JPS59173019A - Culturing of basidiomycetous - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for cultivating basidiomycetes in a medium containing aurigenin sulfonates, and is aimed at improving the quality of fruiting bodies as food.

Demand for mushrooms has increased rapidly in recent years, and mushrooms are attracting attention not only as food but also as containing medicinal ingredients.

The cultivation of mushrooms using sawdust is widely practiced.
Although it is advantageous for mass production, because the focus is on promoting growth, the mushrooms obtained lack the flavor and aroma of naturally produced mushrooms.
There are also problems in terms of hue and hardness.

The present invention focuses on the function of basidiomycetes as wood-destroying fungi, and cultivates high-quality edible mushrooms by providing conditions as close to natural processes as possible. It was successful in doing so.

Traditionally, it was thought that the growth of basidiomycetes was achieved by the fungus first decomposing the lignin in the wood and wood flour in the medium, and then decomposing and assimilating cellulose and hemicellulose, but in recent years, the growth of basidiomycetes has been reversed. First, cellulose.

It is thought that cells grow by decomposing hemicellulose and forming extracellular enzymes, which then decompose lignin as well.

The process in which hyphae form fruiting bodies from mycelium is a stepwise process, and the necessary nutrients must be supplied according to the degree of growth at each stage.

In the initial stage, it is important to supply sugar and minerals while responding to the decomposition of sugars, but in the next stage, it is even more important to respond to the decomposition of lignin and promote its decomposition.

Therefore, by adding a lignin component to the culture medium in advance, the extracellular enzymes can be increased and the ability to decompose lignin in wood and sawdust can be fully enhanced.

By doing this, the decomposition of lignin is promoted, and the growth of the cultivated mushroom fruiting bodies is closer to the natural process than when only carbohydrates are supplied, resulting in high-quality mushrooms being harvested. be done.

Mushrooms that are the object of the present invention include Shiitake mushrooms, Nameko mushrooms, Enoki mushrooms, Oyster mushrooms, Shimeji mushrooms, Pine mushrooms, Perennial mushrooms, and Reed mushrooms, which are basidiomycetes.

The lignin component to be added is lignin sulfonate derived from the pulp wastewater during sulfide pulp production.Lignin has a lower molecular weight than that in raw wood through pulping and is sulfonated, so it has good dispersibility and It has surfactant ability, is hydrophilic, is easily compatible with the culture medium, and has the function of promoting enzyme production.

The effects of improving the quality of fruiting bodies include changes in color (increasing blackness), increased firmness, longer shelf life, increased disease resistance during production, and improved eating taste including flavor.

Examples will be described below, but the present invention is not limited thereto.

The urigenin sulfonate added in this example is:
Neutralize the cooking waste liquid from the production of SP for viscose with quicklime,
The sludge is concentrated and solidified after removing gold.

Example 1 [Example of culturing black reed mushrooms] conditions Container bottle: 1 in 2.5 capacity, 10 bottles each.

Sterilization: 1.2Ky steam, 120℃, 120 minutes.

Medium: Sawdust 10. Rice bran 0.7. Bran 0.5° Calcium ligninsulfonate salt 0-7%/medium Soil Boundary: N016-5 is optimal in terms of color and firmness.

Example 2 [Culture example of shimeji] Conditions Container bottle: Capacity 800 CC (50 y, number of each 50
Book.

Sterilization: 1.2, y steam, 120°C, 120 minutes.

Cultivation ground: Sawdust (coniferous), 10% rice cake.

10 pieces of wheat bran, lignin sulfonic acid calcium salt O~5
Boundary: When the amount of addition was increased, the hue became darker and the hardness increased completely.

Example 3 [Example of culturing Hiratake mushrooms] conditions Container pin: Capacity 800 CCI number 50 each.

Sterilization: 1.2 Ky -120°C, 120 minutes.

Culture medium: 7 parts coniferous sawdust, 3 parts waste sawdust, 1 part wood spirit.
Bran 1° Calcium lignin sulfonate salt 0 to 5% Environment; Results The hue and hardness varied depending on the amount added.

Claims (1)

[Scope of Claims] 1. A method for cultivating basidiomycetes, which comprises adding lignin sulfonates to a basidiomycete culture medium. 2. The method for cultivating a basidiomycete according to claim 1, wherein the basidiomycete is a shiitake mushroom. 6. The method for cultivating basidiomycetes according to claim 1, wherein the basidiomycetes are nameko mushrooms. 4. The method for cultivating basidiomycetes according to claim 1, wherein the basidiomycetes are Enoki mushrooms. 5. The method for cultivating a basidiomycete according to claim 1, wherein the basidiomycete is Hiratake. 6. The method for cultivating a basidiomycete according to claim 1, wherein the basidiomycete is a shimeji mushroom. 7 Claim 1 in which the basidiomycete is pine mushroom
Cultivation method of Basidiomycetes as described in Section. 8. The method for cultivating a basidiomycete according to claim 1, wherein the basidiomycete is a perennial mushroom. 9. The method for cultivating basidiomycetes according to claim 1, wherein the number of basidiomycetes is one.