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Acid type sophorolipid-containing composition which is suppressed in browning

A technology of lactone-type sophorolipids and sophorolipids, which is applied in detergent compositions, surface-active detergent compositions, anionic surface-active compounds, etc., can solve problems that are not enough for industrial applications or general industrial purposes, time-consuming and expensive

Pending Publication Date: 2022-01-21
SARAYA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is time-consuming and expensive
Therefore, the methods known so far can be used in basic research, but are not sufficient for industrial applications or general industrial use, and further research is required

Method used

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  • Acid type sophorolipid-containing composition which is suppressed in browning
  • Acid type sophorolipid-containing composition which is suppressed in browning
  • Acid type sophorolipid-containing composition which is suppressed in browning

Examples

Experimental program
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Effect test

preparation example Construction

[0151] (IV-2) Preparation of acid-type SL-containing composition

[0152] Generally, a composition containing an acid type SL can be prepared by removing a lactone type SL from the above-mentioned composition comprising a lactone type SL and an acid type SL to reduce a lactone type SL. The composition containing the lactone type SL and the acid type SL used as a starting material may be prepared by itself by using the above method or by a third party, or may be a commercially available product. Such starting materials are commercially available, for example, from Evonik Industries AG (Germany) and Wheatoleo (France).

[0153]A composition containing an acid type SL (hydrolyzate of the present invention) can be produced by subjecting a composition containing a lactone type SL and an acid type SL to the hydrolysis treatment described below. According to this hydrolysis method, the lactone type SL can be efficiently removed from the composition containing the lactone type SL a...

Embodiment

[0181] In order to help understand the structure and effects of the present invention, the present invention is described below with reference to experimental examples. However, the present invention is not limited to these experimental examples (Example and Comparative Example). Various modifications can be made within the spirit of the invention by those skilled in the art. Unless otherwise stated, the following experiments were performed at room temperature (25±5° C.) and atmospheric pressure.

[0182] The various physical properties (hue value (Abs. 440), ethanol-soluble content, ethanol-insoluble content, saponification value and ignition residue) of the compositions containing acid type SL prepared in the following Production Examples 1 and 2 were based on the following The method is determined.

[0183] (a) Hue value of filtrate of hydrolyzate (Abs.440)

[0184] The filtrate after hydrolysis of the composition containing the lactone type SL and the acid type SL was...

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Abstract

The present invention provides: an acid type sophorolipid-containing composition which is suppressed in browning; and a method for producing this acid type sophorolipid-containing composition. An acid type sophorolipid-containing composition according to the present invention, which is suppressed in browning, is characterized in that the filtrate of a lactone type and acid type sophorolipid-containing composition after a hydrolysis treatment has at least one of the characteristics (1) and (2) described below. (1) The hue value (Abs. 440) is 5 or less. (2) The ethanol-insoluble fraction is less than 3% by mass.

Description

technical field [0001] The present invention relates to an acid-type sophorolipid-containing composition in which browning is inhibited and a method for producing the acid-type sophorolipid-containing composition. Furthermore, the present invention relates to a method for inhibiting browning of compositions containing acid-type sophorolipids. Background technique [0002] Biosurfactants ("Biosurfactant", "BS"), known as surfactants of biological origin, are biodegradable and safe. Sophorolipids ("Sophorolipid", "SL"), which are glycolipid-type BSs, are fermentation products obtained by fermentation by yeast. SL can be obtained, for example, by inoculating yeast onto a liquid medium containing a carbon source (for example, sugars such as glucose, and vegetable oils and fats), and stirring the medium while aerating the medium at a mild temperature and under pressure. easily produced. SL has a higher productivity (eg, about 100 g / L) than other BSs. [0003] However, since f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K23/56A61Q19/10C11D1/04C11D1/68A23L29/00A61K8/60A61K47/26
CPCA61Q19/10A23L29/00C11D1/36A61K2800/10A61Q19/00A61K2800/26A61K8/604A61K8/498A61K2800/805A23L29/10A23L29/04C12P19/44C07H15/04C07H1/00A23L33/14A61K8/9728A23V2002/00A61K47/46
Inventor 荒木道阳平田善彦
Owner SARAYA CO LTD