Superheated steam and cold air combined drying method for abalones or sea cucumbers

A superheated steam and sea cucumber technology, applied in food science, food preservation, application, etc., can solve the problems of long drying cycle, slow drying speed, unsuitable for materials with high water content, etc., achieve high drying efficiency, reduce drying time, and odor full-bodied effect

Active Publication Date: 2015-02-04
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the drying process, energy saving and low drying temperature, but the drying speed is slow and the drying cycle is long, resulting in a large number of microorganisms in the material, which is not suitable for materials with high water content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In this case, fresh wrinkled abalone is used as raw material to prepare dried abalone. The specific steps are as follows:

[0018] 1) Preprocessing

[0019] ① Cleaning and shelling: Wash the fresh abalone with sea water to remove impurities and sediment on the shell surface; then put the abalone shell in hot water at 70-100°C for 3-60 seconds, remove the shell and take the meat.

[0020] ② Boiling in salted water: mix the washed abalone meat with 6% refined salt, marinate it in a pot or vat for 8 hours; then boil it in water at a water temperature of 80°C , precook for 6 minutes, remove, put in salt water to cool, wash off the foam, and drain the water.

[0021] 2) Superheated steam drying

[0022] Put the pretreated abalone meat on the loading tray of the superheated steam dryer, set the superheated steam pressure to 111.33kPa, the steam temperature to 120°C, and the steam flow rate to 1.5m / s for drying; The moisture content is reduced to (40±1)%.

[0023] 3) Cold ...

Embodiment 2

[0028] In this case, fresh and live sea cucumbers were used as raw materials to prepare light-dried sea cucumbers. The specific steps are as follows:

[0029] 1) Preprocessing

[0030] ① Cleaning: On the abdomen of the washed fresh sea cucumber 1 / 4 body length away from the anus, cut about 1 / 4 the length of the sea cucumber body, parallel to the opening of the sea cucumber body, remove the internal organs of the sea cucumber, and remove the five internal organs attached to the inner wall. tendons; then gently scrub with water, rinse and drain.

[0031] ② Poaching: first pour water into the pot, the ratio of water to sea cucumber is 4:1, when the water is heated to about 100°C, put the sea cucumber into the pot, pre-boil for 20-40 minutes, take out in time, and drain.

[0032] 2) Superheated steam drying

[0033] Put the pretreated sea cucumbers on the loading tray of the superheated steam dryer, and dry them with superheated steam pressure of 131.33kPa, steam temperature of ...

Embodiment 3

[0039] In this case, fresh wrinkled abalone is used as raw material to prepare dried abalone. The specific steps are as follows:

[0040] 1) Preprocessing

[0041] ① Cleaning and shelling: Wash the fresh abalone with sea water to remove impurities and sediment on the shell surface; then put the abalone shell in hot water at 70-100°C for 3-60 seconds, remove the shell and take the meat.

[0042] ② Boiling in salted water: mix the washed abalone meat with 6% refined salt, marinate it in a pot or vat for 8 hours; then boil it in water at a water temperature of 80°C , precook for 6 minutes, remove, put in salt water to cool, wash off the foam, and drain the water.

[0043] 2) Superheated steam drying

[0044] Put the pretreated abalone meat on the loading tray of the superheated steam dryer, set the superheated steam pressure to 121.33kPa, steam temperature to 105°C, and steam flow rate to 2.0m / s for drying; dry for 3h, the abalone The moisture content is reduced to (38±1)%.

...

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PUM

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Abstract

The invention discloses a superheated steam and cold air combined drying method for abalones or sea cucumbers. The method comprises: firstly employing a superheated steam drying technology to dry abalones or sea cucumbers quickly to remove part of moisture from the material; when the moisture content of the material is reduced to 37.5%-41.2%, entering a second stage, and using a cold air drying technology to remove the residual bound water from the material. The method provided in the invention avoids damage of the high temperature steam at the terminal stage of superheated steam drying to the organizational structure and nutritional ingredients of aquatic products, and also solves the problems of slow cold air drying speed, long time and the like. At the same time, at the early stage of a drying process, abalones or sea cucumbers can shrink uniformly, dehydrate rapidly, have good quality, and are free of crusting, hardening cracking, excessive shrinkage, distortion and other undesirable phenomena caused by hot air drying.

Description

technical field [0001] The invention belongs to the field of aquatic product processing, and in particular relates to a combined drying method of superheated steam and cold wind for abalone or sea cucumber. Background technique [0002] Abalone is a rare seafood and one of the eight treasures of the sea. Abalone is rich in nutrition, containing calcium, phosphorus, iron and other minerals and multivitamins needed by the human body. There are three types of abalones currently on the market: fresh and live abalones, canned products, and dried products. The catering industry in the mainland mostly uses dried abalones. Each product has a different flavor due to the difference in texture and processing method. Among them, dried abalone has the best quality and the highest price. During the drying process, the structure and physical and chemical properties of abalone have changed, so it is very popular among people. During the drying process, the physical and chemical propertie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L3/40
Inventor 方婷陈锦权罗章秀陈冉
Owner FUJIAN AGRI & FORESTRY UNIV
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