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All Journal Jurnal Sains dan Teknologi Pangan Jurnal Kolaboratif Sains Jurnal Teknologi dan Mutu Pangan
Pravitri, Kartika Gemma
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The Effect of Adding Watermelon Rind on the Physical and Sensory Characteristics of Durian Ice Cream Pravitri, Kartika Gemma; Komalasari, Husnita; Nalurita, Indah; Naufali, Muhammad Nizhar
Jurnal Sains dan Teknologi Pangan Vol 9, No 3 (2024):
Publisher : JURUSAN ILMU DAN TEKNOLOGI PANGAN, UNIVERSITAS HALU OLEO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jstp.v9i3.47771

Abstract

This study aims to determine the effect of adding watermelon rind waste on the physical quality of durian ice cream. The design used was a one-factor Randomized Block Design (RBD) with four treatments and three repetitions. The treatments involved different ratios of watermelon rind pulp: 0%, 10%, 20%, and 30%. The observation data were analyzed using a 5% level Analysis of Variance (ANOVA) with Co-Stat software. If there were significant differences, further tests were conducted using the Honest Significant Difference (HSD) test. The research results indicate that watermelon rind pulp in durian ice cream yielded significantly different results regarding overrun percentage, resistance, and sensory parameters including aroma, taste, and texture. The best results for ice cream with added watermelon rind were obtained from the 30% treatment, with a physical characteristic of 73.42% overrun and 20.14 minutes resistance. Durian ice cream with 30% added watermelon rind has sensory characteristics of a slightly watermelon albedo aroma, a somewhat soft texture, and a slightly astringent taste. Therefore, it can be concluded that the addition of watermelon rind waste affects the physical and sensory characteristics of ice cream.
Pengaruh Variasi Konsentrasi Gelatin Sapi dan Lama Penyimpanan Terhadap Karakteristik Fisikokimia Sirup Buah Duwet (Syzygium cumini): The Effect of Variations in Beef Gelatin Concentration and Storage Time on the Physicochemical Characteristics of Duwet Fruit Syrup (Syzygium cumini) Pravitri, Kartika Gemma; Komalasari, Husnita; Ni Wayan Putu Meikapasa
Jurnal Kolaboratif Sains Vol. 7 No. 8: Agustus 2024
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v7i8.5674

Abstract

Gelatin merupakan jenis molekul polipeptida dari protein kolagen yang menyusun bagian kulit serta tulang hewan. Kulit dan tulang sapi merupakan sumber bahan baku untuk memproduksi gelatin komersial karena mengandung kolagen yang tinggi hingga mencapai 89%. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh perbedaan konsentrasi gelatin sapi dan lama penyimpanan terhadap karakter fisikokimia sirup buah Duwet (syzygium cumini). Metode penelitian yang digunakan yaitu Rancangan Acak Lengkap (RAL) Faktorial yang terdiri dari 2 faktor yaitu konsentrasi gelatin dan lama penyimpanan. Kemudian hasil pengamatan dianalisis menggunakan ANOVA dan uji lanjut DMRT pada taraf nyata 5%. Hasil penelitian ini menunjukkan bahwa penambahan konsentrasi gelatin berpengaruh nyata terhadap viskositas, nilai pH, total padatan terlarut, dan warna sirup buah Duwet. Selain itu, lama penyimpanan juga berpengaruh nyata terhadap viskositas, nilai pH, total padatan terlarut, warna dan keadaan sirup buah Duwet. Perlakuan terbaik dihasilkan dari perlakuan penambahan gelatin sapi sebesar 8% dengan waktu penyimpanan 0 hari karena memiliki total padatan terlarut >30% sesuai dengan SNI. Selain itu perlakuan penyimpanan 0 hari juga memiliki keadaan sampel yang baik dari segi warna, kenampakan dan aroma.
Pendugaan Umur Simpan Saus Tomat Homemade Menggunakan Model Arrhenius pada Suhu Penyimpanan Berbeda Meikapasa, Ni Wayan Putu; Pravitri, Kartika Gemma; Arzani, Lalu Danu Prima
Jurnal Teknologi dan Mutu Pangan Vol 3 No 1 (2024): JTMP: Jurnal Teknologi dan Mutu Pangan
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/jtmp.v3i1.4058

Abstract

Homemade tomato sauce products have the advantage of having a composition that can be ensured to contain minimal harmful chemicals. However, like other processed products, of course, the product will experience a decrease in quality along with the length of storage time. This study aims to determine changes in the quality of tomato sauce produced on a home scale (homemade ketchup) during one month of storage at storage temperatures of 10oC, 250oC, and 350oC. The method used to predict shelf life is the Arrhenius calculation model, which observes changes in pH, aw, and Total Microbes. The findings showed that the pH of tomato sauce tended to decrease with the length of storage time. The number of microbes increased with the increasing temperature and length of storage. Meanwhile, temperature and length of storage did not affect water activity. However, aw tends to increase with the temperature and length of storage. The results of estimating the shelf life with the Arrhenius model based on the water activity (aw) parameter showed that the shelf life of the sauce was 151.75 days with a quality decline rate of 0.001068/day at a storage temperature of 10oC; 96.07 days with a quality decline rate of 0.001685/day at a storage temperature of 25oC and 72.6 days with a quality decline rate of 0.002227/day at a storage temperature of 35oC. The implications of this study indicate that storage at 10oC can extend the shelf life of both tomato sauce products, so producers and consumers need to consider the optimal storage temperature based on the results of this study.
Co-Authors Arzani, Lalu Danu Prima Komalasari, Husnita Muhammad Nizhar Naufali nalurita, indah Ni Wayan Putu Meikapasa PUTU MEIKAPASA, NI WAYAN