Development Countermeasures of County-level Edible Fungi Industry in Hebei Province from the Perspective of Rural Revitalization

In recent years,the edible fungi industry in Hebei Province has developed rapidly,with gradually increased cultivation scale and production output,and has become the pillar industry of the province,playing a certain role in promoting the development of rural economy and rural revitalization.Based on the in-depth analysis of the development status,future development direction and current constraints of the edible fungi industry in each typical county of Hebei Province in recent years,the paper puts forward corresponding development countermeasures,which has certain reference value for the county-level edible fungi industry of Hebei Province to promote rural revitalization.

A Recycling Agriculture Model Based on Edible Fungi Cultivation

[Objective]This study was to explore the model for the efficient utilization of agricultural resources,especially crop straw and livestock waste.[Methods]With Shandong Jiufa Edible Fungus Co.,Ltd.as a case,this paper described a recycling agriculture model based on edible fungi,and analyzed its economic,ecological and social benefit [Results]The recycling agriculture model,guided by the scale production,processing and vendition of medium for the culture edible fungi,mainly makes use of a large amount of agriculture wastes like wheat straw,livestock waste,for developing edible fungi industry,aiming at getting the intensive optimization of fund,technology,raw materials and products at village level and more surplus labors engaged in edible fungi production industry into reality.Moreover,this model provides multi-solutions to the utilization of a great deal of fungus dreg,which can not only solve the problem of fungus dreg generated in the edible fungi production,but also extend industrial chain and enhance the income of practitioners,further realizing maximum conversion of agricultural resources.[Conclusion]This model can make well use of agricultural resources and reduce the agricultural waste pollution,significantly increasing economic,ecological and social benefits.

Study on biodegradated ability of thirteen edible fungi to straw

The biodegradated abilities of 13 edible fungi to straw were studied. The results showed that all the experimental fungi except Tricholama mongolicum had definite biodegradated abilities to the lignin and cellulose of straw. The Ideal fungus for straw degradation was screened out as Pleurotus ostreatus, which showed a higher degradation ability for lignin (17.86%) and lower degradation rate for cellulose (2.24%), with a Selection Factor (SF) of 7.97. The degradation rates of lignin and cellulose for other fungi ranged from 2.30% to 16.54% and 5.60% to 17.32%, respectively, and the SF was very low in range of 0.14 to 2.24.The ratio of colony's diameters to the color-zone (d1/d2) and SF are negative correlation, with a correlation coefficient of -0.1476.

Chemical Prevention of Myxomycetes Disease in Edible Fungi

[ Objective ] The paper was to find effective chemical methods to control myxomycetes disease in edible fungi. [ Method] Some low toxic and pollution- free chemical reagents were first selected to carry out indoor toxicity test, and their inhibition effects against myxomyeetes were measured. Then the reagents with small effect on the growth of Pleurotu.s ostreatua were selected according to the indoor bioassay results, and carried out control test against myxomyeetes disease in mushroom house. [ Results] The results showed that the combination of Ludanlan sephora flavescens 1 000 times liquid ＋ salicylic acid 300 times liquid, Clolrim- azole suppositories 1 000 times liquid, Ludanlan sophora flavescens 1 000 times liquid and salicylic acid 300 times liquid had the best control efficacy against the disease. They were the preferred reagents for the prevention of myxomycetes disease in production practice. [ Conclusion] The results provided basis for the effec- tive control d myxomycetes disease in edible fungi.

Determination and Analysis of Heavy Metals Contents in Edible Fungi

[Objective] This study aimed to understand the status of heavy metal contamination in edible fungi, thereby providing some scientific basis for the safety of edible fungi. [Method] The heavy metal contamination status in four kinds of edible fungi, i.e., shitake mushroom, mushroom, agaric and needle mushroom, from Guiyang City and Tongren City, Guizhou Province was evaluated by flame atomic absorption spectrophotometry. [Result] Cu, Mn, Cr and Ni were detected in the four kinds of edible fungi from Guiyang and Tongren; the Cr contents in the four kinds of edible fungi from Guiyang and Tongren all exceeded the national standard, and the Cu contents all met the national standard; The Ni contents in agaric and needle mushroom from Guiyang, and the Ni contents in the four kinds of edible fungi from Tongren, all exceeded the national standard; the enrichment capacity of the four kinds of edible fungi for the four kinds of heavy metal elements ranked as Cu＇s Mn＇s Cr＇s Ni＇s; among the four kinds of edible fungi, mushroom showed the strongest enrichment capacity for the four kinds of heavy metal elements. [Conclusion] The heavy metal contamination in the four kinds of edible fungi was all severe in Guiyang and Tongren, especially in Tongren. There has been currently no national standard for Mn content in edible fungi, which needs to be developed as soon as possible.

Inhibitory activity of polysaccharide extracts from three kinds of edible fungi on proliferation of human hepatoma SMMC-7721 cell and mouse implanted S180 tumor

AIM To determine the activities ofpolysaccharide extracts from Flammulina velutipes (Curt. ex Fr. ) Sing (FV), Lentinusedodes (LE) and Agaricus bisporus Sing (AB)on the proliferation of human hepatoma SMMC-7721 cells in vitro and on mouse implanted S-180tumors in vivo.METHODS The polysaccharide extracts were isolated from the fruit bodies of FV, LE and AB by the methods of hot-water extraction, Sevag’sremoval of proteins, ethanol precipitation,trypsin digestion and ethanol fractionalprecipitation. Human hepatoma SMMC-7721 cells were treated with 50 mg/L Polysaccharide extracts, and the mitosis index, mitochondria activity and cell proliferation were detected at different times in both control and experimental groups. The mice with S-180 implanted tumors were injected with the polysaccharide extracts at 24 mg/ kg body weight for 9 d and the tumorweight was measured on the 15th day.RESULTS The mitosis index of hepatoma cells in vitro could be significantly decreased by treatment with the polysaccharide extracts fromthe three kinds of edible fungi (P < 0 .005 ). Thecell numbers and mitochondria activity of SMMC7721 cells treated with polysaccharide extracts were lower than those in control groups (P <0.005). The inhibition rates of polysaccharide extracts against implanted S-180 tumors in mice were 52.8%, 56.6% and 51 .9% respectivelycompared with that in c0ntrol gr0ups.CONCLUSI0N The POIysaccharide extractsfrom the three kinds of edible fungi could inhibitnot only the Cultured malignant cells in vitfO butalso impIanted Sl80 tum0r i0 vivo.

Healthy function and high valued utilization of edible fungi

Edible fungi are large fungi with high added value that can be utilized as resources.They are rich in high-quality protein,carbohydrate,various vitamins,mineral elements and other nutrients,and are characterized by high protein,low sugar,low fat and low cholesterol.In addition,edible fungi contain a variety of bioactive substances,such as polysaccharides,dietary fiber,steroids,polyphenols,and most of these compounds have antioxidant,anti-tumor and other physiological functions.This review comprehensively discusses the bioactive components and functional characteristics of edible fungi(such as antioxidant,anti-aging,hypolipidemic activities,etc.).Then the recent developments and prospect in the high-valued utilization of edible fungi are discussed and summarized.The objective of this review is to improve the understanding of health-promoting properties of edible fungi,and provide reference for the industrial production of edible fungi-based health products.

Main Species and Medicinal Value of Wild Edible(Medicinal) Fungi in Yunnan Province

Yunnan Province is rich in wild edible( medicinal) fungus resources,where there are about 882 species,96 genera,35 families,11 orders,and 2 classes,and the species of the resources accounts for 40. 7% of the world's resources and 90. 0% of China's resources,so Yunnan is known as " the kingdom of medicinal and edible fungi". Edible fungi contain a variety of functional ingredients,such as polysaccharides,peptide amino acids,nucleosides,triterpenes,minerals,vitamins,etc.,so they have important medicinal value. In order to understand and rationally develop wild edible( medicinal) fungus resources in Yunnan,the main trading species of wild edible( medicinal) fungi in Yunnan Province were investigated,and the biological characteristics and medicinal value of these wild edible( medicinal) fungi were summarized.Moreover,the development prospects of wild edible fungi in Yunnan Province in edible and medicinal fields were discussed.

Advances in Utilization of Agricultural Waste Based on Production of Edible Fungi

Along with the rapid development of edible fungus industry in China,the traditional mode of production giving priority to wood chips will be severely limited,and using agricultural waste distributed widely,having large yield,and containing high content of organic matter to produce edible fungi has good economic and ecological benefit. In this paper,based on the analysis of characteristics of agricultural waste in China,the present situation of application of agricultural waste in the production of edible fungi at home and abroad was introduced,and the main problems existing in production of edible fungi by using agricultural waste in China at the present stage were pointed out. Finally,the development direction of using agricultural waste to cultivate edible fungi was discussed,and some suggestions were put forward,such as improving the theoretical system for using agricultural waste to produce edible fungi,and establishing the standardized technical system for using agricultural waste to produce edible fungi.

Application Status and Prospect of <i>Pinus massoniana</i>Sawdust as the Substrate for the Cultivation of Edible Fungi

In this paper, the research status of using Pinus massoniana sawdust for the cultivation of edible fungi was analyzed and discussed. It was found that Pinus massoniana sawdust contained the material base of edible fungi with sufficient cellulose, hemicellulose and lignin and a small amount of nitrogen, phosphorus, potassium, calcium, magnesium, other mineral salts, and some vitamins for the growth of edible fungi. However, the Pinus massoniana wood contained a significant amount of terpenoids, which are detrimental to the growth of edible fungus and mycelial. The major and current detoxification methods for Pinus massoniana sawdust were analyzed, such as steaming method, distillation method, lime water immersion method, outdoor piling fermentation method, and chemical method. Their advantages and disadvantages were discussed and reviewed. Finally, the major issues in the application of Pinus massoniana sawdust as the cultivation substrate of edible fungi were analyzed, and the application prospect of Pinus massoniana sawdust as the substrate for the cultivation of edible fungi was also reviewed.

Optimal Selection of Raw Material Forest Species for Edible Fungi in Guizhou Province

A comprehensive evaluation system,which focused on optimal selection of raw material forest species for edible fungi,was established by combination of Analytic Hierarchy Process(AHP)and Experts Grading Method(EGM).The evaluation system had 4 indices of grade I and 12 indices of grade II.Among the 12 indices of grade II,the weighted values of production quality of edible fungi P2(0.2874),usable time P7(0.1873),annual average increment P8(0.1873),edible fungi production suitability P1(0.0958)were larger than the values of others.Based on the comprehensive evaluation system,this study analyzed and screened 47 broadleaf species of 40 genera of 25 families.There were 16 broadleaf species having the comprehensive evaluation scores of equal to or greater than2.4000,which were available as major tree species for edible fungi development of Guizhou Province,especially species such as Liriodendron chinense,Quercus acutissima,Alnus cremastogyne,Betula luminfera,Elaeocarpus duclouxii,Elaeocarpus sylvestris,Choerospondias axillaris.The 10 broadleaf tree species with comprehensive evaluation score of 2.1000≤Y 2.4000 were recommended as candidates for edible fungi production,while the 21 broadleaf species with the comprehensive evaluation score of less than 2.1000 were not recommended.

Studies on Growing Edible Fungi on Improved Straw from a Dual Use Rice Cultivar

Every year 500 million tons of rice (Oryza sativa L.) straw are generated worldwide, which was almost equal to the production of rice grain. Most straw is not recovered due to the poor quality, high cost or complicated treatment operations. Through genetic improvements, a rice cultivar '201' was developed with both high nutrient content in straw and high grain yield. The results of 15N tracer experiments showed thatls N of urea could be effectively transformed into straw protein of ' 201' and the recovery rate of 15N in the straw of '201' was 104% higher than that of the check 'TY 63'. The straw protein of '201' could be effectively transformed into mushroom protein and the recovery rate of 15N was 21.7% higher than that of 'TY 63'. Using the straw of ' 201' as material to cultivate straw-based edible fungi, improved the yield and protein content of mushrooms. A total of 7.5 mg·ha-1straw of '201' increased the yield and crude protein of the edible mushroom Volvariella volvacea 797 kg yield and 67.9 kg respectively, and increased the yield and crude protein of the edible mushroom Agaricus blazei Murrill 675 kg and 80 kg respectively. The straw powder of '201' could be used to substitute for the same weight of wheat bran to cultivate lignicolous edible fungi, with no significant difference in terms of mushroom yield or the crude protein content. Straw powder could substitute for 20% of total amount of material to grow Auricularia polytricha, Auricularia auricula, Hypsizygus tessulatus, Lentinula edodes and Hericium erinaceus, 8% of that to grow Agrocybe cylindracea and 7.5% of that to grow Flammulina velutipes respectively.

MUTAGENICITY OF SUPERIOR FUNGI EXTRACTS OF EDIBLE CHINESE SAUERKRAUT IN SHENYANG

The mutagenicity of the superior fungi-Aspergillus flavus Link and Aspergillusfumigatus Fresenius extracts derived frommaceration of edible chinese

Analysis and Discussion on Some Problems of the Edible Fungi Production in Asmara Area

According to the natural and economic conditions and the current condi-tions of edible fungi production of Asmara area, the essay analyzed the advantages and difficulties of edible fungi industry and discussed the countermeasures to devel-op edible fungi industry in Asmara area in several ways, including training profes-sionals, determining dominant varieties, researching cultivation technology and se-lecting proper extending orientation.

Effects ofγIrradiation on Microorganisms in Edible Fungi Matrix

The microbial quantity and community of edible fungi substrate were studied.The results showed that the total number of colonies and molds in the substrate decreased significantly afterγirradiation.γirradiation had obvious effects on relative abundance of bacteria OTU at species level.The OTU abundances of Escherichia-Shigella,Uncultured bacterium(Lactococcus),Uncultured organism significantly increased after the irradiation,whereas the remaining bacteria OTU decreased at species level.γirradiation had no obvious effects on relative abundance of Escherichia-Shigella at genus level and also had no obvious effects on relative abundance of bacteria at gate level,Proteobacteria and Firmicutes were always the dominant flora.Irradiation had little effects on the flora structure of fungi in the substrate.In terms of genus level,Fusatium,unclassified,Candida and Aspergillus were always the dominant flora before and after irradiation.In terms of phylum level,Ascomycota was the dominant flora.

Three Major Effects and Guarantee System for Quality Management of Edible Mushroom Products

In order to provide consumers with more safe and edible fungus products and to create a faithful social environment of food quality, the edible fungus products quality safety events, as well as their evoked factors and effects on edible fungus industry were discussed in depth in this paper. The performance of edible fungus products quality management is a comprehensive reflection of technical effect, control effect and implementation effect. Among them, the implementation effect is the most important, which refers to the actual implementation effect of quality and safety rules by practitioners of edible fungus industry. Thus, the initiative implementation effect in quality management will be improved, and a quality assurance system in which practitioners are volunteered to participate and implement initiatively the quality standards and regulations so as to provide safe and high-quality products will be established, thereby achieving the best actual implementation effect in quality management.

Prospects for Development of Edible and Medicinal Mycorrhizal Fungus in Shanxi Province

This paper first elaborated basic characteristics and research development of the edible mycorrhizal fungus. Then,it analyzed the natural ecological environment and development conditions of edible fungus in Shanxi Province. Finally,it discussed edible mycorrhizal fungus resources in Shanxi Province and development and utilization prospects of edible mycorrhizal fungi,to provide some references for the development of edible fungi industry and edible and medicinal mycorrhizal fungus in Shanxi Province and adjacent provinces.

A Method for Measuring the Degree of Fermentation of the Edible Mushroom Cultivation Substrate

In the study, eight treated substrates were designed to explore the possibility to determine the degree of fermentation of the substrate by the mycelial growth rate, whose main raw material includes?composted pine sawdust, oil tea shell and hickory shell respectively, and auxiliary materials contain rice bran, soybean powder, etc. The result showed that the shiitake mushroom grew well in 7 treatments whose mycelial growth rate could be measured on 3rd?days when the mycelial growth rates of P1, C1 and H1 were 5.0 mm/d, 9.66 m/s, 13.33?m/s.?Auricularia cornea?var.?Li exhibited the fastest growth on P1 substrate. And mycelial growth rates of P1, P0 and CK1 were 5.8 mm/d,?3.66?mm/d,?and?4.66 mm/d on 3rd?day, respectively. The growth rates?of?Pleurotusgeesteranus?of C1, CK2 and P0 were 9.0 mm/d,?11.66 mm/d,?and?4.00 mm/d on 3rd?day, respectively. So the degree of fermentation of the substrate could be determined within 3 days according to the mycelial growth rate. As the growth of edible fungi?is?affected by degree of fermentation of the substrate and there is little literature on degree of fermentation of edible fungi substrate, the study will provide theoretical and technical basis for determination of substrate fermentation.