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All Journal Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Ilmiah Teknologi Pertanian Agrotechno
Tuti Tutuarima
Jurusan Teknologi Pertanian, Fakultas Pertanian, Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

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SIFAT FISIK DAN KIMIA MARMALADE JERUK KALAMANSI (Citrus microcarpa) : KAJIAN KONSENTRASI PEKTIN DAN SUKROSA Physical and Chemical Properties of Marmalade Citrus of Calamondin (Citrus microcarpa) : Study of Pectin and Sucrose Concentrations Tuti Tutuarima
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 18 No. 02 (2017): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.991 KB) | DOI: 10.24036/eksakta/vol18-iss02/73

Abstract

The purpose of this study was to determine the effect of pectin and sucrose on the physical and chemical properties of marmalade citrus of calamondin and get the best treatment combination on making marmalade made from calamondin. This study used Randomized Block Design with 2 different factors. The first factor is the addition of pectin that is the level 1.75%, 2%, and 2.25%. While the second factor is the concentration of sucrose is 75%, 85%, and 95%. Each treatment was repeated 3 times to obtain 27 units of experiment. The process of making marmalade using heating time for 20 minutes at 70oC. The analyzes include viscosity, ability to spread of jam, moisture content, pH, and total dissolved solids. The analysis was conducted at Agricultural Technology Laboratory of Bengkulu University. The results showed that marmalade with the use of pectin 2.25% and 95% sucrose resulted the optimal in viscosity, ability to spread of jam, and total dissolved solids. For the results of moisture content and optimal pH obtained at the use of pectin 1.75% and 75% sucrose.
Optimasi Proses Maserasi Hasil Samping Industri Sirup Jeruk Kalamansi (Citrofortunella microcarpa) Tuti Tutuarima; Kurnia Harlina Dewi; Novita Sinambela
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol. 3 No. 2 (2018): Oktober
Publisher : Fakultas Teknologi Pertanian, Universitas Udayana Gedung GA, Fakultas Teknologi Pertanian, Universitas Udayana Jl. Raya Bukit Jimbaran, Jimbaran, Kuta Selatan, Bali Telp/Fax: (0361) 701801

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2018.v03.i02.p07

Abstract

Jeruk Kalamansi (Citrofortunella microcarpa) merupakan salah satu komoditi unggulan Provinsi Bengkulu yang diolah menjadi sirup. Hasil samping industri sirup jeruk kalamansi berupa kulit, pulp, biji, dan cairan hasil pengendapan. Hasil samping ini berpotensi mengandung senyawa aktif berupa concrete, oleoresin dan atau minyak atsiri. Penelitian ini bertujuan untuk mendapatkan kondisi proses maserasi optimum dalam produksi concrete dari hasil samping industri sirup jeruk kalamansi yang berbentuk padatan (kulit dan pulp). Variabel yang digunakan pada penelitian ini adalah lama maserasi (6, 12, dan 24 jam) dan rasio antara berat bahan dan volume pelarut (1:1, 1:2, dan 1:3). Pelarut yang digunakan adalah etanol 96%. Respon yang diharapkan pada penelitian ini adalah rendemennya. Pengolahan data menggunakan metode respon permukaan pada software Minitab 16. Berdasarkan analisa varian diketahui bahwa efek linear lebih signifikan dibandingkan efek kuadratik, sehingga persamaan optimasi yang didapat adalah Y = 25,1667 + 6,1167 X1 + 1,2397 X2. Titik optimum belum tercapai. Rendemen maksimum diperoleh sebesar 54,6823 %, didapatkan pada lama maserasi 24 jam dan rasio berat bahan dan volume pelarut 1:1,75. Karakteristik mutu concrete kulit & pulp jeruk kalamansi yaitu berat jenis 0,985, bilangan asam 1,838, dan indeks bias 1,354.
Co-Authors Kurnia Harlina Dewi Novita Sinambela