Evaluasi Nilai Difusifitas Pelarut dan Konstanta Kecepatan Ekstraksi pada Isolasi Piperin Lada Hitam

Mega Mustikaningrum, Desty Arista, Retno Dwi Nyamiati, Dodi Eko Nanda

Sari


Evaluasi terhadap nilai difusivitas (DA), konstanta kecepatan ekstraksi (ka) dan konstanta kesetimbangan ekstraksi (K) khususnya pada ekstraksi piperin dari lada hitam menggunakan metode soxhlet belum dilakukan. Nilai difusivitas dan konstanta kecepatan ekstraksi yang ditemukan kemudian akan digunakan untuk scale up peralatan ekstraktor sehingga tidak memerlukan data yang terlalu banyak saat optimasi peralatan untuk desain komersil. Tujuan dari penelitian ini adalah guna pengajuan model matematis yang dirasa sesuai dengan data yang dihasilkan. Metode ekstraksi dilakukan dengan menggunakan soxhletasi dengan pelarut etanol 96 % sebanyak 6 sirkulasi dengan perbandingan massa lada hitam terhadap pelarut adalah 1:25. Analisis spektroskopi UV VIS digunakan untuk mengukur konsentrasi piperin pada sampel kinetika yang diambil setiap waktu pada panjang gelombang 375 nm. Variabel uji pada penelitian ini adalah perbedaan ukuran dari bubuk lada yang digunakan yaitu pada 40, 50 dan 60 mesh. Berdasarkan hasil yang didapatkan nilai dari ka secara berturut turut pada 40,50, dan 60 mesh sebesar 0,1878; 0,302; dan 0,650 m/menit. Nilai DA didapatkan 0,0045; 0,0055; 0,0060 m2 /menit dan nilai dari K didapatkan 0,900; 1,000 dan 1,000

Kata Kunci


Lada Hitam; Piperin; difusivitas ; soxhlet ; konstanta kecepatan esktraksi

Teks Lengkap:

PDF (English)

Referensi


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DOI: https://doi.org/10.31315/e.v20i2.8996

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Eksergi ISSN-p  1410-394X, ISSN-e 2460-8203 diterbitkan oleh Prodi Teknik Kimia Universitas Pembangunan Nasional "Veteran" Yogyakarta.

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