scholarly journals Isolation and Characterization of Complement System Activating Polysaccharides from the Hot Water Extract of the Leaves of Capsicum annuum L.

2002 ◽  
Vol 12 (1) ◽  
pp. 87-95
Keyword(s):  
Capsicum Annuum ◽  
Complement System ◽  
Water Extract ◽  
Hot Water ◽  
Capsicum Annuum L ◽  
Isolation And Characterization ◽  
Hot Water Extract

Structural characterization of a heteropolysaccharide isolated from hot water extract of the stems of Amaranthus tricolor Linn. (Amaranthus gangeticus L.)

2009 ◽  
Vol 344 (17) ◽  
pp. 2412-2416 ◽  
Author(s):  
Ramsankar Sarkar ◽  
Chanchal K. Nandan ◽  
Soumitra Mandal ◽  
Pradip Patra ◽  
Debsankar Das ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Water Extract ◽  
Hot Water ◽  
Amaranthus Tricolor ◽  
Hot Water Extract

Isolation and characterization of a sulfated polysaccharide from the brown algaSargassum patensand determination of its anti-herpes activity

2003 ◽  
Vol 81 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Wen Zhu ◽  
Vincent E.C Ooi ◽  
Paul K.S Chan ◽  
Put O Ang Jr.
Keyword(s):  
Brown Alga ◽  
Water Extract ◽  
Sulfated Polysaccharide ◽  
Hot Water ◽  
Major Constituent ◽  
Herpes Simplex Viruses ◽  
Isolation And Characterization ◽  
Hot Water Extract ◽  
Vero Cell Line ◽  
Hsv 1

Bioactivity-guided fractionation of the hot water extract from the brown alga Sargassum patens led to the isolation of a polysaccharide as an antiviral component against herpes simplex viruses which are the cause of cold sores (HSV-1) and genital herpes (HSV-2). The polysaccharide contained a sulfur group that could be present as a sulfate ester. It is thus a sulfated polysaccharide with a molecular mass of about 424 kDa, and is designated SP-2a. Gas chromatographic assay showed that the polysaccharide consisted of fucose, galactose, mannose, xylose, glucose, and galactosamine. The fucose is the major constituent sugar (35.3%), followed by galactose (18.4%). The 50% effective concentration (EC50) against HSV-2, HSV-1, and HSV-1 acyclovir resistant strain was 1.3, 5.5, and 4.1 µg/mL, respectively. The 50% cytotoxic concentration (CC50) of SP-2a on the growth of normal Vero cell line was more than 4000 µg/mL. Therefore SP-2a of S. patens may be a potent agent for treating HSV infections. Key words: sulfated polysaccharide, anti-herpes activities, brown alga, Sargassum.

scholarly journals Characterization of Proteoglycan and Hyaluronan in Hot Water Extract from Salmon Cartilage

2017 ◽  
Vol 64 (4) ◽  
pp. 83-90
Author(s):  
Ikuko Kakizaki ◽  
Ayako Miura ◽  
Takashi Mineta ◽  
Jinseo Hong ◽  
Yoji Kato
Keyword(s):  
Water Extract ◽  
Hot Water ◽  
Hot Water Extract

scholarly journals Isolation and characterization of CaMF3, an anther-specific gene in Capsicum annuum L.

2012 ◽  
Vol 35 (4) ◽  
pp. 810-817 ◽  
Author(s):  
Xuefeng Hao ◽  
Changming Chen ◽  
Guoju Chen ◽  
Bihao Cao ◽  
Qinghua Chen ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Specific Gene ◽  
Capsicum Annuum L ◽  
Isolation And Characterization

scholarly journals EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL

2021 ◽  
Vol 45 ◽  
Author(s):  
Sarah Rebeka Rodrigues Marques ◽  
Tatiane Kelly Barbosa Azevêdo ◽  
Aline Rogéria Freire de Castilho ◽  
Renata Martins Braga ◽  
Alexandre Santos Pimenta
Keyword(s):  
Condensed Tannins ◽  
Water Extract ◽  
Acacia Mangium ◽  
Hot Water ◽  
Northeast Brazil ◽  
Forest Species ◽  
Ftir Characterization ◽  
Hot Water Extract ◽  
Solids Content

ABSTRACT Condensed tannins are chemical compounds derived from the secondary metabolism of plants. They are of particular interest due to their broad range of technological uses and applications. The objective of this study was to extract, quantify, and characterize by Fourier-transform infrared spectroscopy (FTIR) the bark tannins of four forest species grown in Northeast Brazil: Acacia mangium, Azadirachta indica, Mimosa tenuiflora, and Mimosa caesalpiniifolia. Bark samples were collected from 5 trees of each species grown in a five-year-old forest stand. Samples were collected, grounded, and submitted to extraction with hot water, then measured to determine total solids content (TSC), Stiasny number (SN), and condensed tannins content (CTC). FTIR spectra were acquired from tannin samples fixed in potassium bromide pellets. Among the four species, M. tenuiflora presented the highest CTC, equal to 23.4%, and the purest crude hot-water extract with SN of 91.27%. Based on FTIR characterization, tannins from M. caesalpiniifolia, A. indica, and A. mangium barks were classified as proanthocyanidins and those from M. tenuiflora bark as prodelphinidins.

Structural characterization of an immunoenhancing heteropolysaccharide isolated from hot water extract of the fresh leaves of Catharanthus rosea

2010 ◽  
Vol 81 (3) ◽  
pp. 584-591 ◽  
Author(s):  
Sukesh Patra ◽  
Kankan K. Maity ◽  
Sanjoy K. Bhunia ◽  
Biswajit Dey ◽  
Debsankar Das ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Water Extract ◽  
Hot Water ◽  
Hot Water Extract

Characterization of a Hot Water Extract of an Edible Cyanobacterium Nostochopsis sp. for Use as an Ingredient in Cosmetics

2014 ◽  
Vol 20 (2) ◽  
pp. 505-507 ◽  
Author(s):  
Yukinori Yabuta ◽  
Eri Hashimoto ◽  
Takashi Takeuchi ◽  
Setsuko Sakaki ◽  
Yuji Yamaguchi ◽  
...  
Keyword(s):  
Water Extract ◽  
Hot Water ◽  
Hot Water Extract
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