Application Research on the Cultivation of Myrciaria cauliflora and Its Extract Promoted by Scientific and Technological Services
With the aim of providing scientific and technological service,our team has successfully cultivated the tropical fruit Myrciaria cauliflo-ra in Longdong Village,Jiexi County,which enriched the industrial layout of the region and helped the rural revitalization.The extraction rate of polyphenols from Myrciaria cauliflora leaves was studied by supercritical extraction technology.The conditions of temperature,pressure and time were discussed.The composite film was prepared by the extract and chitosan.The properties of the composite film such as thickness,trans-parency,solubility,antioxidant and preservation were determined.The results showed that the optimal conditions for the extraction of polyphe-nols were as follows:45 ℃,25 MPa,120 min,and the extraction rate was 23.07％.The extract in the composite film improved the scavenging rate of DPPH free radical.The composite film could reduce the weight loss rate and prolong the shelf life of strawberry.
Scientific and Technical ServiceMyrciaria CaulifloraChitosanComposite FilmFresh-keeping
万方数据
维普
