E-beam irradiation of strawberries: Investigation of microbiological, physicochemical, sensory acceptance properties and bioactive content

Barkaoui, Salma; Mankaï, Mélika; Miloud, Najla Ben; Kraïem, Mokhtar; Madureira, Joana; Verde, Sandra Cabo; Boudhrioua, Nourhène

doi:10.1016/j.ifset.2021.102769

Cited by 19 publications

(9 citation statements)

References 20 publications

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“…3b. It can be seen that ΔE fluctuates within a narrow range and the most value of ΔE was less than 0.5 over 8000 thermal cycles, this indicated that the physicochemical properties of the thermochromic microcapsules were stable within the working temperature range [24,25]. With Temperature control, it is demonstrated that the patterns on the thermochromic fabric can be changed dynamically.…”

Section: Performance Of Thermochromic Fabrics and Fabric Dynamic Disp...mentioning

confidence: 94%

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Flexible thermochromic fabrics enabling dynamic colored display

Sun

Wang

et al. 2022

Front. Optoelectron.

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Color-changeable fibers can provide diverse functions for intelligent wearable devices such as novel information displays and human–machine interfaces when woven into fabric. This work develops a low-cost, effective, and scalable strategy to produce thermochromic fibers by wet spinning. Through a combination of different thermochromic microcapsules, flexible fibers with abundant and reversible color changes are obtained. These color changes can be clearly observed by the naked eye. It is also found that the fibers exhibit excellent color-changing stability even after 8000 thermal cycles. Moreover, the thermochromic fibers can be fabricated on a large scale and easily woven or implanted into various fabrics with good mechanical performance. Driven by their good mechanical and physical characteristics, applications of thermochromic fibers in dynamic colored display are demonstrated. Dynamic quick response (QR) code display and recognition are successfully realized with thermochromic fabrics. This work well confirms the potential applications of thermochromic fibers in smart textiles, wearable devices, flexible displays, and human–machine interfaces. Graphical Abstract

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Section: Performance Of Thermochromic Fabrics and Fabric Dynamic Disp...mentioning

confidence: 94%

“…S4). The color changes at different temperatures were evaluated using the definition of color difference suggested by National Bureau of Standards of USA [24]. The total color difference between the samples before and after discoloration was denoted as ΔE (Additional file 1: Table S1).…”

Section: Performance Of Thermochromic Fabrics and Fabric Dynamic Disp...mentioning

confidence: 99%

Flexible thermochromic fabrics enabling dynamic colored display

Sun

Wang

et al. 2022

Front. Optoelectron.

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“…Ionizing radiation is a clean and environmentally friendly technology that does not require the addition of chemicals. It is evidenced to be capable of enhancing the phenolic compounds extraction and antioxidant activity on industrial wastewater [24], fresh fruits such as cherry tomatoes [25], raspberries [26], and strawberries [27] and dried medicinal plants [28]. More recently, the authors demonstrated the suitability of gamma radiation at 5 kGy to improve the extractability of phenolic compounds from olive pomace by two-fold compared to the non-irradiated samples [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Olive Pomace Extract Application and Packaging Material on the Preservation of Fresh-Cut Royal Gala Apples

Madureira

Melgar

Alves

et al. 2023

Foods

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The efficiency of natural olive pomace extracts for enhancing the quality of fresh-cut apples was compared with commercial ascorbic acid and two different packaging films (biodegradable polylactic acid (PLA) and oriented polypropylene (OPP)) were tested. The composition of atmosphere inside the packages, the physicochemical parameters (firmness, weight loss and color), the microbial load, total phenolic content and antioxidant activity of fresh-cut apples were evaluated throughout 12 days of storage at 4 °C. After 12 days of refrigerated storage, a significant decrease in O2 was promoted in PLA films, and the weight loss of the whole packaging was higher in PLA films (5.4%) than in OPP films (0.2%). Natural olive pomace extracts reduced the load of mesophilic bacteria (3.4 ± 0.1 log CFU/g and 2.4 ± 0.1 log CFU/g for OPP and PLA films, respectively) and filamentous fungi (3.3 ± 0.1 log CFU/g and 2.44 ± 0.05 log CFU/g for OPP and PLA films, respectively) growth in fresh-cut apples after five days of storage at 4 °C, and no detection of coliforms was verified throughout the 12 days of storage. In general, the olive pomace extract preserved or improved the total phenolic index and antioxidant potential of the fruit, without significant changes in their firmness. Moreover, this extract seemed to be more effective when combined with the biodegradable PLA film packaging. This work can contribute to the availability of effective natural food additives, the sustainability of the olive oil industries and the reduction of environmental impact. It can also be useful in meeting the food industries requirements to develop new functional food products.

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“…The irradiation process using electron beams does extend the shelf‐life of fresh produce and reduces quality losses in fresh produce. This decontamination strategy has been extensively researched (Barkaoui et al, 2021; Meireles et al, 2016; Moreira & Castell‐Perez, 2021; Pinela & Ferreira, 2017). In the specific case of tomatoes, several studies found that the use of irradiation treatment using different radiation sources could inactivate Salmonella on tomatoes and even extend the shelf life (Guerreiro et al, 2016; Gyimah et al, 2020; Mahmoud, 2010; Mendes et al, 2020; Prakash et al, 2007; Schmidt et al, 2006; Singh et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Integrated electron beam irradiation treatment with hydrogen peroxide aqueous solution to inactivate Salmonella on grape tomatoes

Omac

Moreira

Castell‐Perez

2022

J Food Process Engineering

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This study investigated the efficacy of integrated electron beam (e‐beam) irradiation and hydrogen peroxide (H2O2) aqueous solution treatments to inactivate mixed strains of Salmonella inoculated in grape tomatoes. Whole grape tomatoes were inoculated with a mixed bacterial cocktail composed of five strains of Salmonella enterica corresponding to serotypes Rissen (SAL1449), Montevideo (SAL4599), Saintpaul (476398), and Typhimurium (ATCC 13311 and ATCC 700720), dried in a biological safety cabinet for 2 h at room temperature and then stored at 4°C for 24 h to facilitate bacterial attachment before treatment. Tomatoes in H2O2 (60 mg/L) aqueous solution were irradiated at 0.45, 0.60, 0.75, 1.0, and 1.25 kGy dose. The combined treatment of 1.0 kGy radiation dose and 60 mg/L H2O2 achieved 4‐log reductions in Salmonella. The D10−average value of Salmonella in the present study was 0.25 ± 0.01 kGy. Regarding the effect of the treatment on tomato quality, the combined application of e‐beam up to 1.25 kGy and H2O2 (60 mg/L) did not affect (p > .05) the color and texture of grape tomatoes compared to non‐irradiated samples. Furthermore, the combined treatments of e‐beam and H2O2 aqueous solution reduced the dose uniformity ratio (DUR) by 7%, a relevant finding regarding commercial applications of electron beam accelerators. Exposure of the tomatoes to e‐beam and water wash with added H2O2 is a promising decontamination system for use in tomatoes and other produce processing. Further studies on the optimization of this integrated treatment are needed. Practical Applications Electron beam irradiation of tomatoes immersed in hydrogen peroxide (H2O2) solution reduces the dose required to eliminate pathogens in the fresh produce. The integrated treatment ensures minimal changes to produce quality and increased treatment efficiency in terms of dose uniformity.

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E-beam irradiation of strawberries: Investigation of microbiological, physicochemical, sensory acceptance properties and bioactive content

Cited by 19 publications

References 20 publications

Flexible thermochromic fabrics enabling dynamic colored display

Flexible thermochromic fabrics enabling dynamic colored display

Effect of Olive Pomace Extract Application and Packaging Material on the Preservation of Fresh-Cut Royal Gala Apples

Integrated electron beam irradiation treatment with hydrogen peroxide aqueous solution to inactivate Salmonella on grape tomatoes

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