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A method for preventing and treating postharvest mildew of galangal

A technology of galangal and mold, applied in the direction of application, protection of fruits/vegetables with coating protection layer, food ingredients as antimicrobial preservation, etc., can solve the problems of mildew pollution, gastrointestinal dysfunction, liver damage, etc. problems, to achieve the effect of promoting industrialization development, reducing environmental problems and saving costs

Active Publication Date: 2021-08-17
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the hot and humid climate of galangal during the harvest season (April-August), the traditional craft is mainly to dry in the sun, and the water drops slowly, which is prone to mildew pollution.
The traditional process only covers the surface through sulfur fumigation and oxidation, but does not achieve complete mold removal
The sulfur dioxide and sulfite brought by the sulfur fumigation process will destroy vitamin B1. Long-term use will cause gastrointestinal dysfunction, damage the liver, and endanger the human digestive system. In recent years, domestic and foreign regulations on the limit of residual sulfur dioxide have become increasingly strict. Sales of sulfur medicinal materials are becoming more and more popular
[0005] Galangal is a pungent and warm medicinal material containing volatile oil. There is no sulfur-free fresh-keeping and anti-mold technology applied to this kind of medicinal material.

Method used

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  • A method for preventing and treating postharvest mildew of galangal
  • A method for preventing and treating postharvest mildew of galangal
  • A method for preventing and treating postharvest mildew of galangal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Follow these steps to prevent postharvest mildew in galangal:

[0028] Step 1: Harvest fresh galangal medicinal materials and cut them into sections, spray, soak or smear with a preservative (25% of the weight of galangal) to prevent them from being evenly spread out and dry until the medicinal material surface is dry.

[0029] The antistaling agent used for preventing mold pollution of galangal after harvest is composed of the following components in parts by weight: 65% of the galangal stem extract liquid treated with lactic acid bacteria; 1% of sodium hypochlorite, 0.25% of sodium benzoate, and the rest is water.

[0030] The lactic acid bacteria-treated galangal stalk extract was obtained through the following steps: harvesting fresh galangal stalks, carrying out water extraction with a material-to-liquid ratio of 1:5 by weight, then cooling the extract, adding 10% by weight % lactic acid bacteria liquid fermentation for 12h.

[0031] Step 2: Primary drying (drying...

Embodiment 2

[0034] Follow these steps to prevent postharvest mildew in galangal:

[0035] Step 1: Harvest fresh galangal medicinal materials and cut them into sections, spray, soak or smear with a preservative (35% of the weight of galangal) to prevent them from being evenly spread and dried until the medicinal material surface is dry.

[0036] The antistaling agent used for preventing mold contamination of galangal after harvest is composed of the following components by weight: 35% of the galangal stalk extract liquid treated with lactic acid bacteria; 3% hypochlorous acid, 0.15% sodium benzoate, and the rest are water .

[0037] The lactic acid bacteria-treated galangal stalk extract was obtained through the following steps: harvesting fresh galangal stalks, carrying out water extraction with a material-to-liquid ratio of 1:8 by weight, then cooling the extract, adding 5 weight percent % lactic acid bacteria liquid fermentation for 24h.

[0038] Step 2: Primary drying (drying at 60°C...

Embodiment 3

[0041] Follow these steps to prevent postharvest mildew in galangal:

[0042] Step 1: Harvest fresh galangal medicinal materials and cut them into sections, spray, soak or smear with a preservative (40% of the weight of galangal) to prevent them from being evenly spread and dried until the medicinal material surface is dry.

[0043] The antistaling agent used for preventing mold pollution of galangal after harvest is composed of the following components in parts by weight: 55% of the galangal stem extract liquid treated with lactic acid bacteria; 2% of sodium hypochlorite, 0.25% of sodium benzoate, and the rest is water.

[0044]The lactic acid bacteria-treated galangal stalk extract was obtained through the following steps: harvesting fresh galangal stalks, carrying out water extraction with a material-to-liquid ratio of 1:10 by weight, then cooling the extract, adding 10 weight percent % lactic acid bacteria liquid fermentation for 18h.

[0045] Step 2: Dry once (naturally ...

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Abstract

The invention provides a method for preventing and treating post-harvest mildew of galangal. The harvested fresh galangal is cut into sections and treated with a preservative, then dried for the first time, and after the slices are treated with a mold inhibitor, then dried for the second time. until completely dry. The galangal treated by the method of the invention can suppress post-harvest mildew to the greatest extent, is safe, non-toxic, convenient to use and simple in process.

Description

technical field [0001] The invention relates to the field of post-harvest fresh-keeping and storage of agricultural products, in particular to a technology for preventing and controlling mildew of agricultural products with non-sulfide fresh-keeping drying and mildew-proof storage. Background technique [0002] Galangal (Rhizoma Alpiniae Officinarum), also known as galangal ginger, galangal, wild ginger and bergamot root, etc., is the rhizome of Alpinia officinarum Hance, a perennial herb of the Zingiberaceae family, mainly produced in Xuwen, Zhanjiang, Guangdong, etc. counties and cities. Galangal has a long history of medicinal use, and it has been recorded in all dynasties. It was first recorded in "Famous Doctors' Bilu" and listed as a Chinese medicine. In Annex 1 of the [2002] No. 51 "Notice on Further Standardizing the Management of Health Food Raw Materials" issued by the Ministry of Health, galangal is included in the list of items that are both food and medicine. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/154A23B7/157A23B7/02A23B7/16
CPCA23B7/02A23B7/154A23B7/157A23B7/16A23V2002/00A23V2200/10A23V2250/21A23V2300/10
Inventor 袁源龚霄林丽静李积华周伟
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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