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A kind of method for irradiating fresh-keeping Cordyceps sinensis

A technology for fresh Cordyceps sinensis and Cordyceps sinensis is applied in the field of preservation of Cordyceps sinensis, which can solve the problems of complicated operation and high equipment dependence, and achieve the effects of reducing the growth rate of polyphenol oxidase activity and the decreasing rate of soluble protein content.

Active Publication Date: 2022-02-01
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to overcome the defects of high dependence on equipment and cumbersome operation in the existing preservation methods of fresh Cordyceps sinensis, the present invention provides a method suitable for fresh-keeping Cordyceps sinensis, which is less dependent on equipment, easy to operate, and the quality of fresh Cordyceps sinensis preserved for a long time is good

Method used

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  • A kind of method for irradiating fresh-keeping Cordyceps sinensis

Examples

Experimental program
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Effect test

Embodiment 1

[0063] At 0 ° C, the head, subtots and worms collected by the mud in the origin were cleaned in the head, subtots and worms collected by the mud, and the fresh winter insects after cleaning was placed in a mass of 0.1% in the calcium lactate solution. Ultrasonic cleaning 5 times (power 250W, frequency 120 Hz, temperature 0 ° C, time 5 / time), 0. ° C drained surface moisture.

[0064] Preparation of preservative: 3 mmol / l sorbitol, 3 mmol / lvc, 6 μmol / L plant acid, L-cysteine ​​concentration of 0.4 mg / kg, 30 mg / mg Ethanol extract, 50mg / L shell Sugar, 100mg / L Lactic Acid Streptococcus Antibacterial Peptide (Nisin, Manufacturer: Shandong Freda Biotechnology Co., Ltd.).

[0065] Preparation of ethanol extract of Cordyceps sinensis fermentation: Costiocyterami cultured in liquid fermentation medium (including potato, soy, sucrose, glucose, protein, yeast cream, mineral salt and vitamin), 26 ° C culture 7d, The supernatant was centrifuged to obtain a fermentation of Cordyc...

Embodiment 2

[0069] At 10 ° C, the head, subtots and worms collected by the mud with linear water were cleaned in sequential chili-chords, and the fresh winter worms after cleaning were placed in a mass percentage concentration of 0.5%. Ultrasonic cleaning 1 time (power 1200W, frequency 40 kHz, temperature 10 ° C, time 5 min / time), 10 ° C drained surface moisture.

[0070] Preparation of preservative: 1 mmol / l sorbitol, 1 mmol / L is also Vc, 9 μmol / L plant acid, L-cysteine ​​concentration of 0.8 mg / kg, 100 mg / ml Cordyceps extract, 200mg / L Shell oligosaccharide, 200 mg / l Streptomyxide antibacterial peptide (ε-polylysine, ε-polylysine, manufacturer: Zhengzhou Bai Na Buddha Biological Engineering Co., Ltd.);

[0071] Preparation of ethanol extract of Cordyceps Summer Grass Fermentation Liquid: Turning Cordyceps Separami is activated in liquid fermentation medium (including potato, soybeans, sucrose, glucose, protein, yeast cream, mineral salt and vitamin), 7d at 24 ° C, The superna...

Embodiment 3

[0075] At 5 ℃, the origin of the linear water collected with a soil Cordyceps head, child seat, and the mixture was washed worms; Cordyceps cleaned fresh mass percent was placed 0.5% calcium lactate solution ultrasonic cleaning three times (power 600W, frequency 80Hz, temperature between 5 ℃, time 7min / times), 5 ℃ drain surface moisture.

[0076] Preservation solution preparation: 2mmol / L sorbitol, 2mmol / L iso Vc, 8μmol / L phytic acid, L- cysteine ​​concentration of 0.6mg / kg, 60mg / mL of fermentation broth sinensis ethanol extract, 150mg / L chitooligosaccharide, 150mg / L Pediococcus Peptide (PediocinPA-1, to the Pediococcus acidilactici P.acidilactici, Pediococcus beer P.cerevisicae, Pediococcus pentosaceus Pediococcus sp P.pentosaceus like broth).

[0077] Preparation of ethanol extract of Cordyceps sinensis fermentation broth: After activation Cordyceps strain was inoculated in a liquid fermentation medium (including potato, soybean, sucrose, glucose, peptone, yeast ...

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Abstract

The invention provides a method for preserving freshness of Cordyceps sinensis by irradiation method, which relates to the technical field of preservation of Cordyceps sinensis. The fresh Cordyceps sinensis is first soaked in a preservation liquid, and then packaged in a modified atmosphere, and the packaged Cordyceps sinensis is irradiated to obtain 60 Coγ-rays or 5-10 MeV electron beams irradiate the modified atmosphere packaged Cordyceps sinensis, the irradiation dose is 0.1-1.5kGy, and the unevenness is ≤1.25, so as to realize the preservation of Cordyceps sinensis. As shown in the examples of the present invention, using the method of the present invention to preserve fresh Cordyceps sinensis, the weight loss rate, soluble protein content decrease rate and polyphenol oxidase activity growth rate of Cordyceps sinensis are significantly reduced compared with the prior art, The preservation time can reach at least 75 days. Under the radiation dose defined in the present invention, long-term and effective fresh-keeping can be achieved for the complex of animal-fungal tissues such as Cordyceps sinensis without causing significant damage to Cordyceps sinensis.

Description

Technical field [0001] The present invention relates to a Cordyceps preservation technology, and particularly relates to a method for preservation of Cordyceps radiation method. Background technique [0002] Cordyceps sinensis is an advanced tonic valuable medicines, nutrients and contain a variety of active ingredients, including nucleosides, polysaccharides, sterols, fatty acids, proteins, peptides and other volatile components, the body having antitumor cell injury, regulation of the immune system, promote repair, anti-free radical, anti-oxidation, anti-aging, protect the cardiac and vascular cells, improve cardiovascular function, protect the liver, kidney protection, respiratory system, regulating blood system and regulating blood lipids and other functions. [0003] Most currently available dry Cordyceps sinensis, Cordyceps during drying a large amount of volatile components will evaporate, and some nutrients will be lost, the active ingredient will be deactivated, while ta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L3/26A23L3/3562A23L3/3544A23L3/3508A23L3/3535A23L3/3463A23L3/3526A23L3/3418
Inventor 毕宏涛魏立新肖远灿杜玉枝杨红霞
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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