AKTIVITAS ANTIOKSIDAN NANOPARTIKEL SENG OKSIDA PADA DAUN DAN BUAH PIRDOT (Saurauia vulcani Korth.) [ANTIOXIDANT ACTIVITY OF ZINC OXIDE NANOPARTICLES ON THE LEAVES AND FRUIT OF PIRDOT] (Saurauia vulcani Korth.)

Lukas Hotma Parulian Lumantobing, Ratna Handayani, Antonius Herry Cahyana

Abstract


One of the potential local sources of Indonesia for nanoparticle synthesis is pyrdot (Saurauia vulcani Korth.). This study aims to synthesize zinc oxide nanoparticles with pyrdot leaf and fruit extracts by maceration. Total phenolic testing using the Folin-Ciocalteau method, antioxidant activity using the DPPH method. Antioxidant activity with IC50 of 0.891 ± 0.045 (leaf ZnONPs), 2.181 ± 0.167 (leaf extract), 2.945 ± 0.009 (fruit ZnONPs), and 4.017 ± 0.277 (fruit extract) respectively. ZnoNPs were subjected to morphological testing using SEM and TEM methods as well as particle size testing with the general results that the nanoparticles obtained met the requirements as a nanoparticle in terms of particle size, with leaf ZnONPs generally having a smaller particle size than fruit, although morphologically they are generally irregular in shape.

Bahasa Indonesia Abstract:

Salah satu sumber lokal Indonesia yang potensial untuk sintesis nanopartikel adalah pirdot (Saurauia vulcani Korth.). Penelitian ini bertujuan untuk mensintesis nanopartikel seng oksida dengan ekstrak daun dan buah pirdot dengan maserasi. Pengujian total fenolik menggunakan metode Folin-Ciocalteau, aktivitas antioksidan menggunakan metode DPPH. Aktivitas antioksidan dengan IC50 masing-masing sebesar 0,891 ± 0,045 (ZnONPs daun), 2,181 ± 0,167 (ekstrak daun), 2,945 ± 0,009 (ZnONPs buah), dan 4,017 ± 0,277 (ekstrak buah). ZnoNPs dilakuan pengujian morforlogi dengan metode SEM dan TEM serta pengujian ukuran partikel dengan hasil secara umum bahwa nanopartikel yang didapat memenuhi syarat sebagai sebuah nanopartikel dalam hal ukuran partikel, dengan ZnONPs daun secara umum memiliki ukuran partikel lebih kecil dari buah, meskipun secara morfologi pada umumnya berbentuk tidak beraturan.



Keywords


antioxidant activities; Saurauia vulcani; zinc oxide nanoparticles



DOI: http://dx.doi.org/10.19166/jstfast.v8i2.8998

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