Optimization of extraction of total flavonoids from leaves of Psidium guajava by orthogonal test based on information entropy weighting / 中草药
Chinese Traditional and Herbal Drugs
;
(24): 5260-5265, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-850742
ABSTRACT
Objective:
To optimize the extraction of total flavonoids from leaves of Psidium guajava.Methods:
L9(34) orthogonal test was used to screen the optimal extraction technology of total flavonoids from leaves of P. guajava with ethanol concentration, solid-liquid ratio, extraction time, and extraction times as factors. The weight coefficient of the four evaluation indicators, including the yield of total flavonoids, hyperoside, quercetin-3-O-β-D-pyranarabinoside, and quercetin-3-O-α-L-furanarabinoside was calculated by information entropy weighting so as to calculate comprehensive score. We obtained the optimal technology by orthogonal analysis based on the comprehensive score.Results:
The optimal extraction technology was that using 8-fold 70% ethanol water to extract 2 h for three times. The mean comprehensive score of the three batches was 0.142 1 and the RSD was 2.37%.Conclusion:
The optimal extraction technology of total flavonoids from leaves of P. guajava was stable and feasible with high yield.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Traditional and Herbal Drugs
Year:
2019
Type:
Article
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