A kind of betel leaf ether extract and its application as fruit and vegetable fresh-keeping agent

A technology of fruit and vegetable preservatives and extracts, applied in the field of betel leaf ether extract and its application as fruit and vegetable preservatives

Active Publication Date: 2020-08-14
HAINAN NORMAL UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is reported that the ethanol extract of betel leaves has certain antioxidant and antibacterial activities, but the low polarity components in betel leaves, such as the ether extract of betel leaves, can be used as fruit and vegetable preservatives.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of betel leaf ether extract and its application as fruit and vegetable fresh-keeping agent
  • A kind of betel leaf ether extract and its application as fruit and vegetable fresh-keeping agent
  • A kind of betel leaf ether extract and its application as fruit and vegetable fresh-keeping agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation of embodiment 1 betel leaf ethyl ether extract A

[0020] (1) Take 200g of fresh Piper betel leaves, add 1600mL of anhydrous diethyl ether, and extract with Soxhlet extraction for 24 hours under the condition of a constant temperature water bath at 40°C, concentrate under reduced pressure and recover diethyl ether to obtain a crude extract;

[0021] (2) The medicinal extract obtained in step (1) is adsorbed by activated carbon column, eluted with 60-70% ethanol, collects the eluent of 3 times of column volume, concentrates under reduced pressure and collects, and further passes through AB8 type macroporous resin Adsorbed on the column, eluted with 50-60% ethanol, collected 3 times the column volume of the eluate, concentrated under reduced pressure, and freeze-dried to obtain the ether extract A of betel leaf (2.6g).

Embodiment 2

[0022] The preparation of embodiment 2 Piper betel ether extract B

[0023] (1) Get 500g of fresh betel leaves, add 7.5L of anhydrous diethyl ether, under the condition of a constant temperature water bath of 40°C, extract with Soxhlet extraction for 48 hours, concentrate under reduced pressure and recover diethyl ether to obtain a crude extract;

[0024] (2) The medicinal extract obtained in step (1) is adsorbed by activated carbon column, eluted with 60-70% ethanol, and the eluent of 5 times the amount of column volume is collected, concentrated under reduced pressure and collected, and further passed through D101 type macroporous resin Adsorbed on the column, eluted with 50-60% ethanol, collected 5 times the column volume of the eluate, concentrated under reduced pressure, and freeze-dried to obtain the ether extract B (7.9 g) of Piper betel leaves.

Embodiment 3

[0025] The preparation of embodiment 3 Piper betel ethanol extract C

[0026] (1) Get 200g of fresh Piper betel leaves, add 1600mL of ethanol, and extract with Soxhlet extraction for 24 hours under the condition of a constant temperature water bath of 80°C, concentrate under reduced pressure and recover ethanol to obtain a crude extract;

[0027] (2) The medicinal extract obtained in step (1) is adsorbed by activated carbon column, eluted with 60-70% ethanol, and the eluent of 3 times the amount of column volume is collected, concentrated under reduced pressure and collected, and further passed through D101 type macroporous resin Adsorbed on the column, eluted with 50-60% ethanol, collected 3 times the column volume of the eluate, concentrated under reduced pressure, and freeze-dried to obtain the ethanol extract C of betel leaf (3.1 g).

[0028] According to the literature: "Research on the Antioxidant and Antibacterial Activity of Betel Leaf Extract", Liang Hui, et al., 2011...

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 belongs to the field of fruit and vegetable fresh-keeping agents, and in particular relates to a betel aether extract and application thereof as a fruit and vegetable fresh-keeping agent. The betel aether extract is obviously different from ethanol extract of betels or fruits thereof in the prior art in chemical component, and is particularly obviously different in fresh-keeping effects (weight loss ratio, rate of intact fruit, Vc content and content of soluble sugar). The betel aether extract provided by the invention has a good fresh-keeping effect in a concentration range of 5-20mg / mL, and in particular, the fresh-keeping indexes (weight loss ratio, rate of intact fruit, Vc content and content of soluble sugar) when the concentration of the betel aether extract is 10mg / mL achieve the optimum efficiency.

Description

technical field [0001] The invention belongs to the field of fresh-keeping agents for fruits and vegetables, and in particular relates to an ether extract of betel leaves and its application as a fresh-keeping agent for fruits and vegetables. Background technique [0002] Fruit and vegetable preservatives can be divided into two categories, namely chemical synthesis and natural fruit and vegetable preservatives. For a long time, people have used various chemical compounds to study and apply fresh-keeping and storage of fruits and vegetables and have achieved remarkable fresh-keeping and antiseptic effects. However, with the development of science and technology, the improvement of people's living standards, and the enhancement of global environmental protection awareness, the development and research of replacing chemically synthesized preservatives with natural fruit and vegetable preservatives has attracted more and more attention. [0003] It is reported that the ethanol ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/154
CPCA23B7/154A23V2002/00A23V2250/21
Inventor 纪明慧郭飞燕吕纪行陈光英
Owner HAINAN NORMAL UNIV
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