Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system
Ultrasound technology has been increasingly explored as an eco-friendly method to improve the microbial safety of leafy greens. However, its effect on produce quality is critical, and considerable knowledge gaps remain in this area. The present study examined the response of leafy greens to ultrasou...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Ultrasonics Sonochemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S135041772400470X |
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| author | Bin Zhou J. Atilio de Frias Yaguang Luo Jorge M. Fonseca Hao Feng |
| author_facet | Bin Zhou J. Atilio de Frias Yaguang Luo Jorge M. Fonseca Hao Feng |
| author_sort | Bin Zhou |
| collection | DOAJ |
| description | Ultrasound technology has been increasingly explored as an eco-friendly method to improve the microbial safety of leafy greens. However, its effect on produce quality is critical, and considerable knowledge gaps remain in this area. The present study examined the response of leafy greens to ultrasound treatment as shown by tissue damage and sensory quality, using a novel multifrequency, multimode, modulated (MMM) system to address the issue of nonuniform ultrasound field distribution. Iceberg lettuce, romaine lettuce, spinach, loose leaf lettuce and Lollo Rosso were subjected to different ultrasonication durations (1–16 min) in a MMM tubular treatment unit at 34 kHz and subsequently stored at 1 °C for three weeks. Sensory evaluations by a trained panel and electro-conductivity rate measurements were conducted to assess produce quality over time. Ultrasound treatment at an acoustic power density below 80 W/L had no significant effect (P > 0.05) on the overall sensory quality of leafy greens during 14 days of storage. Even though the electro-conductivity rate, an indicator of tissue damage, increased in ultrasound-treated samples compared to control, it did not result in perceptible changes in sensory attributes. |
| format | Article |
| id | doaj-art-4682c6f390cf44e28bbe4d733560aaf8 |
| institution | Kabale University |
| issn | 1350-4177 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj-art-4682c6f390cf44e28bbe4d733560aaf82025-02-01T04:11:36ZengElsevierUltrasonics Sonochemistry1350-41772025-02-01113107221Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated systemBin Zhou0J. Atilio de Frias1Yaguang Luo2Jorge M. Fonseca3Hao Feng4Food Quality Lab, Beltsville Agricultural Research Center, United States Department of Agriculture, Beltsville, MD 20705, USA; Corresponding authors at: Food Quality Lab, Beltsville Agricultural Research Center, United States Department of Agriculture, Beltsville, Maryland 20705, United States (Bin Zhou). BCBS NC CAES Urban Food Systems Endowed Professor, Department of Family and Consumer Sciences, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA (Hao Feng).Food Quality Lab, Beltsville Agricultural Research Center, United States Department of Agriculture, Beltsville, MD 20705, USAFood Quality Lab, Beltsville Agricultural Research Center, United States Department of Agriculture, Beltsville, MD 20705, USA; Enviromental Microbial and Food Safety Lab, Beltsville Agricultural Research Center, United States Department of Agriculture, Beltsville, MD 20705, USAFood Quality Lab, Beltsville Agricultural Research Center, United States Department of Agriculture, Beltsville, MD 20705, USADepartment of Family and Consumer Sciences, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA; Corresponding authors at: Food Quality Lab, Beltsville Agricultural Research Center, United States Department of Agriculture, Beltsville, Maryland 20705, United States (Bin Zhou). BCBS NC CAES Urban Food Systems Endowed Professor, Department of Family and Consumer Sciences, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA (Hao Feng).Ultrasound technology has been increasingly explored as an eco-friendly method to improve the microbial safety of leafy greens. However, its effect on produce quality is critical, and considerable knowledge gaps remain in this area. The present study examined the response of leafy greens to ultrasound treatment as shown by tissue damage and sensory quality, using a novel multifrequency, multimode, modulated (MMM) system to address the issue of nonuniform ultrasound field distribution. Iceberg lettuce, romaine lettuce, spinach, loose leaf lettuce and Lollo Rosso were subjected to different ultrasonication durations (1–16 min) in a MMM tubular treatment unit at 34 kHz and subsequently stored at 1 °C for three weeks. Sensory evaluations by a trained panel and electro-conductivity rate measurements were conducted to assess produce quality over time. Ultrasound treatment at an acoustic power density below 80 W/L had no significant effect (P > 0.05) on the overall sensory quality of leafy greens during 14 days of storage. Even though the electro-conductivity rate, an indicator of tissue damage, increased in ultrasound-treated samples compared to control, it did not result in perceptible changes in sensory attributes.http://www.sciencedirect.com/science/article/pii/S135041772400470XUltrasoundFresh produceLeafy greensQuality |
| spellingShingle | Bin Zhou J. Atilio de Frias Yaguang Luo Jorge M. Fonseca Hao Feng Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system Ultrasonics Sonochemistry Ultrasound Fresh produce Leafy greens Quality |
| title | Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system |
| title_full | Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system |
| title_fullStr | Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system |
| title_full_unstemmed | Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system |
| title_short | Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system |
| title_sort | impact of power ultrasound on the quality of leafy green produce through a multifrequency multimode modulated system |
| topic | Ultrasound Fresh produce Leafy greens Quality |
| url | http://www.sciencedirect.com/science/article/pii/S135041772400470X |
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