PENENTUAN KADAR FENOL TOTAL DAUN KATUK ( Breynia androgyna ) PADA BERBAGAI METODE PENGERINGAN YANG BERBEDA

Abstract

Katuk leaves are a type of annual plant that at any time can be picked and not depending on the season, can work as antioxidants indicated by the presence of phenol group compounds. In general phenol compounds have bacteroid, antiemetic, anthelmintic, anti-asthmatic, analgetic, anti-inflammatory, increase intestinal mortality, antimicrobial, and many more. Phenol compounds can be affected by temperature and radiation, the optimum drying temperature to get the maximum total phenol content was 60º C. The objective of this research was to find out the group of chemical compounds and the influence of temperature on the content of phenol compounds on the leaves of katukbreyniaandrogyna (L.) with different drying methods namely by drying under the sun, fan, oven and dryer. The presentation of katuk leaf samples was done by maceration using ethanol, macerate was glued with Rotary evaporator tools so that thick extracts were obtained. Phytochemical screening results of simplicial powder and katuk leaf ethanol extract showed that simplicial powder and katuk leaf ethanol extract contained alkaloid chemical compounds, flavonoids, tannins, polyphenols, and steroids/triterpenoids. The determination of total phenol levels was performed by UV-visible spectrophotometry using FolinCiocelteau reagents and a 7.5% sodium carbonate solution measured at a wavelength of 637 nm. The results of the research determined the total phenol content obtained the total level of oven drying phenols that was 19.24 ± 9.24 mg GAE / g Extract, on drying cabinet dryer 20.9 ± 6.45 mg GAE/g Extract, on fan drying 20.7 ± 4.83 mg GAE/g Extract, and on drying under sunlight 12.9 ± 3.22 mg GAE/g Extract. The highest phenol levels were found in fan drying, and the lowest phenol levels are found in drying in the sun.