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Lemongrass dehydration method capable of preparing lemongrass essential oil incidentally

A technology of lemongrass essential oil and lemongrass, which is applied in the direction of essential oil/fragrance, preliminary treatment to promote the drying of solid materials, lighting and heating equipment, etc., and can solve the problems of waste discharge and so on

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 vanilla contains a certain amount of vanilla essential oil and has a strong aroma, so it is wasteful to discharge it as waste gas

Method used

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  • Lemongrass dehydration method capable of preparing lemongrass essential oil incidentally

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: take by weighing 100 kilograms of freshly collected lemongrass, use a screening machine to screen and remove impurities such as clods, rotten leaves, and then utilize a fully automatic cutting machine to cut lemongrass into about 3 cm in length, then divide The cut lemongrass is sent to the washing machine for cleaning for 30 minutes, and then dried and drained with a dryer for 30 minutes. After draining, it is sent to a box-type airtight dryer for drying and dehydration. The box-type airtight dryer belongs to intermittent drying equipment. It is mainly composed of a box body, a shelf, a heater, a fan, an exhaust port, and an air distributor. The outer wall of the compartment (drying room) has a thermal insulation layer, and the shelves are used to place the lemongrass 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...

Embodiment 2

[0019] Example 2: In this example, the cutting step is omitted, and 100 kg of freshly collected lemongrass is screened by a screening machine to remove impurities such as mud and rotten leaves, and then directly sent to a washing machine for cleaning for 30 minutes, and the drying temperature is 65°C , the drying time was 5 hours, and all the other operating methods and steps were the same as in Example 1. The dehydrated lemongrass made in this example was about 35 kilograms, the lemongrass essential oil was about 80ml, and the lemongrass essence was about 50 ml. Kilogram.

Embodiment 3

[0020] Embodiment 3: In this embodiment, steps such as screening, cutting, cleaning, and draining are omitted, and 100 kilograms of freshly collected lemongrass are directly sent into a box-type airtight dryer for drying and dehydration. 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 lemongrass obtained in this example was about 25 kg, the lemongrass essential oil was about 30ml, and the lemongrass essence was about 45 kg.

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Abstract

The invention provides a lemongrass dehydration method capable of preparing lemongrass essential oil incidentally. The dehydration method comprises a step of drying and dehydrating the lemongrass 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 lemongrass essential oil, and the permeate liquid is lemongrass essence. By adoption of the method, the steam generated in the lemongrass dehydration drying process is likely to be collected and in which the contained vanilla essential oil is separated, thus the excellent economic effects of making waste profitable and making maximum use of lemongrass are achieved.

Description

technical field [0001] The invention relates to the field of vanilla processing, in particular to a method for dehydrating lemongrass. Background technique [0002] Vanilla is a plant group with common properties of medicinal plants and spice plants. There are more than 3,000 species in the world. The common ones are lavender, rosemary, thyme, lemon balm, perilla, mint, basil, lemongrass, and chamomile. , lemon verbena, aromatic geranium, patchouli, oregano and other varieties. Vanilla contains vanilla essential oil. It has been scientifically proven that some of these vanilla essential oils can sterilize, disinfect, and deworm, and some can regulate the central nervous system, which is very beneficial to human health and can make people out of sub-health state. For example, savory can refresh the brain, and red basil can cure cough and diarrhea. In addition, vanilla essential oil is also an important flavoring agent in food, cosmetics, soap, and pharmaceutical industries,...

Claims

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Application Information

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IPC IPC(8): C11B9/02C11B9/00F26B1/00F26B20/00F26B25/00
Inventor 林鸿
Owner 福建紫红苑本草科技有限公司
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