Effects of Drying Methods on the Antioxidant Properties of Piper betle Leaves.
Molecules
; 29(8)2024 Apr 12.
Article
in En
| MEDLINE
| ID: mdl-38675582
ABSTRACT
Piper betle leaf powder is increasingly utilised as a health supplement. In this study, P. betle leaves were subjected to four different drying methods:
convective air-drying, oven-drying, sun-drying, and no drying, with fresh leaves as control. Their antioxidant properties were then evaluated using colourimetric assays and GC-MS. Results showed that the sun-dried leaves had the highest (p < 0.05) total antioxidant capacity (66.23 ± 0.10 mg AAE/g), total polyphenol content (133.93 ± 3.76 mg GAE/g), total flavonoid content (81.25 ± 3.26 mg CE/g) and DPPH radical scavenging activity (56.48 ± 0.11%), and the lowest alkaloid content (45.684 ± 0.265 mg/gm). GC-MS analysis revealed that major constituents of aqueous extracts of fresh and sun-dried P. betle leaves were hydrazine 1,2-dimethyl-; ethyl aminomethylformimidate; glycerin; propanoic acid, 2-hydroxy-, methyl ester, (+/-)-; and 1,2-Cyclopentanedione. In conclusion, sun-dried leaves exhibited overall better antioxidant properties, and their aqueous extracts contained biologically active phytoconstituents that have uses in various fields.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Plant Extracts
/
Plant Leaves
/
Piper betle
/
Desiccation
/
Antioxidants
Language:
En
Journal:
Molecules
Journal subject:
BIOLOGIA
Year:
2024
Document type:
Article
Affiliation country:
Country of publication: