scholarly journals Modeling of the adsorption isotherm of Pleurotus ostreatus using Guggenheim-Anderson-de Boer (GAB) equation

2019 ◽  
Vol 11 (4) ◽  
pp. 41-46
Author(s):  
Bello Monsurat ◽  
Olusola Oluwamukomi Matthew ◽  
N. Enujuigha Victor
Keyword(s):  
Adsorption Isotherm ◽  
Pleurotus Ostreatus

Пищевая, лечебная и экологическая ценность грибов Pleurotus ostreatus

2010 ◽  
Vol 18 (1) ◽  
pp. 3-9
Author(s):  
O. M. Alekseenko ◽  
T. M. Polishko ◽  
A. I. Vinnikov
Keyword(s):  
Pleurotus Ostreatus

Проанализированы данные литературы, характеризующие пищевые, лечебные и экологические свойства гриба Рleurotus ostreatus (вешенка обыкновенная). Вешенка – полноценный продукт питания, обеспечивающий потребность организма человека в белках, углеводах, жирах, витаминах и минеральных солях. В белках плодовых тел вешенки содержится 18 аминокислот, восемь из которых незаменимые (изолейцин, лейцин, лизин, метионин, фенилаланин, триптофан, треонин, валин). Лечебная ценность грибов характеризуется содержанием водорастворимых (тиамин В1, рибофлавин В2, ниацин В5, РР, пиридоксин В6, биотин В7, аскорбиновая и пантотеновая кислота) и жирорастворимых (кальциферол, эргостерол, токоферол) витаминов. Отмечена возможность значительного повышения эффективности использования отходов сельского хозяйства за счет получения плодовых тел, а также последующего применения субстрата после плодоношения в растениеводстве и животноводстве. 

ANALISA KANDUNGAN BETA-GLUKAN LARUT AIR DAN LARUT ALKALI DARI TUBUH BUAH JAMUR TIRAM (Pleurotus ostreatus) DAN SHIITAKE (Lentinus edodes)

2013 ◽  
Vol 13 (3) ◽  
Author(s):  
Netty Widyastuti ◽  
Teguh Baruji ◽  
Henky Isnawan ◽  
Priyo Wahyudi ◽  
Donowati Donowati
Keyword(s):  
Molecular Structure ◽  
Molecular Weight ◽  
Immune System ◽  
Pleurotus Ostreatus ◽  
Water Soluble ◽  
Low Molecular Weight ◽  
Lentinus Edodes ◽  
Beta Glucan ◽  
Oyster Mushrooms ◽  
The Difference

Beta glucan is a polysaccharide compound, generally not soluble inwater and resistant to acid. Beta glucan is used as an immunomodulator (enhancing the immune system) in mammals is usually a beta-glucan soluble in water, easily absorbed and has a low molecular weight. Several example of beta-glucan such as cellulose (β-1 ,4-glucan), lentinan (β-1 0.6-glucan) and (β-1 ,3-glucan), pleuran (β-1, 6 and β-1 ,3-glucan) are isolated from species of fungi Basidiomycota include mushrooms (Pleurotus ostreatus) and shiitake (Lentinus edodes).The purpose of thisresearch activity is to obtain beta-glucan compound that can be dissolved in water and in alkali derived from fungi Basidiomycota, i.e, Oyster mushrooms (Pleurotus ostreatus) and shiitake (Lentinus edodes). The result of beta-glucan compared to characterize the resulting beta glucan that is molecular structure . The difference of beta glucan extraction is based on the differences in solubility of beta-glucan. Beta glucan could be water soluble and insoluble water.

CRESCIMENTO DE Lentinula edodes E Pleurotus ostreatus SOB DIFERENTES CONCENTRAÇÕES DE SUBSTÂNCIAS HÚMICAS

2020 ◽  
Author(s):  
Samuel de Abreu LOPES ◽  
Thainá Louzada dos SANTOS ◽  
Sael Elias SÁNCHEZ ◽  
Ricardo Luiz Louro BERBARA ◽  
Andrés Calderín GARCIA
Keyword(s):  
Pleurotus Ostreatus ◽  
Lentinula Edodes

Competitive adsorption of organic solvents using modified and unmodified calcium bentonite clay mineral

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Adsorption Isotherm ◽  
Adsorption Capacity ◽  
Organic Solvents ◽  
Competitive Adsorption ◽  
Correlation Factor ◽  
Isotherm Model ◽  
Isotherm Models ◽  
High Concentration ◽  
Dual Purpose ◽  
Calcium Bentonite

Dodecyltrimethylammonium bromide (DTAB)–modified and unmodified calcium bentonite were both used for the competitive adsorption of aromatics (xylene, ethylbenzene and toluene) and petroleum products (gasoline, dual purpose kerosene and diesel) from their aqueous solution. Infrared spectroscopy (IR) and expansion tests (adsorption capacity and Foster swelling) measurement were performed in order to evaluate the performance of the adsorbents. The Foster swelling index and adsorption capacity of the DTAB modified calcium bentonite in the organic solvents follow the trend: xylene > ethylbenzene > toluene > gasoline > dual purpose kerosene (DPK) > diesel > water. However, the adsorption capacity of the adsorbent in diesel outweighed the adsorption capacity in DPK at high concentration of DTAB indicating that diesel has higher affinity for high DTAB concentration than DPK. The percentage removal of the solvent is directly proportional to the concentration of DTAB used in modifying the bentonite as well as the contact time between the adsorbent and the solvent, hence modified calcium bentonite adsorbed a higher percentage of organic solvents than the unmodified calcium bentonite. The adsorption characteristics of both adsorbents improved remarkably after proper agitation of the organic solvents, the unmodified calcium bentonite however adsorbed more water than the modified bentonite. Data obtained from adsorption isotherm models confirms that Freundlich adsorption isotherm model was favored more than Langmuir adsorption isotherm model with the correlation factor (R2) of the former tending more towards unity. The adsorption of ethylbenzene using DTAB modified and unmodified calcium bentonites follow a pseudo second order kinetics mechanism, suggesting that the rate determining step of adsorption involves both the adsorbent and the organic solvent.

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