A kind of preparation method of lotus extract

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. [...