International journal of medicinal mushrooms最新文献

Alzheimer's disease (AD) is a prevalent neurodegenerative disorder that gradually destroys cognitive, memory, and thinking skills. Although increasing evidence has demonstrated that Ganoderma lucidum triterpenoids (GLT) can ameliorate the motor and spatial learning disorders of AD, the underlying mechanism remains unclear. Hence, in this study, GLT were obtained by using a traditional Chinese medicine processing method, and then the effects of GLT on motor and spatial learning disorders in 5xFAD mice were investigated by using various techniques such as behavioral analysis, micro-dialysis, and neurophysiological recording. Compared with the 5xFAD group, 0.5 g/kg GLT could decrease escape latency, the total number of limb errors, and the duration of errors. This dose could also increase the number of crossing the original platform, the total movement time, and the distance in the central region of the open-field box, as well as the maximum movement speed and continuous movement time on the rotating rod. After GLT treatment, the glutamate (Glu) content and variation coefficient of a simple spike of Purkinje cells decreased compared with the 5xFAD group, thereby improving the spatial learning and memory ability. Overall, this study shows that GLT may be a potential therapeutic method for patients with AD.

Cordycepin, known for its tumor-suppressive and antiviral properties, has garnered attention due to its therapeutic and biological potential. Current Cordyceps militaris - based cordycepin production methods involve time-consuming and cost-intensive solid-state fermentation. Using an internet of things (IoT) architecture, we developed an active air-feed regulation fermentation system (AAFRFS) to detect CO2 emitted during C. militaris submerged fermentation. Equipped with a microcontroller unit and proportional-integral-derivative plus pulse-width modulation technology, the AAFRFS also regulates the air supply, inducing hypoxic stress to enhance cordycepin production. Our system uploads all fermentation data to a cloud database. After 14 d of fermentation (volume 5 L) at 3000 ppm metabolic CO2, cordycepin levels exceeded 1.44 g/L (yield: 103.2 mg/L/d). Hypoxic stress promoted earlier cordycepin production. Utilizing big data with an alert mechanism enabled the early detection of microbial contamination within a 12- to 24-h period. Principal component analysis revealed a positive correlation between temperature and CO2 concentration, suggesting that temperature fluctuations likely affect the respiration rate of C. militaris, thereby altering CO2 levels. Our findings may help optimize fermentation strategies not only for C. militaris but also for other fungal strains.

The present study was aimed at evaluating the nutritional characteristics of bio-enriched oyster mushrooms. Cereal, leguminous and oilseed waste was used as substrates. Rice, soybean and mustard straw performed the best among all substrate fortified by adding Se and Zn salts individually and in combination at three different doses (25, 50 and 75 mg/kg) for nutrient analysis. The results showed that highest carbohydrate, 54.01 percent and protein content, 29.41 percent after fortification with Se and Zn at 75 mg/kg as compared to other doses on different substrates. Se at 75 mg/kg gave maximum carbohydrate (60.29%) and protein content (32.32%) in soybean straw while Zn supplementation at 50 mg/kg resulted in high fat content (2.74%) while rice straw had maximum fiber content (18.12%). Based on maximum yield, best dose of both the salts (25 mg/ kg of substrate) were combined and evaluated. The results indicated that soybean straw had the highest nutrient contents having 55.00 percent carbohydrate and 27.72 percent protein content. It was concluded that fortification with selenium and zinc increased the nutritional composition of Pleurotus ostreatus in comparison to control.

Mushrooms are the healthiest, safest, most nutritious foods and are vital to human well-being. In historical contexts, religious teachings influenced the treatment of diseases, with ethnomycological knowledge suggesting that mushrooms held divine clues due to their unique appearances. The use of mushrooms was often linked to the "doctrine of signatures," where their morphological resemblance to human organs, such as the ear, kidney, and lungs, prompted researchers to theorize that products derived from mushrooms might be effective in treating health concerns. A wide variety of edible and wild mushrooms are now recognized for their bioactive compounds, which are valuable in biopharmaceuticals and dietary supplements. The compounds exhibit a range of therapeutic properties, encompassing immune enhancement, antioxidant effects, anti-inflammatory actions, antiviral capabilities, and anti-neoplastic activities. Modern science has corroborated many of these traditional insights, revealing mushrooms as sources of bioactive compounds with therapeutic potential. The intertwined filamentous mycelium of mushrooms is also attracting interest for its biocomposite uses in sustainable and environmentally friendly businesses. Biocomposite materials suitable for construction and building applications can be produced by creating a mycelial matrix or a self-forming adhesive using non-food fungal mycelia flour. This review explores the ethnomycological background, therapeutic potential, and innovative uses of mushroom mycelium in biocomposites, highlighting their role in health, wellness, and sustainable development.

Mushrooms are widely recognized for their rich nutritional profile and diverse array of bioactive compounds, including proteins, polysaccharides, and secondary metabolites, which contribute to various health benefits. Among these compounds, phospholipids stand out due to their essential role in cellular processes and their potential applications in food, nutraceuticals, and pharmaceuticals. This review comprehensively examines the phospholipid composition in mushrooms, highlighting the methods of analysis, and delving into their functional applications. By comparing lipid profiles across different stages of growth and between various species, this review highlights the significant role of phospholipids in mushroom cellular structure and function. The review also discusses the biosynthetic pathways and extraction methods employed for this class of compounds. By shedding light on this underexplored aspect of mushroom chemistry, this work aims to spur further research and innovation in the utilization of mushrooms in food science and medicine.

Tricholomopsis aurea is used as food in different parts of the world, but has not been investigated for its nutrients, metabolites, and biological potentials like other edible mushrooms. This work aimed to quantify the metabolic and nutrient content of T. aurea and evaluate the antioxidant and anti-inflammatory activities of the extract and isolated compounds. The method employed involves chromatographic, spectroscopic, bovine serum albumin microplate, analytical and standard assays. Oleic, elaidic, petroselinic acids, ergosterol, ergosterol peroxide, 22E724R)-24-ethylcholesta-5,7,22-trien-3β-ol, and adenosine were isolated and identified using 1D and 2D-NMR spectroscopy and spectrometric data. The metabolic content revealed high phenolics (799.62 μgGaE/g of dry matter (DM)), low flavonoids (24.54 μgQE/g DM), alkaloids (32.92 μgQiE/g DM), and saponins (88.00 μgQSE/g DM). The nutrients content was made up of proteins (4.79%), lipids (10.43%), fibers (16.01%), ashes (15.96%), carbohydrates (8.74%), dry matter (85.93%), and moisture (14.07%) with energy value of 362.89 kcal. In mg/100 g, the minerals were phosphorus (283.97%), calcium (817.25%), potassium (67.10%), magnesium (94.42%), iron (57.27%), and sodium (74.4%). The extract displayed the antioxidant activity against TAC and FRAP (100-1000 μg/mL), DPPH (SC50 of 248.95 μg/mL) and ABTS (SC50 of 180.7 μg/mL), while the test compounds were not active. The extract, adenosine, ergosterol peroxide, and ergosterol showed anti-inflammatory activity with IC50 of 49.19 μg/mL, 4.91 μg/mL, 6.85 μg/mL, and 29.51 μg/mL, respectively. Conclusively, this study will help to promote the application of T. aurea in traditional dishes and functional or nutraceutical foods.

Physiological studies were performed to investigate the optimal mycelial growth parameters for Ganoderma resinaceum EGM (AC: LN774970) and G. mbrekobenum EGDA (previously identified as Ganoderma sp. EGDA, AC: LN774971). The study found that the highest growth of mycelia was at 11 d for Ganoderma species. The nutritional studies were carried out to know the best growth conditions including temperature, culture media, pH, carbon source, and nitrogen source. The most appropriate temperature for the highest growth for Ganoderma species was at 30°C; this benefit enables the cultivation of these species in the spring. The most favorable media for their growth was potato dextrose broth as semi-synthetic followed by Saburaoud broth as synthetic media. They also could grow at pH ranges from 3.0-9.0, with the highest mycelial growth at pH 5.0. This study confirmed that both Ganoderma species prefer glucose as a carbon source and peptone as an organic nitrogen source. Decolorization of poly R associated with peptone was 21.37% and 18.66% for both EGM and EGDA strains, respectively. The highest cellulase production was achieved after 11 d of incubation with activity reached 0.305 μmole/mL/min and 0.236 μmole/mL/min for G. mbrekobenum EGDA and G. resinaceum EGM, respectively. The highest laccase activity was obtained after 8, 12 d of incubation with a value of 5.53 μmole/mL/min and 31.32 μmole/mL/min, for EGM and EGDA strains, respectively. Moreover, the highest peroxidase activity for both EGM and EGDA strains was recorded after 26 and 20 d of incubation with a value of 0.333 μmole/mL/min and 0.230 μmole/mL/min, respectively. G. mbrekobenum EGDA possessed higher flavonoids and phenolic compounds (4.098 mg/g and 6.298 mg/g dry weight, respectively) than G. resinaceum EGM (1.137 mg/g and 2.420 mg/g dry weight, respectively).

Ganoderma resinaceum is a traditional mushroom that contains natural products, including ergothioneine (EGT), which has powerful antioxidant properties in the human body. To increase EGT yield from G. resinaceum, the optimal carbon and nitrogen sources in the culture medium were determined as 20 g/L sucrose and 4 g/L NH4Cl, respectively. The fermentation conditions were then optimized using response surface methodology, with the highest EGT yield of approximately 4.10 mg/L achieved at an initial pH of 5.19, a culture medium volume of 118 mL, and a fermentation temperature of 26.90°C. After extraction, EGT was purified using Sephadex G-10, resulting in a purity of 43.72%. Both the crude and purified EGT extracts were evaluated for their inhibitory activity against xanthine oxidase in vitro, with positive results. These findings suggest the potential for developing edible fungi-derived medicines to treat gout, which could alleviate the side effects of traditional medicines.

Male offspring of rats whose mothers consumed sucrose (5% solution) during gestation and lactation were also given the sucrose solution instead of drinking water for 3 months, and subsequently, for 1 month, they were given an aqueous extract obtained from dehydrated fruiting bodies of Pleurotus ostreatus. The offspring that consumed sucrose (experimental group) did not show differences in body weight compared with those that did not consume sucrose (control group), however, total adiposity was higher in the experimental group. In rats that consumed the aqueous extract, a decrease in the amount of cholesterol and triglycerides in blood plasma was observed, total adiposity also decreased and the average size of adipocytes in the visceral area was reduced. Consumption of the aqueous extract of P. ostreatus showed an antihyperlipidemic effect when triglyceride, cholesterol and adipose tissue levels were increased by the consumption of sucrose in rats descended from mothers who also consumed sucrose.

RVP, a water-soluble triple-helix galactoglucomannan, was successfully extracted from the fruiting body of Russula virescens using an alkali extraction method. Physicochemical properties analysis showed that the protein content of RVP was low (0.95%). The main chain was mainly composed of 1,3,6-linked D-mannose and 1,6-linked glucose residues, and contained terminal glucose units and a small amount of 1,4-linked glucose and 1,6-linked galactose. The average molecular weight of RVP is approximately 8.91 ȕ 105, and it adopts a semi-rigid triple helix conformation. The antioxidant potential of RVP was initially assessed in vitro using H2O2 to induce oxidative stress in a cellular model, leading to cell damage and decreased survival rates. In comparison to the H2O2 model group, RVP exhibited substantial antioxidant activity, demonstrating a capacity to enhance cell viability in a concentration-dependent manner and notably reduce the level of malondialdehyde (MDA) in the cell supernatant, thus indicating its effectiveness in reducing lipid peroxidation. Furthermore, RVP was found to boost the activity of crucial antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) in the cells. Thus, RVP with antioxidant properties has broad application prospects in health and wellness.