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Aquatic product composite biological fresh-keeping agent as well as preparation method and application thereof

A technology for biological preservatives and aquatic products, which is applied in the preservation and application of food ingredients as antimicrobials, and the preservation of meat/fish with chemicals, etc. The preparation method is scientific, the ingredients are clear, and the effect of increasing the freshness

Active Publication Date: 2020-03-27
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tea polyphenol is a natural food antioxidant and antibacterial agent, and has the ability to scavenge free radicals. It has the advantages of prolonging the shelf life of products, preventing fading, etc., and can inhibit oil oxidation, rancidity, etc. The mechanism of tea polyphenols preservation has been Very clear, but due to the narrow antibacterial spectrum of a single biological preservative, the scope of action is limited

Method used

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  • Aquatic product composite biological fresh-keeping agent as well as preparation method and application thereof
  • Aquatic product composite biological fresh-keeping agent as well as preparation method and application thereof
  • Aquatic product composite biological fresh-keeping agent as well as preparation method and application thereof

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Embodiment 1

[0030] A preparation method of a composite biological preservative for aquatic products, comprising the following steps:

[0031] (1) Material pretreatment: select fresh plants of high-quality Salicornia, dry them in a blast drying oven at 55 degrees Celsius after collection, and crush them after drying to obtain powders with different crushing degrees (crushing degree ≥ 60 mesh);

[0032] (2) Extraction of active ingredients of Salicornia: Clean the extraction tank, add 10-12 times the amount (mass ratio) of 70% ethanol to soak at room temperature for 2 hours, heat and reflux extraction for 3 times, each time for 2-4 hours, Recover the extract, concentrate the extract in the filtrate under reduced pressure at 55°C to 0.2~0.5g / mL (calculated as crude drug);

[0033] (3) Column chromatography: the concentrated extract was enriched with macroporous adsorption resin, 100 g of AB-8 macroporous adsorption resin was selected, first soaked overnight in 95% ethanol, packed in a wet co...

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Abstract

The invention belongs to the field of food fresh keeping and in particular relates to an aquatic product composite biological fresh-keeping agent as well as a preparation method and application thereof. Through analysis and preparation on active components in salicorniaeuropaea L, the active components of the salicorniaeuropaea L are mixed and treated with tea polyphenols according to a certain ratio, and the aquatic product composite biological fresh-keeping agent with the combination of an active salicorniaeuropaea L extract and the tea polyphenols is developed. The preparation method of thebiological fresh-keeping agent is simple and feasible, low in production cost and wide in antibacterial spectrum, and the biological fresh-keeping agent is derived from resources for dual purposes ofmedicines and foods, and is convenient and safe to use, free of toxic or side effect on human bodies, and in addition, unique in flavor.

Description

technical field [0001] The invention belongs to the field of food preservation, and in particular relates to a composite biological preservation agent for aquatic products and its preparation method and application. Background technique [0002] Salicornia belongs to Chenopodiaceae (Chenopodiaceae) Salicornia genus (Salicornia) euhalophytes with leafless stems and succulent flesh, commonly known as sea asparagus, sea wormwood, etc. It is native to Europe and North America. In order to improve the saline-alkali coastal tidal flats, Salicornia was introduced to my country and distributed in Jiangsu, Zhejiang, Shandong, Hainan and other places. Its main species are European salicornia ( Salicornia europaea L.) and North American salicornia ( Salicornia bigelovii Torr.). Salicornia is rich in a variety of active substances, such as flavonoids, alkaloids, organic acids, polysaccharides and triterpenoid saponins, which have various effects such as anti-oxidation, anti-tumo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/20
CPCA23B4/20A23V2002/00A23V2250/21A23V2250/2132A23V2250/214A23V2200/10
Inventor 王笃军商曰玲李凤伟余晓红尹根程进张春银
Owner YANCHENG INST OF TECH
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