Apiogalacturonan

Apiogalacturonans are a type of pectins known to be found in the walls of Lemna and Zostera marina.[1] Substituted galacturonans are characterized by the presence of the saccharide appendant residue D-apiose in the case of apiogalacturonan, branching from a backbone of D-galacturonic acid residues. According to the Complex Carbohydrate Research Center, "[t]he backbone of these polysaccharides is resistant to fragmentation by microbial EPGs."[2]

Lemnan belongs to rare apiogalacturonic pectic polysaccharides, along with zosteran from Zostera marina.[3]

The apiogalacturonan in Lemna has been researched for several nutritional and biotechnology applications in animal models. In brief, it has been shown to have gastric-protection and immune-adjuvant properties. It is also cryoprotective and this application has been patented.

The apiogalacturonan from Zostera Marina currently is used in a variety of cosmetic functions. The German group Beiersdorf AG holds several patents on the application of apiogalacturonan for cosmetic applications. Zostera marina L. was selected for its antioxidative activity and inhibition of matrix metalloproteinase-1 (MMP-1) expression.[4] Apiogalacturonan from both Lemna and Zostera marina can be used in cosmetic products.

References

Gunter, E.A. (2004). "Isolation of Polysaccharides from the Callus Culture of Lemna minor L.". Applied Biochemistry and Microbiology. 40: 80–83. doi:10.1023/B:ABIM.0000010359.68528.fe. S2CID 23940747.
"Plant Cell Walls". Complex Carbohydrate Research Center. University of Georgia. Retrieved 29 April 2020.
Khasina, E.I. (2003). "Gastroprotective effect of lemnan, a pectic polysaccharide from Lemna minor L". Doklady Biological Sciences. 390: 204–206. doi:10.1023/A:1024437012646. PMID 12940141. S2CID 27423842.
Jin-Hui, Kim; Kyung-Eun, Lee; Jin-Hwa, Kim; Young-Ho, Cho; et al. (January 2004). "New Cosmetic Agents for Anti-aging from Zostera marina L.". Journal of the Society of Cosmetic Scientists of Korea. 30.

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[1] Gunter, E.A. (2004). "Isolation of Polysaccharides from the Callus Culture of Lemna minor L.". Applied Biochemistry and Microbiology. 40: 80–83. doi:10.1023/B:ABIM.0000010359.68528.fe. S2CID 23940747.

[2] "Plant Cell Walls". Complex Carbohydrate Research Center. University of Georgia. Retrieved 29 April 2020.

[3] Khasina, E.I. (2003). "Gastroprotective effect of lemnan, a pectic polysaccharide from Lemna minor L". Doklady Biological Sciences. 390: 204–206. doi:10.1023/A:1024437012646. PMID 12940141. S2CID 27423842.

[4] Jin-Hui, Kim; Kyung-Eun, Lee; Jin-Hwa, Kim; Young-Ho, Cho; et al. (January 2004). "New Cosmetic Agents for Anti-aging from Zostera marina L.". Journal of the Society of Cosmetic Scientists of Korea. 30.