用于提高对采后蓝莓保鲜效果的美国薄荷纳米乳化精油。

Nano-emulsification essential oil of Monarda didyma L. to improve its preservation effect on postharvest blueberry.

作者信息

Zhang Yanxin, Dai Jinlong, Ma Xiaoyun, Jia Chengguo, Han Junyou, Song Chenggang, Liu Yuqing, Wei Dongsheng, Xu Hongfei, Qin Jianchun, Yang Shengxiang

机构信息

College of Plant Sciences, Jilin University, Changchun 130062, China.

Department of Biology, Institute of Wood Science, University of Hamburg, Hamburg 21031, Germany.

出版信息

Food Chem. 2023 Aug 15;417:135880. doi: 10.1016/j.foodchem.2023.135880. Epub 2023 Mar 7.

DOI:10.1016/j.foodchem.2023.135880

PMID:36924719

Abstract

The reduction in blueberry harvest due to pathogen infection was reported to reach 80%. Essential oil (EO) can provide a new way to preserve blueberry. Here, in search for plants volatiles with preservation ability, a novel device was designed for the screening of aromatic plants led to the discovery of hit plant Monarda didyma L. Consequently, antifungi activity of M. didyma EO (MEO) and its nano-emulsion (MNE) were tested. 2 species of pathogenic fungi were isolated from blueberries, namely Alternaria sp. and Colletotrichum sp. were used as the target strains. In the in vitro activity test, the pathogenic were completely inhibited when the EO was 4 µL or 1.0 µL/mL. Compared with EO, MNE exhibited superior antimicrobial activity. Moreover, MNE can cause serious morphological changes and result in a decrease in the rot and weightlessness rate of blueberry. Hence, NME represents a promising agent for the preservation of postharvest blueberry.

摘要

据报道，因病原体感染导致蓝莓产量减少达80%。香精油（EO）可为蓝莓保鲜提供新途径。在此，为寻找具有保鲜能力的植物挥发物，设计了一种新型装置用于筛选芳香植物，从而发现了目标植物美国薄荷。因此，对美国薄荷香精油（MEO）及其纳米乳液（MNE）的抗真菌活性进行了测试。从蓝莓中分离出2种致病真菌，即链格孢属和炭疽菌属，用作靶标菌株。在体外活性测试中，当香精油浓度为4 μL或1.0 μL/mL时，病原体被完全抑制。与香精油相比，MNE表现出更强的抗菌活性。此外，MNE可引起严重的形态变化，并导致蓝莓的腐烂率和失重率降低。因此，MNE是一种很有前景的采后蓝莓保鲜剂。