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Compensatory fresh-keeping method for asparagus

A fresh-keeping method and compensatory technology, which is applied in the direction of fruit and vegetable preservation, food preservation, and acid-containing food ingredients, etc., can solve the problems of restricting the fresh asparagus market, slow onset of action, lignification of asparagus tender stems, etc., to maintain crispness degree and appearance properties, good brittleness and appearance properties, and the effect of delaying the lignification process

Inactive Publication Date: 2016-12-14
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Post-harvest asparagus tender stems are prone to lignification and dehydration shrinkage, which limits the fresh market of asparagus
Post-harvest asparagus is generally treated by spraying or soaking hormones, nutrients, etc., and then dried for preservation. However, since the fresh-keeping ingredients are mainly distributed on the surface of asparagus, the effect is slow or not obvious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A compensatory fresh-keeping method for asparagus, specifically implement the following steps: (1) Post-harvest asparagus treatment: After the asparagus is harvested and sorted, cut off the base of the asparagus tender stem by 0.5 cm with a sharp blade, so as to facilitate the rapid absorption of active ingredients in fresh-keeping ; (2) Preparation of fresh-keeping solution: prepare a fresh-keeping solution containing mineral elements according to the characteristics of asparagus tender stems; (3) Sterilize the fresh-keeping solution: sterilize the fresh-keeping solution by filtering; The tender stems of asparagus are soaked in the preservative solution for storage, and the depth of the preservative solution is 1 cm. It is required that the base of the asparagus stem is always in the preservative solution, even to the point of sale.

Embodiment 2

[0012] A compensatory fresh-keeping method for asparagus, which specifically implements the following steps: (1) Post-harvest asparagus treatment: After the asparagus is harvested and sorted, cut off the base of the asparagus tender stem by 1.0 cm with a sharp blade, so as to facilitate the rapid recovery of active ingredients in the fresh-keeping solution. Absorption; (2) Preparation of fresh-keeping liquid: according to the characteristics of asparagus tender stems, a hormone-containing fresh-keeping liquid that meets national standards is prepared; (3) Preservative liquid sterilization: In order to avoid the growth of microorganisms at the base of the stem during the fresh-keeping process of asparagus tender stems, the fresh-keeping liquid is filtered (4) Preservation treatment: Soak the young asparagus stems with part of the stem base cut off in the preservative solution for storage. The depth of immersion in the preservative solution is 2 cm.

Embodiment 3

[0014] A compensatory fresh-keeping method for asparagus, which specifically implements the following steps: (1) Post-harvest asparagus treatment: After the asparagus is harvested and sorted, cut off the base of the asparagus tender stem by 1.5 cm with a sharp blade, so as to facilitate the rapid recovery of the active ingredients in the fresh-keeping solution. Absorption; (2) Preparation of fresh-keeping solution: according to the characteristics of young asparagus stems, prepare a fresh-keeping solution containing vitamins and amino acids; (3) Sterilization of fresh-keeping solution: In order to avoid the growth of microorganisms at the base of the stem during the fresh-keeping process of asparagus tender stems, the fresh-keeping solution is filtered Sterilization; (4) Preservation treatment: Soak the young asparagus stems with part of the stem base cut off in the preservative solution for storage. The depth of immersion in the preservative solution is 1.5 cm.

[0015] Tests ...

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PUM

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Abstract

The invention provides a compensatory fresh-keeping method for asparagus. The compensatory fresh-keeping method comprises the following steps: (1) treatment of harvested asparagus: after harvesting and trimming of asparagus, cutting off the basal part of the tender stem of asparagus by 0.3 to 1.5 cm so as to facilitate rapid absorption of effective components in a fresh-keeping solution; (2) preparation of the fresh-keeping solution: preparing a nutrient solution containing mineral elements according to the characteristics of the tender stem of asparagus, or adding components like hormone, vitamin and amino acid according with national standard in China into the nutrient solution; (3) sterilization of the fresh-keeping solution: killing bacteria in the fresh-keeping solution by using a filtering manner; and (4) fresh keeping: soaking the tender stem of asparagus with cut basal stem part in the fresh-keeping solution for storage, wherein the soaking depth of the fresh-keeping solution is 1 to 3 cm and the basal part of the stem of the asparagus has to be always maintained in the fresh-keeping solution.

Description

technical field [0001] The invention provides a compensatory fresh-keeping method for asparagus, belonging to the technical field of food fresh-keeping. Background technique [0002] Asparagus, also known as Shi Diaobo and Asparagus, mainly eats its tender stems. Asparagus tender stalks are delicate in texture, soft and delicious, and have a unique aromatic flavor. In addition, asparagus has special nutritional and therapeutic effects, and is rich in protein, multivitamins and amino acids. It is known as the "king of vegetables" and is a high-end nutritional and health-care vegetable. [0003] However, due to the high water content of the young stems of asparagus, the texture is crisp and tender, and the post-harvest respiration is relatively strong. Post-harvest asparagus tender stems are prone to lignification and dehydration shrinkage, which limits the fresh food market of asparagus. Post-harvest asparagus is generally treated by spraying or soaking in hormones and nut...

Claims

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Application Information

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IPC IPC(8): A23B7/153A23B7/154
CPCA23B7/153A23B7/154A23V2002/00A23V2250/06A23V2250/70
Inventor 郭衍银王亮付宝
Owner SHANDONG UNIV OF TECH
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