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Mimi Nurminah
Program Studi Ilmu dan Teknologi Pangan Fakultas Pertanian Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Engineering

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Effect of Concentration of Soursop Pulp with Ginger and Arabic Gum Concentration on the Quality of Fruit Leather M. Albi Putra; Rona J. Nainggolan; Mimi Nurminah
Jurnal Rekayasa Pangan dan Pertanian Vol 3, No 2 (2015): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (145.345 KB)

Abstract

The aim of this research was to find the effect of ratio of soursop and ginger pulps with several arabic gum concentration on the quality of soursop and ginger fruit leather. This research was conducted by using completely randomized design with two factors, i.e. :ratio of soursop and ginger pulps (S) : (75% : 25% ; 80% : 20% ; 85% : 15% ; 90% : 10%; 95% : 5%) and arabic gum concentration (K): (0,5%, 1%, 1,5% ). Parameters analyzed were moisture content, ash content, vitamin C content, crude fiber content, total soluble solid, total acid, organoleptic score of colour, taste and texture and organoleptic hedonic values of colour, flavour, taste, and texture. The results showed that the ratio soursop and ginger pulps had highly significant effect on moisture content, ash content, vitamin C content, crude fiber content, total soluble solid, total acid, score of colour, taste and texture, and hedonic values of taste and texture. Arabic gum concentration had highly significant effect on moisture content, ash content, vitamin C content, crude fiber content, total soluble solid, total acid. Interactions of the two factors had highly significant effect on moisture content and crude fiber content, and had no effect on ash content, vitamin C content, total solubility solid, total acid, scores of colour, taste and texture, and hedonic values of colour, flavor, taste and texture. The ratio of soursop and ginger pulps of (95% : 5%) and Arabic gum concentration of (1,5%) produced the best quality of fruit leather and more acceptable. Keywords: Arabic gum, fruit leather, ginger, soursop.
Effect of The Lime Concentration and Soaking Time on the Quality of Durian Stone Chips Nurdin Efendi Siregar; Setyohadi Setyohadi; Mimi Nurminah
Jurnal Rekayasa Pangan dan Pertanian Vol 3, No 2 (2015): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (127.284 KB)

Abstract

This study was conducted to investigate the effect of the lime concentration and soaking time on the quality of durian stone chips. This study used a completely randomized design with two factors, namely and the concentration of the lime (L) : ( 0.5, 2, 3.5, and 5 % ) and soaking time ( P ) : ( 1, 2, 3 and 4 hours ). The parameters analyzed were moisture content, fat content, protein content, ash conten, and the value of organoleptic ( color, taste and texture). The results showed that the concentration of the lime had highly significant effect on water content, fat content, protein content, ash content, color, taste and texture. The soaking time gave highly significant effect on the moisture content, fat content, protein content, ash content, color, taste and texture. The interaction of the two factors had a highly significant effect on the moisture content, fat content, protein content, ash content, color, taste and texture. The lime concentration of 0.5% and four hours soaking produced the best durian stone chips . Keywords : Durian stone chips ,lime, concentration, soaking time
Co-Authors M. Albi Putra Nurdin Efendi Siregar Rona J. Nainggolan Setyohadi Setyohadi