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Method for embedding hydroxytyrosol by using gelatinized ginkgo starch via spraying

A technology of gelatinized starch and hydroxytyrosol, which is applied in food forming, food science, application, etc., can solve the problems of easy oxidation and decomposition, poor stability, etc., and achieve the goal of prolonging the storage period, improving stability, safety and non-toxic side effects Effect

Active Publication Date: 2018-06-15
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the current situation of poor stability and easy oxidative decomposition of hydroxytyrosol under light conditions, the present invention adopts spray technology to provide a method for improving the storage stability of hydroxytyrosol. This method has simple processing process, high spray drying efficiency, and powder better performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] 1) Preparation of gelatinized starch: remove the outer skin and inner skin of ginkgo, extract ginkgo starch, deproteinize and degrease, and gelatinize under certain conditions: gelatinization temperature 80°C; gelatinization time 40 min; Ginkgo starch and water The ratio of 7:1, freeze-dried to obtain dry powder;

[0022] 2) Grinding: Grinding the freeze-dried ginkgo gelatinized starch and passing through a 100-mesh sieve;

[0023] 3) Emulsion preparation: Ginkgo gelatinized starch was redissolved in water to prepare a starch gel emulsion with a concentration of 10%, and an aqueous solution of hydroxytyrosol with a concentration of 10mg / ml was added to the starch gel emulsion, with a volume of 8%, and put Stir in vortex stirring, and homogenize in a homogenizer to 30 MPa;

[0024] 4) Spray drying: The spray drying atomization method adopts nozzle airflow atomization, the inlet air temperature is 170°C, and the outlet air temperature is 100°C;

[0025] 5) Packing: brow...

example 2

[0028] 1) Preparation of gelatinized starch: remove the outer skin and inner skin of ginkgo, extract ginkgo starch, deproteinize, degrease, and then gelatinize under certain conditions: gelatinization temperature 100°C; gelatinization time 60 min; ginkgo starch and water The ratio of 7:1, freeze-dried to obtain dry powder;

[0029] 2) Grinding: Grinding the freeze-dried ginkgo gelatinized starch and passing it through a 120-mesh sieve;

[0030] 3) Emulsion preparation: Ginkgo gelatinized starch was redissolved in water to prepare a starch gel emulsion with a concentration of 8%, and an aqueous solution of hydroxytyrosol with a concentration of 15mg / ml was added to the starch gel emulsion, with a volume of 10%, and put Stir in vortex stirring, and homogenize in a homogenizer to 30 MPa;

[0031] 4) Spray drying: The spray drying atomization method adopts nozzle airflow atomization, the inlet air temperature is 180°C, and the outlet air temperature is 110°C;

[0032] 5) Packing...

example 3

[0035] 1) Preparation of gelatinized starch: remove the outer skin and inner skin of ginkgo, extract ginkgo starch, deproteinize and defat, and gelatinize under certain conditions: gelatinization temperature 80°C; gelatinization time 60 min; ginkgo starch and water The ratio of 4:1, freeze-dried to obtain dry powder;

[0036] 2) Grinding: Grinding the freeze-dried ginkgo gelatinized starch and passing it through a 80-mesh sieve;

[0037] 3) Emulsion preparation: Ginkgo gelatinized starch was redissolved in water to prepare a starch gel emulsion with a concentration of 8%, and an aqueous solution of hydroxytyrosol with a concentration of 10mg / ml was added to the starch gel emulsion, with a volume of 10%, and put Stir in vortex stirring, homogenize in a homogenizer to 50 MPa;

[0038] 4) Spray drying: The spray drying atomization method adopts nozzle airflow atomization, the inlet air temperature is 150°C, and the outlet air temperature is 90°C;

[0039] 5) Packing: brown or o...

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Abstract

The invention discloses a method for embedding hydroxytyrosol by taking gelatinized ginkgo starch as a wall material and adopting spray drying technology. The method comprises: taking ginkgoes as a raw material, removing hulls and inner peel, performing ginkgo starch extraction, deproteinization and fat removal, performing gelatinization at a certain condition to prepare gelatinized starch, and performing freeze drying; taking a certain amount of gelatinized ginkgo starch, performing redissolution to prepare a uniform starch gel solution, adding a hydroxytyrosol solution for eddy mixing, performing high-pressure homogenization, and performing spray drying with the air intake temperature being 130-200 DEG C and the air-out temperature being 60-120 DEG C; and packaging the dried gelatinized-ginkgo-starch-embedded hydroxytyrosol powder in a brown or dark sealing bag and waiting for embedding rate determination. According to the preparation method, the defect that the quality of hydroxytyrosol is severely reduced in a storage process of hydroxytyrosol is overcome. The method is simple in treatment process, and the adopted gelatinized ginkgo starch is free of toxic or side effect. Through the sealing shell formed through hydroxytyrosol embedding, the problem of photosensitivity and oxidizability possibility of hydroxytyrosol is solved, and loss of biological components is reduced. The stability of hydroxytyrosol is improved, and the storage period is prolonged.

Description

technical field [0001] The invention belongs to the technical field of bioactive storage. Background technique [0002] Hydroxytyrosol is a natural polyphenolic compound found in olive oil and wastewater from olive oil processing. It has a variety of biological and pharmacological activities, and has positive effects on arteriosclerosis, high blood pressure, heart disease, anti-cancer and anti-cancer, and anti-aging. Hydroxytyrosol is sensitive to light and is easily oxidized and decomposed under light conditions, so it is necessary to store it away from light. [0003] Microcapsules refer to micro-containers or packages with polymer walls developed from natural or synthetic polymer materials. The purpose of microencapsulating substances is mainly to improve the physical properties of substances, control release, isolate amphoteric substances, and shield taste and odor. Since the target is isolated from the external environment after forming microcapsules, it is free from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/00A23P10/30
CPCA23L33/00A23P10/30
Inventor 张彩虹黄立新谢普军邓叶俊成江
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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