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A kind of sweet potato storage and preservation method

A fresh-keeping method, sweet potato technology, applied in the direction of fruit and vegetable fresh-keeping, food preservation, and protection of fruits/vegetables with a coating protective layer, which can solve problems such as omission, secondary pollution, and the inability of ozone to fully exert its bactericidal effect, and achieve improved Economic benefits, beneficial to storage and preservation

Active Publication Date: 2021-04-02
XUZHOU INST OF AGRI SCI IN JIANGSU XUHUAI DISTRICT (JIANGSU XUZHOU SWEETPOTATO CENT)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is helpful for sweet potato storage, but whether it is "thiophanate-methyl" or "sulfur", harmful residues will be produced, and these residues are either attached to the surface of the potato pieces or released in the air, easily causing secondary pollution; The method of sprinkling quicklime powder into the potato pieces may easily cause uneven concentration of lime powder on the surface of the potato pieces, resulting in omission or burning; at the same time, because it is a powder, the alkaline effect of quicklime has not been fully exerted and cannot be effectively suppressed. The growth and reproduction of microorganisms on the surface of potato pieces; there is also a method of treating potato pieces with ozone, but the surface of dry potato pieces cannot dissolve ozone, and ozone cannot fully exert its bactericidal effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 1: Load the baskets, put the freshly harvested complete fresh potato pieces into the plastic basket, the height of the top potato pieces is 5-10cm lower than the upper edge of the basket, so as to facilitate the stacking of baskets and ventilation;

[0021] Step 2: Soak in lime water, soak the plastic basket full of fresh potatoes in saturated lime water, and ensure that all the potato pieces are submerged in saturated lime water, soak for 3 to 5 minutes, so that the lime water can fully soak the soil layer and groove wrinkles on the surface of the potato pieces The depth of the pleats; this process is a sterilization process for the potato pieces;

[0022] Step 3: Control the water, lift the material basket, and drain the water until the water does not drip continuously;

[0023] Step 4: Put in storage, after the baskets are water-controlled, transfer them to the storage warehouse, place 5 to 6 baskets on top of each other, and place them in order from inside to o...

Embodiment 2

[0029] Step 1: Load the baskets, put the freshly harvested complete fresh potato pieces into the plastic basket, the height of the top potato pieces is 5-10cm lower than the upper edge of the basket, so as to facilitate the stacking of baskets and ventilation;

[0030] Step 2: Soak in lime water, soak the plastic basket full of fresh potatoes in saturated lime water, ensure that all the potato pieces are submerged in saturated lime water, soak for 3 to 5 minutes, so that the lime water can fully soak the soil layer and groove folds on the surface of the potato pieces deep; this process is a sterilization process for potato pieces;

[0031] Step 3: Control the water, lift the material basket, and drain the water until the water does not drip continuously;

[0032] Step 4: Put in storage, after the baskets are water-controlled, transfer them to the storage warehouse, place 5 to 6 baskets on top of each other, and place them in order from inside to outside, leaving a space betwee...

Embodiment 3

[0038] Step 1: Load the basket, put the whole fresh potato cubes just harvested into the plastic basket, and the height of the top potato cubes is 5-10cm lower than the upper edge of the basket for stacking and ventilation;

[0039] Step 2: Soak in lime water, soak the plastic basket full of fresh potatoes in saturated lime water, ensure that all the potato pieces are submerged in saturated lime water, soak for 3 to 5 minutes, so that the lime water can fully soak the soil layer and groove folds on the surface of the potato pieces deep; this process is a sterilization process for potato pieces;

[0040] Step 3: Control the water, lift the material basket, and drain the water until the water does not drip continuously;

[0041] Step 4: Put in storage, after the baskets are water-controlled, transfer them to the storage warehouse, place 5 to 6 baskets on top of each other, and place them in order from inside to outside, leaving a space between the baskets in and out the aisle; ...

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PUM

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Abstract

The invention relates to a storage and fresh keeping method of sweet potatoes. The method comprises the following steps: basketing: putting just harvested complete fresh sweet potatoes into material baskets; soaking in lime water: soaking the plastic baskets filled with the fresh sweet potatoes in saturated lime water, and ensuring that all the sweet potatoes are submerged by the lime water, wherein the soaking time is 3-5min; draining: lifting the material baskets and conducting draining; storage in warehouses: after the draining of the material baskets, transferring the baskets into a storage warehouse; ozone sterilization: placing the baskets in the storage warehouse neatly, closing doors and windows so as to form a closed condition, introducing ozone for sterilization, enabling the ozone concentration to reach 2-4ppm within 10-30min, and maintaining the ozone concentration for 20-40min; dehumidification: after the ozone sterilization, opening the doors and windows for ventilation,and after the ozone is dissipated, dehumidifying the storage warehouse by a dehumidifier until the sweet potatoes and ground are dry and clean; and daily management: keeping the interior warehouse at11-13 DEG C and 60-90% relative humidity all the year round. The method can effectively inhibit the growth and reproduction of microorganisms on surfaces of the sweet potatoes, and can give full playto the effect of sterilization, and is beneficial to long-term storage and fresh keeping of the sweet potatoes.

Description

technical field [0001] The invention relates to the technical field of sweet potato preservation, in particular to a sweet potato storage and preservation method. Background technique [0002] Sweet potato has high water content, thin skin, and is not resistant to storage, which restricts the development of sweet potato industry. The storage conditions of sweet potatoes are 11-13°C, and the relative humidity is about 80%. The management conditions in the storage process are relatively harsh, and some small negligence can cause the potato pieces to rot or even "burn the cellar", which in turn will cause relatively large economic losses. Therefore, the storage management of sweet potatoes must be very careful, not only to maintain a suitable temperature and humidity, but also to strengthen the disinfection of the storage environment (storage), such as sulfur fumigation, spraying carbendazim and sprinkling of quicklime. The potato pieces are disinfected to prolong the storage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/157A23B7/152A23B7/16
CPCA23B7/152A23B7/157A23B7/16
Inventor 徐飞钮福祥朱红孙健岳瑞雪张毅张文婷
Owner XUZHOU INST OF AGRI SCI IN JIANGSU XUHUAI DISTRICT (JIANGSU XUZHOU SWEETPOTATO CENT)
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