Preparation method for south China pine needle extractives and application of south China pine needle extractive in freshness of eggs

A pine needle extract and pine needle technology, applied in the field of plant extract research and application, can solve the problems of water-soluble substances in the composition, no poultry and egg preservation examples, traditional technology and methods, etc., achieve ideal extraction effect, improve antiseptic preservation , good biological effect

Inactive Publication Date: 2012-08-01
SHAOGUAN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method utilizes the antibacterial and antioxidant properties of slash pine water extract to preserve food, but there are defects in traditi

Method used

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  • Preparation method for south China pine needle extractives and application of south China pine needle extractive in freshness of eggs
  • Preparation method for south China pine needle extractives and application of south China pine needle extractive in freshness of eggs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of South China pine pine needle extract and its application in the preservation of poultry eggs, the process steps are:

[0025] Pine needle collection and treatment: Choose 500g of fresh, pollution-free and disease-free pine needles of South China pine needles from middle-aged forests, rinse them with clean water in time, drain them, and pulverize them with machine-made pulp;

[0026] Freeze-thaw multiple times Put the pine needle pulp under the storage conditions of -25℃ and 4℃ and freeze-thaw repeatedly 3 times with an interval of 8 hours;

[0027] Ethanol extraction Thaw the pine needle slurry, add 2.5 liters of 45% ethanol solution, reflux in a water bath at 75°C, extract for 12 hours, and filter the filtrate;

[0028] Filtration and concentration The filter residue is extracted again for 6 hours, the filtrate is filtered and combined with the filtrate, and concentrated under reduced pressure to an extract to obtain 65 g of South China pine needles ...

Embodiment 2

[0031] A preparation method of South China pine pine needle extract and its application in the preservation of poultry eggs, the process steps are:

[0032] Pine needle collection and treatment: Select 600g of fresh, pollution-free and disease-free pine needles of South China pine needles from middle-aged forests, rinse them with clean water in time, and drain them to pulverize machine-made pulp;

[0033] Freeze-thaw multiple times Put the pine needle pulp into the storage conditions of -20℃ and 4℃ and freeze-thaw repeatedly twice, with an interval of 8 hours each time;

[0034] Ethanol extraction Thaw the pine needle pulp, add 2.5 liters of 45% ethanol solution, reflux in a water bath at 75°C, extract for 10 hours, and filter the filtrate;

[0035] Filtration and concentration The filter residue was extracted again for 6 hours, and the filtrate was filtered and combined with the filtrate, and concentrated under reduced pressure to an extract to obtain 68 g of South China pine pine...

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Abstract

The invention relates to a preparation method for south China pine needle extractives and application of south China pine needle extractives in freshness of eggs. The preparation method comprises the steps of collecting and treating pine needles, then freezing and thawing repeatedly, performing ethanol digestion and finally filtering and concentration. The preparation method uses fresh, tender and non-toxic pine needles to be cleaned, dried and smashed, repeatedly freezes and thaws for 2 to 3 times, uses 45% of ethanol solution to perform digestion, and decompresses and concentrates to obtainpine needle extractives. The pine needle extractives are applied to freshness of eggs to prolong quality guarantee period. The preparation method for south China pine needle extractives and application of south China pine needle extractives in freshness of eggs are low in production cost, high in product yield, safe, reliable, green, free of pollution, antibacterial and capable of retaining freshness to achieve the purpose of prolonging shelf time of eggs.

Description

technical field [0001] The invention belongs to the technical field of research and application of plant extracts, and relates to a pine needle extract produced by a high-efficiency freeze-thaw extraction method, and uses the characteristics of the extract such as antibacterial, anti-oxidation, and anti-virus to keep poultry eggs fresh Preparation method of pine needle extract and its application in poultry egg preservation. Background technique [0002] Studies have found that pine needle extract contains a variety of active ingredients, including volatile oils, polyphenols, flavonoids, glycosides and terpenes, and other functional substances. learning effect. Research and development of pine needle extract is one of the development trends in the field of plant extracts in the future. With its unique and complex physiological functions, pine needle extract has gradually become a research hotspot in nutrition, physiology, immunology and other disciplines. Its related produ...

Claims

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Application Information

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IPC IPC(8): A23B5/06
Inventor 唐胜球董小英杨楚芬彭冬秋郭燕珊
Owner SHAOGUAN COLLEGE
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