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Method for extracting naringenin from grapefruits

A technology for naringenin and grapefruit, applied in the field of naringenin extraction, can solve the problems of high energy consumption, low extraction rate and long time consumption of naringenin, and achieve the effects of short time consumption, high extraction rate and low energy consumption

Active Publication Date: 2015-01-14
GUILIN NATURAL INGREDIENTS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This invention provides an improved process that can be used on small amounts of material quickly without having to use expensive chemical agents or requiring columns through which it passes. It also has several technical benefits such as being environmentally friendly because fewer harmful substances are released during processing compared with traditional methods like extractive distillation.

Problems solved by technology

This patented technical problem addressed in this patents relates to extracts from natural sources such as citrus fruits or berries for use in medical treatments like pharmaceuticals (narginins) and nutritional supplements. These compounds have various beneficial properties including reducing harmful side effects associated with traditional medicines while improving their efficacy over existing drugs.

Method used

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  • Method for extracting naringenin from grapefruits
  • Method for extracting naringenin from grapefruits
  • Method for extracting naringenin from grapefruits

Examples

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Embodiment 1

[0035] Take the dried pomelo fruit, crush it through a 10-mesh sieve, take 160kg of the undersieve, and put it into 1600L hot water heated to 85°C, continue heating to 100°C, and keep the temperature for extraction for 1.5 hours. The extract was separated, and the filter residue was heated to 100°C with 1600L of 85°C water for extraction for 1.5 hours. The extract was separated and combined with the first extract. Pass the combined extracts through a decanter centrifuge with a rotating speed of 12000 R / min to remove mechanical impurities. After the centrifuge liquid is cooled below 60°C, it is filtered with an ultrafiltration membrane to remove macromolecular impurities. The inlet pressure of the ultrafiltration membrane is 0.25MPA, the outlet pressure is 0.14MPA, and the flow rate is 80M 3 / H. The liquid passing through the membrane is then concentrated by the membrane, the pressure of the solution entering is 0.9Mpa, and the pressure of the solution exiting is 0.45Mpa. Fi...

Embodiment 2

[0037] Take the dried pomelo fruit, crush it through a 10-mesh sieve, remove 200kg of the sieve, and put it into 2000L hot water heated to 85°C, continue to heat to 100°C, and keep this temperature for extraction for 1.5 hours. The extract was separated, and the filter residue was heated to 100°C with 2000L of 85°C water for extraction for 1.5 hours. The extract was separated and combined with the first extract. Pass the combined extracts through a decanter centrifuge with a rotating speed of 12000 R / min to remove mechanical impurities. After the centrifuge liquid is cooled below 60°C, use ultrafiltration membrane to filter out macromolecular impurities. The inlet pressure of the ultrafiltration membrane is 0.25MPA, the outlet pressure is 0.14MPA, and the flow rate is 80M 3 / H. The liquid passing through the membrane is then concentrated by the membrane, the pressure of the solution entering is 0.9Mpa, and the pressure of the solution exiting is 0.45Mpa. Finally, transfer t...

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Abstract

The invention relates to a method for extracting naringenin from grapefruits. The method comprises the following steps: taking dry falling grapefruits, carrying out water-extraction, filtering by using an ultrafiltration membrane, carrying out reduced pressure concentration and crystallization, carrying out acid hydrolysis, and crystallizing the obtained product, so that an over 98% naringenin product is obtained. The method is simple and easy to operate, easily available in raw materials, short in time consuming, less in energy consumption, high in extraction ratio, unnecessary for column passing, and suitable for industrial mass production, less organic solvent is used, the cost is saved, and the environmental pollution is reduced.

Description

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Claims

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Application Information

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Owner GUILIN NATURAL INGREDIENTS CORP
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