Application of Prochloraz-nano-titanium Dioxide Complex Fresh-keeping Agent in Refrigeration of Dioscorea alata Lirm. sp.  

作　　者：Dongdi XIE Yanpei WEI Xiaoping WEI Wanwei WU 

机构地区：[1]College of Food and Bioengineering,Hezhou College

出　　处：《Asian Agricultural Research》2018年第10期77-81,共5页亚洲农业研究（英文）

基　　金：Supported by Natural Science Foundation of Guangxi(2017GXNSFAA198082);Guangxi First-class Discipline Cultivation Project for Food Science and Engineering(GXYLXP1812)

摘　　要：Prochloraz diluents( 450 ×,475 ×,500 ×) were added with different concentrations of nano-titanium dioxide( Ti O2)( 0. 8%,1. 0%) respectively to prepare complex fresh-keeping agents,which were applied in the refrigeration of Dioscorea alata Lirm. sp. With rot index,weight loss rate,browning degree( BD),total soluble solids( TSS) content,malondialdehyde( MDA) content,polyphenol oxidase( PPO) activity and peroxidase( POD) activity,DPPH· scavenging rate as evaluation indexes,the preservation effect of the prepared freshkeeping agents on D. alata during the cold storage period was analyzed. The results showed that prochloraz added with nano-titanium dioxide significantly prolonged the storage life,reduced the rot rate and weight loss rate,and slowed the loss of pulp of D. alata. The preservation effect of complex fresh-keeping agent of prochloraz diluent( 475 ×) and nano-titanium dioxide( 1. 0%) was better than that of other treatments.Prochloraz diluents（ 450 ×,475 ×,500 ×） were added with different concentrations of nano-titanium dioxide（ Ti O2）（ 0. 8%,1. 0%） respectively to prepare complex fresh-keeping agents,which were applied in the refrigeration of Dioscorea alata Lirm. sp. With rot index,weight loss rate,browning degree（ BD）,total soluble solids（ TSS） content,malondialdehyde（ MDA） content,polyphenol oxidase（ PPO） activity and peroxidase（ POD） activity,DPPH· scavenging rate as evaluation indexes,the preservation effect of the prepared freshkeeping agents on D. alata during the cold storage period was analyzed. The results showed that prochloraz added with nano-titanium dioxide significantly prolonged the storage life,reduced the rot rate and weight loss rate,and slowed the loss of pulp of D. alata. The preservation effect of complex fresh-keeping agent of prochloraz diluent（ 475 ×） and nano-titanium dioxide（ 1. 0%） was better than that of other treatments.

关 键 词：纳米钛 农业 科技创新 发展现状 

分 类 号：F323[经济管理—产业经济]