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Agent for improving alpha acid content or hop oil content in hop

A technology for hops and additives, which is applied in the directions of biocides, animal repellents, plant growth regulators, etc., can solve the problems of unknown increase in the content of hops alpha acid or hop oil, and achieve the effect of increasing added value and increasing content.

Inactive Publication Date: 2009-12-09
COSMO TRADE & SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its effect of increasing the content of hop alpha acids or hop oil is completely unknown

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Seedlings of Zateckypoloskory cervenak grown by traditional methods in Slovakia in 2006 were foliarly treated with aqueous 5-aminolevulinic acid (ALA) hydrochloride solution shown in Table 2 at the times indicated in Table 1. Table 3 shows the alpha acid, beta acid, and hop oil content with and without treatment.

[0063] Table 1 Processing Conditions

[0064] processing date

[0065] The composition of the treatment solution stock solution of table 2ALA

[0066] 5-Aminolevulinic acid hydrochloride

[0067] Table 3 test results

[0068]

[0069] It is clear from Table 3 that the content of alpha acid, beta acid, and hop oil was significantly increased by ALA treatment. This variety is relatively low in alpha and beta acids and high in hop oil, but further increases hop oil and also increases alpha and beta acids. ALA is known to have an effect of increasing yield and dry weight is also increased (as shown by reference). However, the v...

Embodiment 2

[0071] Seedlings of the high alpha acid type Marynka species conventionally grown in Poland in 2006 were foliar treated with the same ALA hydrochloride aqueous solution as in Example 1 at the times shown in Table 4. Table 5 shows the alpha acid and beta acid content with and without treatment.

[0072] Table 4 Processing Conditions

[0073]

[0074] Table 5 test results

[0075]

[0076] It is clear from Table 5 that the content of alpha acids was significantly increased by ALA treatment. Although this variety is a type having a high alpha acid content, and it is considered that it is difficult to express an effect with certainty, it shows a sufficient effect. ALA is known to have an effect of increasing yield and dry weight is also increased (as shown by reference). However, the values ​​in Table 5 are content / weight, so this is an unexpected effect from the existing information.

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PUM

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Abstract

To provide a hop alpha acid or hop oil content enhancer, which increases the content of a hop alpha acid or a hop oil. A hop alpha acid or hop oil content enhancer, which comprises 5-aminolevulinic acid, or a derivative thereof represented by the following formula (1), or a salt thereof as an active ingredient: R2R1NCH2COCH2CH2COR3 (1), wherein R1 and R2 each independently represents a hydrogen atom, an alkyl group, an acyl group, an alkoxycarbonyl group, an aryl group, or an aralkyl group; R3 represents a hydroxyl group, an alkoxy group, an acyloxy group, an alkoxycarbonyloxy group, an aryloxy group, an aralkyloxy group, or an amino group.

Description

technical field [0001] The present invention relates to an agent for increasing the alpha acid or hop oil content of hops. Background technique [0002] It is generally known that hops are added as a spice to beer. Its purpose is to give beer its unique aromatic aroma and refreshing bitterness, and to improve the persistence of beer head. Such efficacy is attributed to the action of hopbitrin, which is the active ingredient of hops. In particular, alpha acids, which are a component of hop bitters, function to impart a refreshing bitter taste. [0003] On the other hand, hop oil in hop bitters plays a role of imparting aromatic flavor. In these hop oils, for example myrcene strongly influences the aroma. In addition, in actual beer, there are flavors after oxidation of essential oils. This oxidized flavor also affects the aroma. In particular, it is understood that oxidation products of myrcene impart citrus aromas and that of oxalene impart floral aromas. [0004] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/44A01G7/06A01N37/46A01P21/00
CPCA01N37/44
Inventor 田中彻河田聪史
Owner COSMO TRADE & SERVICE CO LTD
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