Shiitake collagen cultivation medium capable of slowing down heavy metal accumulation

Abstract

The invention discloses a shiitake collagen cultivation medium capable of slowing down heavy metal accumulation. The shiitake collagen cultivation medium is prepared from, by weight, 3-4 parts of limestone powder, 4-5 parts of calcium carbonate, 35-38 parts of cotton seed hull, 26-29 parts of tapioca residue, 1.6-1.8 parts of propylene glycol alginate, 1-2 parts of cobaltous chloride, 4-6 parts of potassium sulfate, 3-5 parts of dolomite calcium powder, 40-44 parts of pig shin waste, 1-2 parts of sodium chloride powder and proper amounts of pH2.5 acetic solution, sodium hydroxide solution and water. By adding the limestone powder and calcium carbonate, massive calcium ions therein change electric potential of heavy metal in the medium and compete for absorption by shiitake, stability of PH value in the medium is regulated, and difficulty of heavy metal elements in entering hypha cells is increased, so that heavy metal accumulation in shiitake is slowed down, and damage to human health caused by the fact that heavy metal enters human bodies through intake of shiitake is avoided.

Description

technical field [0001] The invention relates to the technical field of edible fungus cultivation, in particular to a shiitake mushroom collagen cultivation substrate that slows down the accumulation of heavy metals. Background technique [0002] Lentinus edodes, commonly known as Chinese mushroom, is a well-known edible medicinal material for cultivating fungi. It has a long history and tradition of cultivation in my country. It is deeply loved by consumers because of its rich nutritional value and medicinal value. It has become the second largest in the world. For the artificially cultivated edible fungi, due to the rapid development of the industry, the raw materials of the traditional substrate for shiitake mushroom substitute cultivation are increasingly exhausted, and it is necessary to actively explore ways to replace the substrate. On the other hand, along with the raising of people's living standard, people hope that the nutritional value and medical value of shiitake...

AI Technical Summary

Problems solved by technology

[0006] The invention patent application with the publication number 102617213A discloses a method of using compressed straw to prepare a mushroom cultivation substrate. The cultivation substrate uses 25-35% coarse wood chips, 15-25% fine wood chips, and It is prepared by mixing soaked compressed straw particles, 10-15% bran, and 1.0-1.5% gypsum. The culture substrate of the invention has a high lignin content, which is conducive to the utilization of shiitake mushroom hyphae, and agricultural production waste is used as cultivation Substrate raw materials improve the environment and save costs, but the cultivation substrate disclosed in the invention uses too single raw materials, which easily causes nutrient imbalance and requires the addition of additional nutrients. At the same time, the biocompatibility with shiitake mushrooms is not high. The improvement of the microenvironment and the expansion of mycelium have no promotion effect, and there is no significant increase in added value, which limits the large-scale application of the invented substrate