Structure of arabinogalactan oligosaccharides derived from arabinogalactan-protein of Coffea arabica instant coffee powder

Matulovà, Maria; Capek, Peter; Kaneko, Satoshi; Navarini, Luciano; Liverani, F. S.

doi:10.1016/j.carres.2011.03.016

Cited by 44 publications

(19 citation statements)

References 27 publications

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“…Its molecular mass dropped to ∼5000-6000 in comparison with a high molecular mass (500-1500 × 10 3 ) AGPs in green coffee due to drastic industrial conditions (roasting, grinding, extraction and drying) during the instant coffee powder preparation. Structural studies confirmed a ␤-(1 → 3)-linked galactopyranosyl backbone branched at C-6 by short side oligomeric chains of dp 2-4 composed of Gal and Ara residues, and confirmed thus the ␣-arabino-3,6-␤-galactan type II in the instant coffee powder [15,16].…”

Section: Resultssupporting

confidence: 56%

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Antitussive and immunomodulating activities of instant coffee arabinogalactan-protein

Nosálóvá

Prisenžňáková

Paulovičová

et al. 2011

International Journal of Biological Macromolecules

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Section: Resultssupporting

confidence: 56%

“…However, little attention has been paid to instant coffee AGPs, which were shown to be significantly modified during industrial process. The pioneering work on AGP isolation procedure from instant coffee performed by Wolfrom and Anderson [13] has been re-discussed in term of its structure in our previous works [14][15][16].…”

Section: Introductionmentioning

confidence: 97%

Antitussive and immunomodulating activities of instant coffee arabinogalactan-protein

Nosálóvá

Prisenžňáková

Paulovičová

et al. 2011

International Journal of Biological Macromolecules

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“…25,26,28,32 The assignment of H-2 (3.64 ppm) can be confirmed by its correlation with the H-1 signal in COSY and TOCSY spectra ( Figure 5). The chemical shift of H-3 can be attributed to 3.83 ppm from its correlation with H-2.…”

Section: ■ Results and Discussionmentioning

confidence: 51%

Structural Characterization of Two Water-Soluble Polysaccharides from Black Soybean (Glycine max (L.) Merr.)

Liu

Wen

Jin

2014

J. Agric. Food Chem.

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Black soybeans (Glycine max (L.) Merr.) have been widely used as a health food and medicinal herb in oriental medicine. In the present study, the chemical structures of two water-soluble polysaccharides (black soybean polysaccharide 1 (BSPS-1) and black soybean polysaccharide 3 (BSPS-3)) isolated from black soybeans were characterized by high performance size-exclusion chromatography (HPSEC), methylation analysis, and 1D ( 1 H, 13 C) and 2D (COSY, TOCSY, HSQC, NOESY, and HMBC) NMR spectra. The molecular weights of BSPS-1 and BSPS-3 were 1.95 × 10 5 and 1.88 × 10 5 Da, respectively. Methylation analysis and NMR spectra indicate that BSPS-1 is composed of 1,6-α-D-glucopyranosyl residues. By contrast, BSPS-3 is mainly composed of a 1,3-β-D-galactopyranosyl residue backbone with side chains substituted at the O-6 position consisting of large content of T-α-L-Araf-(1→ residues, and small contents of →5)-α-L-Araf-(1→, →2)-α-L-Rhap-(1→, and 4-O-Me-β-DGlcAp-(1→ residues. Our results suggest that BSPS-1 is a linear (1→6)-α-D-glucan, whereas BSPS-3 is a type II arabinogalactan. The unique structures of BSPS-1 and BSPS-3 indicate that they might have wide applications in food and pharmaceutical industries.

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“…2 Trend lines of the main classes of coffee natural products during the different major steps of maturation and preparation. This original figure is a compilation of data obtained from different articles (Hečimović et al 2011;Matulova et al 2011;Mills et al 2013;Moreira et al 2012;Mullen et al 2011;Silva et al 2012;Somporn et al 2011;Wei et al 2012b) arabinogalactans, a linear chain of D-galactose residues is substituted by linear chains of D-galactose and D-arabinose. Combinations of polysaccharides can also include proteins (arabinogalactan proteins) and other functional groups (acetyl, glucuronic acid…).…”

Section: A Pharmacy In Your Cupmentioning

confidence: 99%

Coffee provides a natural multitarget pharmacopeia against the hallmarks of cancer

2015

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Coffee is the second most popular beverage in the world after water with a consumption of approximately two billion cups per day. Due to its low cost and ease of preparation, it is consumed in almost all countries and by all social classes of the population through different modes of preparation. Despites its simple appearance, a cup of coffee is in fact a complex mixture that contains hundreds of molecules, the composition and concentration of which vary widely and depend on factors including the origin of the coffee tree or its metabolism. Although an excessive consumption of coffee can be harmful, many molecules that are present in this black decoction exert anticancer properties. This review aims to describe the different primary coffee-containing substances that exert chemopreventive and bioactive activities against the different hallmarks and enabling characteristics of cancer, thus explaining the anticancer health benefit of black coffee.

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Structure of arabinogalactan oligosaccharides derived from arabinogalactan-protein of Coffea arabica instant coffee powder

Cited by 44 publications

References 27 publications

Antitussive and immunomodulating activities of instant coffee arabinogalactan-protein

Antitussive and immunomodulating activities of instant coffee arabinogalactan-protein

Structural Characterization of Two Water-Soluble Polysaccharides from Black Soybean (Glycine max (L.) Merr.)

Coffee provides a natural multitarget pharmacopeia against the hallmarks of cancer

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