scholarly journals The influence of selenium on selected heavy metals cumulation in Oyster mushroom fruiting bodies

10.5219/1037 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 200-205
Author(s):  
Marcel Golian ◽  
Alžbeta Hegedűsová ◽  
Marianna Trochcová ◽  
Adriána Maťová ◽  
Miroslav Šlosár
Keyword(s):  
Heavy Metals ◽  
Food Safety ◽  
Environmental Pollution ◽  
Human Body ◽  
Pleurotus Ostreatus ◽  
Oyster Mushroom ◽  
Sodium Selenate ◽  
Fruiting Bodies ◽  
The World ◽  
Main Component

Food safety is a very frequent topic. The article deals with the problems of fortification of the most grown mushroom in Slovakia, and the 3rd most grown mushroom in the world, Pleurotus ostreatus. Due to the high environmental pollution of soils and air, there is a risk of the production of dangerous fruiting bodies with high heavy metals content. It is known that these substances can promote serious health effects on human body, such as bone weakness or kidney damages (cadmium) and negative process of cognitive developing (lead). The experiment was focused on biofortification with selenium to reduce the accumulation of selected heavy metals (lead, cadmium) in oyster mushroom, grown with intensive cultivation under artificial conditions. This work confirms that the application of sodium selenate to the growing substrate with straw as the main component can reduce the accumulation of cadmium (by 22.45%) and lead (by 64.81%). Research by various authors reported the ability of the oyster mushroom to embed selenium from the substrate into the fruiting bodies. Based on the results of the experiments, we propose to fortify the growing substrate for the production of oyster mushroom by selenium. This way we produce a food with a high antioxidant potential.

scholarly journals Absorption of elements from heavy metals containing culture media by oyster mushroom(Pleurotus ostreatus(Fr.) QUEL.).

1988 ◽  
Vol 35 (3) ◽  
pp. 160-165 ◽  
Author(s):  
Akemi YASUI ◽  
Chuichi TSUTSUMI ◽  
Masanori TAKASAKI ◽  
Takeshi MORI
Keyword(s):  
Heavy Metals ◽  
Pleurotus Ostreatus ◽  
Culture Media ◽  
Oyster Mushroom

scholarly journals KAJIAN PENGGUNAAN SERASAH DAUN KAKAO UNTUK SUBTITUSI SERBUK GERGAJI DAN DEDAK PADI SEBAGAI MEDIA TANAM JAMUR TIRAM PUTIH (Pleurotus ostreatus)

KOVALEN ◽  
2017 ◽  
Vol 3 (1) ◽  
pp. 41
Author(s):  
Abd. Rahman Razak ◽  
Susanti Susanti ◽  
Nurhaeni Nurhaeni ◽  
Muh. Alwi
Keyword(s):  
Leaf Litter ◽  
Rice Bran ◽  
Pleurotus Ostreatus ◽  
Oyster Mushroom ◽  
Fruiting Bodies ◽  
Treatment Comparison ◽  
Treatment Standard ◽  
Nutrient Value ◽  
Growing Medium ◽  
Oyster Mushrooms

Has done research on the study of the use of cocoa leaf litter for substitution sawdust and rice bran as a growing medium white oyster mushroom (Pleurotus ostreatus). This study aims to determine the ability of the cocoa leaf litter in substitute sawdust and rice bran as oyster mushroom media and to determine the nutrient value of the conversion of media into fruiting bodies of oyster mushrooms. Treatment comparison of leaf litter cocoa (SDK), sawdust (SG) and rice bran (DP) there are seven various ie first treatment / standard (SDK: 0 kg, SG: 5 kg, DP: 3 kg), second (SDK: 1 , 5 kg, SG: 5 kg, DP: 1.5 kg), third (SDK: 3 kg, SG: 5 kg, DP: 0 kg), fourth (SDK: 2.5 kg, SG: 2.5 kg DP: 3 kg), fifth (SDK: 5 kg, SG: 3 kg, DP: 0 kg), sixth (SDK: 5 kg, SG: 1.5 kg, DP: 1.5 kg), and seventh (SDK: 5 kg, SG: 0 kg, DP: 3 kg). The results showed that both treatments are best treated with a total weight of 181.122 g fruit.Keywords: cocoa leaf litter, white oyster mushroom

scholarly journals Yield performance of oyster mushroom (Pleurotus ostreatus) on different substrates

2014 ◽  
Vol 38 (4) ◽  
pp. 613-623 ◽  
Author(s):  
D Das ◽  
M Kadiruzzaman ◽  
SK Adhikary ◽  
MY Kabir ◽  
M Akhtaruzzaman
Keyword(s):  
Sugarcane Bagasse ◽  
Pleurotus Ostreatus ◽  
Growth And Yield ◽  
Oyster Mushroom ◽  
Fruiting Bodies ◽  
Yield Attributes ◽  
Randomized Design ◽  
Biological Yield ◽  
Completely Randomized Design ◽  
Coconut Coir

An experiment was conducted at Mushroom Lab of Horticulture Centre under Department of Agricultural Extension (DAE), Khairtala, Jessore to determine the performance of different substrates on the yield of oyster mushroom (Pleurotus ostreatus). Sugarcane bagasse, sawdust, and coconut coir individually and their combinations were used as substrates. The experiment was laid out in Completely Randomized Design (CRD) with five replications. Data were taken from 1st and 2nd flush of different growth and yield attributes of mushroom. The maximum number of effective fruiting bodies was obtained from sawdust (40) and the lowest number (31.6) from combination of sawdust and coconut coir (1:1). In the 1st flush, the maximum weight of individual fruiting body was observed in coconut coir and minimum in sawdust. The highest biological (186.06 g) and economic yield (180.64 g) were obtained from coconut coir and the lowest from sugarcane bagasse. The maximum and minimum harvest index was found in 1st flush at coconut coir and combination of sawdust and sugarcane bagasse (1:1), respectively. Most yield attributes were found higher in coconut coir. Economic yield was positively correlated to number of effective fruiting bodies, pileus diameter, and biological yield. DOI: http://dx.doi.org/10.3329/bjar.v38i4.18946 Bangladesh J. Agril. Res. 38(4): 613-623, December 2013

scholarly journals Investigation on Reducing Chromium Quantity in Chromium Containing Wastes from Leather Industry Using Oyster Mushroom (Pleurotus ostreatus)

2020 ◽  
Vol 115 (1) ◽  
pp. 3-9
Author(s):  
Eser Eke Bayramoğlu ◽  
Anıl Özçelik ◽  
Mehmet Çetin ◽  
Erkan Eren
Keyword(s):  
Environmental Pollution ◽  
Growth Medium ◽  
Pleurotus Ostreatus ◽  
Oyster Mushroom ◽  
Growth Media ◽  
Leather Industry ◽  
Icp Ms ◽  
Blue Phase ◽  
Oyster Mushrooms

In the leather industry, the wastes after the wet blue phase, which are created by the shaving process, are one of the substances that cause environmental pollution. Most of the time, these wastes are buried and may, under some circumstanses, cause serious environmental pollution problems. In this study, the chromium in wet blue shaved waste is to be minimized by using oyster mushrooms (Pleurotus ostreatus). Wet blue shaved wastes were mixed with 0.5%, 1%, 1.5% and 2% doses into the growth medium. After the oyster mushroom growth, the consumption of chromium from the growth media and uptaken by the mushrooms were investigated with  Ege University Argefar Lab.’s House Method using a ICP-MS. 

scholarly journals Assessment of Heavy Metals in Beans (Vigna unguiculata) Obtained from Oja-Tuntun Market, Ile-Ife, Osun State, Nigeria

2020 ◽  
pp. 23-27
Author(s):  
K. T. Ogundele ◽  
O. W. Makinde ◽  
M. Eluyera ◽  
Y. C. Orisamoyi
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Food Safety ◽  
Human Exposure ◽  
Developing Nations ◽  
Limit Set ◽  
Human Diet ◽  
X Ray ◽  
Metal Levels ◽  
The World

Beans play a significant role in human diet especially in developing nations like Nigeria, the largest producer and consumer of beans in the world. To ensure food safety, heavy metal levels need to be monitored on regular basis to control human exposure through dietary intake. This study aimed at assessing the levels of heavy metals in some species of beans available in Ife market, Osun State, Nigeria. Samples of each species of beans were bought and analyzed for heavy metals using X-ray Fluorescence spectroscopy. Results showed that the concentration of heavy metals such as Cu was present at a level ranging from 0.131–0.205 ppm, and Zn was present at level ranging from 0.073–0.182 ppm. Cd was present at concentration < 0.039 ppm. Cu, Zn and Cd levels in natural beans sample were observably below maximum permissible limit set by WHO in Table 2. Therefore, it can be concluded that majority of these beans species were not contaminated with the studied heavy metals, hence pose no immediate health risk to human.

The tripartite relationship in gill-knot disease of the oyster mushroom, Pleurotus ostreatus (Jacq.: Fr.) Kummer

1996 ◽  
Vol 74 (8) ◽  
pp. 1402-1408 ◽  
Author(s):  
Kaku Tsuda ◽  
Kazuyoshi Futai ◽  
Hajime Kosaka
Keyword(s):  
Adult Female ◽  
Adult Male ◽  
Fruiting Body ◽  
Pleurotus Ostreatus ◽  
Laboratory Experiments ◽  
Oyster Mushroom ◽  
Fruiting Bodies ◽  
Fungus Gnat ◽  
Western Japan ◽  
Tripartite Relationship

A disease that causes knots on the gills of the oyster mushroom, Pleurotus ostreatus, has been reported from western Japan. Nematodes inhabit and lay many eggs inside the gill knots. It is surprising that the nematodes causing this disease live in the fruiting body of this fungus, which is known to be nematophagous. In the present study, the fungus gnat Rhymosia domestica (Mycetophilidae, Diptera) was confirmed to be the vector of the nematodes inside the gill knots. This nematode has different adult stages, i.e., a mycetophagous adult female, an adult female infective to the fungus gnat, an adult male, and a mature entomophagous adult female. The occurrence of gill-knot disease was investigated in the field. Laboratory experiments determined that the fungus gnat could not itself form gill knots, because formation of knots was not observed on the gills of fruiting bodies incubated with nematode-free gnats. Observation by means of microscopy and the spore patterns of diseased fruiting bodies confirmed that the knots consist of dedifferentiated hyphal tissues, which do not form spores.

scholarly journals Maize Residue as a Viable Substrate for Farm Scale Cultivation of Oyster Mushroom(Pleurotus ostreatus)

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Abena O. Adjapong ◽  
Kwame D. Ansah ◽  
Faustina Angfaarabung ◽  
Henry O. Sintim
Keyword(s):  
Rice Bran ◽  
Pleurotus Ostreatus ◽  
Oyster Mushroom ◽  
Biological Efficiency ◽  
Growth Media ◽  
Organic Substrates ◽  
Mushroom Cultivation ◽  
Fruiting Bodies ◽  
Growing Media ◽  
Maize Cob

In the search for alternatives to sawdust as growing media in commercial mushroom cultivation, three organic substrates obtainable as crop residue, maize husk, maize cob, and maize stalk, with each being supplemented with rice bran, were evaluated as growth media for the oyster mushroom,Pleurotus ostreatus(Kummer). For the tested alternatives to sawdust, the harvested weight of fruiting bodies that sprouted on a kilogram maize husk media per crop (32.99 g) was the highest. Sawdust media supported significantly (P<0.001) heavier fruiting bodies (42.18) than the maize residues. The peak mushroom harvests for the various substrates were obtained between the first and seventh fruiting body flushes. The biological efficiency of the substrates, which measured usable nutrients indicated that maize stalk supplemented with rice bran, was 39% compared to that of the sawdust media (60%). The maize husk media and the maize cob media had biological efficiencies of 32% and 9.5%, respectively. These results indicate that two of the tested growing media (maize stalk or husk) produced mushrooms with yield characteristics that were comparable to the well-used sawdust in the cultivation of oyster mushrooms. The environmental and economic parameters involved in the use and carting of sawdust make these on-farm crop residues a viable alternative for mushroom cultivation in especially nonforest zones of Ghana.

scholarly journals ВИЗНАЧЕННЯ НОВИХ ВИСОКОПРОДУКТИВНИХ ІЗОЛЯТІВ ГРИБА PLEUROTUS OSTREATUS (JACQ.: FR.) KUMMER ЗА ДОПОМОГОЮ КОЕФІЦІЄНТА ГАБІТУСУ

2012 ◽  
pp. 65-68 ◽  
Author(s):  
Н. В. Дорошкевич ◽  
В. М. Шевкопляс
Keyword(s):  
Pleurotus Ostreatus ◽  
Solid Substrate ◽  
External Factors ◽  
Oyster Mushroom ◽  
Cultivation Condition ◽  
Fruiting Bodies ◽  
Additional Influence

Здійснено оцінку господарсько-біологічних показ-ників нових ізолятів гриба P. ostreatus за умов ін-тенсивного культивування на твердому вуглецево-му субстраті – лушпинні соняшника, як найбільшрозповсюдженому в Україні. Встановлено, що всікультури ґливи звичайної здатні утворювати пло-дові тіла без температурного шоку і додатковоговпливу зовнішніх факторів. Виявлено морфобіоло-гічні особливості нових ізолятів гриба P. ostreatus,а саме: за розміром та кількістю плодових тіл ізростків, формою шапинки. Зроблено розрахуноккоефіцієнта габітусу плодових тіл ґливи звичайної,за результатами якого встановлено найбільш пер-спективні ізоляти В-99 і К-99 для промисловогогрибівництва, порівняно з контрольним штамомНК-35. In this work the estimation of economical and biologicalquantities of new isolates of the P. ostreatus fungus inintensive cultivation condition on solid substrate (huskssunflower) as most wide spreading in Ukraine was made.It was found out that all cultures of oyster mushroom areable to form fruiting bodies without temperature shockand additional influence of other external factors. Themorphological and biological peculiarity of new isolatesof the P. ostreatus fungus that is a size of fruiting bodies,fruiting bodies and accretes quantity and size of hatfungushas been found. The calculation of fruiting bodieshabitus of the new isolates of oyster mushroom has beendone. By resulted experiments the most perspectiveisolates (B-99 and K-99) against with HK-35 controlstrain for industrial cultivation has been found.

scholarly journals Certain Critical Observations on Importance of Environmental Education in Society

2021 ◽  
Vol 9 (VII) ◽  
pp. 2705-2707
Author(s):  
Bharti Dwivedi
Keyword(s):  
Heavy Metals ◽  
Environmental Education ◽  
Environmental Pollution ◽  
Environmental Issues ◽  
Natural World ◽  
Specialized Knowledge ◽  
The World ◽  
Harmful Substances ◽  
Irreparable Damage

Environmental pollution is one of the greatest problems that the world is facing today. This is Increasing with every passing year and causing grave and irreparable damage to the environment potentially harmful substances e.g. pesticides, heavy metals and hydrocarbons are often released into the environment. Environmental education provides the necessary skills and specialized knowledge to meet the challenges related to it. The main purpose of this education is to provide knowledge, to create awareness, to create an attitude of contemplation and to provide the necessary skills to control the environmental Environmental Education helps in building the natural world, gives knowledge and method to solve complex environmental issues which also gives advancement to productive economies and harmony among communities.

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