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Onion dehydration method capable of preparing onion oil incidentally

A technology of onion oil and onion, which is applied in the directions of essential oils/spices, fat production, food processing, etc., and can solve problems such as waste

Inactive Publication Date: 2013-04-10
福建紫红苑本草科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water vapor produced during the dehydration process of aromatic plants has a strong aroma because it contains a certain amount of aromatic oil, and it is very wasteful to discharge it as waste gas.

Method used

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  • Onion dehydration method capable of preparing onion oil incidentally

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: Weigh 100 kilograms of freshly collected onions, use a screening machine to screen and remove impurities such as mud, then use a fully automatic cutting machine to cut the onions into about 1 cm in length, and then send the cut onions into the cleaning Machine cleaning for 30 minutes, then use a dryer to dry and drain water for 30 minutes, after draining, send it to a box-type airtight dryer for drying and dehydration. The box-type airtight dryer belongs to intermittent drying equipment. Composed of heater, fan, exhaust port, air distributor, etc. The outer wall of the box body (drying room) has a thermal insulation layer, and the shelves are used to place the onions after screening, cutting, cleaning and draining. Fans are used to force clean air in and expel humid gases. The drying heat source can be a far-infrared heater arranged in the cabin, or hot air imported from outside the cabin. The drying temperature is 80° C., and the drying time is 4 hours....

Embodiment 2

[0019] Embodiment 2: In this embodiment, the cutting step is omitted, and 100 kilograms of freshly collected onions are screened by a screening machine to remove impurities such as mud lumps and rotten leaves, and then directly sent to a washing machine for cleaning for 30 minutes, and the drying temperature is 75 ° C. The drying time was 5 hours, and all the other operating methods and steps were the same as in Example 1. The dehydrated onion produced in this example was about 35 kg, the onion oil was about 80 ml, and the onion extract was about 50 kg.

Embodiment 3

[0020] Embodiment 3: In this embodiment, steps such as screening, cutting, cleaning, and draining are omitted, and 100 kilograms of freshly collected onions are directly sent to a box-type airtight dryer for drying and dehydration. The drying temperature is 85 ° C, and the drying time is It was 5 hours, and all the other operating methods and steps were the same as in Example 1. The dehydrated onion obtained in this example was about 25 kilograms, the onion oil was about 30 ml, and the onion extract was about 45 kilograms.

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Abstract

The invention provides an onion dehydration method capable of preparing onion oil incidentally. The dehydration method comprises a step of drying and dehydrating the onion by using a closed dryer, and also comprises a step of collecting the steam, a step of condensing the steam, a step of filtering by an ultra-filtration membrane, a step of filtering by a nano-filtration membrane and a reverse osmosis concentrating step, wherein the concentrated solution obtained after the reverse osmosis concentrating step is onion oil, and the permeate liquid is onion essence. By adoption of the method, the steam generated in the onion dehydration drying process is likely to be collected and in which the contained onion oil is separated, thus the excellent economic effects of making waste profitable and making maximum use of onion are achieved.

Description

technical field [0001] The invention relates to the field of aromatic plant processing, in particular to an onion dehydration method. Background technique [0002] Aromatic plants are a group of plants with common properties of medicinal plants and spice plants. Common varieties include ginger, garlic, onion, celery and so on. Aromatic plants contain aromatic oils. It has been scientifically proven that some of these aromatic oils can sterilize, disinfect, and repel insects, and some can regulate the central nervous system, which is very beneficial to human health and can make people out of sub-health. In addition, aromatic oil is also an important flavoring agent in food, cosmetics, soap, and pharmaceutical industries, so it has extremely high economic value. [0003] There is an aromatic plant processing method that dehydrates aromatic plants with reference to the vegetable dehydration process. The dehydrated aromatic plants obtained after the treatment have a wide range ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02C11B9/00A23N12/08
Inventor 林鸿
Owner 福建紫红苑本草科技有限公司