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Preparation method of unsaturated fatty acid microcapsules

A technology of unsaturated fatty acids and microcapsules, which is applied in the field of microcapsule preparation, can solve problems such as prolonging product shelf life, affecting product shelf life stability, and microcapsule deterioration, so as to improve shelf life stability and raw material utilization , to avoid the effect of deterioration

Pending Publication Date: 2021-04-30
浙江远大生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to overcome the unsaturated fatty acid microcapsule preparation process in the prior art, when preparing the emulsion, the powdery wall material raw material is easy to generate dust, the waste of raw materials is serious, and it will pollute the environment; and the emulsion before spray drying Without sterilization, the prepared microcapsules are easy to deteriorate under the action of microorganisms, which affects the shelf-life stability of the product. A method for preparing unsaturated fatty acid microcapsules is provided. When preparing the emulsion, a gas-solid separator is used. The vacuum emulsification tank is used for shear emulsification, which effectively improves the utilization rate of raw materials; and the emulsion is sterilized before spray drying, which avoids the deterioration of microcapsules under the action of microorganisms and prolongs the shelf life of the product

Method used

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  • Preparation method of unsaturated fatty acid microcapsules
  • Preparation method of unsaturated fatty acid microcapsules
  • Preparation method of unsaturated fatty acid microcapsules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the vacuum emulsification tank used in the preparation of the emulsion in Example 1 includes a tank body 1 and a tank mounting bracket 9 arranged outside the tank body. Two lifting lugs 10 arranged symmetrically along the radial direction of the tank body are arranged on the tank body mounting bracket. The top of the tank is equipped with a liquid feed port 2, a vacuum port 3 and a vacuum pressure gauge 7, the bottom of the tank is equipped with a high-shear bottom emulsifier 4 and a discharge port 5, and the lower part of the side wall of the tank is provided with a sampling port 8. There is a gas-solid separator in the tank.

[0034] The gas-solid separator includes a solid-gas feed pipe 601, an exhaust pipe 602 and a powder outlet pipe 603 connected at one end. The solid-gas feed pipe is arranged at the bottom of the tank along the horizontal direction, and the other end protrudes from the side wall of the tank. There is a solid gas inlet...

Embodiment 2

[0041] Such as figure 2 As shown, the gas-solid separator in the vacuum emulsification tank used when preparing the emulsion in Example 2 includes a solid-gas feed pipe 601, an exhaust pipe 602 and a powder discharge pipe 601 connected at one end through a tapered separation portion 604 with an arc-shaped bottom surface. Pipe 603, the solid gas feed pipe communicates with the bottom of the side of the conical separation part, the exhaust pipe communicates with the top of the conical separation part, and the powder outlet pipe communicates with the bottom of the conical separation part. The other end of the solid-gas feed pipe protrudes from the side wall of the tank and is provided with a solid-gas feed port, the other end of the exhaust pipe extends to the top of the tank and is provided with an exhaust port, and the other end of the powder outlet pipe It extends to the bottom of the tank and is provided with a powder outlet, which is located above the emulsifier at the bott...

Embodiment 3

[0048] The structure of the vacuum emulsification tank used in Example 3 is the same as that in Example 2. A kind of method using above-mentioned vacuum emulsification tank to prepare EPA microcapsules, comprises the steps:

[0049] S1: Add water to the vacuum emulsification tank until the liquid level is above the solid gas inlet and powder outlet, and below the exhaust port, blow the wall material into the water in the tank along the solid gas inlet pipe with nitrogen gas, and adjust the pH to 5.0 , shear emulsification to obtain a pre-emulsion; wherein the wall material is lactose, maltodextrin and sodium starch octenyl succinate with a mass ratio of 10:10:80, the amount of water is 4 times the wall material quality, citric acid alone The concentration of glyceride in the pre-emulsion is 2wt%, and the concentration of vitamin E in the pre-emulsion is 4wt%;

[0050] S2: Add EPA to the pre-emulsion as the unsaturated fatty acid core material, and add monoglyceride citrate an...

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Abstract

The invention discloses a preparation method of unsaturated fatty acid microcapsules, which comprises the following steps: adding water into a vacuum emulsification tank provided with a gas-solid separator, blowing a wall material, an emulsifier and an antioxidant into the water in the vacuum emulsification tank by using inert gas through the gas-solid separator, and carrying out shear emulsification to obtain a pre-emulsified liquid; adding an unsaturated fatty acid core material into the pre-emulsified liquid, and sequentially performing shearing, emulsifying and homogenizing to obtain emulsified liquid; sterilizing the emulsified liquid; and carrying out spray drying on the sterilized emulsion, and sieving the obtained powder product to obtain the unsaturated fatty acid microcapsule. When the emulsified liquid is prepared, the vacuum emulsifying tank provided with the gas-solid separator is adopted for shearing and emulsifying, so that the utilization rate of raw materials is effectively improved; and the emulsified liquid is sterilized and then subjected to spray drying, so that the microcapsules are prevented from deteriorating under the action of microorganisms, and the shelf life of the product is prolonged.

Description

technical field [0001] The invention relates to the technical field of microcapsule preparation, in particular to a preparation method of unsaturated fatty acid microcapsules. Background technique [0002] Unsaturated fatty acid is a kind of fatty acid that constitutes body fat. It is an indispensable fatty acid for the human body, such as DHA, ARA, CLA, GLA, ALA, EPA, DPA, etc. It has important nutritional value, so it is widely used in the food field. Because unsaturated fatty acids are easily oxidized, a large amount of hydroperoxides will be generated after oxidation, and then broken and decomposed to produce a series of volatile and non-volatile substances with short carbon chains, such as aldehydes, ketones, alcohols , acid substances, etc. Most of these substances have pungent odors and are harmful to the human body. Therefore, powder products embedded in microcapsules are generally added to food to avoid oxidation. [0003] Existing unsaturated fatty acid microcapsu...

Claims

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Application Information

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IPC IPC(8): A23P10/30A23L33/12A23L3/00A23L5/00
CPCA23P10/30A23L33/12A23L3/00A23L5/00A23V2002/00A23V2200/30A23V2200/10A23V2200/02A23V2200/222A23V2250/186A23V2300/10A23V2250/5114A23V2250/612A23V2250/192A23V2250/182A23V2250/712A23V2300/24
Inventor 肖子豪张明王丽飞陈海勇张军桥张荣华于亚芹戴辉曾忠俊
Owner 浙江远大生物科技有限公司
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