Sintesis nanopartikel seng oksida (ZnO) menggunakan ekstrak kayu secang (Caesalpinia sappan L.) = synthesis of zinc oxide nanoparticles using sappan wood (Caesalpinia sappan L.) extract

Chandra, Magdalena Ruvina (2018) Sintesis nanopartikel seng oksida (ZnO) menggunakan ekstrak kayu secang (Caesalpinia sappan L.) = synthesis of zinc oxide nanoparticles using sappan wood (Caesalpinia sappan L.) extract. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Green synthesis merupakan metode yang menggunakan senyawa fitokimia dari ekstrak tumbuhan sebagai sarana untuk memperkecil ukuran dari partikel. Kayu secang yang digunakan dalam penelitian ini memiliki kandungan fitokimia seperti senyawa fenolik dan flavonoid. Tujuan dari penelitian ini adalah untuk pemanfaatan kayu secang dalam sintesis nanopartikel ZnO. Sintesis nanopartikel ZnO dilakukan dengan mencampur seng asetat dan ekstrak kayu secang dengan berat 0.25, 0.5 dan 0.75 gram, temperatur 75 – 80 oC, dan pH 8, kemudian dikalsinasi dengan suhu berbeda (100, 300 dan 500 oC). Nilai IC50 dari ekstrak kayu secang adalah 23.16 ppm, total kandungan fenolik 563.93 mg GAE/g, dan total kandungan flavonoid 51.08 mg QE/g. Perlakuan yang paling optimal untuk aktivitas antibakteri adalah pada berat ekstrak 0.5 gram dan suhu kalsinasi 100oC dengan zona hambat pada bakteri Staphylococcus aureus sebesar 16.100.46 mm dan Escherichia coli sebesar 160.64 mm. Ukuran dan morfologi dari nanopartikel ZnO dianalisis dengan PSA dan SEM yang menunjukkan hasil yaitu 976.05 nm. / Green synthesis is a method that use phytochemical compound from plant extract as a tools to reduce particle size. Sappan wood used in this study that have some phytochemical content such as phenolic and flavonoids compound. The aim of this study was to utilize sappan wood in the making of ZnO nanoparticle. Synthesis of nanoparticles is done by mixing zinc acetate with sappan wood extract using 0.25, 0.5, and 0.75 gram weight of extract, temperature of 75 – 80 oC and pH that adjusted in 8, then the calcination of ZnO nanoparticles done at different temperature (100oC, 300oC, 500oC). Sappan wood extract has IC50 of 23.16 ppm, total phenolic content of 563.93 mg GAE/g, and total flavonoid content of 51.08 mg QE/g. The optimal treatment for antibacterial activity is the weight of 0.5 gram extract and calcinated at 100oC with inhibitory zone for Staphylococcus aureus is 16.100.46 mm and Escherichia coli is 160.64 mm. ZnO nanoparticle size and morphology is analyzed with PSA and SEM that resulted size of 976.05 nm.

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Chandra, Magdalena RuvinaNIM00000005182ruvinachandra@ymail.com
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorSiregar, Tagor M.NIDN0304016902UNSPECIFIED
Additional Information: SK 34-14 CHA s 2018; 31001000238197
Uncontrolled Keywords: antibacterial; calcination; green synthesis; sappan wood extract; ZnO nanoparticles
Subjects: T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Depositing User: Samuel Noya
Date Deposited: 01 Oct 2021 05:17
Last Modified: 01 Oct 2021 05:17
URI: http://repository.uph.edu/id/eprint/42631

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