Composite film forming preservative for large yellow croakers and preparation method for composite film forming preservative

A technology of large yellow croaker and antistaling agent, which is applied in the direction of preservation of meat/fish with acid and preservation of meat/fish with chemicals, etc. It can solve the problems of limited effect and singleness of antistaling agent for large yellow croaker, achieve good color protection, and have broad application prospects , the effect of reasonable and scientific formula

Active Publication Date: 2015-02-18
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of limited and single effects of large yellow croaker preservatives in the prior art, and provides a large yellow croaker composite film-forming preservative with reasonable and scientific formula, good safety, prolonging the fresh-keeping time of large yellow croaker and improving the fresh-keeping effect

Method used

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  • Composite film forming preservative for large yellow croakers and preparation method for composite film forming preservative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A compound film-forming preservative for large yellow croaker, composed of the following components in mass percentage: 0.5% sodium citrate, 0.3% sodium isoVC, 1% vitamin C, 1% erythritol, 0.1% apple branch polyphenols, 0.1% gluconolactone, 3% disodium EDTA, 0.2% chitosan, 1% pseudophysalis sugar gum, and the balance is water.

[0024] The preparation method of this large yellow croaker composite film-forming preservative comprises the following steps:

[0025] (1) Preparation of apple branch polyphenols

[0026] Dry the apple branches after de-leafing to constant weight at 25±2°C and crush them to a powder with a diameter of <1mm. Add an ethanol solution whose mass is 8 times that of the dried apple branches. The content is 70%, ultrasonic leaching for 30min, the temperature of ultrasonic leaching is 20°C, the ultrasonic frequency is 100Hz, suction filtration, when the filtrate is evaporated under reduced pressure until there is no alcohol smell, centrifuge at 3500r / m...

Embodiment 2

[0032] A compound film-forming preservative for large yellow croaker, consisting of the following components in mass percentage: 1% sodium citrate, 0.5% sodium isoVC, 3% vitamin C, 3% erythritol, 0.3% apple branch polyphenols, 0.3% gluconolactone, 5% disodium EDTA, 0.3% chitosan, 5% pseudophysalis sugar gum, and the balance is water.

[0033] The preparation method of this large yellow croaker composite film-forming preservative comprises the following steps:

[0034] (1) Preparation of apple branch polyphenols

[0035] Dry the apple branches after de-leafing to constant weight at 25±2°C and crush them to a powder with a diameter of <1mm. Add an ethanol solution whose mass is 10 times that of the dried apple branches. The content is 70%, ultrasonic extraction for 60min, the temperature of ultrasonic extraction is 25°C, the ultrasonic frequency is 120Hz, suction filtration, when the filtrate is evaporated under reduced pressure until it has no alcohol smell, centrifuge at 4000...

Embodiment 3

[0041] A compound film-forming preservative for large yellow croaker, composed of the following components in mass percentage: 0.8% sodium citrate, 0.4% sodium isoVC, 2% vitamin C, 2% erythritol, 0.2% apple branch polyphenols, 0.2% gluconolactone, 4% disodium EDTA, 0.25% chitosan, 2% pseudophysalis sugar gum, and the balance is water.

[0042] The preparation method of this large yellow croaker composite film-forming preservative comprises the following steps:

[0043] (1) Preparation of apple branch polyphenols

[0044] Dry the apple branches after de-leafing to constant weight at 25±2°C and crush them to a powder with a diameter of <1 mm. Add an ethanol solution whose mass is 9 times that of the dried apple branches. The volume percentage of ethanol in the ethanol solution is The content is 70%, ultrasonic leaching for 40min, the temperature of ultrasonic leaching is 22°C, the ultrasonic frequency is 110Hz, suction filtration, when the filtrate is evaporated under reduced p...

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Abstract

The invention discloses a composite film forming preservative for large yellow croakers. The composite film forming preservative consists of the following components in percentage by mass: 0.5 to 1 percent of sodium citrate, 0.3 to 0.5 percent of sodium erythorbate, 1 to 3 percent of vitamin C, 1 to 3 percent of erythritol, 0.1 to 0.3 percent of apple branch polypehnol, 0.1 to 0.3 percent of glucolactone, 3 to 5 percent of EDTA (ethylene diamine tetraacetic acid) disodium, 0.2 to 0.3 percent of chitosan, 1 to 5 percent of nicandra physaloides carbohydrate gum and the balance of water. According to the composite film forming preservative for large yellow croakers, the formula is reasonable and scientific, each component is safe and nontoxic, and the edible safety is high; the components are synergistically promoted, so that the composite film forming preservative has high color protection, preservation and anticorrosive performance, the preservation time of large yellow croakers can be greatly prolonged on the premise of ensuring the edible quality and sensory quality of large yellow croakers, and remarkable preservation effects are achieved. The invention also discloses a preparation method for the composite film forming preservative for large yellow croakers. The preparation method comprises the following steps: (1) preparing apple branch polypehnol; (2) preparing nicandra physaloides carbohydrate gum; (3) performing compounding. The steps of the preparation method are simple, and the preparation method is high in operability and suitable for large-scale production and application.

Description

technical field [0001] The invention relates to a preservative, in particular to a compound film-forming preservative for large yellow croaker and a preparation method thereof. Background technique [0002] Large yellow croaker, also known as yellow croaker, large yellow croaker, etc., is one of the four traditional seafood and the main economic fish in my country. Large yellow croaker is rich in nutrients such as protein and fat. Due to its high water content and high fat characteristics, the fish meat is easily spoiled. Factors such as autolytic enzyme reaction, microbial reproduction, fat oxidation, and external pollution in fish will cause the quality of fish to deteriorate, produce bad smell, and cause the decline of sensory quality of fish. Therefore, the fresh-keeping method to large yellow croaker just seems very important. [0003] At present, the commonly used fresh-keeping methods of large yellow croaker include low-temperature preservation, chemical preservatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/12A23B4/20
Inventor 李佩佩郭远明张小军龙举严忠雍陈荫
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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