WO2002063947A1 - Carporphore de lentinula edodes et procede de selection et de culture correspondants - Google Patents
Carporphore de lentinula edodes et procede de selection et de culture correspondants Download PDFInfo
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- WO2002063947A1 WO2002063947A1 PCT/JP2002/001031 JP0201031W WO02063947A1 WO 2002063947 A1 WO2002063947 A1 WO 2002063947A1 JP 0201031 W JP0201031 W JP 0201031W WO 02063947 A1 WO02063947 A1 WO 02063947A1
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- temperature
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/06—Fungi, e.g. yeasts
- A61K36/07—Basidiomycota, e.g. Cryptococcus
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P17/00—Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms
- C12P17/18—Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin
- C12P17/182—Heterocyclic compounds containing nitrogen atoms as the only ring heteroatoms in the condensed system
Definitions
- the present invention relates to shiitake mushroom fruit bodies containing a high content of eriyudenin, a component specific to shiitake, exhibiting a serum cholesterol-lowering effect, and Lenti nu laed odes having a high eriyudenine-producing ability and breeding thereof. And cultivation methods, and belongs to shiitake cultivation technology. Background art
- Shiitake mushroom was found to have a substance that lowers serum cholesterol levels (Kaneda, T., Tokuda, S., J Nutr 90 (4) 371-376 (1966) Dec), and the active ingredient was isolated ( Chibata, I., Okumura, K., Kmeyama, S., Kotera, K., Experientia 25 (12) 1237-1238 (1969) Dec 15) and Eritadenine.
- Erythenodenine is a compound in which hydroxybutyric acid is added to adenine. It is not found in other mushrooms except in trace amounts in pine shroom (Kuritake), and is a component unique to shiitake.
- This eritadenine is said to increase serum cholesterol, which is a risk factor for arteriosclerosis. If you eat 9 g of dried shiitake mushrooms or 90 g of raw shiitake mushrooms daily for one week, the cholesterol concentration will be about 6%. (Suzuki S., Ohshima, S., Mushroom Science IX (Part I) Proceedings of the Ninth International Scientific Congress on the Cultivation of Edible Fungi, Tokyo, 1974, 463-467 ).
- homocysteine an intermediate in amino acid metabolism
- erythrodenin inhibits the synthesis of homocysteine.
- Eryubidenine which has these medicinal effects, is present together with deoxyeridenine in shiitake mushrooms, and is abundantly contained in shiitake fruit bodies, especially in fungal umbrellas, but the abundance of each is 50.7 to 92.7 mg / day.
- l 00 gDW, 7.7 to 13.6mg / 100 gDW (Yasuo Aoyagi, Etsuko Masada, Tatsuyuki Sugawara, “Nutrition and Food” Vol. 29; No. 8, 460-461 (1976)) Considering the average Shiyuga intake per person (0.58 dry matter per day), the content is low to expect its medicinal effect.
- traits that show continuous mutations are considered to be polygene-controlled in the same way as yield, and in order to accumulate genes related to erythrodenin content, multiple selected strains with a high erythrodenine-producing ability were cross-crossed.
- spores isolated from the selected mating parent were crossed, high-content strains were selected from among them, and crossing was repeated between them.
- the second generation strain was air-conditioned (at 17 ° C). C, RH 90%), it is possible to harvest shiitake mushrooms that contain 2 to 4 times the amount of conventional And the ability to obtain high yields (400 g / l.
- An object of the present invention is to provide shiitake mushrooms that can contribute to maintaining health with conventional intakes and even lower intakes by growing and cultivating shiitake mushrooms containing a larger amount of eriyudenine. is there.
- Another object of the present invention is to use the shiitake mushrooms cultivated in this way as a health food material. Disclosure of the invention
- the present invention provides
- a shiitake mushroom body characterized in that the fungus umbrella contains at least 170 mgZl 00 gDW of erythrodenin.
- Le nti nu lae dod characterized in that it has the ability to produce fruiting bodies having an eritadenine content of 17 Omg / 100 gDW or more in a fungus umbrella at a temperature of 15 to 20 ° C by culturing. es).
- Lenti nu lae do des From the known Lenti nu lae do des, a plurality of those having high erythrogenic denin-producing ability were selected and bred in a mass. The above fruiting bodies were cultured at room temperature.
- a method for breeding Lentinula 1 aedodes, characterized in that Lentinula edodes (Lenti nu laed odes) having the ability to produce Lentinu la edodes is obtained.
- Lentinu la aedodes is formed by culturing Lenti nu 1 aedodes at a temperature of 25 to 34 to form a fruiting body after formation of a primordium, and Le nti nu lae dod es. The cultivation method. BRIEF DESCRIPTION OF THE FIGURES
- Fig. 1 is a photograph showing the electrophoresis of the DNA of the strain H44 by RAPD method.
- a size marker consisting of a 200 bp ladder DNA from the left side (200 bp and 400 bp increasing sequentially from the bottom), an H44 strain, The four strains on the right are commercial strains of the H78 strain.
- Fig. 2 is a photograph showing the electrophoresis of the DNA of strain H44 by the IGRA2 method.
- the size is composed of 200 bp ladder DNA from the left side (200 bp and 400 bp increase sequentially from the bottom).
- the H44 strain and the H78 strain, the four on the right are commercial strains.
- beech and corn plan were mixed at a weight ratio of 4: 1 and the medium adjusted to 65% water was packed in 1.3 kg in a plastic culture bag, and the temperature was 121 ° C for 90 minutes.
- inoculate with shiitake mushroom for screening culture at 70% humidity for 90 to 120 days while maintaining the temperature at 22 to 23 ° C, remove the culture bag, and temperature to 17 °
- the fruiting body was generated under the conditions of C, humidity of 90% and light.
- the resulting fruiting bodies were freeze-dried immediately after harvest and powdered to obtain a sample for erythrodenine quantification.
- the thus obtained erythridine denin fraction was dissolved in acetonitrile containing 5 mM tetra-n-butylammonium bromide and 2 OmM dipotassium hydrogen phosphate, and subjected to liquid chromatography (D e V e 1 osi 1 RP Quantify at 260 nm with detection wavelength of Aqu eou s 4.5 x 250 mm, flow rate 1. Om 1 Z min).
- Basidiospores were collected from each fruiting body of the selected “strain numbers 8123, C-04, and A-123 strains” and suspended in sterilized distilled water.
- Matometa one f the spore concentration, after diluted to about ixi 0 6 spores Zm 1, the same ratio (1: 1: 1) were mixed in by seeding the agar plate medium and (collective cross), After culturing at a temperature of 25 ° C for 1 to 2 weeks, the mycelium growing on an agar plate medium (a 9 cm diameter petri dish) was cut off and inoculated on an agar slant medium.
- This operation is performed by inoculating about 10 agar slant media (test tubes) for one agar plate medium and inoculating about 10 agar media into 100 test tubes. After that, the growing tip of the cultured hypha was transferred to a new agar slant medium (test tube) and further cultured. By repeating this operation several times, a uniform dikaryon was obtained.
- the obtained binuclear hypha was cultivated in a fungal bed medium to harvest fruit bodies, and its basidiomyocytes were collected, and at the same time, the erythrocyte denin content was measured.
- strain number 8123, C_04, and A-123 strains As described above, about 100 strains of binuclear hyphae were cultivated by collective crossing of “strain number 8123, C_04, and A-123 strains”, and eritadenine content was measured for 81 strains that formed fruiting bodies.
- the H44 strain is superior in terms of the amount and duration of fruiting body occurrence, so it is designated as "Le nti nu laed odes H44" and is deposited with the National Institute of Advanced Industrial Science and Technology (AIST). Deposited at the Center (address: Tsukuba-Higashi 1-chome 1-1 Chuo No. 6 Ibaraki, Japan) under the deposit number FERM BP_ 7852 (Deposit date: October 6, 2000).
- the mycological and biochemical properties of the H44 strain are as follows.
- Pattern color skin color
- the back surface becomes brown by adding 0.1% of gallic acid, showing the characteristics of white rot fungi.
- the hypha pre-cultured on GMY agar medium is punched out with a cork pole, inoculated on PDA medium and GMY medium, cultured for 3 days, and then cultured for 5 days at each temperature using a temperature gradient culture device. Hyphal elongation was measured.
- Hyphal pieces punched out with a cork pole were inoculated with GMY liquid medium adjusted to each pH, and cultured at a temperature of 25 for 30 days.
- the protein was dissolved in TE and treated with liponuclease (RNase 20 gZm1) to remove proteins with phenol.
- RNase 20 gZm1 liponuclease
- the DNA prepared in this manner was diluted to a concentration of 25 ng / l (see Ann E R. Kubelic Les J. Szabo, Curr Genet (1995) 28, 384— 389).
- PCR amplification conditions
- PAPD random amplified polymorphic DNA
- OPA-04 5'-1A ATCGGGCTG
- IGR2 liposome RNA gene Of the non-translated region
- the amplified product was electrophoresed on a 1.5% agar gel and stained with ethibumuchimid.
- Beech and corn bran were mixed at a weight ratio of 4: 1 and the water content was adjusted to 65%. After 1.3 kg of the bacterial bed was cultured for 120 days (at a temperature of 22 to 23 ° C), the temperature was raised to a temperature of 10 to 28 ° C. When the fruiting body was generated under the conditions, as a result, the first generation of the fruiting body generated 57 to 204 g of fruiting body in any range, and the adaptation temperature had wide characteristics.
- Beech and corn bran are mixed at a weight ratio of 4: 1.
- the culture medium adjusted to 65% water is packed in 1.3 kg into a plastic culture bag, sterilized at a temperature of 121 ° C for 90 minutes, and then the strain is added to the culture medium. H44 was inoculated.
- the initial amount of fruiting bodies generated was 135 gZl. 3 kg of bacterial bed, and the erythrodenine content was 214 mg / l 00 gDW, about 2.4 times higher than the conventional product.
- cultivation tests were performed with the temperature of the air-conditioning chamber at 17 ° C, 25 ° C (:, 28 ° C, and 30 ° C) to generate fruiting bodies, and the content of erythridine denin in the fruiting bodies.
- the higher the temperature during fruiting body growth the higher the value.At a temperature of 30 ° C, the value was 393 mgZl 00 gDW, and at a temperature of 17 ° C, The content was about twice as high.
- the temperature of the air-conditioning chamber is increased to 17 ° C, 25 ° C, 28 ° C (:, 30 ° C
- the fruiting bodies were grown at a temperature of 32 ° C and a temperature of 35 ° C, and the content of eritadenine in the fruiting bodies was measured.As shown in Table 2, the content increased as the temperature increased, The maximum was reached at the upper limit temperature of 32 ° C for body growth, at which time the content was about 6.2 times that of the fruiting body cultivated at 17 ° C.
- the Shiyuka fruit body obtained by the present invention contains a large amount of erythrodenine, which has a cholesterol-lowering effect, and has very good yield, and is expected to have new demand as a nutritional food and as a health food material. It has excellent effects.
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2001-37020 | 2001-02-14 | ||
JP2001037020A JP2002238350A (ja) | 2001-02-14 | 2001-02-14 | シイタケ子実体、レンチヌラ・エドデス並びにその育種及び栽培方法 |
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WO2002063947A1 true WO2002063947A1 (fr) | 2002-08-22 |
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PCT/JP2002/001031 WO2002063947A1 (fr) | 2001-02-14 | 2002-02-07 | Carporphore de lentinula edodes et procede de selection et de culture correspondants |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2561471C2 (ru) * | 2010-12-16 | 2015-08-27 | Юн Чан КИМ | ШТАММ ГРИБА ШИИТАКЕ Lentinula edodes GNA01 ДЛЯ ПОЛУЧЕНИЯ ПЛОДОВЫХ ТЕЛ |
Families Citing this family (1)
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JP2004242563A (ja) * | 2003-02-13 | 2004-09-02 | Mori Sangyo Kk | 高エリタデニン含有シイタケ子実体およびその生産方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5534062A (en) * | 1978-08-31 | 1980-03-10 | Isamu Hiroe | Plant belonged to *shiitake* new species |
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- 2002-02-07 WO PCT/JP2002/001031 patent/WO2002063947A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5534062A (en) * | 1978-08-31 | 1980-03-10 | Isamu Hiroe | Plant belonged to *shiitake* new species |
Non-Patent Citations (4)
Title |
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EIRO SAITO ET AL.: "Shiitake oyobi sonota shokuyo kinokorui no eratidenine ganryo", EIYO TO SHOKURYO, vol. 28, no. 9, 1975, pages 503 - 505, XP002909331 * |
KINOKO GIJUTSU SHUDANKAI HENSHUU IINKAI ED.: "Kinoko no kiso kagaku to saishin gijutsu", 1 December 1991, NOSON BUNKA K.K., XP002909329 * |
TETSURO TOYOMASU: "Shiitake no kino seibun no hinshukan sai oyobi shigaisen shosha ni yoru vitamin D2 ganryo no kyoka", SHOKUHIN SANGYO CENTER GIJUTSU KENKYU HOKOKU, no. 26, 2000, pages 41 - 45, XP002909328 * |
YASUO AOYAGI ET AL.: "Hoshi shiitake kakushu meigara no eratadenine ganryo ni tsuite", EIYO TO SHOKURYO, vol. 29, no. 8, 1976, pages 460 - 461, XP002909330 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2561471C2 (ru) * | 2010-12-16 | 2015-08-27 | Юн Чан КИМ | ШТАММ ГРИБА ШИИТАКЕ Lentinula edodes GNA01 ДЛЯ ПОЛУЧЕНИЯ ПЛОДОВЫХ ТЕЛ |
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