Patent · US Expired

Process for drying medicinal plants

US6128831A · kind A · utility

15Cited by
5References
18Claims
0Family size

Inventors

Key dates

Filing dateJun 3, 1999
Grant dateOct 10, 2000
Priority date
Expiry dateJun 3, 2019

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF26B11/0495
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Medicinal plants are dried by applying microwave power to plant materials in a chamber under reduced pressure to reduce the moisture content of the plant materials without significantly reducing (oxidizing) the concentration of active medicinal component in the dried plant materials and thereby produce a dried medicinal plant product which more closely approaches the medicinal properties of the fresh plant than those of dried products produced by conventional air drying processes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.