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Dark opal basil leaves or extract thereof having improved storability

a technology of extracts, which is applied in the field of producing dark opal basil leaves or extracts, can solve the problems of low dye concentration, low dye concentration, and moldy leaves, and achieve the effect of high dye concentration

Inactive Publication Date: 2008-08-21
MISHIMA FOODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a process for producing a dark opal basil extract with a high dye concentration that can be stored for a long period of time. The process involves adding salt to dark opal basil leaves, physically treating the leaves to break them open, and then immersing them in an organic acid solution. This process results in a concentrated dye that can be easily stored and used in various applications. The invention also provides a method for controlling the concentration of the dye in the extract by controlling the degree of cell breakage after dehydration.

Problems solved by technology

When a large amount of fresh dark opal basil leaves are to be preserved in the form immersed in acetic acid for a long time, a part of the leaves is occasionally brought into contact with air and such leaves become moldy.
As a result, the dark opal basil leaves immersed in a small amount of vinegar cannot be considered to be sufficient for the dressing for meats and vegetables.
On the other hand, when the leaves are used in a large amount, the immersion thereof must be finished in a short period of time before the molding.
In such a case, the extract having a high dye concentration cannot be easily obtained because the extraction of the dye from the dark opal basil leaves is only weak.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

An Example Wherein the Physical Power was Enough for Breaking the Cells

[0048]Fresh dark opal basil leaves were subjected to a foreign matter-separating treatment to remove hard, thick stems, flower and unripe seeds, worms and other plants. The leaves were then washed with water to remove mud and dusts therefrom. After draining water, 60 g (3%) of salt and 300 g (15%) of wine vinegar (acidity: 7%, pH: 2.85) were added to 2 kg of the leaves.

[0049]Then, the dark opal basil leaves were crumpled or kneaded together with salt by hands with such a power as to break 75% of the cells in the leaves under the acidic condition for 5 minutes. In the course of the crumpling or kneading, water flew out and then water was squeezed from the leaves by hands to dehydrate them. The volume of the leaves thus obtained was as small as only 2% based on the starting material.

[0050]Then, 50% by mass (1 kg), based on the starting dark opal basil leaves, of the wine vinegar (acidity: 7%, pH: 2.85) was added to...

example 2

An Example Wherein the Physical Power was Lower Than That for Breaking the Cells)

[0052]Fresh dark opal basil leaves were subjected to a foreign matter-separating treatment to remove hard, thick stems, flower and unripe seeds, worms and other plants. The leaves were then washed with water to remove mud and dusts therefrom. After draining water, 60 g (3%) of salt and 300 g (15%) of wine vinegar (acidity: 7%, pH: 2.85) were added to 2 kg of the leaves. The leaves, salt and the wine vinegar were thoroughly mixed with hands for about 30 seconds.

[0053]Then, a weight weighing 10 to 15 kg was placed on the leaves at ambient temperature (for example, 10 to 30° C.) and they were left in such a state for 1 hour. While they were left under these conditions, water slowly flew out of the leaves. By squeezing water from the leaves by hands, the dehydration was completed. In the course of the process, the leaves were sampled and examined with the microscope to confirm that not more than 60% of the ...

application example 1

French Dressing

[0063]

CompositionWhite wine vinegar50gBasil extract obtained in Example 125gSalad oil75gSalt2gMustard2gPeppera small amountBasil leaves obtained in Example 23g

[0064]The starting materials other than the salad oil were mixed together. The salad oil was added in small portions to the obtained mixture while they were stirred to obtain French dressing.

[0065]The obtained dressing was vivid dark opal and had a moderate basil flavor because of the basil leaves and extract contained therein. On the other hand, when the basil leaves and extract obtained in Comparative Example 1 were used, the dressing had only a low tone of the color, the sour taste of the vinegar was strong, and it was lacking in the mildness.

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Abstract

The present invention provides dark opal basil leaves or an extract thereof, containing anthocyanin dye derived from the dark opal basil, in concentrated form.The process of the present invention comprises steps of (1) adding salt to dark opal basil leaves, (2) dehydrating the dark opal basil leaves obtained in step (1), and (3) immersing the dark opal basil leaves obtained in step (2) in an organic acid solution. In step (2), the dark opal basil leaves to be dehydrated are physically treated to such an extent that the cells thereof are broken or not broken.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention relates to a method for producing dark opal basil leaves or an extract wherein anthocyanin dye derived from dark opal basil leaves is contained in concentrated form thereof.BACKGROUND OF THE INVENTION[0002]There are various kinds of basils, and their flavors and colors are also various. As herbs have become popular in Japan, the cultivation of basils, having green color in general, such as sweet basil in vegetable gardens has recently become popular.[0003]Because anthocyanin dye contained in dark opal basil leaves easily decolors under alkaline and neutral conditions, fresh or freshly-picked leaves of the dark opal basil are preserved by immersing them in acetic acid. When a large amount of fresh dark opal basil leaves are to be preserved in the form immersed in acetic acid for a long time, a part of the leaves is occasionally brought into contact with air and such leaves become moldy. Therefore, only a small amount of the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A23L1/272A21D2/36A23B7/022A23L1/275A23L2/02A23L5/41A23L27/14A23L27/40C09B61/00C12J1/08
CPCA21D2/36A23B7/022A23L1/223C12J1/08A23L1/2751A23L2/02C09B61/00A23L1/237A23L5/43A23L27/14A23L27/40
Inventor MOTOYAMA, JUNBABA, KENJI
Owner MISHIMA FOODS