghar
- Postharvest Research Institute Ayub Agricultural Research Institute Faisalabad Pakistan
| | - Muhammad Asim Shabbir
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
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Giannakourou MC, Tsironi TN. Application of Processing and Packaging Hurdles for Fresh-Cut Fruits and Vegetables Preservation. Foods 2021; 10:830. [PMID: 33920447 PMCID: PMC8068883 DOI: 10.3390/foods10040830] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 12/15/2022] Open
Abstract
Recently, consumers' demand for fresh, nutritious, and convenient food has shown a significant rise. This trend has forced increased sales of minimally processed and/or pre-packed fruit- and vegetable-based products. New product development and the diversification of plant-based foods have supported this growth. The food production sector should balance this requirement with the necessity to provide safe food with extended shelf life while meeting consumer demands for novel, nutritious, and affordable food products. The use of alternative "soft hurdles" may result in a decrease in the rate of food deterioration and spoilage attributed to microbial activity or other physiological/chemical degradation reactions. The objective of the article is to provide a systematic review of the preservative effect of the available hurdles implemented during processing and packaging of fresh-cut fruits and vegetables, focusing on recent applications aiming at improving product quality and prolonging their limited shelf life.
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Affiliation(s)
- Maria C. Giannakourou
- Laboratory of Chemistry, Analysis & Design of Food Processes, Department of Food Science and Technology, School of Food Sciences, University of West Attica, Agiou Spyridonos, 12243 Athens, Greece;
| | - Theofania N. Tsironi
- Laboratory of Food Process Engineering, Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
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Self-Healing, Stretchable, Biocompatible, and Conductive Alginate Hydrogels through Dynamic Covalent Bonds for Implantable Electronics. Polymers (Basel) 2021; 13:polym13071133. [PMID: 33918277 PMCID: PMC8038184 DOI: 10.3390/polym13071133] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 03/28/2021] [Accepted: 03/30/2021] [Indexed: 12/20/2022] Open
Abstract
Implantable electronics have recently been attracting attention because of the promising advances in personalized healthcare. They can be used to diagnose and treat chronic diseases by monitoring and applying bioelectrical signals to various organs. However, there are challenges regarding the rigidity and hardness of typical electronic devices that can trigger inflammatory reactions in tissues. In an effort to improve the physicochemical properties of conventional implantable electronics, soft hydrogel-based platforms have emerged as components of implantable electronics. It is important that they meet functional criteria, such as stretchability, biocompatibility, and self-healing. Herein, plant-inspired conductive alginate hydrogels composed of “boronic acid modified alginate” and “oligomerized epigallocatechin gallate,” which are extracted from plant compounds, are proposed. The conductive hydrogels show great stretchability up to 500% and self-healing properties because of the boronic acid-cis-diol dynamic covalent bonds. In addition, as a simple strategy to increase the electrical conductivity of the hydrogels, ionically crosslinked shells with cations (e.g., sodium) were generated on the hydrogel under physiological salt conditions. This decreased the resistance of the conductive hydrogel down to 900 ohm without trading off the original properties of stretchability and self-healing. The hydrogels were used for “electrophysiological bridging” to transfer electromyographic signals in an ex vivo muscle defect model, showing a great bridging effect comparable to that of a muscle-to-muscle contact model. The use of plant-inspired ionically conductive hydrogels is a promising strategy for designing implantable and self-healable bioelectronics.
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Basumatary IB, Mukherjee A, Katiyar V, Kumar S. Biopolymer-based nanocomposite films and coatings: recent advances in shelf-life improvement of fruits and vegetables. Crit Rev Food Sci Nutr 2020; 62:1912-1935. [DOI: 10.1080/10408398.2020.1848789] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Indra Bhusan Basumatary
- Department of Food Engineering and Technology, Central Institute of Technology Kokrajhar, Kokrajhar, Assam, India
| | - Avik Mukherjee
- Department of Food Engineering and Technology, Central Institute of Technology Kokrajhar, Kokrajhar, Assam, India
| | - Vimal Katiyar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Santosh Kumar
- Department of Food Engineering and Technology, Central Institute of Technology Kokrajhar, Kokrajhar, Assam, India
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Pirozzi A, Pataro G, Donsì F, Ferrari G. Edible Coating and Pulsed Light to Increase the Shelf Life of Food Products. FOOD ENGINEERING REVIEWS 2020. [DOI: 10.1007/s12393-020-09245-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractThe application of edible coatings (EC) in combination with pulsed light (PL) treatments represents an emerging approach for extending the shelf life of highly perishable but high value-added products, such as fresh-cut fruits and vegetables. The surface of these products would benefit from the protective effects of ECs and the PL decontamination capability. This review describes in detail the fundamentals of both EC and PL, focusing on the food engineering principles in the formulation and application of EC and the delivery of efficient PL treatments and the technological aspects related to the food characterization following these treatments and discussing the implementation of the two technologies, individually or in combination. The advantages of the combination of EC and PL are extensively discussed emphasizing the potential benefits that may be derived from their combination when preserving perishable foods. The downsides of combining EC and PL are also presented, with specific reference to the potential EC degradation when exposed to PL treatments and the screening effect of PL transmittance through the coating layer. Finally, the potential applications of the combined treatments to food products are highlighted, comparatively presenting the treatment conditions and the product shelf-life improvement.
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Cell wall composition of alginate coated and pulsed light treated fresh-cut cantaloupes ( Cucumis melo L. Var. Reticulatus Cv. Glamour) during chilled storage. Journal of Food Science and Technology 2020; 57:2206-2221. [PMID: 32431347 DOI: 10.1007/s13197-020-04257-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/03/2019] [Accepted: 01/16/2020] [Indexed: 10/25/2022]
Abstract
This study was to investigate the effects of optimised alginate coating combined with repetitive pulsed light (RPL) on cell wall composition of fresh-cut cantaloupes during chilled storage. Fresh-cut cantaloupes were coated with alginate (1.86%, w/v) followed by RPL treatment (0.9 J cm-2 at every 48 h up to 26 days) during storage of 36 days. Cell wall composition of fresh-cut cantaloupes was determined at every 12 days while microscopic analysis was conducted on day 2 and day 36. Alginate was effective in maintaining high pectin fractions of fresh-cut cantaloupes while RPL showed greater contribution in maintaining hemicellulose fraction. However, the combination of alginate and RPL was the most effective treatment to maintain the overall cell wall fractions that contributed to the cell wall integrity of fresh-cut cantaloupes during storage. The alginate + RPL samples also had the greatest cell turgidity and shape with well-defined cell walls at the end of storage.
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Effect of Linseed (Linum usitatissimum) Mucilage and Chitosan Edible Coatings on Quality and Shelf-Life of Fresh-Cut Cantaloupe (Cucumis melo). COATINGS 2019. [DOI: 10.3390/coatings9060368] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We have evaluated the effect of edible coatings (ECs) based on linseed mucilage (LM), chitosan (CH), and their combination (LMCH) on the quality and shelf life of fresh-cut cantaloupe. Cantaloupe was washed, sanitized, and processed (peeled, seeded, and cut) and then coated by immersion, packed, and stored for 18 days at 4 °C. The ECs were effective at reducing the juice leakage and softening of the product. The EC based on CH was the most effective at preserving the color parameter and reducing the general microbiological growth. However, the LMCH combination decreased the antimicrobial effect of chitosan against microorganisms. Also, CH and LM ECs helped preserve the overall sensory characteristics, increasing the acceptance to 12–15 days. Finally, the LMCH combination helped preserve the characteristics of color and odor; however, it modified the texture and taste of fresh-cut cantaloupe and its sensory acceptance was similar to the control (up to 9 days).
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Sensory quality and flavour of alginate coated and repetitive pulsed light treated fresh-cut cantaloupes ( Cucumis melo L. Var. Reticulatus Cv. Glamour) during storage. Journal of Food Science and Technology 2019; 56:2563-2575. [PMID: 31168138 DOI: 10.1007/s13197-019-03739-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/12/2019] [Accepted: 03/19/2019] [Indexed: 10/27/2022]
Abstract
Fresh-cut fruits are popular due to the convenience provided. However, fresh-cut processes damage fruit tissues and reduce the shelf life of products. Pulsed light (PL) treatment is a decontamination method of foods. PL treatment given repetitively at a certain interval during storage could further extend the shelf life of fresh-cut fruits. Edible coating preserves fresh-cut fruits by providing mechanical strength and reducing respiration and water loss. This study was to evaluate the effects of alginate coating combined with repetitive pulsed light (RPL) on sensory quality and flavour of fresh-cut cantaloupes during storage. Cantaloupes were treated with alginate (1.86%, w/v) and RPL (0.9 J/cm2 at every 48 h up to 26 days) alone or in combination. Flavour analysis of fresh-cut cantaloupes was carried out every 12 days during storage at 4 ± 1 °C while sensory analysis was performed on day 32. Alginate coating and/or RPL retained sugar contents (17.92-20.01 g/kg FW for fructose, 18.77-19.98 g/kg FW for glucose and 23.02-29.41 g/kg FW for sucrose) in fresh-cut cantaloupes during storage. Combination of alginate with RPL reduced accumulation of lactic acid although alginate coating was more effective to minimise changes of other organic acids in fresh-cut cantaloupes. The combined treatment was also more effective than individual treatment in retaining total aroma compound concentration of fresh-cut cantaloupes during storage with the highest relative concentration, i.e. 3.174 on day 36. Overall, the combined alginate coating and RPL was effective to maintain the fresh-like sensory quality of fresh-cut cantaloupes with insignificant overall acceptability compared to the control.
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