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Analisis Komposisi Hasil Tangkapan Bagan Perahu Dan Tancap Di Perairan Teluk Kupang Surbakti, Joi Alfreddi; Sir, Rikka Welhelmina
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v10i1.28725

Abstract

Salah satu masalah yang dihadapi dalam pemanfaatan sumberdaya ikan adalah kurang selektifnya berbagai jenis alat tangkap yang digunakan oleh para nelayan. Akibatnya adalah tertangkapnya ikan-ikan yang bukan menjadi tujuan penangkapan (bycatch) yang dalam prakteknya sebagian besar ikan-ikan tersebut dibuang ke laut (discarded catch). Penelitian ini bertujuan untuk mengidentifikasi dan menginventarisasi komposisi jenis dan ukuran ikan hasil tangkapandari alat tangkap bagan perahu dan bagan tancap.Lokasi penelitian di Kelurahan Oesapa sebagai sentra pemukiman nelayan bagan perahu danbagan tancap di Kota Kupang dan di Perairan Teluk Kupang.Penelitian ini dilakukan menggunakan metode survei dengan obyek penelitian yaitu: fakta, proses, histori, persepsi tentang perikanan bagan perahu, komposisi jenis dan ukuran ikan tangkapan yang meliputi identifikasi hasil tangkapan, berat (kilogram), jumlah (ekor), panjang cagak (fork length), keliling maksimum (maximum girth), dan lebar badan ikan. Cara mengukur panjang baku pada penelitian ini yaitu jarak garis lurus antara ujung bagian kepala yang paling depan (biasanya ujung salah satu dari rahang yang terdepan) sampai ke pelipatan pangkal sirip ekor.Hasil menunjukkan bahwa jenis ikan yang dominan tertangkap pada bagan perahu adalah ikan teri, peperek dan kembung, sedangkan pada bagan tancap ikan peperek, teri dan tembang. One of the problems faced in using fish resources is the lack of selectivity of various types of fishing gear used by fishermen. The result is the catch of fish which is not the purpose of arrest(bycatch) which in practice most of the fish are discarded catch. This study aims to identify and inventory the type and size offish catches (boat lift net and fix lift net). Research location in Oesapa village in Kupang City in Kupang Bay. This research was conducted by survey method with research object that is: fact, process, history, perception of fishery boat lift net, species composition and size of fish catch including identification of catch, weight (kilogram), number (tail), length of fork length, maximum girth, and fish body width, mesh size. The method of measuring the standard length in this study is the distance of a straight line between the tip of the front of the head (usually the tip of one of the leading jaws) to the tail fin's base. The results show that the dominant fish species in boat lift net are anchovies, pony fishes, and long-jawed mackereland, from fix lift net, are pony fishes, anchovy and sardine. 
KARAKTERISTIK TEPUNG SORGUM TERMODIFIKASI DENGAN PROSES FERMENTASI DENGAN MENGGUNAKAN YEAST INDIGENOUS SORGUM Hidayah, Zulianatul; Sir, Rikka Welhelmina
Jurnal Sains dan Teknologi Pangan Vol 6, No 6 (2021): Jurnal Sains dan Teknologi Pangan
Publisher : JURUSAN ILMU DAN TEKNOLOGI PANGAN, UNIVERSITAS HALU OLEO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (578.385 KB) | DOI: 10.33772/jstp.v6i6.22860

Abstract

ABSTRACTThe purpose of this study was to examine the physicochemical characteristics of fermented sorghum flour using indigenous sorghum yeast. The study used a completely randomized factorial design with various fermentation times (24, 48, 72 hours) as the first factor and the concentration of indigenous sorghum yeast starter (2.5%, 5%, 7.5%, 10%, 12.5%, and 15% w/v) as the second factor in three replications. Parameters observed were physicochemical characteristics including starch content, water content, swelling power, water absorption, and bulk density. The data obtained were analyzed using analysis of variance (ANOVA) (P<0.05) and Duncan's Multiple Range Test (DMRT). The results show that the best-fermented sorghum flour was obtained at 72 hours of fermentation time with a 5% starter. The sorghum flour has a starch content of 74.8%, water content of 10.97%, swelling power of 15.44 g/g, water absorption capacity of 67.58%, and bulk density 0.6 g/ml. Modification by fermentation using indigenous sorghum yeast can improve the physical and chemical properties of sorghum flour. Based on the nutritional content of sorghum flour, it met the quality requirements of Codex Standard 173-1989 in ash, protein, fat, crude fiber, and carbohydrate contents.Keywords:sorghum, modified, yeast indigenous, phisycal and chemical characteristik.ABSTRAKTujuan penelitian ini adalah untuk mengkaji karakteristik fisikokimia tepung sorgum hasil fermentasi dengan menggunakan yeast indigenous sorgum. Penelitian dilakukan dengan menggunakan rancangan acak lengkap pola faktorial dengan lama fermentasi (24, 48, 72 jam) sebagai faktor pertama dan konsentrasi starter yeast indigenous sorgum (2,5%, 5%, 7,5% dan 10%, 12,5% dan 15% b/v) sebagai faktor kedua, menggunakan 3 ulangan. Parameter yang diamati adalah karakteristik fisikokimia meliputi kadar pati, kadar air, sweeling power, daya serap air dan densitas Kamba. Data yang diperoleh dianalisis dengan menggunakan Analisis Ragam (ANOVA) (P<0,05) dan uji lanjut Duncan Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa tepung sorghum terfermentasi terbaik didapatkan pada perlakuan lama fermentasi 72 jam dengan jumlah starter sebanyak 5%. Karakterisitik tepung sorgum ynag dimiliki adalah kadar pati 74,8%, kadar air 10,97%, swelling power 15,44 g/g, daya serap air 67,58% dan densitas kamba 0,6 g/ml. Modifikasi dengan fermentasi menggunakan yeast indigenous sorgum mampu memperbaiki sifat fisik dan kimia tepung sorgum. Berdasarkan kandungan gizi pada tepung sorgum telah memenuhi syarat mutu Codex Standard 173-1989 pada kadar, abu, protein, lemak, serat kasar dan karbohidrat.Kata kunci: sorgum, modifikasi, yeast indigenous, sifat fisikokimia
Dragon Fruit (Hylocereus polyrhizus) Wine: Physical, Biochemical, and Organoleptic Preferences Bunga, Senni Juniawati; Sir, Rikka Welhelmina; Hidayah, Zulianatul
Journal of Applied Food Technology Vol 12, No 1 (2025)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17728/jaft.25794

Abstract

Dragon fruits (Hylocereus polyrhizus) are considered as one of the nutritious exotic fruits in Asian countries. Juice extracted from these fruits has been processed into wine by spontaneous fermentation. Fermentation was carried out for 21 days, and then wine aging was continued for 3 months. The biochemical properties (tartaric acid, alcoholic content, total soluble solids, reducing sugar content, color, and antioxidant activity) were determined using standard scientific procedures of food characteristics. The results after 3 months of wine aging show that a pH value of 3.51, a tartaric acid of 8.06%, an alcoholic content of 13%, a total soluble solid of 3o brix, a total reducing sugar content of 0.28 g/100 mL, a DPPH activity of 75.79%, and a chroma test score of 13.73. Sensory evaluation showed no differences in flavor, taste, aroma, and overall acceptability between the processed wine and a reference wine. The dragon fruit wine was generally accepted. Therefore, this study requires further comprehensive investigation into the substantial contents of functional compounds such as organic volatile groups and bioactive compounds.