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All Journal AGRIVITA, Journal of Agricultural Science Journal of Food Engineering
Jaenuri, Ahmad
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Eksplorasi Pengaruh Pewarna Alami Kulit Buah Naga Merah terhadap Kualitas Kerupuk Ikan Lemuru (Sardinella sp.): Exploration of the Effect of Natural Colouring from Red Dragon Fruit Peel on the Quality of Lemuru Fish Crackers (Sardinella sp.) Jaenuri, Ahmad; Brilliantina, Aulia; Kurnianto, Mokhamad Fatoni; Mardiyanto, Mohammad
Journal of Food Engineering Vol. 4 No. 3 (2025): July
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jofe.v4i3.6059

Abstract

Penelitian ini bertujuan untuk mengevaluasi pengaruh penambahan ekstrak kulit buah naga merah (Hylocereus polyrhizus) terhadap karakteristik sensorik, komposisi kimia, dan aktivitas antioksidan kerupuk ikan lemuru. Empat formulasi diuji dengan konsentrasi ekstrak 0 %, 10 %, 20 %, dan 30 %. Parameter sensorik meliputi uji hedonik terhadap warna, rasa, tekstur, dan aroma, sementara parameter kimia mencakup kadar air, abu, protein, lemak, serta aktivitas antioksidan menggunakan metode DPPH. Hasil menunjukkan bahwa penambahan ekstrak kulit buah naga secara signifikan meningkatkan skor warna dan rasa (p<0,05), dengan skor tertinggi pada konsentrasi 30 %. Kadar air dan abu meningkat seiring peningkatan konsentrasi ekstrak, mencerminkan sifat higroskopis dan kandungan mineral dari kulit buah naga. Sebaliknya, kadar protein mengalami penurunan pada konsentrasi tertinggi, sedangkan kadar lemak tidak menunjukkan perubahan yang signifikan. Aktivitas antioksidan meningkat secara signifikan, dari 20,03 % menjadi 47,17 %, menunjukkan kontribusi senyawa fenolik dan betalain dalam menetralkan radikal bebas. Hasil ini menunjukkan bahwa ekstrak kulit buah naga merah berpotensi sebagai bahan tambahan fungsional pada produk pangan berbasis ikan, meningkatkan kualitas visual, sensorik, dan aktivitas antioksidan tanpa mengorbankan mutu dasar produk.
Optimization of Somatic Embryogenesis Formation in Hoya (Hoya carnosa (L.) R. Br.) with Different Hormone Combinations Restanto, Didik Pudji; Prayoga, Mohammad Candra; Jaenuri, Ahmad; Avivi, Sholeh; Soeparjono, Sigit; Selopa, Tanaya Asmara Citra; Ullah, Rehan; Alfarisy, Fariz Kustiawan
AGRIVITA Journal of Agricultural Science Vol 48, No 2 (2026): IN PRESS
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i0.4844

Abstract

Hoya carnosa (L.) R. Br. propagation is conventionally less efficient, and the amount produced is low. This study aims to determine the influence of hormone type and concentration on changes in cell structure and the phase of somatic embryogenesis of the Hoya plant in vitro. The study was conducted in two stages, namely the first stage of callus induction with a combination of BAP (0.4 mg/l, 0.5 mg/l, 0.6 mg/l) and 2,4-D (5 mg/l, 6 mg/l, 7 mg/l) and the second stage of somatic embryogenesis with a combination of BAP hormones (0.5 mg/l, 1.0 mg/l, 1.5 mg/l) and IBA (0.25 mg/l, 0.5 mg/l, and 0.75 mg/l). The data were analyzed using ANOVA and further analyzed by using DMRT. Based on the results, the combination of BAP 0.4 mg/l and 2,4-D 7 mg/l hormones showed the best growth with the parameters of the appearance of callus at 23 days, callus weight 2.92 g, and embryogenic calluses formed with crumb texture and greenish-yellow color. The combination of BAP 1 mg/l and IBA 0.75 mg/l resulted in the frequency of budding emergence of 23.3 days and the number of tendrils 20.7. This treatment was able to produce 5 roots and 2 shoots.
Co-Authors Alfarisy, Fariz Kustiawan Brilliantina, Aulia Kurnianto, Mokhamad Fatoni Mardiyanto, Mohammad Prayoga, Mohammad Candra Restanto, Didik Pudji Selopa, Tanaya Asmara Citra Sholeh Avivi Sigit Soeparjono Ullah, Rehan