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All Journal Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Ekliptika: Jurnal Inovasi Teknologi Berkelanjutan
Pinctada Putri Pamungkas
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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PENDUGAAN UMUR SIMPAN SELAI BUNGA ROSELLA (Hibiscus sabdariffa) DAN JAHE MENGGUNAKAN METODE ACCELERATED SHELF LIFE TESTING (ASLT) Pinctada Putri Pamungkas; Rokhmad Nur Saifudin
Ekliptika Vol. 4 No. 1 (2023): Terbitan Juli 2023
Publisher : Universitas Nahdlatul Ulama Pasuruan, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55757/ekliptika.v4i1.267

Abstract

Selai merupakan olahan atau produk makanan semi padat dengan pengolahan buah yang dihancurkan menjadi bubur buah dan dicampur dengan gula serta bahan tambahan lain, lalu dimasak hingga kental. Bunga rosella merupakan tanaman tropis yang sudah banyak dikenal dan dimanfaatkan diberbagai negara termasuk di Indonesia. Belum banyaknya informasi mengenai umur simpan produk selai bungan rosella menjadi tujuan dari penelitian ini, guna menentukan laju perubahan mutu, menentukan parameter kritis dari segi organoleptik, dan menduga umur simpan selai bunga Rosella dengan metode akselerasi (Arrhenius). Selai Bunga Rosella dengan konsentrasi jahe 0g, N2 5g, N3 10g, N4 15g dan N5 20g, akan diuji umur simpan selama 31 hari. Parameter yang diamati selama proses penyimpanan adalah pH, warna, tekstur, aroma, rasa dan total padatan terlarut. Penolakan dari panelis terjadi pada parameter rasa dan aroma. Hasil menunjukkan dugaan umur simpan selai Rosella dengan jahe adalah 2 bulan pada suhu ruang yaitu 24°C.
Aktivitas Antioksidan dan Profil Senyawa Bioaktif Rumput Laut Sargassum sp. Jihan Novitasari; Abd. Rohim; Maylina Ilhami Khurniyati; Pinctada Putri Pamungkas; Elsa Yuliana
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 8 (2025): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

Indonesia as a maritime country has abundant marine biological resources, including brown algae Sargassum sp. This study aims to explore the antioxidant capacity and characteristics of bioactive compounds from methanol extract of brown algae Sargassum sp. taken from Kondang Merak Beach, Malang Regency. The maceration method was chosen for the extraction process using various times (20, 40, and 60 minutes) and the ratio of seaweed powder to solvent (1:10, 1:20, and 1:30 g/ml). Antioxidant activity was analyzed using the DPPH method, while total phenolic and flavonoid contents were determined using the Folin–Ciocalteu method and spectrophotometry. Identification of bioactive compounds of Sargassum sp. was tested using Liquid Chromatography–High Resolution Mass Spectrometry (LC-HRMS), which allows more accurate and comprehensive detection of compounds. The results revealed that treatment with a time of 60 minutes and a solvent ratio of 1:30 produced the best antioxidant capacity with an IC₅₀ value of 4.71 mg/ml, a total phenolic content of 1.31 mg GAE/g, and a total flavonoid content of 8.80 mg QE/g. LC-HRMS analysis revealed various bioactive compounds including unsaturated fatty acids, flavonoids, terpenoids, and carotenoids, such as α-eleostearic acid, eicosapentaenoic acid, tangeritin, nobiletin, curcumin, and astaxanthin. The presence of these compounds plays an important role in explaining the high antioxidant capacity of Sargassum sp. extract. Therefore, brown algae Sargassum sp. has potential as a natural source of antioxidant compounds for functional food, pharmaceutical, and cosmetic applications.
Co-Authors Abd. Rohim Elsa Yuliana Jihan Novitasari Maylina Ilhami Khurniyati Rokhmad Nur Saifudin