Method for extracting rose essential oil by molecular sieve extracting agent

Abstract

The invention belongs to the technical field of flower essential oil extraction, and in particular relates to a method for extracting rose essential oil by a molecular sieve extracting agent. By utilization of the selective adsorption effect of the molecular sieve, the soakage capability of the extracting agent on the rose as well as the emulsification and solubilizing effects on the essential oil in the rose are improved, and the dispersing amount of the essential oil in the rose in the extracting agent is increased. Fresh incompletely bloomed roseleaves, of which the receptacles are cut, are subjected to pretreatment, extraction, filtration under reduced pressure, steam distillation and oil-water separation, the obtained product does not contain pigment, is pure and bright and has fragrant and strong odor, the yield is 0.020 to 0.025 percent, and the extraction rate of the essential oil is 11 percent higher than that of the essential oil in the traditional industrial extraction method. The molecular sieve extracting agent with the selective adsorption effect instead of an organic solvent is used for extracting the rose essential oil for once in a water solution, so the problem of environmental pollution is solved, the problems that the traditional extraction process has high energy consumption and low oil yield are solved, and the method has the advantages of recyclability of the molecular sieve extracting agent, operation safety, low production cost and the like.

Description

technical field [0001] The invention belongs to the technical field of flower essential oil extraction, in particular to a method for extracting rose essential oil with a molecular sieve extractant. Background technique [0002] Rose essential oil is the most expensive essential oil in the world, and has the reputation of "after essential oil". Rose essential oil has the effect of adjusting or relieving women's menopausal discomfort, cold palace, frigidity, dysmenorrhea and endocrine disorders, and its effect in beauty and skin care is especially important. Rose essential oil promotes the decomposition of melanin through the principle of nourishing the inside and outside, so as to lighten the spots, restore the elasticity and suppleness of the skin, and allow women to have healthy fair skin again. It is a cosmetic that is very suitable for women's beauty and skin care. Rose essential oil is an important raw material for making high-end perfumes, and its price is high. Rose...

AI Technical Summary

Problems solved by technology

The steam distillation method has high distillation temperature, long time, and high energy consumption, which can easily cause the transformation and deterioration of the active ingredients of the aroma; the solvent extraction method uses a large amount of toxic organic solvents, which seriously pollutes the product and the environment; the supercritical method, the equipment is complex and the operation Difficulty, high production cost; pressing method, low yield of essential oil

Combined with the published domestic and foreign patents for extracting essential oils from roses, most of them have complex process methods, use of environmentally polluting organic solvents, repeated extractions, repeated distillations, and high temperatures for extracting essential oils, which easily cause essential oils to oxidize and polymerize. And other adverse reactions, thus affecting the quality of the product or the shortcomings of low oil yield