Compound essential oil as well as preparation method and application thereof

A compound essential oil and extraction technology, applied in application, essential oil/fragrance, food preservation, etc., can solve the problems of complex and diverse ingredients, low utilization rate, high production cost, etc., and achieve simple raw material ratio, high active ingredients, non-toxic side effects

Inactive Publication Date: 2020-09-01
CHANGSHA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, a variety of plant essential oils are usually compounded to obtain compound essential oils to achieve complementary and enhanced curative effects. For example, a patent with application number 201810570138.3 discloses a compound antibacterial essential oil, which contains the following raw materials in weight ratio : Juniper essential oil 5-10 parts, jojoba essential oil 1-2 parts, geranium ess

Method used

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  • Compound essential oil as well as preparation method and application thereof
  • Compound essential oil as well as preparation method and application thereof
  • Compound essential oil as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Get pulverized into 40 order cloves and rosemary, take mixed sample 20g respectively (raw material cloves and rosemary mass ratio M=1:0; 9:1; 7:1; 5:1; 3:1; 1: 1; 1:3; 1:5; 1:7; 1:9; 0:1) into a 100mL supercritical extraction kettle. At an extraction temperature of 30°C and an extraction pressure of 30 MPa, one part of clove essential oil, one part of rosemary essential oil and 9 parts of compound essential oil were extracted.

[0047] The following clove essential oil, rosemary essential oil and compound essential oil prepared in Example 1 are tested for activity

[0048] 1. Detection method

[0049] 1.1. Determination of antioxidant activity by DPPH method

[0050]Weigh about 0.0100g of essential oil, dissolve and dilute 500 times with absolute ethanol to obtain an essential oil sample with a concentration of 0.042mg / mL. Take a total of 11 10mL volumetric flasks. Divided into blank (1), control group (5) and experimental group (5) a total of 3 groups. Take 1mL, 2...

Embodiment 2

[0094] The influence of different conditions on oil yield when embodiment 2 prepares compound essential oil

[0095] The crushed cloves and rosemary are mixed according to the mass ratio of 1:3 to obtain compound powder, and then the essential oil is extracted according to the following conditions, and the extracted essential oil is bottled, sealed, refrigerated, and set aside. Calculate the oil yield according to formula (2). (The fluctuation of gas flow rate is relatively large, and the present embodiment uses CO 2 The flow rate is controlled at about 2.5L / min)

[0096] Oil yield = quality of essential oil / quality of compound raw materials × 100% (2)

[0097] 1. Single factor analysis

[0098] 1) Effect of extraction time on oil yield

[0099] Take 5 parts of compound powder, each 10g, under the conditions of temperature 40°C, pressure 30Mpa, degree of pulverization 60 mesh, with supercritical CO 2 The instrument carries out the extraction and calculates the oil yield...

Embodiment 3

[0114] Example 3 Application of compound essential oil (mass ratio of clove and rosemary raw materials is 1:1) to red grape preservation

[0115] Mix the compound essential oil (mass ratio of clove and rosemary raw materials: 1:1): acetone = 1:10, fill it up with sterile water, and prepare the concentrations of 1mL / L, 3mL / L, 5mL / L, and Acetone and sterile water were used as controls. The red grapes were soaked in different concentrations of treatment solutions for 1.5 min, then taken out and air-dried naturally. Pack it in a plastic wrap bag and store it in a 15°C incubator.

[0116] 1. Preparation and activity determination of polyphenol oxidase activity (PPO) enzyme solution

[0117] 1) Preparation of enzyme solution: Take 10 g of pulp, add 0.5 g of PVP to 20 mL of 0.2 mol / L phosphate buffer (pH=6.4), grind in an ice bath, centrifuge at 12,000 rpm at 4°C for 20 min, and take the supernatant to measure the enzyme activity.

[0118] 2) Determination of enzyme activity: Add ...

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Abstract

The invention discloses compound essential oil as well as a preparation method and application thereof. The preparation method of the compound essential oil comprises the following steps: (1) crushingclove and rosemary into 20-60 meshes, and mixing the clove and the rosemary according to the mass ratio of 1: (1-3) to obtain a pretreated material; and (2) putting the pretreated material obtained in the step (1) into a supercritical extraction kettle, and performing extraction at the extraction temperature of 40-60 DEG C under the extraction pressure of 30-50MPa for 40-50min to obtain the compound essential oil. The compound essential oil provided by the invention is simple in raw material ratio, the obtained compound essential oil is high in content of active ingredients and relatively high in antioxidant and bacteriostatic activity, and the preparation process is clean and environment-friendly. Compared with traditional chemical preservatives and the like, the compound essential oil provided by the invention is green, safe and pollution-free, has no toxic or side effect on human health, and has an excellent preservation effect when used for fruit preservation.

Description

technical field [0001] The invention relates to the technical field of compound essential oils, more specifically, to a compound essential oil and its preparation method and application. Background technique [0002] Essential oils are volatile aromatic substances extracted from the flowers, leaves, stems, roots or fruits of plants through steam distillation, extrusion, cold soaking or solvent extraction. It usually has the following functions: 1) It can stimulate the front lobe of the brain to secrete two hormones, endorphin and enkephalin, so that the spirit presents a comfortable state; 2) It can sterilize and reduce inflammation, prevent infectious diseases, prevent inflammation, prevent spasm, promote Cell metabolism and cell regeneration functions; 3) Strengthen the immune function of the respiratory tract, sweating or antipyretic effect, and reduce phlegm; 4) Can be applied to various skins, exerting firming and soothing properties, etc. [0003] However, in the prio...

Claims

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Application Information

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IPC IPC(8): C11B9/02C11B9/00A23B7/154
CPCC11B9/025C11B9/0061C11B9/0038A23B7/154A23V2002/00
Inventor 罗金花刘琳琪赵晨曦
Owner CHANGSHA UNIVERSITY
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