Abstract: The essential oils of four umbellifers (Cuminum cyminum L.,Coriandrum sativum L.,Carum carvi,Anethum graveolens L.) were hydro-distilled and the nanoemulsion of the compound essential oil was prepared.Potato tubers were fogged with the nanoemulsion to test its antigermination effect on potato tubers.To explore the antigermination mechanism,the contents of reactive oxygen species and key antioxidants,and the activities of key antioxidant enzymes of treated tubers were tested.The results showed that the fogging with the nanoemulsion significantly inhibited the germination of potato tubers and also reduced the content of tuber hydrogen peroxide.Besides,it could significantly increase the contents of nicotinamide adenine dinucleotide phosphate (NADPH).Moreover,glutathione and the contents of total flavonoids and total phenols of the tubers were also decreased.Furthermore,the activities of the key antioxidative enzymes in the tuber were significantly elevated by fogging treatment.In conclusion,nanoemulsion of the compound essential oil reduced the content of reactive oxygen species by adjusting the activities of key antioxidant enzymes and antioxidant contents of potato tuber,and thus extended the dormant period of potato tuber and inhibited its germination.
李子和,夏泆斌,张忠,等. 复配精油纳米乳雾化处理对马铃薯发芽的抑制作用及机理探讨[J]. 食品与发酵工业, 2021, 47(2): 30-37.
LI Zihe,XIA Yibing,ZHANG Zhong,et al. Antigermination effect of compound essential oil nanoemulsion fogging on potato tuber and the exploration of the mechanism[J]. Food and Fermentation Industries, 2021, 47(2): 30-37.
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