Cano Antonio, Giraldo-Acosta Manuela, García-Sánchez Sara, Hernández-Ruiz Josefa, B Arnao Marino
Phytohormones and Plant Development Lab, Department of Plant Biology (Plant Physiology), University of Murcia, 30100 Murcia, Spain.
Plants (Basel). 2022 Jul 31;11(15):2000. doi: 10.3390/plants11152000.
The post-harvest stage of broccoli production requires cold storage to obtain enough days of shelf life. It has been proved that melatonin is useful as a post-harvest agent in fruits and vegetables, including broccoli. In this study, the broccoli heads treated with melatonin have a longer shelf life than the control samples, which was reflected in parameters such as fresh weight, hue angle (expresses color quality), and chlorophyll and carotenoid contents. Treatments with 100 μM melatonin for 15 or 30 min seem to be the most appropriate, extending the broccoli's shelf life to almost 42 days, when it is normally around 4 weeks. In addition, a study on the possible impact that melatonin treatments in broccoli could have on melatonin intake in humans is presented. The levels of superficial melatonin, called washing or residual melatonin, are measured, showing the possible incidence in estimated blood melatonin levels. Our results suggest that post-harvest treatments with melatonin do not have to be a handicap from a nutritional point of view, but more research is needed.
西兰花生产的收获后阶段需要冷藏以获得足够的货架期天数。已证明褪黑素在包括西兰花在内的水果和蔬菜中作为一种采后处理剂是有用的。在本研究中，用褪黑素处理的西兰花头比对照样品具有更长的货架期，这体现在鲜重、色相角（表示颜色质量）以及叶绿素和类胡萝卜素含量等参数上。用100μM褪黑素处理15或30分钟似乎是最合适的，能将西兰花的货架期延长至近42天，而正常情况下约为4周。此外，还介绍了一项关于西兰花中褪黑素处理可能对人体褪黑素摄入量产生的影响的研究。测量了表面褪黑素水平，即洗涤或残留褪黑素水平，显示了其对估计血液褪黑素水平可能产生的影响。我们的结果表明，从营养角度来看，采后用褪黑素处理不一定是一个障碍，但还需要更多的研究。
