Process for hierarchically extracting limonin, flavonoid and dietary fiber from orange peel residues

A technology of citrus and skin dregs, which is applied in the fields of flavonoids, dietary fiber, and limonine extraction, which can solve the problems of complicated process, waste of raw and auxiliary materials, and large amount of waste discharge.

Inactive Publication Date: 2010-10-20
SOUTHWEST UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

At present, the method of extracting limonine and dietary fiber from skin dregs is mainly to extract separately, which has defects such as complex process, waste of raw and auxiliary materials, and large waste discharge.

Method used

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  • Process for hierarchically extracting limonin, flavonoid and dietary fiber from orange peel residues
  • Process for hierarchically extracting limonin, flavonoid and dietary fiber from orange peel residues

Examples

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Embodiment Construction

[0005] The process of extracting citrine, flavonoids and dietary fiber in layers from citrus peel is realized from the following four aspects:

[0006] 1. Take the fresh peel (1) of the citrus juice, separate the residue (2) to obtain two parts, the seed (3) and the peel (12), and put the seeds into a blast dryer at 60°C , 80°C, and 105°C temperature sections were dried for 40 minutes (4), crushed and passed through a 40-mesh sieve, and then the sieved fine skin residue was put into a Soxhlet extractor and degreased with petroleum ether at 60-90°C for 20-24 hours (5), then use acetone to extract for 5-8 hours (6), heat and concentrate the acetone extract under a vacuum condition of 0.070-0.085MPa (7), dissolve the concentrate with dichloromethane and filter it (8) , add 3 times the volume of isopropanol to the filtrate and mix well (9), then put it under the condition of 4° C. for static crystallization (10), and recrystallize the crystal 2 to 3 times (11) to obtain citrine. ...

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Abstract

The invention relates to a process for hierarchically extracting limonin, flavonoid and dietary fiber from orange peel residue, and the orange peel residue is used as a raw material. According to different properties and characteristics of limonin, flavonoid and dietary fiber to be extracted, different methods and technical processes are adopted after primary production to avoid mutual interference among the contents and hierarchically and sequentially extract limonin, flavonoid, soluble dietary fiber and insoluble dietary fiber. Therefore, the invention achieves purpose of decreasing the cost, improving the efficiency, simplifying the process and respectively extracting a plurality of contents.

Description

technical field [0001] The invention relates to a process for extracting citrine, flavonoids and dietary fiber (including soluble and insoluble dietary fiber) layer by layer after one-time feeding of citrus peel. Background technique [0002] About 50% of the pomace of citrus fruit needs to be further utilized or processed after being processed by squeezing the juice, so as to improve the utilization rate and value of the raw material, and then improve the benefit. According to research, the seed part of citrus pomace (including seeds, capsule and pericarp, etc.) is rich in limonine, and the capsule and pericarp are rich in dietary fiber. Limonine has the function of preventing and treating cardiovascular diseases, inflammation, cancer, allergies and other diseases; dietary fiber has a variety of physical and chemical properties and physiological functions, and has strong oil holding capacity, water holding capacity, compatibilization and induction of microorganisms. It can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J73/00C07G99/00A23L1/28A23L33/105A23L33/21
Inventor 孙志高吴厚玖马亚琴郭莉黄学根王华
Owner SOUTHWEST UNIVERSITY
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