Structural study of a pectic polysaccharide fraction isolated from “mountain tea” (Sideritis scardica Griseb.)

2021 ◽  
Vol 260 ◽  
pp. 117798
Author(s):  
Manol Ognyanov ◽  
Connie A. Remoroza ◽  
Henk A. Schols ◽  
Nadezhda Tr. Petkova ◽  
Yordan N. Georgiev
Keyword(s):  
Structural Study ◽  
Pectic Polysaccharide ◽  
Polysaccharide Fraction

Effect of Oral Administration of a Pectic Polysaccharide Fraction from a Kampo (Japanese Herbal) Medicine “Juzen-Taiho-To” on Antibody Response of Mice

Planta Medica ◽  
1995 ◽  
Vol 61 (05) ◽  
pp. 429-434 ◽  
Author(s):  
Hiroaki Kiyohara ◽  
Tsukasa Matsumoto ◽  
Norito Takemoto ◽  
Hideki Kawamura ◽  
Yasuhiro Komatsu ◽  
...  
Keyword(s):  
Herbal Medicine ◽  
Antibody Response ◽  
Oral Administration ◽  
Pectic Polysaccharide ◽  
Polysaccharide Fraction ◽  
Japanese Herbal Medicine

scholarly journals Gastroprotective activity of a pectic polysaccharide fraction obtained from infusion of Sedum dendroideum leaves

Phytomedicine ◽  
2018 ◽  
Vol 41 ◽  
pp. 7-12 ◽  
Author(s):  
Ana Flávia de Oliveira ◽  
Bruna Barbosa da Luz ◽  
Maria Fernanda de Paula Werner ◽  
Marcello Iacomini ◽  
Lucimara M.C. Cordeiro ◽  
...  
Keyword(s):  
Gastroprotective Activity ◽  
Pectic Polysaccharide ◽  
Polysaccharide Fraction

scholarly journals Structure of a Pectic Polysaccharide Fraction from Zea Shoots

1989 ◽  
Vol 89 (3) ◽  
pp. 792-797 ◽  
Author(s):  
Yoji Kato ◽  
Donald J. Nevins
Keyword(s):  
Pectic Polysaccharide ◽  
Polysaccharide Fraction

Structural, rheological and functional properties of galactose-rich pectic polysaccharide fraction from leek

2020 ◽  
Vol 229 ◽  
pp. 115549 ◽  
Author(s):  
Manol Ognyanov ◽  
Connie Remoroza ◽  
Henk A. Schols ◽  
Yordan N. Georgiev ◽  
Nadezhda Tr. Petkova ◽  
...  
Keyword(s):  
Functional Properties ◽  
Pectic Polysaccharide ◽  
Polysaccharide Fraction

scholarly journals Isolation and Characterization of Pectic Polysaccharide Fraction from In Vitro Suspension Culture of Fumaria officinalis L.

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Manol Ognyanov ◽  
Yordan Georgiev ◽  
Nadezhda Petkova ◽  
Ivan Ivanov ◽  
Ivelina Vasileva ◽  
...  
Keyword(s):  
Suspension Culture ◽  
Ammonium Oxalate ◽  
Arabinogalactan Protein ◽  
Pectic Polysaccharide ◽  
Polysaccharide Fraction ◽  
Acidic Polysaccharide ◽  
Rhamnogalacturonan I ◽  
Isolation And Characterization ◽  
Fumaria Officinalis

In the current study, an acidic polysaccharide from the in vitro suspension culture of Fumaria officinalis L. was obtained by extraction with 0.8% (w/v) aqueous ammonium oxalate. The polysaccharide fraction mainly consisted of galacturonic acid (41.0%), followed by galactose (7.3%) and arabinose (5.6%). This suggests the presence of arabinogalactan side chains in the rhamnogalacturonan-I segment of the studied pectin, which was mainly built up by homogalacturonan segments. The pectin was evaluated as low-methyl-esterified (45.0%) with degree of acetylation 3.4%. The polymer fraction was consisted of different molecular weight populations in the range of 6–600 kDa. The high amount of 4-L-hydroxyproline (11.7% of total protein) and the specific positive reaction to Yariv’s phenylglycoside reagent indicated the presence of an arabinogalactan protein in the cell walls. The functional properties of the polysaccharide fraction were evaluated, as it possessed better water-holding capacity than oil-holding capacity. The studied pectin demonstrated significant foaming ability and promising emulsifying properties in a concentration 1%. Therefore, the isolated polysaccharide fraction could be successfully used as emulsifier and foaming agent in food products and pharmaceutical supplements.

An Ultra-Structural Study of Human Melanoma in Vivo and Vitro

1976 ◽  
Vol 34 ◽  
pp. 258-259
Author(s):  
James R. Gaylor ◽  
Fredda Schafer ◽  
Robert E. Nordquist
Keyword(s):  
Endoplasmic Reticulum ◽  
Golgi Apparatus ◽  
Protein Aggregation ◽  
Structural Study ◽  
Human Melanoma ◽  
Protein Matrix ◽  
Early Form ◽  
Endoplasmic Reticulum Protein ◽  
Mitochondrial Origin

Several theories on the origin of the melanosome exist. These include the Golgi origin theory, in which a tyrosinase-rich protein is "packaged" by the Golgi apparatus, thus forming the early form of the melanosome. A second theory postulates a mitochondrial origin of melanosomes. Its author contends that the melanosome is a modified mitochondria which acquires melanin during its development. A third theory states that a pre-melanosome is formed in the smooth or rough endoplasmic reticulum. Protein aggregation is suggested by one author as a possible source of the melanosome. This fourth theory postulates that the melanosome originates when the protein products of several genetic loci aggregate in the cytoplasm of the melanocyte. It is this protein matrix on which the melanin is deposited. It was with these theories in mind that this project was undertaken.

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