Jurnal Rekayasa Pangan dan Pertanian
Vol 3, No 4 (2015): Jurnal Rekayasa Pangan dan Pertanian

Effect of Ratio of Papaya and Starfruit Pulp with Carrageenan Concentration on the Quality of Sheet Jam

Daniel Sitanggang (Program Studi Ilmu dan Teknologi Pangan Fakutas Pertanian USU Universitas Sumatera Utara)
Herla Rusmarilin (Program Studi Ilmu dan Teknologi Pangan Fakutas Pertanian USU Universitas Sumatera Utara)
Linda Masniary Lubis (Program Studi Ilmu dan Teknologi Pangan Fakutas Pertanian USU Universitas Sumatera Utara)



Article Info

Publish Date
14 Dec 2015

Abstract

Papaya and starfruit production in Indonesia is very abundant, but their processing is still very minimal, therefore the diversification of their processing is needed to increase. This study was conducted to determine the effect of ratio of papaya and starfruit pulp with carrageenan concentration on the quality of jam sheet. This study used a completely randomized design with two factors namely ratio of papaya and starfruit pulp (B): 80%:20%, 60%:40%, 40%:60%, and 20%:80%, and carrageenan concentration (K): 2,5%, 3,5%, 4,5% and 5,5%. The parameters analyzed were moisture content, total acid, vitamin C, total dissolved solids, color and texture scores as well as organoleptic values of color, aroma, taste and texture. The results showed that the ratio of papaya and starfruit pulp had highly significant effect on water content, total acid, vitamin C, total dissolved solids, texture scores as well as organoleptic value of taste and texture. Carrageenan concentration had highly significant effect on water content, total dissolved solids, vitamin C, color scores, texture scores as well as organoleptic of color, taste and texture. Interaction of the two factors had highly significant effect on water content and test scores texture. The ratio of papaya and starfruit pulp of 80%:20% with concentration of 4,5% carrageenan gave the best quality characteristics of the sheet jam and still acceptable for consumption. Keywords: Carrageenan, papaya, sheet jam, starfruit.

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Journal Info

Abbrev

jrpp

Publisher

Subject

Agriculture, Biological Sciences & Forestry Engineering

Description

Jurnal Rekayasa Pangan dan Pertanian merupakan media untuk publikasi tulisan asli berkaitan dengan teknologi pangan dan keteknikan pertanian secara luas, yang diterbitkan atas kerjasama antara Program Studi Ilmu dan Teknologi Pangan dan Program Studi Keteknikan Pertanian Fakultas Pertanian ...