Method for extracting essential oil from orange juicing peel and oil mixture

Abstract

The invention discloses a method for extracting an essential oil from an orange juicing peel and oil mixture, particularly discloses a way / method for linking a cup juicer and an oil grinding machine, and more particularly discloses an optimal method for mounting and configuring equipment. The method comprises the steps: directly obtaining a peel, oil and water mixture when oranges are juiced by using the oil grinding machine or the cup juicer, and collecting and conveying the peel, oil and water mixture to a spiral refiner for peel and oil separation; then, entering an oil and water mixture into a series of equipment to separate the essential oil in water; and finally, entering the essential oil into an essential oil storage tank, settling the essential oil, and then, flowing the essential oil into a packaging container and the water with very low oil content to enter a sedimentation tank, and entering the water into a spray water pipe of the cup juicer and the oil grinding machine through pumping and pressurizing so as to be recycled. The material delivery of a whole system and the material balance in a delivery process are considered in the method, and the method is convenient to operate, simple in installation and relatively high in water circular utilization ratio. The solid matter content, essential oil content and COD (Chemical Oxygen Demand) in wastewater generated by the peel and oil mixture can be up to the lowest, and the recovery rate of the essential oil in an orange processing process is up to an optimal value.

Description

technical field [0001] The invention belongs to the technical field of extraction methods of food essential oils, and in particular relates to a method for extracting essential oils from citrus juice peel oil mixture. Background technique [0002] Citrus juice is the most traded food in international trade except for grain. With the rapid development of the domestic citrus juice industry and the increasingly stringent requirements for the environment, the skin oil mixture produced during juicing must be perfectly treated, otherwise the waste water Essential oils will cause greater difficulty in wastewater treatment, and will seriously affect the decomposition and utilization of organic matter in wastewater by microorganisms. In addition, with the rapid development of the food industry in China, the demand for citrus flavors is increasing. China currently imports citrus essential oils each year accounting for about two-thirds of the total demand, which invisibly causes citru...

AI Technical Summary

Problems solved by technology

[0003] The water recycling rate in the supporting citrus juice peel oil mixture essential oil recovery system in the prior art is relatively low, generally between 1% and 30%; increase; the extraction rate of essential oil is not high, generally between 60% and 80%; the transportation of leather dregs is complicated, and the COD and oil content in wastewater are high and unstable, which brings great pressure to the comprehensive treatment of wastewater

Images