Penelitian ini bertujuan untuk memanfaatkan limbah kulit ari kopi sebagai bahan pembuatan pellet ikan dan mengetahui cara pembuatan pellet dari kulit ari kopi dan untuk mengetahui kandungan gizi yang terdapat pada kulit ari kopi. Penelitian ini dilaksanakan di Laboratorium Pengolahan Pangan Fakultas Pertanian Universitas Katolik Santo Thomas, Medan. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) faktorial. Faktor pertama adalah perbandingan tepung kulit ari dengan sandi (K) yang terdiri dari 6 taraf : K0 =100% tepung kulit ari kopi, K1 = 90% tepung kulit ari kopi, dengan 10% tepung jagung, K2 = 80% tepung kulit ari kopi, dengan 20% tepung jagung, K3 = 70% tepung kulit ari kopi, dengan 30% tepung jagung, K4 = 60% tepung kulit ari kopi, dengan 40% tepung jagung, K5 = 50% tepung kulit ari kopi, dengan 50% tepung jagung. Faktor kedua adalah lama penyimpanan dengan sandi (L) yang terdiri dari 6 taraf perlakuan yaitu : L0 = 0 minggu, L1= 2 minggu, L2=4 minggu, L3=6 minggu, L4=8 minggu dan L5=10 minggu. Hasil penelitian menunjukkan bahwa perlakuan perbandingan tepung kulit ari kopi dengan tepung kedelai berpengaruh sangat nyata (p<0,01) terhadap kadar air, kadar abu, pH dan daya apung, tetapi berpengaruh tidak nyata terhadap kadar protein, kadar lemak dan kadar abu pakan ikan. Perlakuan lama penyimpanan berpengaruh sangat nyata (p<0,01) terhadap terhadap kadar air, kadar abu, kadar protein, kadar serat, kadar lemak, pH dan daya apung pakan ikan. Interaksi perlakuan perbandingan tepung kulit ari kopi dengan tepung kedelai dan lama penyimpanan berpengaruh tidak nyata (p>0,01) terhadap kadar air, kadar abu, kadar protein, kadar serat, kadar lemak, pH pakan ikan dan daya apung pakan ikan.
This study aims to determine the effect of packaging types and storage duration on the quality of andaliman powder. The study was conducted at the Laboratory of Processing and Management of Agricultural Products, Agricultural Product Technology Study Program, Faculty of Agriculture, Catholic University of St. Thomas Medan. This research was conducted using Factorial Complete Random Design method. The first factor is packaging with a password (K), consisting of 4 types, namely: K1 is Glass bottle, K2 is Plastic bottle, K3 is Flip plastic and K4 is Paper. The second factor is the storage time with L code which consists of four levels, namely: L0 is 0 weeks, L1 is 2 weeks, L2 is 4 weeks and L3 is 6 weeks. The results showed that the type of packaging had a very significant effect on water content, total acid, oleoresin content and organoleptic value, but it was not significant for ash content. The highest water content, ash content and total acid were found in paper plastic packaging, while the lowest was in glass bottle packaging, while the highest oleoresin content and highest organoleptic value were found in glass bottle packaging, while the lowest was on paper packaging. Storage time has a very significant effect on water content, total acid, oleoresin content and organoleptic value, but not significant to ash content. The longer the storage, the moisture content, ash content and total acid content increase, while the oleoresin content and organoleptic values decrease. The interaction between the type of packaging and storage duration gave no significant effect on water content, ash content, total acid, oleoresin content and organoleptic value. The best quality of andaliman powder is obtained in the type of glass bottles and plastic bottles which can be seen from the water content, oleoresin content and organoleptic value. Â
Penelitian ini bertujuan untuk merancang merancang minuman fungsional fruit tea nangka. Penelitian ini dilakukan di Laboratorium Pengolahan dan Pengelolaan Hasil Pertanian Universitas Katolik Santo Thomas Medan. Metode penelitian ini dilakukan dengan metode penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) Faktorial dengan 2 (dua) faktor yang terdiri dari : Faktor I :Konsentrasi Sari Buah Nangka yang terdiri 5 taraf perlakuan C0:5 %; C1:10%; C2:15% ;C3:20%;C4:25% dan C5:30%. Faktor II: Lama Penyimpanan yang terdiri 5 taraf perlakuan L0:0 hari; L1:14 hari; L2 :28 hari, L3 : 42 hari, dan L4 : 56 hari. Hasil penelitian menunjukkan konsentrasi sari buah nangka memberi pengaruh yang berbeda sangat nyata terhadap total soluble solid, kadar vitamin C, total asam, nilai organoleptic, kadar kalsium dan pH. Semakin tinggi konsentrasi sari buah nangka, total soluble solid, kadar vitamin C, total asam, nilai organoleptic dan pH semakin meningkat sedangkan kadar kalsium menurun. Lama penyimpanan memberi pengaruh yang berbeda sangat nyata terhadap total soluble solid, kadar vitamin C, total asam, nilai organoleptic, kadar kalsium dan pH. Semakin lama penyimpanan total soluble solid, kadar vitamin C, nilai organoleptic, kadar kalsium dan pH semakin menurun, sedangkan total asam semakin meningkat. Dilihat dari kadar vitamin C, total soluble solid, total asam, kadar kalsium dan nilai organoleptik maka mutu terbaik fruit tea nangka diperoleh dengan konsentrasi sari buah nangka 30% dengan lama penyimpanan 42 hari.
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