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Physical fresh keeping method of pine seeds

A fresh-keeping method and technology of pine nuts, which are applied to the preservation of edible seeds, the preservation of seeds with chemicals, and the preservation of seeds through pressure changes, etc., to avoid food safety hazards, significantly inhibit bacteria and kill insects, and guarantee odor and nutritional value Effect

Inactive Publication Date: 2017-04-26
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of the research is the use of chemical substance soaking, however, there are inevitably food safety hazards in the chemical substance soaking treatment

Method used

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  • Physical fresh keeping method of pine seeds

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Experimental program
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Effect test

Embodiment 1

[0026] (1) Soaking and cleaning: use pine nuts as raw materials, immerse them in ultra-pure water, remove impurities and dust on the surface of pine nuts, and then ultrasonic for 1.5h;

[0027] (2), draining, air-flow blowing and mixing treatment: quickly drain the treated pine nuts in the dark at a low temperature of 10°C, and then dry them for 30min at 40°C with a mesh-belt type airflow dryer;

[0028] (3) High-pressure osmosis treatment: Add mugwort essential oil into the heating chamber, promote the volatilization of mugwort essential oil at a constant temperature of 100°C, and use a high-pressure pump to pump the volatilized mugwort essential oil gas into the high-pressure air chamber equipped with pine nuts , and pressurize the high-pressure air chamber to ensure that the pressure in the high-pressure air chamber is at 10MPa. At this time, the gas of mugwort essential oil has a density of 0.68-0.85g / cm 3 The approximate supercritical state, the processing time is 40min; ...

Embodiment 2

[0033] (1) Soaking and cleaning: use pine nuts as raw materials, immerse them in ultra-pure water, remove impurities and dust on the surface of pine nuts, and then ultrasonic for 2.5 hours;

[0034] (2), draining, air-flow blowing and mixing treatment: quickly drain the treated pine nuts in the dark at a low temperature of 20°C, and then dry them for 50min at 70°C with a mesh-belt type airflow dryer;

[0035] (3) High-pressure osmosis treatment: Add mugwort essential oil into the heating chamber, promote the volatilization of mugwort essential oil at a constant temperature of 120°C, and use a high-pressure pump to pump the volatilized mugwort essential oil gas into the high-pressure air chamber equipped with pine nuts , and pressurize the high-pressure air chamber to ensure that the pressure in the high-pressure air chamber is at 14MPa. At this time, the gas of mugwort essential oil shows a density of 0.68-0.85g / cm 3 The approximate supercritical state, the processing time is ...

Embodiment 3

[0040] (1) Soaking and cleaning: use pine nuts as raw materials, immerse them in ultra-pure water, remove impurities and dust on the surface of pine nuts, and then ultrasonic for 2 hours;

[0041] (2), draining, air blowing and mixing treatment: the treated pine nuts are kept away from light and drained quickly at a low temperature of 15°C, and then dried for 40min at 55°C with a mesh belt type airflow dryer;

[0042] (3) High-pressure osmosis treatment: Add mugwort essential oil into the heating chamber, promote the volatilization of mugwort essential oil at a constant temperature of 110°C, and use a high-pressure pump to pump the volatilized mugwort essential oil gas into the high-pressure air chamber containing pine nuts , and pressurize the high-pressure air chamber to ensure that the pressure in the high-pressure air chamber is at 12MPa. At this time, the gas of mugwort essential oil has a density of 0.68-0.85g / cm 3 The approximate supercritical state, the processing time...

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Abstract

The invention discloses a physical fresh keeping method of pine seeds. The problems that in a conventional storage process, insect pests appear in the pine seeds, so that the nutrient value of the stored pine seeds is low can be solved. The technical scheme adopted by the invention lies in that the physical fresh keeping method comprises the following steps of soaking the fresh pine seeds, cleaning the soaked pine seeds, draining the cleaned pine seeds, performing high-pressure osmotic treatment, performing corona discharge treatment through a vacuum high-voltage electric field, performing vacuum packaging, and performing cold storage. According to the physical fresh keeping method disclosed by the invention, under high-pressure conditions, volatilized-out argy wormwood gas shows approximate supercritical state, so that the volatilized-out argy wormwood gas has extremely high infiltration capacity and can infiltrate the inner parts of the pine seeds to have the effective effects of restraining bacteria and killing insects; through the corona discharge treatment through the vacuum high-voltage electric field, molecular structures of volatile ingredients in argy wormwood are destroyed, and further peculiar smell is removed; and the preservation period of the processed pine seeds is greatly prolonged, and the processed pine seeds are excellent in color, fragrance and taste.

Description

technical field [0001] The invention belongs to the field of food preservation, and in particular relates to a physical preservation method of pine nuts. Background technique [0002] Pine nut is the seed of Rosaceae apricot. It is divided into sweet pine nut and bitter pine nut. It mainly contains protein, fat, sugar and trace amount of pine nut glycoside. In the classics of traditional Chinese medicine "Compendium of Materia Medica", three major functions of pine nuts are listed: moistening the lungs, clearing accumulated food, and dispelling stagnation. Qingjishi means that pine nuts can help digestion and relieve constipation symptoms; "Modern Practical Chinese Medicine" records: "Pine nuts taken orally have a laxative effect and a nourishing effect." For the elderly and weak with chronic constipation, taking Pine nuts work even better. Researchers believe that a variety of nutrients rich in pine nuts, such as vitamin E, monounsaturated fat and dietary fiber, can effec...

Claims

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Application Information

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IPC IPC(8): A23B9/00A23B9/06A23B9/18A23L5/20
CPCA23B9/005A23B9/06A23B9/18A23V2002/00A23V2200/10A23V2250/21A23V2300/12A23V2300/24
Inventor 汪超胡开群李冬生吴茜石勇徐宁胡勇周梦舟
Owner HUBEI UNIV OF TECH
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