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Produk ini dibuat menggunakan formula standar yang terdiri atas fatty acid, natrium hidroksida (NaOH), natrium klorida (NaCl), dan etilendiamin tetraasetat (EDTA) dengan rasio soap noodledengan mutu yang sesuai standar konsumen, meliputi kadar alkali bebas sebesar 0,01 0,06%, kadar klorida 0,4 0,7%, dan kadar EDTA 0,1 0,15%. Soap noodlemerupakan bahan baku utama dalam industri sabun batang dan deterjen. Efisiensi komposisi bahan baku menjadi aspek penting dalam menekan harga pokok produksi dan meningkatkan daya saing industri. Penelitian ini bertujuan untuk menentukan komposisi optimal bahan baku yang tetap memenuhi standar mutu konsumen dengan nilai ekonomis terbaik menggunakan pendekatan Response Surface Methodology (RSM). Proses pembuatan dilakukan dengan mencampurkan fatty acid, NaOH, NaCl, dan EDTA berdasarkan rancangan RSM pada suhu 60°C, diikuti pengadukan selama delapan menit pada kecepatan 20 rpm, pendinginan hingga suhu kamar, analisis kualitas produk, serta perhitungan nilai ekonomis. Hasil evaluasi menunjukkan bahwa rasio komposisi fatty mampu memenuhi parameter mutu, tetapi juga memberikan keuntungan maksimal sebesar Rp104.432,00 per jam. Temuan ini diharapkan menjadi rujukan dalam pengembangan formulasi soap noodle yang efisien secara teknis maupun ekonomis.","\u003Cp>oap noodle (SN 8515) merupakan produk hasil pencetakan melalui plodder yang diproduksi di reaktor industri sabun milik PT Wilmar Nabati Indonesia. 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