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首页> 外文会议>Plasma for bio-decontamination, medicine and food security >Impact of Atmospheric Plasma Generated by a DBD Device on Quality-Related Attributes of 'Abate Fetel' Pear Fruit
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Impact of Atmospheric Plasma Generated by a DBD Device on Quality-Related Attributes of 'Abate Fetel' Pear Fruit

机译：DBD装置产生的大气血浆对'减轻Fetel'梨果实品质相关属性的影响

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摘要

The effects of gas plasma generated by a Dielectric Barrier Discharge (DBD) device on "Abate Fetel" fresh pears were assessed following exposure times from 10 to 90 min. In particular the decontamination efficacy towards the indigenous microflora naturally occurring on the surface of the fruit was evaluated. The main results showed that total mesophilic bacteria, yeasts and moulds had different inactivation dynamics. However, maximum cell decreases of 2.5 Log CFU/fruit were achieved for all the microbial groups after 90 min of treatment at a relative humidity level of 60% (22℃). Immediately after the treatments, no significant effects were observed on the measured quality traits. After storage for 5 days at 20℃ significant changes were detected only in the peel (colour and antioxidant capacity) of fruit samples treated for 90 min. The Magness-Taylor flesh firmness (MTf), the soluble solid content (SSC) and the antioxidant capacity of fruits were unaffected by the tested treatments.
机译：在10到90分钟的暴露时间后，评估了由介电势垒放电（DBD）装置产生的气体等离子体对“ Abate Fetel”新鲜梨的影响。特别地，评估了对天然存在于水果表面上的本地微生物群的去污效力。主要结果表明，总的嗜温细菌，酵母和霉菌具有不同的灭活动力学。但是，在相对湿度为60％（22℃）的条件下处理90分钟后，所有微生物组的最大细胞减少量为2.5 Log CFU /水果。处理后立即对所测得的品质性状没有观察到明显的影响。在20℃下保存5天后，仅处理90分钟的水果样品的果皮（颜色和抗氧化能力）有显着变化。 Magness-Taylor果肉的硬度（MTf），可溶性固形物含量（SSC）和水果的抗氧化能力不受测试处理的影响。

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  • 来源
  • 会议地点 Demanovska Dolina(SK)
  • 作者

    Annachiara Berardinelli; Lucia Vannini; Luigi Ragni; M. Elisabetta Guerzoni;

  • 作者单位

    Agricultural Economics and Engineering Department, University of Bologna, P.za G. Goidanich 60, 47521 Cesena, Italy;

    Food Science Department, University of Bologna, Bologna, Italy Centro Interdipartimentale di Ricerca Industriale Agroalimentare, University of Bologna, Bologna, Italy;

    Agricultural Economics and Engineering Department, University of Bologna, P.za G. Goidanich 60, 47521 Cesena, Italy;

    Food Science Department, University of Bologna, Bologna, Italy Centro Interdipartimentale di Ricerca Industriale Agroalimentare, University of Bologna, Bologna, Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物工程学（生物技术）;
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