Chemical analysis of new water-soluble (1→6)-, (1→4)-α, β-glucan and water-insoluble (1→3)-, (1→4)-β-glucan (Calocyban) from alkaline extract of an edible mushroom, Calocybe indica (Dudh Chattu)

2010 ◽  
Vol 345 (18) ◽  
pp. 2657-2663 ◽  
Author(s):  
Soumitra Mandal ◽  
Kankan K. Maity ◽  
Sanjoy K. Bhunia ◽  
Biswajit Dey ◽  
Sukesh Patra ◽  
...  
2012 ◽  
Vol 347 (1) ◽  
pp. 172-177 ◽  
Author(s):  
Eshita Kar Mandal ◽  
Kousik Maity ◽  
Saikat Maity ◽  
Sanjoy K. Gantait ◽  
Birendra Behera ◽  
...  

2010 ◽  
Vol 345 (18) ◽  
pp. 2736-2741 ◽  
Author(s):  
Biswajit Dey ◽  
Sanjoy K. Bhunia ◽  
Kankan K. Maity ◽  
Sukesh Patra ◽  
Soumitra Mandal ◽  
...  

Author(s):  
Jigyasa Pathak ◽  
Aswathi M. P. ◽  
B. R. Patel ◽  
Harisha C. R. ◽  
Shukla Vinay J.

Background: Desmodium velutinum (Fabaceae) is one of the wild edible plants used traditionally to treat diarrhoea, haematuria, infertility and also externally used to treat scorpion bites. Though various parts of the plant have been used for therapeutic purpose, panchanga of the plant has not been studied for its Pharmacognostical and phytochemical characteristics in detail, following scientific parameters. Hence in the present study Desmodium velutinum whole plant has been studied for its pharmacognostical and phytochemical characters and compared with commonly used species Desmodium gangeticum. Methods: Whole plant of Desmodim velutinum was collected from Paikmal, Odisha and Desmodium gangeticum was collected from Junagarh, Gujarat in the month of November 2019 following good collection practices and shade dried. Pharmacognostical study and analytical study were performed following standard pharmacopoeial procedures. Results: Whole plant (Panchanga) of former is sweetish and latter is bitter. Powder microscopy of Desmodium gangeticum showed presence of rhomboidal crystals and lignified annular and spiral vessels. Desmodium velutinum showed presence of prismatic crystals and lignified pitted vessels. Physico-chemical analysis showed higher loss on drying in Desmodium gangeticum, and higher water soluble extractive values of Desmodium velutinum. Phytochemical estimation showed the presence of Proteins, tannins, and carbohydrates in both samples. HPTLC study showed similar Rf value 0.82 and 0.94 at 254 and 0.03 and 0.41 at 366nm. Conclusion: Basing upon the analytical and microscopic similarities Desmodium velutinum may be considered as substitute of Desmodium gangeticum


2011 ◽  
Vol 346 (13) ◽  
pp. 2039-2044 ◽  
Author(s):  
Sanjoy Kumar Bhunia ◽  
Biswajit Dey ◽  
Kankan K. Maity ◽  
Sukesh Patra ◽  
Soumitra Mandal ◽  
...  

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2740 ◽  
Author(s):  
Ekaterina Baeva ◽  
Roman Bleha ◽  
Ekaterina Lavrova ◽  
Leonid Sushytskyi ◽  
Jana Čopíková ◽  
...  

Oyster mushrooms are an interesting source of biologically active glucans and other polysaccharides. This work is devoted to the isolation and structural characterization of polysaccharides from basidiocarps of the cultivated oyster mushroom, Pleurotus ostreatus. Five polysaccharidic fractions were obtained by subsequent extraction with cold water, hot water and two subsequent extractions with 1 m sodium hydroxide. Branched partially methoxylated mannogalactan and slightly branched (1→6)-β-d-glucan predominated in cold- and hot-water-soluble fractions, respectively. Alternatively, these polysaccharides were obtained by only hot water extraction and subsequent two-stage chromatographic separation. The alkali-soluble parts originating from the first alkali extraction were then fractionated by dissolution in dimethyl sulfoxide (DMSO). The polysaccharide insoluble in DMSO was identified as linear (1→3)-α-d-glucan, while branched (1→3)(1→6)-β-d-glucans were found to be soluble in DMSO. The second alkaline extract contained the mentioned branched β-d-glucan together with some proteins. Finally, the alkali insoluble part was a cell wall complex of chitin and β-d-glucans.


2015 ◽  
Vol 134 ◽  
pp. 375-384 ◽  
Author(s):  
Dilip K. Manna ◽  
Ashis K. Nandi ◽  
Manabendra Pattanayak ◽  
Prasenjit Maity ◽  
Satyajit Tripathy ◽  
...  

2005 ◽  
Vol 340 (16) ◽  
pp. 2533-2539 ◽  
Author(s):  
Dilip Rout ◽  
Soumitra Mondal ◽  
Indranil Chakraborty ◽  
Malay Pramanik ◽  
Syed S. Islam

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