STRUCTURAL ANALYSIS OF SPRAY-DRIED COCONUT SHELL LIQUID SMOKE POWDER

  • Saloko S
  • Darmadji P
  • et al.
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Abstract

The research was aimed at determining spray drying conditions during the production of smoke particulate powder and its consequences on the physical properties of the product. The experiment was carried out using a complete randomized factorial design. Samples were three solution of chitosan (CS)-maltodextrin (MD) based nanoparticles i.e. CS (0.5% w/v) and MD (9.5% w/v) in acetic acid (1.0% v/v) without liquid smoke (F1), only MD (10% w/v) in liquid smoke (F2) and a mixture of CS (1.5% w/v) and MD (8.5% w/v) in liquid smoke (F5). Each sample solution was prepared at 10% solid contents with addition of 1.0% sodium tripolyphosphate. The experimental factors were inlet air temperatures (T) of 130°C (T1) and 150°C (T2) and feed flow rate (L) of 2.4 mL/minute (L1) and 5.1 mL/minute (L2). The parameters evaluated included bulk density, yield, moisture content, water activity, morphology and particle size. Results showed that the average particle sizes decreased when the inlet air temperature increased. The bulk density, moisture content and water activity of powders tended to decrease with the increase of inlet air temperature. In contrast, the powder yield increased with increasing of inlet air temperature. Furthermore, characteristics of the powder particulates were spherical with smooth surfaces for all treatments but when the inlet air temperatures was high the particles has deeper surfacial grooving and shriveled, especially for sample F1. ABSTRAK Penelitian ini bertujuan untuk menentukan kondisi pengeringan semprot selama produksi partikel bubuk asap cair termasuk sifat-sifat fisiknya. Percobaan dilakukan dengan menggunakan rancangan acak lengkap faktorial. Sampel terdiri dari tiga larutan berbasis nanopartikel kitosan (CS)-maltodekstrin (MD) yaitu pertama CS (0,5% b/v) dan MD (9,5% b/v) dalam asam asetat (1,0% v/v) tanpa asap cair (F1), kedua hanya MD (10% b/v) dalam asap cair (F2), dan ketiga campuran CS (1,5% b/v) dan MD (8,5% b/v) dalam asap cair (F5). Setiap larutan sampel dengan total padatan 10% ditambahkan natrium tripolifosfat 1,0%. Faktor penelitian adalah suhu udara masuk (T) terdiri dari 2 tingkat (T1 = 130°C dan T2 = 150°C) dan kecepatan aliran umpan (L) terdiri dari 2 tingkat (L1 = 2,4 mL/menit dan L2 = 5,1 mL/menit). Parameter penelitian meliputi bulk density, rendemen, kadar air, aktivitas air, morfologi dan ukuran partikel. Hasil penelitian menunjukkan bahwa ukuran rata-rata partikel menurun ketika suhu udara masuk meningkat. Bulk density, kadar air dan aktivitas air dari bubuk cenderung menurun dengan meningkatnya temperatur udara masuk. Sebaliknya, hasil bubuk meningkat dengan meningkatnya temperatur udara masuk. Selain itu, karakteristik partikel bubuk berbentuk bulat dengan permukaan halus untuk semua perlakuan, tetapi ketika suhu udara masuk semakin tinggi maka permukaan bubuk lekuk dan keriput terutama untuk sampel F1. Kata kunci: kitosan, bubuk asap cair tempurung kelapa, maltodekstrin, partikelnano, pengeringan semprot INTRODUCTION1

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APA

Saloko, S., Darmadji, P., Setiaji, B., & Pranoto, Y. (2012). STRUCTURAL ANALYSIS OF SPRAY-DRIED COCONUT SHELL LIQUID SMOKE POWDER. Jurnal Teknologi Dan Industri Pangan, 23(2), 173–178. https://doi.org/10.6066/jtip.2012.23.2.173

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