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Characterization and phytochemical compounds identification of yoghurt with the addition of carrageenan and Spirulina sp.: Karakterisasi dan identifikasi senyawa fitokimia yoghurt dengan penambahan karagenan dan Spirulina sp. Khairul, Fitriah; Desniar, Desniar; Nguyen, Tien-Thanh; Tarman, Kustiariyah
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 28 No. 9 (2025): Jurnal Pengolahan Hasil Perikanan Indonesia 28(9)
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: 10.17844/0nwq6422

Abstract

Yoghurt merupakan produk fermentasi susu dengan bakteri asam laktat misalnya Lactobacillus bulgaricus dan Streptococcus thermophilus. Karagenan ditambahkan sebagai stabilizer yang dapat memperbaiki tekstur dan kestabilan yoghurt, sedangkan Spirulina sp. kaya akan senyawa bioaktif, yaitu protein, asam amino, dan antioksidan yang berpotensi meningkatkan nilai gizi dan aktivitas fungsional yoghurt. Penelitian ini bertujuan untuk menentukan formulasi karaginan dan Spirulina sp. pada yoghurt berdasarkan karakteristik fisikokimia. Penelitian menggunakan rancangan acak lengkap (RAL) dengan empat perlakuan (karagenan + Spirulina sp.)  yaitu P0 (0,00% + 0,00%); P1 (0,01% + 0,03%); P2 (0,03% + 0,05%); dan P3 (0,05% + 0,07%) dilakukan tiga kali ulangan. Hasil analisis menunjukkan perlakuan terbaik, yaitu yoghurt 0,05% karagenan + 0,07% Spirulina sp. dengan pH 4,0; TAT 0,9%; BAL 9,3 log CFU/mL; serta kandungan air tinggi (89,59%). Yoghurt mengandung abu (0,78%), lemak (0,94%), dan energi (43,22 Kcal/100 g) lebih rendah dibanding yoghurt komersial. Kandungan protein yoghurt ini 3,65%, sedangkan yoghurt komersial 3,63%. Yoghurt dengan penambahan karagenan dan Spirulina sp. memenuhi standar mutu yoghurt berdasarkan SNI 2981:2009. Identifikasi senyawa fitokimia menunjukkan adanya senyawa terpenoid, yang memiliki aktivitas antioksidan dan berperan dalam menangkal radikal bebas. Yoghurt ini berpotensi sebagai produk pangan fungsional rendah lemak dan energi untuk mendukung gaya hidup sehat.
PENGARUH METODE PENGERINGAN TERHADAP KANDUNGAN GIZI IKAN LAYANG (Decapterus sp) Lein, Marianus Ada; Tukan, Maria Magdalena Nona Motu; Khairul, Fitriah
JURNAL PERIKANAN TROPIS Vol 13, No 1 (2026)
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpt.v13i1.14962

Abstract

Scad fish (Decapterus sp) is a high-value pelagic fishery commodity in Indonesia, widely known for its abundance and high nutritional content. However, different drying methods can significantly affect its nutritional quality. This study aims to determine the effect of drying methods on the nutritional composition of Scad fish. The research employed a comparative study with two treatments: traditional sun-drying and oven-drying. The study was conducted in October 2024, with sample preparation carried out at the Larantuka Institute of Teacher Training and Technology, and nutritional analyses performed at the Feed Chemistry Laboratory of Nusa Cendana University, Kupang. The analyses were conducted using standard methods: gravimetric for moisture content, dry combustion for ash content, Soxhlet for fat content, Kjeldahl for protein content, and by-difference calculation for carbohydrate content. The results demonstrated that drying methods significantly affected moisture, ash, fat, protein, and carbohydrate content of the Scad fish. The oven-drying method yielded the best nutritional profile, with moisture content of 14.337%, ash content of 36.00%, fat content of 9.187%, protein content of 53.262%, and carbohydrate content of 1.551%.Keywords: Decapterus sp; gravimetri; kjeldahl; Oven; Soxhlet: Solar Thermal