Back to Search
Start Over
Optimized Extraction of Antioxidants from Olive Leaves Using Augmented Simplex Centroid Design
- Source :
- Analytical Letters. 49:1323-1333
- Publication Year :
- 2015
- Publisher :
- Informa UK Limited, 2015.
-
Abstract
- The olive tree historically provided economic benefits to the countries in Mediterranean basin as a source of products contributing to health promotion. Some of the health benefits attributed to olive tree leaves are related to phenolic composition. In this study, a 10-point augmented simplex-centroid design was used to formulate a three-component mixture system using water, ethanol, and methanol, adequate for the extraction of phenolics from olive leaves. Phenolic and flavonoid content, antioxidant activity with 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid), oleuropein, and luteolin7-O-glucoside concentrations were selected as responses. The optimal extraction mixture was: 12.7% water, 14.8% ethanol, and 72.5% methanol. The yields of total phenolic and flavonoid compounds, oleuropein, and luteolin-7-O-glucoside were 163.69 ± 6.35 mg gallic acid g−1, 114.69 ± 3.56 mg rutin g−1, 858.29 µg g−1, and 21.04 µg g−1 dry weight of olive leaves. The antioxidant capacity was 238.71 ± 4.35 mM equiva...
- Subjects :
- chemistry.chemical_classification
Antioxidant
medicine.medical_treatment
Biochemistry (medical)
Clinical Biochemistry
Flavonoid
Extraction (chemistry)
04 agricultural and veterinary sciences
040401 food science
Biochemistry
Analytical Chemistry
chemistry.chemical_compound
Rutin
0404 agricultural biotechnology
Dry weight
chemistry
Oleuropein
Electrochemistry
medicine
Composition (visual arts)
Gallic acid
Food science
Spectroscopy
Subjects
Details
- ISSN :
- 1532236X and 00032719
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Analytical Letters
- Accession number :
- edsair.doi...........1bb58a6bcbee4dfb1a07384fae989561