Indonesian Journal of Food Technology
Vol 2 No 2 (2023): Indonesian Journal of Food Technology

The Effect of Carrageenan Concentration on the Physical, Chemical Characteristics and Preference Levels of Watermelon Albedo and Red Dragon Fruit Sheet Jam

Agus Setiyoko (Program Studi Teknologi Hasil Pertanian, Fakultas Agroindustri, Universitas Mercu Buana Yogyakarta, Indonesia)
Soraya Kusuma Putri (Program Studi Teknologi Pangan, Fakultas Pertanian, Universitas Tidar, Magelang, Indonesia)



Article Info

Publish Date
30 Dec 2023

Abstract

This study aimed of this study was to find out how carrageenan affected the physical, chemical, and consumer preference characteristics of an albedo sheet jam combination made from red dragon fruit and watermelon. Four amounts of carrageenan addition— 0%, 1%, 1.5%, and 2%; three repeatations; and a one-factor Completely Randomized Design (CRD)—were employed in this investigation. Analysis. The sheet jam's texture, color, water content, total dissolved solids, reducing sugars, antioxidant activity, Vitamin C concentration, and hedonic tests were all examined after that. The SPSS program is used in statistical data processing to perform one-way analysis (one-way ANOVA). Using the Duncan approach, more study was conducted to determine the variations between treatments. The hedonic test was used to identify the chosen sheet jam formulation, which also included the inclusion of 1% carrageenan concentration, and the following quality test findings were obtained: Lightness (L) 20.19, redness (a*) 7.11, yellowness (b*) -1.87, texture 652.15 N/mm2, water content 18.28% wb, total dissolved solids 21.29% 0 brix, reducing sugars 46.35%, antioxidant activity of RSA 19.32%, and vitamin C 9.14 mg/100 g.

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Journal Info

Abbrev

ijft

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Indonesian Journal of Foof Technology is the official publication of the Departement of Food Technology Jenderal Soedirman University. The Journal is envisaged as the major platform for communicating advances/developments in the post-harvest science, engineering, and technology aspects of food/food ...