JP2013255469A - Sorghum fermented extract - Google Patents

Abstract

[PROBLEMS] To eliminate the possibility of allergy inducing a glycolipid material having excellent immunostimulatory power.
In a conventional method for producing a glycolipid material, wheat, which has been designated as a designated allergen, is used. Instead of wheat, sorghum known as a wheat substitute grain is used. As a result, it is possible to provide a material that does not cause allergies while maintaining the immunostimulatory action of glycolipids.
[Selection] Figure 1

Description

  The present inventors have clarified that gram-negative bacterial glycolipids have an immunostimulatory effect when taken orally or percutaneously, and can be used for prevention / amelioration of diseases and maintenance of health. Furthermore, as an industrial glycolipid material production method, we developed a method for cultivating gram-negative bacteria using wheat flour as a carbon source and extracting glycolipid from the culture solution, and the production method and the glycolipid material obtained by the production method Patents have been filed for foods, cosmetics, and the like containing the glycolipid material. By the way, the prevalence of food allergies is increasing recently, and consumers and manufacturers are increasingly concerned about allergies caused by wheat. In the cosmetics field in particular, wheat allergies have occurred in people who have never been symptom or aware of wheat allergies due to the wheat hydrolyzate blended in soap, and the ingredients of wheat-derived ingredients are avoided. It has become. Against this background, we focused on white sorghum, which has become known as a wheat replacement grain.

  Sorghum is a grain of Gramineae native to tropical Africa called sorghum, and is the fifth largest grain in the world after wheat, rice, corn and barley in terms of production area. It is a tropical and subtropical crop that is resistant to drying and grows in areas where rice, wheat, etc. do not grow (reference: wikipedia sorghum). White sorghum, which has been improved in the United States and contains less tannin, is being developed. Because it does not contain gluten contained in flour, it is said that even people with wheat allergies can eat it. In addition, it is said to be a cereal having such characteristics as richer minerals than rice, rich in B vitamins, and more unsaturated fatty acids than wheat and brown rice.

  It was clarified that a glycolipid material can be obtained by culturing Gram-negative bacteria using white sorghum as a nutrient source. Glycolipid material produced by this method is inferior in terms of its immune activating ability compared to glycolipid materials obtained using conventional wheat, but on the other hand, it does not contain allergens There is sex.

  Glycolipids act on macrophages and the like, which are central control cells of innate immunity, and show foreign body exclusion promotion, wound healing promotion, allergy suppression action and the like. Therefore, the material obtained by fermenting white sorghum with gram-negative bacteria is a functional food material that exhibits infection prevention effect, cancer treatment effect, wound healing promotion effect, lifestyle-related disease prevention effect, antiallergic effect, etc. As effective. In addition, it has preventive effects on metabolic diseases, aging promotion, cancer, infertility, dementia, allergic diseases and the like. Furthermore, the effect as a skin care material which shows wound healing promotion of skin, dermatitis suppression, anti-aging, whitening effect, etc. can be expected.

  Any gram-negative bacterium can be used as long as it contains a glycolipid (lipopolysaccharide), peptidoglycan, flagenin, a gene containing an unmethylated cytosine / guanine sequence, and the like. In particular, bacteria with dietary experience are desirable from the viewpoint of safety, and include Escherichia coli, acetic acid bacteria, xanthomonas bacteria, zymomonas bacteria, pantoea bacteria, enterobacter bacteria, and the like.

  Gram-negative bacteria are cultured using cereals known not to cause allergies as nutrient sources to produce immunostimulatory substances.

  The fermentation and culturing method of the present invention is characterized in that sorghum is fermented with a facultative anaerobic gram negative bacilli and the gram negative bacilli are cultured at the same time.

NO production from RAW264.7 cells by Somacy-WS001 and Somacy-CL001

Production of fermented white sorghum extract

1. Ingredients Salt, Polypeptone, Yeast Extract (Yeast Extract), Glycerin, Ammonium Chloride, Ferrous Potassium Phosphate, Ferrous Sulfate, Magnesium Sulfate, Ammonium Sulfate, Dibasic Potassium Phosphate, Calcium Chloride, White Sorghum, Amylase, Nucleicin , Emazole O-30V, KM-72, Sodium hydroxide, Sulfuric acid, Phosphoric acid, Charcoal (activated charcoal), Celpure S65 (Diatomaceous earth filter aid), Acetic acid, Max 1000

2. Gram-negative bacteria Pantoea agglomerans

3. Fermentation culture 2 L of a medium was placed in a 3 L jar fermenter, sterilized, 5% of a pre-culture solution of Pantoair agglomerans was added, and the mixture was cultured at 30 ° C. for 50 hours. The medium composition is as follows. White sorghum was used after being previously treated with amylase. During the cultivation, the pH was adjusted to 6.7-7, and when foaming, antifoam was added.

White Sorghum 0.5%
α-amylase 0.009%
Nucleicin 0.004%
Glycerol 6%
NH4Cl 1%
K2HPO4 0.1%
KH2PO4 0.03%
FeSO4 ・ 7H2O 0.005%
CaCl2 ・ 2H2O 0.01%
KM72 0.015%
MgSO4 ・ 7H2O 0.05%

4). Glycolipid extraction After completion of the culture, the mixture was sterilized by heating at 90 ° C. for 20 minutes, and at the same time, the glycolipid was extracted. Thereafter, the pH was acidified with acetic acid to prevent the propagation of various bacteria, and the cells were removed by centrifugation.

5. Purification Activated carbon was added to the supernatant after centrifugation to adsorb fine residues and removed by centrifugation. The supernatant after centrifugation was further clarified by adding celite and filtering. The clarified solution was concentrated through a UF membrane. For cosmetic use, NaCl and EtOH are added to the UF membrane concentrated solution to temporarily precipitate the glycolipid, and the precipitate is redissolved in sterilized distilled water to readjust the glycolipid concentration to 0.01%. "White sorghum fermented extract" (Somacy-WS001).

  The immunostimulatory activity of “White Sorghum Fermented Extract” (Somacy-WS001) was compared with “Wheat Fermented Extract” (Somacy-CL001), which is a conventional glycolipid material. Immunostimulation activation was evaluated by the amount of nitric oxide secreted by stimulating the mouse macrophage cell line RAW264.7 with both materials at the same concentration.

  The measurement results are shown in FIG. 1 as NO production from RAW264.7 cells by Somacy-WS001 and Somacy-CL001. Comparison was made with the active ingredient IP-PA1 concentration of each sample. Each point and bar represents the mean and SD. The test was performed with N = 3. Since Somacy-WS001 and Somacy-CL001 showed almost the same dose-dependent increase in nitrite concentration, it can be said that there is no difference in macrophage activation ability seen in NO production.

  The allergenicity (irritation and sensitization) of the white sorghum fermented extract was examined by 51 patch tests.

1. 1% aqueous solution of test substance, white sorghum fermented extract (Somacy-WS001), distilled water as negative control

2. Subject information ・ Number of entries 53 people ・ Number of people who completed the test 51 people ・ Age 22-64 years old ・ Gender Male 10 people
43 women and 40 races Caucasian
10 Spanish
Three asians

3. Consumables / Patch type: Parke-Davis Hypoallergenic Readi Bandages or equivalent • 1 ml syringe (no needle)

4). Method Subjects apply patches on their backs at the testing facility and then remove the patches themselves 24 hours after returning home. Approximately 24 hours later, go to the testing facility and observe the skin condition, and if there are no problems, apply the patch repeatedly. This procedure was performed for 3 weeks on Monday, Wednesday and Friday and repeated up to 9 times (primary stimulation test). For patch application, 0.2 ml of the test substance and distilled water as a negative control were applied to the hypoallergenic patch for occlusion, and applied directly to the skin on the left or right side of the back in the subscapular region of the subject's back. After 10 to 14 days after the completion of the nine occlusion patch tests, the occlusion patch for 24 hours was performed once again, and the skin condition was observed 24 and 48 hours after the patch was removed (feeling) Productivity test). During the patch test, if the patch was applied to water, exposed directly to the sun, or not coming to the testing facility on the designated date, the results of the subject were excluded from the data. The final decision was made by a dermatologist.

5. Results No adverse events of any kind were observed during the study period for 51 subjects. That is, as a result of the skin occlusion patch test, the test substance showed no primary irritation and no sensitization.

Claims (7)

  A fermentation and culturing method comprising fermenting a sorghum (Japanese name: oyster millet) with a facultative anaerobic gram-negative bacilli and simultaneously culturing the gram-negative bacilli.   The fermentation and culture method according to claim 1, wherein the facultative anaerobic gram-negative bacillus is Pantoea agglomerans.   The fermentation and culture method according to claim 1 or 2, wherein the sorghum is sorghum, white sorghum or a mixture thereof. A sorghum fermented extract obtained by the fermentation and culture method according to any one of claims 1 to 3.   A sorghum fermented extract powder obtained from the sorghum fermented extract according to claim 4.   A fermented sorghum extract according to claim 4 or the fermented sorghum extract according to claim 5 is blended. The sorghum fermented extract blend according to claim 6, wherein the sorghum fermented extract blend is a pharmaceutical, veterinary drug, quasi-drug, cosmetic, food, functional food, feed, or bath preparation.

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