Microencapsulated strawberry preservative containing eucalyptus leaf extract and preparation method thereof

A technology of microencapsulation and antistaling agent, applied in the field of microencapsulated strawberry antistaling agent and its preparation, to achieve the effects of prolonging the preservation period, benefiting environmental protection, and promoting health

Inactive Publication Date: 2017-02-22
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when eucalyptus essential oil is used for the fresh-keeping practice of strawberries, how to not only have a high yield of eucalyptus esse

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1:

[0024] This embodiment includes the following steps:

[0025] (1) Fresh eucalyptus leaves are broken: take fresh eucalyptus globulus leaves, eucalyptus grandis leaves, eucalyptus dunne leaves, G9 eucalyptus leaves, eucalyptus fine leaves, eucalyptus lemon leaves and eucalyptus grandis leaves, and use a crusher to roughly crush them. Distilled water twice (v / m) of leaf crushed leaf mass, treated with high-speed tissue crusher at 7000r / min for 12min;

[0026] (2) Ultrasonic pretreatment: the eucalyptus leaf slurry is treated with ultrasonic, power is 300w, time is 30min;

[0027] (3) Steam distillation: Adjust the material-to-liquid ratio of the ultrasonically treated eucalyptus leaf slurry to 1:9 (m / v), and steam distillation for 5.0h;

[0028] (4) High-speed centrifugal dehydration of essential oils: collect the essential oils obtained from distillation, cool to 2℃, and dehydrate them by high-speed centrifugation at 19000r / min for 7min. Eucalyptus globulus, Eucalypt...

Example Embodiment

[0032] Example 2:

[0033] This embodiment includes the following steps:

[0034] (1) Fresh eucalyptus leaves are broken: take fresh eucalyptus globulus leaves, eucalyptus grandis leaves, eucalyptus dunne leaves, G9 eucalyptus leaves, eucalyptus fine leaves, eucalyptus lemon leaves and eucalyptus grandis leaves, and use a crusher to roughly crush them. Distilled water with 3 times (v / m) of leaf crushed leaf mass, treated with high-speed tissue crusher at 7500r / min for 11min;

[0035] (2) Ultrasonic pretreatment: The eucalyptus leaf slurry is treated with ultrasound, the power is 350w, and the time is 28min;

[0036] (3) Steam distillation: Adjust the material-liquid ratio of the eucalyptus leaf slurry treated with ultrasonic to 1:9 (m / v), and steam distillation for 5.5h;

[0037] (4) High-speed centrifugal dehydration of essential oils: collect the essential oils obtained from distillation, cool to 2°C, and dehydrate with 19000r / min high-speed centrifugation for 8min. Eucalyptus globul...

Example Embodiment

[0041] Example 3:

[0042] This embodiment includes the following steps:

[0043] (1) Fresh eucalyptus leaves are broken: take fresh eucalyptus globulus leaves, eucalyptus grandis leaves, eucalyptus dunne leaves, G9 eucalyptus leaves, eucalyptus fine leaves, eucalyptus lemon leaves and eucalyptus grandis leaves, and use a crusher to roughly crush them. Distilled water with 3 times (v / m) of leaf crushed leaf mass, treated with high-speed tissue crusher at 8000r / min for 10min;

[0044] (2) Ultrasonic pretreatment: the eucalyptus leaf slurry is treated with ultrasonic, the power is 400w, and the time is 25min;

[0045] (3) Steam distillation: adjust the material-liquid ratio of the eucalyptus leaf slurry treated with ultrasonic to 1:8 (m / v), and steam distillation for 6.0h;

[0046] (4) High-speed centrifugal dehydration of essential oils: collect the essential oils obtained from distillation, cool to 3°C, and dehydrate them by high-speed centrifugation at 18000r / min for 9min. Eucalyptus ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a microencapsulated strawberry preservative containing a eucalyptus leaf extract and a preparation method thereof. The main ingredient of the preservative is mixed eucalyptus leaf essential oil. The preparation method comprises the following steps: (1) crushing fresh eucalyptus leaves (eucalyptus leaves for short); (2) carrying out ultrasonic pretreatment on eucalyptus leaf slurry; (3) distilling for 5-7h with water vapor and extracting eucalyptus leaf essential oil; (4) dehydrating eucalyptus leaf essential oil; (5) mixing different types of eucalyptus leaf essential oil at a certain ratio; (6) carrying out complex coacervation by taking the eucalyptus leaf essential oil as core materials and taking gelatin and chitosan as wall materials at a ratio of 1:5-9 (v/m) of the core materials to the wall materials, adding transglutaminase with 0.1%-0.4% (m/m) of gelatin by mass percent for curing, and carrying out low-temperature vacuum drying. The preservative is used for preservation of strawberries in a dosage of 10g of the preservative in 5Kg of strawberries, has obvious preservation effect, no adverse effect to the flavor of the strawberries, good safety and convenience in use.

Description

technical field [0001] The invention relates to a natural fruit fresh-keeping agent and a preparation method thereof, in particular to a microencapsulated strawberry fresh-keeping agent containing eucalyptus leaf extract and a preparation method thereof. Background technique [0002] Strawberry belongs to the Rosaceae Fragaria genus, which is a perennial evergreen herb. Strawberry fruit is bright in color, unique in flavor, rich in nutrition, rich in vitamins, folic acid, phenols and other bioactive components, known as the "Queen of Fruits". However, strawberry is a non-climacteric fruit with a very short post-harvest storage life. Due to the high temperature and rainy season in the harvest season, the fruit has a large water content, a strong metabolism, and is sensitive to fungi, so it is extremely vulnerable to mechanical damage and infection by pathogens. Cause rot, without any fresh-keeping treatment, it can only be stored for 1-2 days at room temperature. In recent ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23B7/04A23B7/152
CPCA23B7/04A23B7/152
Inventor 龚吉军王挥唐静
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap