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Electrostatic atomised water particles reduces postharvest lignification and maintain asparagus quality
Scientia Horticulturae ( IF 4.3 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.scienta.2020.109487
Wai Wai Lwin , Varit Srilaong , Panida Boonyaritthongchai , Chalermchai Wongs-Aree , Nutthachai Pongprasert

Abstract Asparagus has a high respiration rate and short shelf-life. The loss in quality is observed through the wrinkling of stems, loss of green colour and toughening. The objective of this study was to reduce the spear lignification and maintain the quality of asparagus using electrostatic atomised water particle (EAWP) treatment. Asparagus were treated with EAWPs for 0 (control) and 90 min and kept at 4 °C for 24 days. The results showed that EAWP treatment for 90 min maintained the colour and total chlorophyll content of the spears. EAWP treatment retarded the respiration rate and ethylene production, reduced weight loss and induced stomatal closure in the stored asparagus. Additionally, the treatment significantly delayed the rise in the activities of phenylalanine ammonia-lyase (PAL), cinnamyl alcohol dehydrogenase (CAD) and peroxidase (POD), which were associated with the inhibition of lignin and cellulose accumulation. Similarly, treated asparagus showed lower hydrogen peroxide content than that of the control but had higher nitric oxide content during the initial days in storage, and decreased thereafter. Distinctly, total phenolic in EAWP treated asparagus was higher than the control. These findings suggest that EAWPs worked as a stress treatment to inhibit the lignification process and maintained the quality of asparagus during storage at 4 °C.

中文翻译:

静电雾化水颗粒可减少采后木质化并保持芦笋质量

摘要 芦笋呼吸速率高,保质期短。通过茎的起皱、绿色的损失和变韧观察到质量的损失。本研究的目的是使用静电雾化水颗粒 (EAWP) 处理来减少长矛木质化并保持芦笋的质量。芦笋用 EAWPs 处理 0(对照)和 90 分钟,并在 4°C 下保存 24 天。结果表明,EAWP 处理 90 分钟保持了矛的颜色和总叶绿素含量。EAWP 处理延迟了呼吸速率和乙烯的产生,减少了重量损失并诱导了储存芦笋的气孔关闭。此外,该治疗显着延迟了苯丙氨酸解氨酶 (PAL) 活性的上升,肉桂醇脱氢酶 (CAD) 和过氧化物酶 (POD),它们与抑制木质素和纤维素积累有关。类似地,处理过的芦笋的过氧化氢含量低于对照,但在储存的最初几天内一氧化氮含量较高,此后下降。显然,EAWP 处理的芦笋中的总酚高于对照。这些发现表明,EAWPs 可以作为一种压力处理来抑制木质化过程,并在 4°C 储存期间保持芦笋的质量。EAWP 处理的芦笋中的总酚含量高于对照。这些发现表明,EAWPs 可以作为一种压力处理来抑制木质化过程,并在 4°C 储存期间保持芦笋的质量。EAWP 处理的芦笋中的总酚含量高于对照。这些发现表明,EAWPs 可以作为一种压力处理来抑制木质化过程,并在 4°C 储存期间保持芦笋的质量。
更新日期:2020-09-01
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