Research on Degradation of Polymeric Procyanidins from the Lotus Roomwith SO42-/TiO2 Solid Acid
[1]Chen WeihangZhang HuiZhang Jie.Research on Degradation of Polymeric Procyanidins from the Lotus Roomwith SO42-/TiO2 Solid Acid[J].Journal of Zhengzhou University (Engineering Science),2019,40(03):8-.[doi:10.13705/j.issn.1671-6833.2018.06.010]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
40
Number of periods:
2019 03
Page number:
8-
Column:
Public date:
2019-04-30
- Title:
- Research on Degradation of Polymeric Procyanidins from the Lotus Roomwith SO42-/TiO2 Solid Acid
- Keywords:
- High polymer proanthocyanidins; solid acid; degradation; Average degree of polymerization; Degradation rate
- CLC:
- -
- Abstract:
- Antioxidant performance of polymeric procyanidins was significantly less than oligomers, and not easily absorbed by the body. The research is devoted to the preparation of SO42- / TiO2 solid acid catalyst with excellent performance, and the solid acid is used to degrade procyanidins in lotus-shaped medium. Degradation of Polymeric Procyanidins was analyzed by UV spectrophotometer and gel chromatography. The degradation degree was evaluated by the average polymeric degree and degradation rate. Under the reaction conditions of 10 ml of the solution of proanthocyanidin as degradation raw material, when the addition of solid acid was 0.05g, the reaction temperature was 70 ℃ and the reaction time was 60min , the results showed that the average polymerization degree of the polymer decreased from 5.95 to 2.31 and the degradation rate can reach 61.18%
- References:
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Last Update:
2019-04-16