CHEN Xin-mei. Optimization of Processing Technology of Pyrolusitum by Orthogonal Design[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(8): 19-21.
DOI:
CHEN Xin-mei. Optimization of Processing Technology of Pyrolusitum by Orthogonal Design[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(8): 19-21. DOI: 10.13422/j.cnki.syfix.2014080019.
Optimization of Processing Technology of Pyrolusitum by Orthogonal Design
Objective: To optimize processing technology of pyrolusitum. Method: Taking the content of MnO2 as index
orthogonal test was designed to optimize processing technology of pyrolusitum with processing temperature
the amount of vinegar and processing time as factors.Effects of processing technology on the content of MnO2 and microscopic morphology of pyrolusitum before and after processed were investigated. Result: The best processing technology of pyrolusitum were identified as calcining for forty min under temperature of 700 ℃ with vinegar amount of 20%;Under these conditions
the mass fraction of MnO2 in crude and processed products were (6.13±0.50)% and (7.35±3.27)%
respectively;Compared with crude products
after vinegar quenched of pyrolusitum
its transparent crystals number increased which could be observed under an optical microscope
appearance of crytals showed a lump or kidney shaped. Conclusion: This optimized technology was stable and feasible
which could provide a reference for criterion of processing technology of pyrolusitum.