Herla Rusmarilin
Program Studi Ilmu dan Teknologi Pangan Fakultas Pertanian Universitas Sumatera Utara Medan

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PENGARUH PERBANDINGAN SARI BELIMBING MANIS DENGAN SARI JAMBU BIJI MERAH DAN JUMLAH CMC (CARBOXY METHYL CELLULOSE) TERHADAP MUTU MARGARIN BUAH (The Effect of Ratio of Starfruitand Red Guava Juices and Ammount of CMC (Carboxy Methyl Cellulose) on The Fruit Ahmad Wadud; Rona J. Nainggolan; Herla Rusmarilin
Jurnal Rekayasa Pangan dan Pertanian Vol 5, No 1 (2017): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

ABSTRACT The aim of this research was to determine the effect of starfruit and red guava juices on concentration of CMC (Carboxy Mhethyl Cellulose) on the fruit margarine quality. This study used completed randomized factorial design with two factors, is the ratio of starfruit with red guava juice (S) : (70%:30%; 60%:40%; 50%:50%; 40%: 60%; 30%:70%) and the concentration of CMC(C) (1%, 2%, 3%). The parameters of analysis were water content, fat content, vitamin C content, total acid, free fatty acid, total soluble solid, color index, score test of topical power, score test of texture, and hedonic test of color, flavor, and taste. The results showed that the ratio of starfruits and red guava juices had a highly significant effect (P<0,01) on water content, vitamin C content, total acid, free fatty acid, color (oHue Index), score test of texture,score test of topical power, hedonic test of color, flavor, and taste and had no significant effect (P>0,05).The concentration of CMC showed a highly significant effect (P<0,01) on vitamin C content , and showed a significant difference (P<0,05) on water content and score test of topical power. Interaction between the ratio of starfruit and red guava juice on the concentration of  CMC showed a significant effect on water and vitamin C content. The ratio of 30% of starfruit  juice and 70% of  red guava juice with 3% of CMC concentration had the best quality of fruit margarine. Keywords : Margarine Fruit, Starfruit, Red Guava, CMC ABSTRAK   Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan sari belimbing manis dengan sari jambu biji merah dan konsentrasi CMC (Carboxy Methyl Cellulose) terhadap mutu margarin buah. Penelitian ini menggunakan rancangan acak lengkap faktorial 2 faktor yaitu perbandingan sari belimbing manis dengan sari jambu biji merah (S) : (70%:30%; 60%:40%; 50%:50%; 40%:60%; 30%:70%) dan konsentrasi CMC (C) : (1%, 2%, 3%). Parameter yang dianalisa adalah kadar air, kadar lemak, kadar vitamin C, total asam, asam lemak bebas, total padatan terlarut, penentuan indeks warna, uji skor daya oles, uji skor tekstur, nilai hedonik warna, aroma, dan rasa. Hasil penelitian menunjukkan bahwa perbandingan sari belimbing manis dengan jambu biji merah memberikan pengaruh berbeda sangat nyata (P<0,01) terhadap kadar air, kadar  vitamin C, total asam, asam lemak bebas, nilai indeks warna, nilai skor tekstur, nilai skor daya oles, nilai hedonik warna, nilai hedonik aroma, dan nilai hedonik rasa dan memberikan pengaruh berbeda tidak nyata (P>0,05) terhadap kadar lemak. Konsentrasi CMC memberikan pengaruh berbeda sangat nyata (P<0,01) terhadap kadar vitamin C, dan memberikan pengaruh berbeda nyata (P<0,05) terhadap kadar air dan nilai skor daya oles. Interaksi perbandingan sari belimbing manis dengan jambu biji merah dan konsentrasi CMC memberikan pengaruh berbeda nyata terhadap kadar air dan kadar vitamin C. Perbandingan sari belimbing manis dengan sari jambu biji merah 30% : 70% dan konsentrasi CMC (3%) memberikan pengaruh yang terbaik untuk mutu margarin buah.   Kata kunci : margarin buah, belimbing manis, jambu biji merah, cmc,
PENDUGAAN UMUR SIMPAN KERUPUK BAWANG KENTANG DENGAN METODE AKSELERASI BERDASARKAN PENDEKATAN KADAR AIR KRITIS (The Estimation of Shelf Life Onion Potato Chips Using Accelerated Method Based Approach To The Critical Moisture Content Asri Murni; Herla Rusmarilin; Ridwansyah Ridwansyah
Jurnal Rekayasa Pangan dan Pertanian Vol 5, No 1 (2017): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (252.779 KB)

Abstract

ABSTRACT The aim of this research was to find the effect of several types of packaging and storage time of the onion potato chips, and to estimate the shelf life of onion potato chips which were packed in polypropylene, polyethylene, and metalized plastic using accelerated method based on the critical moisture content approach. The effect of the types of packaging and storage time of the onion potato chips was determined using a completely randomized design with two factors,i.e.packaging type (K) (polypropylene; polyethylene; and metalized plastic) and storage time (M) (7 days; 14 days; 21 days ; and 28 days). The parameters analyzed were water content, fat content, free fatty acids, peroxide value, organoleptic values ​​of color, aroma, flavor, and texture. The estimation of shelf life of onion potato chips was using accelerated method based on the critical moisture content approach. The results showed that the type of packaging had highly significant effect on water content, fat content, free fatty acids, peroxide, organoleptic value (aroma, flavor, and texture) and had significantl effect on organoleptic value of color. Storage time had highly significant effect on water content, fat content, free fatty acids, peroxide, organoleptic value (aroma, flavor, and texture) and had significant effect on organoleptic value of color. The interaction between the type of packaging and storage time had highly significant effect on organoleptic value of texture. The shelf life of onion potato chips which were packed with polyethylene, polypropylene, and metalized plastic were (at 75% RH : 15 days, 86 days and 498 days respectinaly); (at 80% RH : 11 days, 63 days, and 361 days respectinaly); and (at RH 85% : 7 days, 44 days and 254 days respectinaly). Keywords: Onion Potato Chips, Packaging Type, Storage Time, Shelf Life ABSTRAK   Penelitian ini bertujuan untuk mengetahui pengaruh berbagai jenis kemasan dan lama penyimpanan terhadap kerupuk bawang kentang, dan untuk menduga umur simpan kerupuk bawang kentang yang dikemas dalam kemasan polypropylene, polyethylene, dan metalized plastic dengan metode akselerasi berdasarkan pendekatan kadar air kritis. Pengaruh berbagai jenis kemasan dan lama penyimpanan terhadap kerupuk bawang kentang menggunakan metode rancangan acak lengkap dengan 2 faktor yaitu penggunaan jenis kemasan (K) (polypropylene; polyethylene; dan metalized plastic) dan lama penyimpanan (M) (7 hari; 14 hari; 21 hari; dan 28 hari). Parameter yang dianalisa adalah kadar air, kadar lemak, asam lemak bebas, bilangan peroksida, nilai organoleptik warna, aroma, rasa, dan tekstur. Pendugaan umur simpan kerupuk bawang kentang menggunakan metode akselerasi berdasarkan pendekatan kadar air kritis. Hasil penelitian menunjukkan bahwa jenis kemasan memberikan pengaruh berbeda sangat nyata terhadap kadar air, kadar lemak, asam lemak bebas, bilangan peroksida, nilai organoleptik (aroma, rasa, dan tekstur) dan memberikan pengaruh berbeda nyata terhadap nilai organoleptik warna. Lama penyimpanan memberikan pengaruh berbeda sangat nyata terhadap kadar air, kadar lemak, asam lemak bebas, bilangan peroksida, nilai organoleptik (aroma, rasa, dan tekstur) dan memberikan pengaruh berbeda nyata terhadap nilai organoleptik warna. Interaksi antara jenis kemasan dan lama penyimpanan memberikan pengaruh berbeda sangat nyata terhadap nilai organoleptik tekstur. Umur simpan kerupuk bawang kentang yang dikemas dengan kemasan polyethylene, polypropylene, dan metalized plastic pada masing-masing penyimpanan yaitu :  (RH 75% : 15 hari, 86 hari, dan 498 hari); (RH 80% : 11 hari, 63 hari, dan 361 hari); dan (RH 85% : 7 hari, 44 hari, dan 254 hari).