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oyster mushroom

Zenebe Girmay, Weldesemayat Gorems, Getachew Birhanu, Solomon Zewdie
Mushroom cultivation is reported as an economically viable bio-technology process for conversion of various lignocellulosic wastes. Given the lack of technology know-how on the cultivation of mushroom, this study was conducted in Wondo Genet College of Forestry and Natural Resource, with the aim to assess the suitability of selected substrates (agricultural and/or forest wastes) for oyster mushroom cultivation. Accordingly, four substrates (cotton seed, paper waste, wheat straw, and sawdust) were tested for their efficacy in oyster mushroom production...
December 2016: AMB Express
Fabrício Rocha Vieira, Meire Cristina Nogueira de Andrade
In recent years, oyster mushroom (Pleurotus ostreatus) has become one of the most cultivated mushrooms in the world, mainly in Brazil. Among many factors involved in a mushroom production, substrate preparation is the most critical step, which can be influenced by composting management techniques. Looking forward to optimizing the substrate preparation process, were tested different composting conditions (7 and 14 days of composting with or without conditioning), potential raw materials (decumbens grass, brizantha grass and sugarcane straw) and nitrogen supplementation (with or without wheat bran) on oyster mushroom yield and biological efficiency (BE)...
November 2016: World Journal of Microbiology & Biotechnology
Gabriel Llauradó, Humberto J Morris, Yamila Lebeque, Gleymis Venet, Onel Fong, Jane Marcos, Roberto Fontaine, Paul Cos, Rosa C Bermúdez
Mushroom nutriceutical components have lately attracted interest for developing immunonutritional support. However, there is relatively little information pertaining to the use of mushroom preparations for modulating the metabolic and immunological disorders associated to malnutrition. This study was aimed to evaluate the effects of oral administration of an aqueous extract (CW-P) from Pleurotus ostreatus on the recovery of biochemical and immunological functions of malnourished mice. 8-week old female BALB/c mice were starved for 3days and then refed with commercial diet supplemented with or without CW-P (100mg/kg) for 8days...
September 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Ken-Ichiro Minato, Lisa C Laan, Akihiro Ohara, Irma van Die
Many edible mushrooms have become attractive as "health foods" and as source materials for immunomodulators. To increase our insight in the immune-modulatory properties of a polysaccharide of the oyster mushroom Pleurotus citrinopileatus, PCPS, we analyzed its effects on the function of human dendritic cells (DCs). We showed that PCPS induces upregulation of the surface maturation markers CD80, CD86 and HLA-DR on DCs, indicating its potential to induce DC maturation. In addition, PCPS stimulates DCs to secrete the pro-inflammatory cytokines TNF, IL-1β, IL-6 and IL-12, as well as the anti-inflammatory cytokine IL-10, and induces enhanced mRNA levels of the chemokines CCL2, CCL3, CCL8, CXCL9, CXCL10, and LTA...
September 1, 2016: International Immunopharmacology
Takehito Nakazawa, Masami Tsuzuki, Toshikazu Irie, Masahiro Sakamoto, Yoichi Honda
Of all of the natural polymers, lignin, an aromatic heteropolymer in plant secondary cell walls, is the most resistant to biological degradation. White-rot fungi are the only known organisms that can depolymerize or modify wood lignin. Investigating the mechanisms underlying lignin biodegradation by white-rot fungi would contribute to the ecofriendly utilization of woody biomass as renewable resources in the future. Efficient gene disruption, which is generally very challenging in the white-rot fungi, was established in Pleurotus ostreatus (the oyster mushroom)...
September 2016: Fungal Biology
Min-Jae Kang, Keun Ki Kim, Byoung Yil Son, Soo-Wan Nam, Pyung-Gyun Shin, Gun-Do Kim
Adipogenesis is one of cellular processes and highly controlled program. Nowadays, inhibition of adipogenesis has received attention for effective way to regulate obesity. In current study, we investigated the inhibition effect of chloroform extract of Pleurotus eryngii var. ferulae 'Beesan No. 2' (CEBT) on adipogenesis in 3T3-L1 murine preadipocytes. Pleurotus eryngii var. ferulae is one of many varieties of King oyster mushroom and has been reported that it has various biological activities, including anti-tumor and anti-inflammation...
July 27, 2016: Journal of Microbiology and Biotechnology
Julita Reguła, Zbigniew Krejpcio, Halina Staniek
INTRODUCTION AND OBJECTIVE: Oyster mushroom Pleurotus ostreatus is good source of iron. However, there is a limited data concerning bioavailability of iron from oyster mushroom and also cereal products containing this mushroom. The aim of this study was to assess bioavailability of iron from products with an addition of Pleurotus ostreatus in male rats with anaemia. MATERIAL AND METHODS: Investigations were conducted in two stages. In the first stage iron deficiency was developed in rats...
June 2, 2016: Annals of Agricultural and Environmental Medicine: AAEM
Mohamad Hamdi Zainal Abidin, Noorlidah Abdullah, Nurhayati Zainal Abidin
This study evaluated the in vitro antioxidant capacities of extracts from Pleurotus pulmonarius via Folin-Ciocalteu, 1,1-diphenyl-2-picrylhydrazyl free radical scavenging, metal chelating, cupric ion reducing antioxidant capacity, and lipid peroxidation inhibition assays. Extract compositions were determined by phenol-sulfuric acid; Coomassie Plus (Bradford) protein; Spectroquant zinc, copper, and manganese test assays; and liquid chromatography-tandem mass spectrometry (LC/MS/MS) and gas chromatography-mass spectrometry (GC/MS)...
2016: International Journal of Medicinal Mushrooms
Ilya Galperin, Aysha Javeed, Hanno Luig, Günter Lochnit, Martin Rühl
Aryl-alcohol oxidases (AAOs) are enzymes supporting the degradation of lignin by fungal derived class II peroxidases produced by white-rot fungi. AAOs are able to generate H2O2 as a by-product via oxidation of an aryl-alcohol into its correspondent aldehyde. In this study, an AAO was heterologously expressed in a basidiomycete host for the first time. The gene for an AAO of the white-rot fungus Pleurotus sapidus, a close relative to the oyster mushroom Pleurotus ostreatus, was cloned into an expression vector and put under control of the promotor of the glyceraldehyde-3-phosphate dehydrogenase gene 2 (gpdII) of the button mushroom Agaricus bisporus...
September 2016: Applied Microbiology and Biotechnology
Noritaka Nakamichi, Keigo Nakayama, Takahiro Ishimoto, Yusuke Masuo, Tomohiko Wakayama, Hirotaka Sekiguchi, Keita Sutoh, Koji Usumi, Shoichi Iseki, Yukio Kato
BACKGROUND: Clinically used antidepressants suffer from various side effects. Therefore, we searched for a safe antidepressant with minimal side effects among food ingredients that are distributed to the brain. Here, we focused on ERGO (ergothioneine), which is a hydrophilic antioxidant and contained at high levels in edible golden oyster mushrooms. ERGO is a typical substrate of carnitine/organic cation transporter OCTN1/SLC22A4, which is expressed in the brain and neuronal stem cells, although little is known about its permeation through the BBB (blood-brain barrier) or its neurological activity...
June 2016: Brain and Behavior
Seneida Lopera-Cardona, Cecilia Gallardo, Jairo Umaña-Gallego, Lina María Gil
The physicochemical, compositional and functional properties of flour from green plantains (Musa acuminata) of the large green plantain variety, oyster mushrooms (Pleorotus ostreatus), pineapple peel (Ananas comosus) of the 'apple pineapple' variety, yellow peas (Pisum sativum), chickpeas (Cicer arietinum), whole grain rice (Oryza sativa), whole grain corn (Zea mays) and whole grain white quinoa(Chenopodium quinoa) were evaluated by using one-way analysis of variance, Pearson correlations and principal component analysis chemical composition of the eight flours, statistically differed (p < 0...
April 18, 2016: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
Ha Thi Hoa, Chun-Li Wang, Chong-Ho Wang
The study was conducted to compare the effects of different agro-wastes on the growth, yield, and nutritional composition of oyster mushrooms Pleurotus ostreatus (PO) and Pleurotus cystidiosus (PC). Seven substrate formulas including sawdust (SD), corncob (CC), sugarcane bagasse (SB) alone and in combination of 80 : 20, 50 : 50 ratio between SD and CC, SD and SB were investigated. The results indicated that different substrate formulas gave a significant difference in total colonization period, characteristics of fruiting bodies, yield, biological efficiency (BE), nutritional composition and mineral contents of two oyster mushrooms PO and PC...
December 2015: Mycobiology
Aneta Sławińska, Emilia Fornal, Wojciech Radzki, Katarzyna Skrzypczak, Marta Zalewska-Korona, Monika Michalak-Majewska, Ewa Parfieniuk, Anna Stachniuk
The main objective of this work was to determine the stability of vitamin D2 in dried mushrooms Agaricus bisporus, Pleurotus ostreatus and Lentinula edodes during storage, as well as to examine the possibility of inducing vitamin D2 production in dried mushrooms by UVB irradiation. After 1.5 year storage of dried mushrooms, the level of vitamin D2 in button mushrooms was found to be 6.90 μg/g dw, which is a 48.32% of initial level of vitamin D2. In the case of dried oyster and shiitake mushrooms there was a decrease to the level of 66...
May 15, 2016: Food Chemistry
Sze Han Ng, Mohd Shazwan Mohd Zain, Fatariah Zakaria, Wan Rosli Wan Ishak, Wan Amir Nizam Wan Ahmad
INTRODUCTION: Pleurotus sajor-caju (PSC) is an edible oyster mushroom featuring high nutritional values and pharmacological properties. Objective. To investigate the hypoglycemic and antidiabetic effects of single and repeated oral administration of PSC aqueous extract in normal and diabetic rats. MATERIALS AND METHODS: A single dose of 500, 750, or 1000 mg/kg of the PSC extract was given to experimental rats to determine the effects on blood glucose (BG) and oral glucose tolerance test (OGTT)...
2015: BioMed Research International
Renáta Bánfi, Zsuzsanna Pohner, József Kovács, Szabina Luzics, Adrienn Nagy, Melinda Dudás, Péter Tanos, Károly Márialigeti, Balázs Vajna
Oyster mushroom (Pleurotus ostreatus) lignocellulolytic enzyme activity pattern and variation was investigated in a large-scale facility from spawning until the end of the second flush. In the first cultivation cycle laccase production reached its peak during vegetative growth stage, while manganese-peroxidase showed the highest activity during fruiting body induction. Cellulose and hemicellulose degrading enzymes had maximal activity at the beginning of flush and harvest stage. The enzyme activities showed similar tendencies among five different mushroom substrate blocks representing a production house...
December 2015: Fungal Biology
Shin-Yi Lin, Shih-Chang Chien, Sheng-Yang Wang, Jeng-Leun Mau
The optimization of submerged culture of the culinary-medicinal golden oyster mushroom, Pleurotus citrinopileatus, was studied using a one-factor-at-a-time, two-stage stimulation and central composite rotatable design to produce mycelia with high ergothioneine content. The optimal culture conditions for mycelia harvested at day 22 were a temperature of 25°C, an inoculation ratio of 5%, 2% glucose, 0.5% yeast extract, and adjustment of the initial pH value to 10. The biomass and ergothioneine content were 8...
2015: International Journal of Medicinal Mushrooms
Heli Sirén
Organic acids are used for starting compounds in material sciences and in biorefinery, food, fuel, pharmaceutical, and medical industry. Here, we provide the data from a biochemical approach made to investigate production of organic acids and isolation of metals from wood, which is the most abundant biomass. Spruce and bark, phloem, and heartwood from pine were fermented with either microbes of oyster mushroom (Pleurotus ostreatus), baker's yeast, or lactic acid bacteria to improve selective fermentation. Using capillary electrophoresis and liquid chromatography techniques, we identified 14 different organic acids and phenolic acids with good yields...
December 2015: Data in Brief
Krishnamoorthy Akkanna Subbiah, Venkatesh Balan
A compressive description of tropical milky white mushroom (Calocybe indica P&C var. APK2) is provided in this review. This mushroom variety was first identified in the eastern Indian state of West Bengal and can be cultivated on a wide variety of substrates, at a high temperature range (30~38℃). However, no commercial cultivation was made until 1998. Krishnamoorthy 1997 rediscovered the fungus from Tamil Nadu, India and standardized the commercial production techniques for the first time in the world. This edible mushroom has a long shelf life (5~7 days) compared to other commercially available counterparts...
September 2015: Mycobiology
Ahmed M Younis, Fang-Sheng Wu, Hussien H El Shikh
Pleurotus ostreatus is an edible mushroom that also has high medicinal values. In this study, P. ostreatus was tested for its ability to inhibit the growth of fungi and bacteria. The freeze-dried fruiting body, broth from submerged culture, and mycelial biomass of P. ostreatus were extracted using alcohols and water as solvents. The extracts were then tested for their antimicrobial activity against the growth of fungi and bacteria. It was observed that the water extract from fruiting bodies had the strongest effect in inhibiting the growth of most fungi...
2015: International Journal of Medicinal Mushrooms
Aditya Ganeshpurkar, Priya Pardhi, Santosh Singh Bhadoriya, Nikhil Jain, Gopal Rai, Alok Pal Jain
The present work was focused to evaluate in vitro antioxidant of Pleurotus florida. The hydroethanolic extract was prepared by macerating basidiocarp with water:ethanol (1:1). The antioxidant potential was evaluated by 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging activity, reducing power, chelating effects on ferrous ions, total antioxidant capacity, and lipid peroxidation inhibitory activity. Further total flavonoid and phenolic content was also estimated. The comparison between different antioxidant assays was done by correlation coefficient...
2015: International Journal of Medicinal Mushrooms
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