Method for preparing citrus-derived complex prebiotic agent and use of the same

Patent metadata

Field	Value
Publication number	US-11110143-B2
Application number	US-201816754137-A
Country	US
Kind code	B2
Filing date	Sep 27, 2018
Priority date	Sep 27, 2018
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

The present disclosure discloses a method for preparing a citrus-derived complex prebiotic agent. The method comprises the following steps: removing external citrus peels after blanching citrus fruits with hot water, soaking citrus segments after splitting with an acid solution and an alkali solution to remove membranes of the citrus segments, and adjusting the pH of the obtained alkali soaking water with acid soaking water or acid to be weakly acidic or neutral to obtain the complex prebiotic agent, which has the function of reversing intestinal flora disorders. Compared with the traditional prebiotic product preparing method, the product prepared by the method contains prebiotic functional components with different targets such as pectin, flavonoids, oligosaccharides, and other fibers at the same time, and has the efficacies of regulating intestinal flora and reversing intestinal flora disorders caused by antibiotics. At the same time, the preparing method has the characteristics of simple operation and low cost, perfectly supplements a comprehensive utilization process of citrus fruit processing, solves the discharge problem of citrus fruit processing water, and generates very good social benefits.

First claim

What is claimed is:

1. A method for preparing a citrus-derived complex prebiotic composition, comprising the following steps:
(1) subjecting segments of a citrus fruit to a soaking treatment with a certain volume of an acid and water solution having a concentration greater than 0.05 g/100 mL, until membranes of the segments of the citrus fruit become gel-like, and filtering the segments of the citrus fruit to obtain an acid-treated water;
(2) transferring the acid-treated segments of the citrus fruit to a certain volume of an alkali and water solution having a concentration greater than 0.1 g/100 mL, subjecting the acid-treated segments of the citrus fruit to soaking treatment with the alkali and water solution until the membranes of the segments of the citrus fruit are dissolved, and performing filtering to obtain an alkali-treated water; and
(3) adjusting the pH of the alkali-treated water with the acid-treated water to a pH of 4-7, and performing filtering to obtain a complex prebiotic composition wherein the alkali is selected from the group consisting of NaOH, Na 2 CO 3 , KOH, K 2 CO 3 , Mg(OH) 2 , and Ca(OH) 2 , the acid is selected from the group consisting of hydrochloric acid, citric acid, oxalic acid, tartaric acid, malic acid, and lactic acid, and the citrus fruit is selected from the group consisting of Citrus reticulate Blanco, pomelo, orange, grapefruit, and lemon.

2. The method of claim 1 , wherein the ratio of the citrus segments to the acid and water solution is 1 g:1 mL to 1 g:5 mL.

3. The method of claim 1 , wherein the concentration of the acid and water solution is 0.4 to 0.8 g/100 mL, and the treatment is performed at a temperature of 5° C. to 80° C. for 20 minutes to 40 minutes.

4. The method of claim 1 , wherein the ratio of the citrus segments to the alkali and water solution is 1 g: 1 mL to 1 g:5 mL.

5. The method of claim 1 , wherein the concentration of the alkali and water solution used is 0.4 to 0.8 g/100 mL, and the treatment is performed at a temperature of 5° C. to 80° C. for 10 minutes to 15 minutes.

Assignees

• Univ Zhejiang

Inventors

• Chen Shiguo
• Zheng Jiaqi
• Ye Xingqian
• Liu Donghong
• Zhang Hua

Classifications

• A23L33/135

  Bacteria or derivatives thereof, e.g. probiotics · CPC title

• A61K9/08

  Solutions {(composition of solutions A61K47/00)} · CPC title

• A23L33/30

  Dietetic or nutritional methods, e.g. for losing weight (A23L33/10 takes precedence) · CPC title

• A61K2236/331

  using water, e.g. cold water, infusion, tea, steam distillation or decoction · CPC title

• A23L33/105

  Plant extracts, their artificial duplicates or their derivatives · CPC title