Influence of Nelumbinis Receptaculum from different regions and picking times on content of proanthocyanidins
10.7501/j.issn.0253-2670.2015.04.022
- Author:
Zhou-Xin YUAN
1
Author Information
1. Lishui Hospital of Traditional Chinese Medicine
- Publication Type:Journal Article
- Keywords:
Dried in shade;
Harvest times;
Nelumbinis Receptaculum;
Oven drying method;
Proanthocyanidins;
Suning method
- From:
Chinese Traditional and Herbal Drugs
2015;46(4):576-579
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the contents of proanthocyanidins in Nelumbinis Receptaculum (NR) obtained from the different regions and harvest times, so as to determine the appropriate harvest times and proper planting regions of NR as well as provide the support for the reasonable use of NR. Methods: Twelve regions and six different harvest periods in Zhejiang were collected and the contents of proanthocyanidins were determined by UV spectrophotometry. Results: Maturity had great influence on the contents of proanthocyanidins, The mature had much more proanthocyanidins than the young. Different drying methods had influence on the contents of proanthocyanidins, among which oven drying method has the least influence, followed by drying in the shade, then suning method has the most influence. There was a certain difference in the contents of proanthocyanidins in NR from the different regions and harvest times with a characteristic interval fluctuations. Conclusion: Mature NR should be collected consistent with lotus seeds, the NR should be dried in dryer or in shade, avoid exposing to the sun. The contents of proanthocyanidins in NR from different regions and picking times change in the variation range of 6% to 8%. Wide origin places have been demonstrated suitable to providing the raw materials for industrial production and NR collection is appropriate from the middle of July to September.
