DICKI ARIANTO, 123020192 and Neneng Suliasih, DS and Thomas Gozali, DS (2016) VARIASI JENIS DAN KONSENTRASI GELLING AGENT TERHADAP KARAKTERISTIK MARSHMALLOW BUAH NAGA (Hylocereus undatus dan Hylocereus polyrizus). Skripsi(S1) thesis, Fakultas Teknik Unpas.
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Abstract
The purpose of this research was to know the effect of gelling agent type and concentration toward dragon fruit marshmallow characteristics. The experimental design in this research used 3x3 factorial design in a randomized complete block design (RBD) with 3 times repetition. There were two factors that used in this research, which were A factor (gelling agent type) and B factor (gelling agent concentration) that each of those consists of 3 levels, they were a1 (gelatin), a2 (agar-agar), a3 (gelatin and agar-agar mixture), b1 (concentration of 3,5%), b2 (concentration of 5,5%), and b3 (concentration of 7,5%). Organoleptic response used several attributes such as color, texture, aroma, and taste. Chemical analyses consist of water content with gravimetric method, reducing sugar content with luff schoorl method, and vitamin C content with idiometric method. Physical analysis was done by measuring springiness of marshmallow and antioxidant acivity using DPPH method for the best sample. The result showed that gelling agent type affected texture, water content, and physical test of texture. Gelling agent concentration affected texture, aroma, taste, water content, and physical test of texture. The interaction between gelling agent type and concentration didn’t affect the entire attribute testing. Based on organoleptic response found that the selected treatment was a1b1 (gelatin and concentration of 5,5%) with the water content was 29,710%, reducing sugar content was 10,190%, vitamin C content was 30,630%, antioxidant activity was 38.532,0833 ppm and the value of springiness was 0,52 mm/s/g. Keywords: gelling agent type, gelling agent concentration, marshmallow, dragon fruit.
| Item Type: | Thesis (Skripsi(S1)) |
|---|---|
| Subjects: | S1-Skripsi |
| Divisions: | Fakultas Teknik > Teknik Pangan 2016 |
| Depositing User: | Irwan Kustiawan |
| Date Deposited: | 19 Sep 2016 15:11 |
| Last Modified: | 06 Oct 2016 13:53 |
| URI: | http://repository.unpas.ac.id/id/eprint/12193 |
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