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A kind of citral nanoemulsion under acidic condition and preparation method thereof

An acid condition, nanoemulsion technology, applied in food ingredients as emulsifier, oily food ingredients, food science and other directions, can solve the problems of easy degradation, unstable citral, etc., to reduce the degradation rate, technical progress is remarkable, reaction mild effects

Active Publication Date: 2018-07-31
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems existing in the prior art, the invention provides a kind of citral nanoemulsion under acidic condition and preparation method thereof, the citral nanoemulsion under this acidic condition and preparation method thereof have solved lemon Aldehyde is unstable and easy to degrade technical problems in acidic environment

Method used

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  • A kind of citral nanoemulsion under acidic condition and preparation method thereof
  • A kind of citral nanoemulsion under acidic condition and preparation method thereof
  • A kind of citral nanoemulsion under acidic condition and preparation method thereof

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Embodiment 1

[0070]A kind of citral nanoemulsion under acidic conditions, calculated by the total amount of 200g, its composition and content are as follows:

[0071]

[0072] The citral, Shanghai Titan Technology Co., Ltd., purity 98.0%;

[0073] Described emulsifier is polyoxyethylene sorbitan fatty acid ester, the chemically pure product of Sinopharm Chemical Reagent Co., Ltd.;

[0074] The oil phase is isopropyl palmitate, a chemically pure product of Sinopharm Chemical Reagent Co., Ltd.;

[0075] The acidic buffer is a disodium hydrogen phosphate-citric acid buffer with pH=2.0, a chemically pure product of Sinopharm Chemical Reagent Co., Ltd.

[0076] The preparation method of the citral nanoemulsion under the above-mentioned a kind of acidic condition specifically comprises the steps:

[0077] (1) preparing an acidic buffer solution with pH=2.0;

[0078] (2) After mixing the emulsifier and the acidic buffer solution, heat to 40° C., and stir to obtain uniformly dispersed water ...

Embodiment 2

[0083] A kind of citral nanoemulsion under acidic conditions, calculated by the total amount of 200g, its composition and content are as follows:

[0084]

[0085] The citral, Shanghai Titan Technology Co., Ltd., purity 98.0%;

[0086] Described emulsifier is gelatin, the chemically pure product of Sinopharm Chemical Reagent Co., Ltd.;

[0087] The oil phase is caprylic triglyceride;

[0088] The acidic buffer is a citric acid-sodium citrate buffer with pH=3.0, a chemically pure product of Sinopharm Chemical Reagent Co., Ltd.

[0089] The preparation method of the citral nanoemulsion under the above-mentioned a kind of acidic condition specifically comprises the steps:

[0090] (1) preparing an acidic buffer solution with pH=3.0;

[0091] (2) After mixing the emulsifier and the acidic buffer solution, heat to 50° C., and stir to obtain uniformly dispersed water phase components;

[0092] (3) obtain the uniformly dispersed oil phase component after mixing the citral and ...

Embodiment 3

[0096] A kind of citral nanoemulsion under acidic conditions, calculated by the total amount of 200g, its composition and content are as follows:

[0097]

[0098] The citral, Shanghai Titan Technology Co., Ltd., purity 98.0%;

[0099] Described emulsifier is sucrose fatty acid ester, the food-grade product of Mitsubishi Chemical Corporation of Japan;

[0100] The oil phase is simethicone oil, a chemically pure product of Sinopharm Chemical Reagent Co., Ltd.;

[0101] The acidic buffer is a citric acid-sodium hydroxide-hydrochloric acid buffer with pH=4.0, a chemically pure product of Sinopharm Chemical Reagent Co., Ltd.

[0102] The preparation method of the citral nanoemulsion under the above-mentioned a kind of acidic condition specifically comprises the steps:

[0103] (1) preparing an acidic buffer solution with pH=4.0;

[0104] (2) After mixing the emulsifier and the acidic buffer solution, heat to 60° C., and stir to obtain uniformly dispersed water phase componen...

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Abstract

The present invention discloses a geranialdehyde nanoemulsion under an acidic condition and a preparation method thereof. The geranialdehyde nanoemulsion under the acidic condition consists of the following raw materials in weight percentages: 0.1-1.5% of geranialdehyde, 0.5-2.0% of emulsifier, 1.0-15.0% of oil phase and the balance being an acid buffer solution at a pH of 2.0-5.0. The present invention also provides a preparation method of the geranialdehyde nanoemulsion. Firstly the acid buffer solution at the pH of 2.0-5.0 is formulated and then the emulsifier and the buffer solution are mixed to obtain an aqueous phase component. The geranialdehyde and the oil phase are mixed to obtain an oil phase component. The aqueous phase component is added into the oil phase component to form a macroemulsion. The macroemulsion is then homogenized to obtain a geranialdehyde containing nanoemulsion which is uniform in particle size distribution. By a gas chromatographic analyzer test, after the prepared geranialdehyde nanoemulsion stored for two weeks, the geranialdehyde nanoemulsion still contains a large amount of geranialdehyde and less degradation products, indicating that the geranialdehyde nanoemulsion improves the stability of geranialdehyde in an acidic environment.

Description

technical field [0001] The invention belongs to the field of food chemical industry, and relates to an edible essence nanoemulsion, specifically a citral nanoemulsion under acidic conditions and a preparation method thereof. Background technique [0002] Citral is an open-chain monoterpenoid composed of two geometric isomers: citral A (geranial, trans), citral B (neral, cis). Citral mainly exists in maple grass oil and litsea cubeba oil, and is a colorless or slightly yellow liquid with a strong lemon fragrance. Citral is an important flavor component, widely used in beverages, medicine, toothpaste, perfume, chewing gum and cigarettes. In addition, citral can also be used as a raw material for the production of VA, ionone, and methyl ionone. [0003] Citral is prone to oxidative degradation. Under acidic conditions, citral undergoes a series of cyclization reactions and oxidation reactions to degrade to produce odorous substances. Under low pH environment, citral is oxid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L27/20A23L2/56
CPCA23L2/56A23V2002/00A23V2200/222A23V2250/18A23V2250/5432
Inventor 田怀香徐婷李丹凤胡静陈臣
Owner SHANGHAI INST OF TECH
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