Microcapsule slow-release pungent litse fruit essential oil capable of being applied to fresh keeping of meat products

Abstract

The invention relates to a method for extracting microcapsule slow-release pungent litse fruit essential oil capable of being applied to fresh keeping of meat products. The crushing particle size of dried pungent litse fruits is 40 meshes, the one-time feeding amount is 800 g, and the optimal technological parameters of supercritical CO2 extraction are as follows: the extraction pressure is 26 MPa, the extraction temperature is 46 DEG C, the extraction time is 148 min, and the extraction yield of the essential oil is up to 38.65%. Through analysis of physical and chemical indexes of the essential oil, it is found that the color L* value is 41.10, the a* value is 16.17, the b* value is 21.43, the relative density is 0.924, the saponification value is 195.29 mgKOH/g, the refractive index is 1.473, the peroxide value is 0.14 g/100 g, the acid value is 2.31 mgKOH/g, and all the indexes meet the requirements of the national standard. The optimal technological parameters for embedding the pungent litse fruit essential oil microcapsule are as follows: the ratio of a composite wall material is 1:1 (g/g), the ratio of a core material to a wall material is 1:5 (g/g), the solid content is 15%, the content of an emulsifier is 3%, the ratio of an emulsifier is 1:4 (g/g), the emulsification temperature is 40-50 DEG C, and the embedding rate of the pungent litse fruit essential oil microcapsule prepared under the conditions can reach 84.68%. The water content, the solubility and the bulk density are 3.05%, 91.04% and 0.35 g/cm<3> respectively.

Description

technical field [0001] The invention relates to the field of extracting process of japonica oil, in particular to a microcapsule slow-release jacaranda essential oil which can be applied to keep meat products fresh. Background technique [0002] Litsea pungens Hemsl., also known as wild pepper, pheasant pepper, litsea cubeba and Manshanxiang, is a small tree or deciduous shrub of the genus Litsea pungens Hemsl. It is one of the unique plant spice resources in my country. . It is native to southern China, mainly distributed in Zhejiang, Fujian, Hunan, Jiangxi, Guangxi, Sichuan, Guizhou, Yunnan and Taiwan, and also distributed in Japan, India, Indonesia and Malaysia. Plants of the genus Xingeria mainly contain chemical components such as steroids, lactones, flavonoids, alkaloids and lignin, which have strong inhibitory effects on bacteria and fungi. Since ancient times, Mujiangzi has been an important woody plant with the same source of medicine and food. Its roots, stems, le...

AI Technical Summary

Problems solved by technology

But at present, there are still many problems in the processing and utilization of wood ginger in our country: First, the wood ginger is only at the level of primary processing, and the deep processing is seriously lacking. The annual output of wood ginger oil in my country is as high as 4,000 tons, ranking first in the world, but our country The oil produced is mainly primary products, and some places even use soil methods, and the production value is low

The second is that the

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