Production process of eugenol for flavoured product

A production process and eugenol technology, applied in the field of eugenol production technology, can solve problems such as poor anti-discoloration performance, and achieve the effects of improving anti-discoloration performance and being widely used

Active Publication Date: 2015-05-20
厦门琥珀香精股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor discoloration resistance of eugenol produced by the existing process in perfuming products, especially in alkaline matrix products, the invention provides a eugenol production process that can be used for perfuming prod

Method used

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  • Production process of eugenol for flavoured product
  • Production process of eugenol for flavoured product
  • Production process of eugenol for flavoured product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A. Get 50g clove leaf oil and place it in a vacuum distillation device for vacuum distillation, vacuum decolorization at -0.098MPa, collect the fraction at 120°C-160°C, and score 46.6g of white clove leaf oil;

[0020] B, get 40g of the clove leaf oil that A obtains, add 267g of 3%NaOH solution, stir reaction, leave standstill liquid separation, water layer extracts with 2g cyclohexane, liquid separation obtains water layer and is sodium eugenol aqueous solution;

[0021] C, the sodium eugenol aqueous solution that B obtains with 20% H 2 SO 4 The solution is neutralized until the pH of the water layer is 5-7, and the liquid is separated by standing to obtain the lower layer, which is the crude eugenol a;

[0022] D, add 0.1% EDTA-2Na solution equal to the volume of eugenol crude product a to the eugenol crude product a obtained in C, stir for 15 minutes, leave to stand for liquid separation, and wash to obtain the separation of lower layer eugenol crude product b;

[...

Embodiment 2

[0025] A, 1000g clove leaf oil is added to the distillation pot, vacuum decolorization is carried out under vacuum 760mmHg, the fraction under 120 ℃-160 ℃ is collected, and white clove leaf oil is scored 965g;

[0026] B, get 960g of the clove oil that A obtains, add 10%NaOH solution of 1920g, stir reaction, leave standstill liquid separation, water layer extracts with 48g cyclohexane, liquid separation obtains water layer and is sodium eugenol aqueous solution;

[0027] C, the sodium eugenol aqueous solution that B obtains with 50% H 2 SO 4 The solution is neutralized until the pH of the water layer is 5-7, and the liquid is separated by standing to obtain the lower layer, which is the crude eugenol a;

[0028] D, add 0.5% EDTA-2Na solution equal to the volume of eugenol crude product a to the eugenol crude product a obtained in C, stir for 15 minutes, leave to stand for liquid separation, wash with water to separate the lower layer of eugenol crude product b;

[0029] E. P...

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Abstract

The invention discloses a production process of eugenol for a flavoured product. The production process disclosed by the invention comprises the following steps of: decompressing and distilling by taking clove leaf oil as the raw material, then, adding sodium hydroxide to stir and react, standing to layer, neutralizing a water layer by using sulphuric acid solution to obtain crude carophyllin, adding EDTA-2Na complex metal ion again, and finally, decompressing, distilling and rectifying to obtain the final product, namely eugenol. Compared with the eugenol product produced by using the existing production process, the metal ion content of the eugenol produced by the production process disclosed by the invention is greatly reduced; and the colour change resistant property and the safety property of the product are obviously increased.

Description

technical field [0001] The invention relates to a eugenol production process, in particular to a eugenol production process for perfuming products. Background technique [0002] Eugenol has a strong clove aroma and is insoluble in water. It can be used in perfume essences and various cosmetic essences and soap essence formulations. Eugenol products currently on the market are mainly based on clove essential oil rich in eugenol as raw material, first neutralized with dilute NaOH solution, eugenol is dissolved in lye, and the terpene components are removed by liquid separation to obtain sodium eugenol solution; Re-neutralize the eugenol with acid solution, and separate the liquid to obtain the crude eugenol. The crude eugenol is distilled under reduced pressure to obtain the finished eugenol product. However, the eugenol produced by this method has poor discoloration resistance due to high metal ion content, especially in white substrates such as shampoos and shower gels, as...

Claims

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Application Information

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IPC IPC(8): C07C43/23C07C41/34C11B9/00
CPCC07C41/44C07C43/23
Inventor 张森雄
Owner 厦门琥珀香精股份有限公司
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