Lailatussifa, RR Radipta
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Optimasi pembuatan garam Ulva lactuca menggunakan response surface methodology: Optimization production process of Ulva lactuca salt using response surface methodology Listyaningrum, Niken Prawesti; Khairunnisa, Anis; Cesrany, Mahaldika; Farida, Iftachul; Astiana, Ika; Utari, Siluh Putu Sri Dia; Niken Prawesti; Lailatussifa, RR Radipta; Kurniawati, Made Devi; Kusuma, Ni Kadek Sita Anyaniti; Murtiningsih, Ni Made Ayu Meylia
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 28 No. 2 (2025): Jurnal Pengolahan Hasil Perikanan Indonesia 28(2)
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v28i2.62123

Abstract

Rumput laut Ulva lactuca merupakan bahan baku potensial dalam pengembangan garam fungsional. Kendala yang dihadapi ialah rendemen yang masih rendah. Tujuan dari penelitian ini adalah menentukan kondisi proses optimum pada produksi garam U. lactuca berdasarkan persentase rendemen tertinggi, mutu kimia, dan sensori menggunakan metode Response Surface Methodology dengan desain Box-Behnken (BBD). Metode pembuatan garam rumput laut menggunakan tiga variabel dengan tiga tingkatan, yakni rasio penambahan tepung U. lactuca dan pelarut akuades (A = 1:5, 1:10, 1:15), waktu ekstraksi (B = 10, 15, dan 30 menit), dan suhu ekstraksi (C = 40, 55, dan 70oC). Kombinasi ketiga faktor tersebut menghasilkan 15 percobaan. Model persamaan diuji dengan analisis varian (ANOVA) dengan α = 0.05. Garam U. lactuca hasil optimasi diuji mutu kimia, cemaran logam berat, dan karakteristik sensori. Hasil penelitian menunjukkan bahwa perlakuan optimum dalam menghasilkan rendemen garam rumput laut tertinggi, yakni rasio tepung dan pelarut sebesar 1:13,5, waktu ekstraksi selama 12 menit, dan suhu ekstraksi 70oC. Perlakuan tersebut menghasilkan respons rendemen sebesar 31,81±1,63%, yang memiliki perbedaan 0,82% dibandingkan respons prediksi 31,55%. Garam U. lactuca yang dihasilkan memiliki kadar abu 59,970%, protein 3,586%, lemak 0,25%, karbohidrat 15,46%, dan air 10,49%, kadar NaCl 27,31%, yodium <0,35%, kadmium 0,07 mg/kg, merkuri <0,002 mg/kg, dan timbal 3,6 mg/kg. Nilai respons sensori garam U. lactuca untuk atribut warna butiran, warna larutan, rasa, aroma, mouthfeel, flavor, aftertaste, dan overall berkisar pada rentang 4,2±1,69 (agak tidak suka) hingga 4,8±1,21 (netral).
PHYSICOCHEMICAL AND HEDONIC CHARACTERISTICS OF MANGROVE TEA (SONNERATIA SP.) FORMULATED WITH FOUR TYPES OF SWEETENERS AND CONSUMER PREFERENCES Sumartini, Sumartini; Hasibuan, Nabila Syakirah; Hasibuan, Nirmala Efri; Soeharso, Agusta Putri Balqis Linda; lailatussifa, RR Radipta
Proceedings of The Vocational Seminar on Marine & Inland Fisheries Volume 3 Nomor 1 Tahun 2026
Publisher : Politeknik Kelautan dan Perikanan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/voc_seminar.v3i1.20741

Abstract

Mangrove tea (Sonneratia sp.) is a promising herbal beverage due to its high bioactive content; however, its acceptance remains limited because of its astringent taste and distinctive mangrove aroma. This study aimed to analyze the effects of four types of sweeteners white sugar, palm sugar, coconut sugar, and honey on the physicochemical characteristics and consumer acceptance of mangrove tea, as well as to determine the best treatment. The research was conducted using a formulation of 3 g of mangrove leaf powder infused in 200 mL of water with sweeteners added according to each treatment, followed by measurements of pH, color (L, a, b*), viscosity, total titratable acidity, total sugar, and a hedonic test involving 30 untrained panelists. The results showed that honey had the greatest influence on the physicochemical attributes, indicated by the lowest pH (6.62), highest viscosity (1.32 mPa·s), and the darkest color with increased a* and b* values. Palm sugar and coconut sugar produced caramel-like color characteristics due to maillard components, whereas white sugar displayed the most neutral profile across all parameters. The hedonic evaluation revealed that palm sugar received the highest scores for taste, color, appearance, aroma, and overall liking, while white sugar obtained the lowest. Therefore, it can be concluded that the type of sweetener significantly affects the physical quality and consumer preference of mangrove tea, and the best treatment to enhance its sensory quality is the use of palm sugar.