Rachmawati, Siti Hanggita
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FORMULATION FLAKES CEREAL OF LOTUS (Nelumbo nucifera) AND SEAWEED (Eucheumma cottoni) AS FUNCTIONAL FOOD Ridhowati, Sherly; Rohmania, Ainur; Rinto, Rinto; Nugroho, Gama Dian; Pitayati, Puspa Ayu; Rachmawati, Siti Hanggita; Baehaki, Ace; Pangawikan, Aldila Din
Jurnal Perikanan Unram Vol 15 No 3 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i3.837

Abstract

Penelitian ini bertujuan untuk mengetahui formulasi sereal flakes dari komposisi tepung biji lotus (Nelumbo nucifera) dan rumput laut (Eucheumma cottoni) sebagai pangan fungsional. Penelitian ini dilaksanakan dalam percobaan laboratorium menggunakan metode Rancangan Acak Lengkap (RAL) dengan 4 perlakuan (100% tapioka; 50% tapioka, 20% teratai, 30% rumput laut; 20% tapioka, 30% teratai, 50% rumput laut, dan 30% tapioka, 50% teratai, 20% rumput laut) dengan 3 ulangan. Parameter terdiri dari analisis kimia (kadar air, abu, lemak, protein, karbohidrat, dan serat kasar), fisik (daya serap air dan indeks kelarutan), dan sensori. Hasil penelitian menunjukkan bahwa kadar air (3.13% - 3.61%), abu (1.03% - 8.25%), lemak (8.38% - 9.19%), protein (1.45% - 10.96%), karbohidrat (67.69% - 86.71%) , serat kasar (1.08% - 5.73%). Untuk indeks penyerapan air berkisar antara 11 g/g hingga 5.07 g/g. dan tingkat indeks kelarutan air berkisar dari 0.017g/mL hingga 0.057g/mL. Sedangkan analisis sensori menunjukkan pengaruh yang nyata terhadap nilai aroma dan warna, namun tidak berpengaruh nyata terhadap nilai rasa dan tekstur
Comparative Study of Thermal Effects on Protein-Enriched Cassava Starch with Snakehead Fish and Mackerel Proteins Supriadi, Agus; Rachmawati, Siti Hanggita; Ridhowati, Sherly; Nugroho, Gama Dian; Saputra, Daniel
Journal of Applied Agricultural Science and Technology Vol. 9 No. 4 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i4.356

Abstract

Cassava-starch composites enriched with fish proteins offer a means to tailor texture and moisture management during thermal processing. We evaluated ten formulations (P1–P10) with varying proportions of snakehead fish and mackerel proteins and measured expansion, water absorption, color (ΔE*), and density. Expansion peaked at low protein ratios and subsequently declined: mackerel P2 reached 4.38 ± 0.96%, snakehead P1 reached 4.08 ± 1.40%, and both decreasing to 0.8% at P10. Water absorption also decreased with increasing protein, from 14.04 ± 0.93% (mackerel P1) and 11.67 ± 1.36% (snakehead P1) to 5.54 ± 2.16% and 4.10 ± 0.41% at P10, respectively. The water-absorption-expansion relationship was non-linear and best described by second-order polynomials (Snakehead: y = 0.0764x² − 0.8101x + 2.9686; R² = 0.978 and Mackerel: y = 0.0975x² − 1.4896x + 6.1685; R² = 0.960), indicating diminishing expansion gains at higher absorption. Apparent (saturated) density increased during soaking and plateaued at ~150 min; lower-protein formulations exhibited higher saturated density due to greater water uptake. Collectively, these results show that choosing the protein type and ratio enables targeted control of expansion, hydration, and density—mackerel favoring higher expansion at lower absorption, and snakehead providing a more gradual, controllable response—offering practical levers for designing fish-protein–starch products with desired textures.