In-situ rapid fragrance locking method after aromatic plant harvesting

Abstract

The invention discloses an in-situ rapid fragrance locking method after aromatic plant harvesting, and belongs to the technical field of natural plant processing. According to the method, after aromatic plant raw materials are harvested, the aromatic plant raw materials are subjected to low-temperature fidelity treatment in a field, a field edge, a planting base or a processing factory through or without the steps of spreading for airing, aging, air drying and pretreatment by adopting any one mode of low-temperature distillation, low-temperature extraction and adsorption fragrance trapping, and in-situ instant stabilization of the raw materials is achieved; the raw materials can be used independently or synchronously co-extracted with aromatic plants without chemical conflicts. The method can effectively reduce the component loss and oxidation of the raw materials in the transportation and storage process, retains the freshness, naturalness and integrity of natural substances, is mild in treatment condition and wide in application range, and can meet the requirements of field operation and large-scale production.

Description

Technical Field

[0001] This invention relates to the field of natural fragrance extraction technology, specifically to a method for rapid in-situ fragrance locking after harvesting aromatic plants. Background Technology

[0002] After harvesting, the volatile aroma components and active substances in aromatic plant raw materials are easily oxidized, degraded, and lost during transportation and storage, leading to a decline in the quality of subsequently processed products. Traditional processing methods require long-distance transportation of raw materials to standardized processing plants for centralized processing, which is time-consuming and involves many steps, making it difficult to preserve the natural quality of the raw materials in their field state. Furthermore, existing technologies mostly process single plant raw materials, lacking systematic and in-situ rapid processing solutions for the simultaneous co-extraction of multiple chemically incompatible aromatic plants, thus failing to meet the diverse needs of preparing natural fragrances. Summary of the Invention

[0003] To address the issues of component loss and difficulty in maintaining the natural quality of aromatic plants due to transportation and storage after harvesting, as well as the inadequacy of multi-plant synergistic processing, this invention provides a method for rapid in-situ fragrance locking of aromatic plants after harvesting, achieving in-situ, rapid, and low-temperature preservation of fragrance.

[0004] I. Purpose of the Invention

[0005] It reduces the loss and oxidation of effective components after the harvest of aromatic plants, preserves the natural quality and integrity of raw materials, and supports the simultaneous co-extraction of single raw materials or multiple aromatic plants without chemical conflicts, thus broadening the scope of application and scenarios for in-situ fragrance locking.

[0006] II. Technical Solution

[0007] A method for rapidly locking in the fragrance of aromatic plants in situ after harvesting, the steps of which are as follows: Select aromatic plant raw materials that are in the appropriate harvesting period; Processing is carried out in fields, on the edge of fields, in planting bases, or in processing plants; The raw materials can be processed directly, or processed after spreading, aging, air drying, or pretreatment; Low-temperature preservation treatment is carried out using one or more of the following methods: low-temperature distillation, low-temperature extraction, and adsorption aroma capture. To obtain stable aroma concentrates, fragrance bases or essential oil products.

[0008] The raw materials can be used alone or co-extracted with aromatic plants that do not have chemical conflicts; the processing equipment can be mobile, portable, vehicle-mounted, or set up on-site; the processing temperature should not exceed 45℃; and the time from raw material harvesting to the start of processing should not exceed 120 minutes.

[0009] III. Beneficial Effects

[0010] It covers all scenarios and can be implemented in fields, planting bases, or processing plants, offering great flexibility.

[0011] In-situ processing significantly shortens the time interval between harvesting and processing, reducing component loss and oxidation.

[0012] Low-temperature preservation processing, under mild conditions, can fully preserve the natural activity and flavor characteristics of the raw materials.

[0013] It supports the simultaneous co-extraction of single raw materials or multiple aromatic plants without chemical conflicts, and has strong applicability and high scalability.

[0014] The equipment is flexible and convenient, suitable for both on-site operations and large-scale production applications. Detailed Implementation

[0015] Example 1

[0016] Aromatic plant fruits at the appropriate harvesting period were selected as raw materials. Within 60 minutes of harvesting, the raw materials were subjected to low-temperature distillation at 32℃ in the field without any pretreatment to obtain in-situ fragrance-locking products. Example 2

[0017] Aromatic plant leaves were selected as raw materials. After harvesting, they were spread out and dried within 90 minutes at the field. Then, they were subjected to low-temperature preservation treatment using adsorption and fragrance capture at a temperature of 34℃ to obtain aroma-enriched products. Example 3

[0018] Two aromatic plant raw materials with no chemical conflict were mixed and simultaneously co-extracted at the planting base within 30 minutes after harvesting. Low-temperature extraction was used at a temperature of 30°C to obtain a compound natural fragrance base product. Example 4

[0019] Aromatic plant raw materials are transported to the processing plant, where they undergo low-temperature distillation within 120 minutes to achieve low-temperature preservation and obtain a stabilized natural fragrance base.

Claims

1. A method for rapid in-situ fragrance locking of aromatic plants after harvest, characterized in that, After harvesting aromatic plant raw materials, they are subjected to low-temperature preservation treatment in the fields, fields, planting bases or processing plant areas, with or without spreading, aging, air drying and pretreatment steps, using any one of the following methods: low-temperature distillation, low-temperature extraction, or adsorption to capture fragrance, so as to achieve in-situ immediate stabilization of aromatic plant raw materials. The raw materials can be used alone or co-extracted with aromatic plants that do not have chemical conflicts.

2. The method according to claim 1, characterized in that, The aromatic plants include fruits, flowers, leaves, and whole plant materials with natural volatile aromas.

3. The method according to claim 1, characterized in that, In-situ treatment can be completed using mobile, portable, vehicle-mounted, or on-site equipment.

4. The method according to claim 1, characterized in that, The processing temperature should not exceed 45℃.

5. The method according to claim 1, characterized in that, The time from raw material harvesting to the start of processing shall not exceed 120 minutes.