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A kind of preparation method of lotus extract

A technology of extract and lotus, which is applied in the field of preparation of lotus extract, can solve problems such as being easily affected by seasons and time, and achieve the effect of retaining aromatic components and ensuring quality

Active Publication Date: 2016-06-22
广州市白云采妮化妆品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People appreciate and taste the lotus fragrance, but they can only be near the lotus pond or bring the lotus back indoors, which is easily affected by seasons and time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation of lotus extract, the steps are as follows: 1) fresh lotus and lotus leaves were extracted with petroleum ether for 36 hours, the weight ratio of lotus and lotus leaves was 1:0.3, and the addition of petroleum ether was the total weight of lotus and lotus leaves 6 times of that, and take the filtrate after filtering the extract; 2) Use a rotary evaporator to remove petroleum ether under reduced pressure from the filtrate. Condenser and receiver use brine calcium chloride to condense and keep warm respectively. The temperature of brine calcium chloride is -9°C, and the filtrate is concentrated until it is semi-solidified to obtain the primary extract, which is placed at a low temperature of -60°C. Sterilize for 0.6 hour to obtain the finished lotus extract.

Embodiment 2

[0018] The preparation of lotus extract, the steps are as follows: 1) fresh lotus and lotus leaves were extracted with petroleum ether for 24 hours, the weight ratio of lotus and lotus leaves was 1:0.3, and the addition of petroleum ether was the total weight of lotus and lotus leaves 8 times of that, and take the filtrate after filtering the extract; 2) Use a rotary evaporator to remove petroleum ether under reduced pressure from the filtrate. Condenser and receiver are condensed and kept warm with brine calcium chloride respectively. The temperature of brine calcium chloride is -11°C, and the filtrate is concentrated until semi-solidified to obtain the primary extract, which is placed at a low temperature of -45°C. Sterilize for 0.8 hours to obtain the finished lotus extract.

Embodiment 3

[0020] The preparation of lotus extract, the steps are as follows: 1) fresh lotus and lotus leaves were extracted with petroleum ether for 30 hours, the weight ratio of lotus and lotus leaves was 1:0.5, and the addition of petroleum ether was the total weight of lotus and lotus leaves 5 times, take the filtrate after filtering the extract; 2) Use a rotary evaporator to remove petroleum ether under reduced pressure from the filtrate. Condenser and receiver are condensed and kept warm with brine calcium chloride respectively. The temperature of brine calcium chloride is -8°C, and the filtrate is concentrated until semi-solidified to obtain the primary extract, which is placed at a low temperature of -55°C. Sterilize for 1 hour to obtain the finished lotus extract.

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Abstract

The invention discloses a preparation method of lotus extract, comprising the following steps: 1) extracting fresh lotus and lotus leaves with petroleum ether for 24-48 hours, the weight ratio of lotus flowers and lotus leaves being 1:0.1-0.5, petroleum The amount of ether added is 5 to 8 times the total weight of the lotus flower and lotus leaves, and the filtrate is obtained after filtering the extract; 2) the filtrate is decompressed with a rotary evaporator to remove petroleum ether to obtain a primary extract, which is obtained after low-temperature sterilization. The finished lotus extract. The present invention uses petroleum ether as the extraction agent, which can fully extract the fragrance components in lotus petals and lotus leaves, and adopts a rotary evaporator to distill under reduced pressure when removing petroleum ether, which can effectively remove petroleum ether, and the preparation process is at a relatively low temperature It is carried out under certain conditions, and the aromatic components can be retained to the greatest extent, and the prepared lotus extract is rich in the faint fragrance of lotus.

Description

technical field [0001] The invention belongs to the technical field of flavors and fragrances, and in particular relates to a preparation method of lotus extract. Background technique [0002] Lotus, also known as lotus, water hibiscus, etc., belongs to the order of water lilies, and is a perennial aquatic herbaceous flower of the lotus family. The petals of the lotus have a faint fragrance, and the leaves of the lotus are also full of a fresh and unique smell. People appreciate and taste the lotus fragrance, but they can only be near the lotus pond or bring the lotus back indoors, which is easily affected by seasons and time. If the lotus fragrance can be brought back indoors and made into a fragrance product, the economic value of the lotus can be fully developed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a preparation method of lotus extract, so as to prepare lotus extract rich in lotus fragrance. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/00
Inventor 杨祝华
Owner 广州市白云采妮化妆品厂
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