Widoeri, Theresia Endang
Widya Mandala Catholic University Surabaya

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PENGARUH JENIS GARAM KALSIUM DAN LAMA PENYIMPANAN TERHADAP KARAKTERISTIK SUKADE LAPISAN ENDODERMIS KULIT BUAH MELON (CUCUMIS MELO L) Ratnasari, Lidya; Ristiarini, Susana; Widoeri, Theresia Endang
Jurnal Teknologi Pangan dan Gizi Vol 11, No 2 (2012)
Publisher : Widya Mandala Surabaya Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.706 KB) | DOI: 10.33508/jtpg.v11i2.1250

Abstract

The usage of endodermic layers of melon (Cucumis melo L) to make succade have texture limitation. Blanching as a part of succade processing can make collapse texture of succade. To limitation the collapse texture need need soaking in firming agent solution like CaCl2, Ca(OH)2 and CaC6H10O6.5H2O. The usage of different calcium salt types will produce hygroscopicity differences which have effect to succade characteristic during storage. The experimental design is Nested Factorial Block Design. These are consist of two factors, the storage period (0, 1, 2, 3, 4 and 5 weeks) nested in the types of calcium salts (CaCl2, CaC6H10O6.5H2O and Ca(OH)2). Each treatment will be repeated three-times and tested parameter are water content, hardness, colour and organoleptic test (different test .i.e. performance, crispness and toughness). The data which obtained were analyzed with ANOVA (Analysis of Varians) at α = 5% then followed by Duncan’s Multiple Range Test at α = 5% to find the degree of treatment which was really different. The experiment showed that calcium salts types influence the water content and shrinkage degree, whereas storage period of each calcium salts types influence the water content, hardness, colour (lightness, yellowness and redness) and organoleptic (crispness and white patch). Succade which were soaked in CaCl2 or calcium lactate solution showed the increasing of water content during five weeks storage, which cause the increasing of tenderness, lightness, yellowness and decreasing of redness, crispness and white patch. Succade which soaked in Ca(OH)2 solution during five weeks storage showed insignificant of increased water content and decreasing of water content in second week which result the increasing of hardness, redness, white patch and decreasing of lightness and yellowness.
PENGARUH KONSENTRASI LARUTAN LFC-12 SEBAGAI EDIBLE COATING DAN LAMA PENYIMPANAN TERHADAP SIFAT FISIKOKIMIA FLAKE BERAS HITAM (ORYZA SATIVA L. INDICA) Soebroto, Janice Utami; Suseno, Thomas Indarto Putut; Widoeri, Theresia Endang
Jurnal Teknologi Pangan dan Gizi Vol 11, No 2 (2012)
Publisher : Widya Mandala Surabaya Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.33508/jtpg.v11i2.1248

Abstract

Black rice (Oryza sativa L. indica) is a local variety that contains anthocyanin so the grains have a dense purple color approaching black. Black rice has 74.81% carbohydrates as a major component so that can be applied to flake form as a practicable breakfast menu. However, that application can reduce anthocyanin in black rice. Therefore, it leads the idea to use L-FC12 solution as edible coating in black rice. This research aims to determine the effect of L-FC12 concentration and storage time on the physicochemical properties of black rice flake. Design research is Nested RCBD (Randomized Completely Block Design) with double factor consisting of the L-FC12 solution concentrations (0%, 20%, 40%, 60% and 80%) and the storage time (0, 20 and 40 days) as the nested factor with three replications. Parameters observed include color, rehydration, water content and anthocyanin. Data are to be analyzed using analysis of variance (ANOVA) at α = 5%. If the result of ANOVA shows significant effect prevails, Duncan's Multiple Range Test shall be done at α = 5% to show the difference among treatments. The best treatment is determined by additive weighting and non-dimensional scaling. Differences in L-FC12 concentration cause equal effects on water content (8,04 % - 10,69 %) and anthocyanin content (97,494 mg/g –292,482 mg/g), opposite effect on rehydration (59,00 % – 127,33 %), but no effects on lightness, redness and yellowness black rice flake. While the storage time cause equal effect on water content and lightness, cause opposite effect on anthocyanin content and rehydration. Storage time cause the fluctuations of redness and yellowness.