OPTIMASI DAN KARAKTERISASI NANOSTRUCTURED LIPID CARRIER DARI L-DOPA-ASAM STEARAT-MINYAK KEDELAI (NLC-DSS) SEBAGAI KANDIDAT OBAT PARKINSON

    Lisna Yulianti, - (2024) OPTIMASI DAN KARAKTERISASI NANOSTRUCTURED LIPID CARRIER DARI L-DOPA-ASAM STEARAT-MINYAK KEDELAI (NLC-DSS) SEBAGAI KANDIDAT OBAT PARKINSON. S1 thesis, Universitas Pendidikan Indonesia.

    Abstract

    Pengobatan penyakit parkinson saat ini dilakukan dengan menggunakan L-Dopa sebagai
    prekursor dopamin. Namun, bioavailabilitas dan stabilitas L-Dopa yang rendah, maka
    diperlukan sistem penghantaran obat menggunakan Nanostructured lipid carrier (NLC).
    Tujuan dari penelitian ini adalah memperoleh formulasi optimum, karakteristik, nilai
    entrapment efficiency, dan profil drug release dari NLC yang mengandung L-Dopa
    berbasis asam stearat dan minyak kedelai (NLC-DSS) dengan surfaktan tween 80.
    Metode yang digunakan dalam pembuatan NLC-DSS menggunakan homogenisasi panas
    dan ultrasonikasi dengan variabel perbandingan lipid, konsentrasi surfaktan, dan waktu
    ultrasonikasi. Karakterisasi produk meliputi penentuan ukuran partikel, indeks
    polidispersitas dan zeta potensial menggunakan PSA, morfologi partikel menggunakan
    TEM, dan FTIR untuk analisis gugus fungsi. Penentuan entrapment efficiency dan drug
    release menggunakan instrumen spektrofotometer UV-Vis. Hasil penelitian menunjukkan
    bahwa kondisi optimum dari pembuatan NLC-DSS terdapat pada formulasi perbandingan
    asam stearat terhadap minyak kedelai sebesar 1:9 dengan konsentrasi surfaktan 2,5% dan
    waktu ultrasonikasi selama 50 menit. Produk NLC-DSS yang diperoleh memiliki ukuran
    partikel rata rata sebesar 60,75 nm dengan indeks polidispersitas 0,45 dan zeta potensial -
    30,2 mV. Karakterisasi FTIR menunjukkan terjadinya pergeseran puncak serapan pada
    gugus –OH, C=O dan –NH yang mengindikasikan terjadinya interaksi antara L-Dopa dan
    matriks lipid. Morfologi partikel dari produk NLC berbentuk spherical dengan ukuran
    kisaran 61,05 nm. Persentase entrapment efficiency sebesar 72,19%. Profil drug release
    NLC-DSS kondisi pH 1,2 dan 7,4 mengikuti model kinetika orde nol yang menunjukkan
    pelepasan L-Dopa secara lambat dan terkontrol hingga 6 jam dan mencapai 46,28% dan
    66,81% setelah 16 jam. Berdasarkan hasil yang diperoleh, maka produk NLC-DSS
    berpotensi sebagai kandidat obat penyakit parkinson.

    Parkinson's disease treatment is currently carried out using L-Dopa as a dopamine
    precursor. However, the bioavailability and stability of L-Dopa are low, so a drug
    delivery system using Nanostructured lipid carrier (NLC) is needed. The purpose of this
    study was to obtain the optimum formulation, characteristics, entrapment efficiency
    value, and drug release profile of NLC containing L-Dopa based on stearic acid and
    soybean oil (NLC-DSS) with tween 80 surfactant. The method used in the preparation of
    NLC-DSS was heat homogenization and ultrasonication with variable lipid ratio,
    surfactant concentration, and ultrasonication time. Product characterization included
    determination of particle size, polydispersity index and zeta potential using PSA, particle
    morphology using TEM, and FTIR for functional group analysis. Determination of
    entrapment efficiency and drug release using UV-Vis spectrophotometer instrument. The
    results showed that the optimum conditions for the preparation of NLC-DSS were found
    in the formulation of stearic acid to soybean oil ratio of 1:9 with surfactant concentration
    of 2.5% and ultrasonication time of 50 minutes. The NLC-DSS product obtained had an
    average particle size of 60.75 nm with a polydispersity index of 0.45 and zeta potential of
    -30.2 mV. FTIR characterization showed a shift in the absorption peaks of –OH, C=O
    and -NH groups indicating the interaction between L-Dopa and the lipid matrix. The
    particle morphology of the NLC product was spherical with a size range of 61,05 nm. The
    entrapment efficiency percentage was 72.19%. The drug release profile of NLC-DSS at
    pH 1.2 and 7.4 followed a zero-order kinetics model showing a slow and controlled
    release of L-Dopa up to 6 hours and reached 46.28% and 66.81% after 16 hours. Based
    on the results obtained, the NLC-DSS product has potential as a drug candidate for
    Parkinson's disease.

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    Official URL: https://repository.upi.edu/
    Item Type: Thesis (S1)
    Additional Information: https://scholar.google.com/citations?hl=en&user=BycxR04AAAAJ SINTA ID : 5979503 SINTA ID : 5984423
    Uncontrolled Keywords: Parkinson, Nanostructured lipid carrier, L-Dopa, Asam Stearat, Minyak Kedelai Parkinson's disease, Stearic acid, Soybean oil
    Subjects: L Education > L Education (General)
    Q Science > QD Chemistry
    Divisions: Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Kimia - S1 > Program Studi Kimia (non kependidikan)
    Depositing User: Lisna Yulianti
    Date Deposited: 13 Sep 2024 09:50
    Last Modified: 13 Sep 2024 09:50
    URI: http://repository.upi.edu/id/eprint/124650

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