AI Article Synopsis
- A natural polysaccharide named TPS-5 was extracted from Liupao tea, with a molecular weight of 48.289 kDa and characterized as a pectin-type acidic polysaccharide.
- The molecular structure of TPS-5 features a specific backbone and branches, contributing to its unique properties.
- Biological evaluations showed that TPS-5 exhibits various health benefits, including antioxidant and digestive properties, indicating its potential use in functional foods or medicinal applications.
Article Abstract
This study extracted and purified a natural polysaccharide (TPS-5) that has a molecular weight of 48.289 kDa from Liupao tea, a typical dark tea with many benefits to human health. TPS-5 was characterized as a pectin-type acidic polysaccharide. It has a backbone composed of → 2,4)- α- L-Rhap-(1) → 4)- α- D-GalAp-(1) →, with a branch composed of → 5)- α- L-Ara-(1 → 5,3)- α- L-Ara-(1 → 3)- β- D-Gal-(1 → 3,6)- β- D-Galp-(1) →. The in vitro biological activity evaluation illustrated that TPS-5 has free radical scavenging, ferric-ion-reducing, digestive enzyme inhibitory, and bile-salt-binding abilities. These results suggest that TPS-5 from Liupao tea has potential applications in functional foods or medicinal products.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10252386 | PMC |
| http://dx.doi.org/10.3390/foods12112226 | DOI Listing |
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- * Key compounds linked to bitterness (like caffeine and catechin gallate) and astringency (like gallic acid) varied significantly during fermentation, affecting the tea's flavor profile and offering insights for quality enhancement.
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