A kind of production technology of wolfberry essential oil and edible meal powder

Abstract

The present invention provides a production process of medlar essential oil and edible meal powder. The production process comprises: pressing medlar or seed thereof into a billet, carrying out subcritical extraction, carrying out solid-liquid separation after the extraction to obtain a solid wet meal and a mixed solution, carrying out desorption evaporation on the mixed solution to remove the extractant so as to obtain the crude oil, further carrying out molecular distillation refining on the crude oil to obtain the medlar functional essential oil, completely removing the residual solvent from the solid wet meal, carrying out low-temperature drying, puffing, milling, and powder making, and screening with a 100-180 mesh sieve so as to obtain the medlar edible meal powder. With the method of the present invention, the complex processes that the chemical and physical methods are used to perform deacidification, decolorizing, deodorization and the like in the traditional grease refining are eliminated, the process is short, the efficiency is high, the acid value of the essential oil after the molecule distillation is 0.21-0.23 mg / g, and the essential oil meets the national grade-one edible oil standard. In addition, the oil-extracted meal powder obtained through the method of the present invention still contains all the nutrition and active components and pharmacological functions of the medlar or seeds excluding the oil, and is the high-quality additive for preparing the food or health product.

Description

technical field [0001] The invention relates to the field of agricultural product processing, in particular to a processing technology of wolfberry essential oil and edible meal powder. Background technique [0002] Lycium barbarum (Lyciun barbarum L) is the dry and mature fruit of Lycium chinense Mill (Lycium chinense Mill), a traditional Chinese herbal medicine and health food in my country. [0003] The medical records of all dynasties in my country have clearly recorded the pharmacological effects of wolfberry: wolfberry is flat in nature, sweet in taste, enters the two meridians of sweet and sweet, and has the effects of nourishing kidney, nourishing yin and essence, nourishing liver and eyesight, strengthening waist and tendons. [0004] According to the "Pharmacopoeia of the People's Republic of China", wolfberry can nourish the liver and kidney, benefit the essence, and is used to treat dizziness, dizziness, tinnitus, soreness of the waist and knees, and diabetes. L...

AI Technical Summary

Problems solved by technology

Squeeze method, solvent leaching method, water enzymatic method, their main defects are high residual oil, high temperature, time-consuming, complicated refining process, and poor oil quality, protein denaturation in cake is not easy to reuse; Although critical has the advantages of simple process, high extraction rate, quickness, high efficiency, and environmental protection, it is difficult to manufacture high-pressure vessels due to high pressure, small volume, expensive cost, continuous production, and is not suitable for large-scale industrial production.