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Method for removing ginkgolic acid in gingko biloba seeds

A technology of ginkgo seeds and ginkgolic acid is applied in the directions of application, food preparation, food science, etc., can solve the problems such as the inability to use ginkgo seeds, and achieves the effects of convenient operation, improved edibility, and simple steps

Inactive Publication Date: 2014-08-06
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cannot be used to treat ginkgo seeds, because the direct mixing of alkali and ginkgo seeds will affect its application as food

Method used

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  • Method for removing ginkgolic acid in gingko biloba seeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for removing ginkgolic acid in ginkgo seeds, the steps are as follows:

[0024] (1) Remove the seed coat of the ginkgo seeds, weigh 50g in a 500ml beaker B1, and add 100ml of distilled water therein;

[0025] (2) Prepare 20wt% NaOH solution in 500ml beaker C1;

[0026] (3) Put B1 and C1 in the pressure cooking kettle A, heat to 120°C, and treat at constant temperature for 40 minutes;

[0027] (4) As a control, another 50g was weighed into a 500ml beaker B1, 100ml of distilled water was added to it, and nothing was added to C1, and the two were placed in an autoclave, heated to 120°C, and treated at a constant temperature for 40min;

[0028] (5) Vacuum-dry the twice-treated ginkgo seeds to constant weight after cooling, measure the ginkgolic acid content therein respectively, measure three times continuously, and calculate the ginkgolic acid content of the ginkgo seeds after heat treatment with alkali simultaneously to be 2.58 ± 0.03ppm, not The content of gin...

Embodiment 2

[0030] A method for removing ginkgolic acid in ginkgo seeds, the steps are as follows:

[0031] (1) remove the seed coat of the ginkgo seeds, weigh 50g in a 500ml beaker B1, add 100ml distilled water thereto, and prepare 10wt% NaOH solution in a 500ml beaker C1;

[0032] (2) Put both B1 and C1 in the pressure-resistant cooking kettle A, heat to 120°C, and treat at a constant temperature for 60 minutes; as a control, weigh 50g into a 500ml beaker B1, add 100ml of distilled water to it, and do not put it into C1 For any substance, place the two in an autoclave, heat to 120°C, and treat at a constant temperature for 60 minutes;

[0033] (3) after cooling, the ginkgo seeds that are processed twice are vacuum-dried to constant weight, measure the ginkgolic acid content wherein respectively, measure continuously three times, can calculate that the ginkgo seed ginkgolic acid content after the simultaneous heat treatment with alkali is 1.90 ± 0.03ppm, The content of ginkgolic acid in...

Embodiment 3

[0035] A method for removing ginkgolic acid in ginkgo seeds, the steps are as follows:

[0036] (1) Remove the seed coat of the ginkgo seeds, weigh 50g in a 500ml beaker B1, add 100ml distilled water to it, and prepare 10wt% KOH solution in a 500ml beaker C1;

[0037] (2) Put both B1 and C1 in the pressure-resistant cooking kettle A, heat to 120°C, and treat at a constant temperature for 60 minutes; as a control, weigh 50g into a 500ml beaker B1, add 100ml of distilled water to it, and do not put it into C1 For any substance, place the two in an autoclave, heat to 120°C, and treat at a constant temperature for 60 minutes;

[0038] (3) after cooling, the ginkgo seeds that are processed twice are vacuum-dried to constant weight, measure the ginkgolic acid content wherein respectively, measure continuously three times, can calculate and the ginkgo seed ginkgolic acid content after the simultaneous heat treatment with alkali is 1.98 ± 0.04ppm, The content of ginkgolic acid in gin...

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Abstract

The invention relates to a method for removing ginkgolic acid in gingko biloba seeds. The method is characterized by comprising the following steps: the gingko biloba seeds peeled are placed into an opened container, then water is added, an alkali solution is added into another opened container, the two opened containers are placed in a pressure resistant distilling kettle for heat treatment, the heating and digesting temperature ranges from 105 DEG C to 200 DEG C, the processing time lasts for 20 to 60 min, and the concentration of the alkali solution is 10 wt%, in saturation. According to the method provided by the invention, alkali and the gingko biloba seeds (ginkgo) are separately placed into a pressure tight case at an interval, heating is performed, the gingko biloba seeds are stewed, alkali is used for absorbing carbon dioxide produced during the ginkgolic acid heating and the decarboxylating process, the removing effect of the ginkgolic acid in the gingko biloba seeds is enhanced, and ginkgolic acid residue reduction and the processing time shortening are facilitated.

Description

technical field [0001] The invention belongs to the field of food detoxification and relates to a method for separating strong alkali and ginkgo seeds (ginkgo) from each other and placing them in the same airtight device for heating and cooking to strengthen the removal effect of ginkgolic acid in ginkgo seeds. Background technique [0002] Ginkgo is an ancient tree species with a long history, and 80% of the existing ones are in China. Ginkgo seeds are also called ginkgo because the remaining shelled core is silvery white after the pulp is removed. Ginkgo biloba has a certain curative effect on the treatment of ischemic cerebrovascular disease, vascular dementia, acute cerebral infarction, chronic schizophrenia, retinal sclerosis and other diseases; There is also a certain effect; and in food, ginkgo is rich in nutrition, but because it contains toxic ginkgolic acid components, it limits its application in food. [0003] Ginkgolic acid is a class of 2-hydroxy-6-alkylbenzo...

Claims

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Application Information

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IPC IPC(8): A23L1/015A23L5/20
CPCA23L5/276A23V2002/00
Inventor 戴玉杰孙国娟孙紫悦张同存贾士儒张朝正张黎明
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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