Effect of SiNPs Treatment on the Storage and Preservation Quality of Fengtou Tender Ginger
To investigate the effect of silicon dioxide nanoparticles(SiNPs)treatment on the postharvest storage and preservation quality of ginger,'Fengtou'gingers were used as the material and treated with 100 mg/L SiNPs(SiNP100)solution,to analyze the preservation quality and the changes of tender ginger under storage conditions of(12±1)℃ and relative humidity of 85%~90%.The results showed that soa-king in SiNP100 solution can effectively maintain the storage quality of postharvest tender ginger.After storage for 28 days,compared with the control,the hardness,weight loss rate,soluble solids,and soluble protein content of SiNP100-treated tender ginger was increased by 7.76%,57.81%,26.76%,and 19.74%,respectively,the activities of peroxidase,catalase,superoxide dismutase was increased by 149.18%,90.01%and 10.27%,respectively,the phenylalanine ammonia lyase and polyphenol oxidase activities was decreased by 8%and 62.28%,respectively.The flavonoid content was 26.24%higher than that of control.In summary,SiNPs treatment can effectively maintain the storage quality of postharvest tender ginger.