PMID- 18966410
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20121002
LR  - 20190729
IS  - 0039-9140 (Print)
IS  - 0039-9140 (Linking)
VI  - 42
IP  - 11
DP  - 1995 Nov
TI  - Preparative supercritical fluid extraction of pyrethrin I and II from pyrethrum 
      flower.
PG  - 1745-9
AB  - A preparative supercritical fluid extraction system is described and was used 
      with supercritical carbon dioxide to extract the active insecticide components 
      pyrethrin I (PI) and pyrethrin II (PII) successfully from pyrethrum flower. A 
      high-performance liquid chromatography method was developed and was used to 
      separate and analyze the supercritical carbon dioxide extracts. Extraction 
      efficiencies under several different extraction conditions were examined. Under 
      the conditions examined, the most effective extractions of PI and PII (140 +/- 18 
      mg and 55 +/- 9 mg per 100 g of dry pyrethrum flower powder) were performed at 40 
      degrees C and 1200 psi. The results showed that extraction efficiencies of 
      supercritical carbon dioxide are much better than those of n-hexane for 
      pyrethrins I and II. During the extraction process, the most efficient extraction 
      period was the first 3 h of the experiment.
FAU - Pan, W H
AU  - Pan WH
AD  - Institute of Pharmacology, National Yang-Ming University, Shih-Pai, Taipei, 
      Taiwan, ROC.
FAU - Chang, C C
AU  - Chang CC
FAU - Su, T T
AU  - Su TT
FAU - Lee, F
AU  - Lee F
FAU - Fuh, M R
AU  - Fuh MR
LA  - eng
PT  - Journal Article
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
EDAT- 1995/11/01 00:00
MHDA- 1995/11/01 00:01
CRDT- 1995/11/01 00:00
PHST- 1995/03/14 00:00 [received]
PHST- 1995/05/30 00:00 [revised]
PHST- 1995/05/31 00:00 [accepted]
PHST- 1995/11/01 00:00 [pubmed]
PHST- 1995/11/01 00:01 [medline]
PHST- 1995/11/01 00:00 [entrez]
AID - 0039-9140(95)01657-0 [pii]
AID - 10.1016/0039-9140(95)01657-0 [doi]
PST - ppublish
SO  - Talanta. 1995 Nov;42(11):1745-9. doi: 10.1016/0039-9140(95)01657-0.