Plant-source fresh medlar preservative and preparation method thereof

Abstract

The invention discloses a plant-source fresh medlar preservative. Effective components of the prepared plant-source fresh medlar preservative are composed of following raw materials: 0.2%-0.5% of a lotus leaf extractive, 0.5%-0.8% of water-soluble starch, 0.5%-0.8% of konjak gulcomannan, 0.2%-0.5% of sodium alginate, 0.5%-1% of CaCl2, 0.5%-1% of glycerol, 0.2%-0.5% of an emulsifying agent, 0.5%-1% of a solvent and the balance being water. The plant-source fresh medlar preservative has a good preservation effect; the preservative is blended with water to be used for coating, has a very good inhibition effect on pathogenic bacteria which easily appear in a storage process after fruits and vegetables are harvested, and also has a certain inhibition effect on postharvest rotting of medlar; the plant-source fresh medlar preservative has a very good preservation effect on the harvested medlar; the processing process is simple and the cost is low; the developing direction of a current preservative is met and the plant-source fresh medlar fruit preservative has a very good development and application potential.

Description

technical field [0001] The invention relates to a fresh-keeping agent, in particular to a fresh-keeping agent of botanical wolfberry fresh fruit and a preparation method thereof. Background technique [0002] The fresh fruit of Lycium barbarum is prone to browning, rot and qualitative change, which is an important problem in the postharvest storage process. Also do not have a kind of antistaling agent particularly good to the fresh-keeping effect of wolfberry fresh fruit at present. [0003] Lotus leaf extract, also known as nuciferine; the main chemical components are lotus leaf alkaloids, lotus leaf flavonoids, citric acid, oxalic acid, etc. It has the effects of clearing away heat and relieving summer heat, raising hair and clearing yang, cooling blood and stopping bleeding. For summer heat polydipsia, summer-damp diarrhea, spleen deficiency, blood in stool and metrorrhagia. The lotus leaf charcoal absorbs astringency, removes blood stasis and stops bleeding. For hemo...

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Problems solved by technology

[0004] According to the data retrieval done by the applicant, there are no literature and reports on the use of lotus leaf extract for the preservation of wolfberry fresh fruit.

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