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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Food Science and TechnologyJournal Jurnal Bio-Geo Material Dan Energi Proceedings Series on Physical & Formal Sciences Jurnal Karya Abdi Masyarakat Jurnal Ilmiah Ilmu Terapan Universitas Jambi
Ulyarti
Department Of Agriculture Product Technology, Faculty Of Agriculture, University Of Jambi Centre Of Excellent In Bio-Geo Material, University Of Jambi
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The Effect of Rice Grain Malt Concentration during Hydrolysis of Rice on the Characteristics of Rice Sugar Syrup Rafael, Fadhil Luthfi; Rahmi, Silvi Leila; Purba, Daniel Tua; Ulyarti, Ulyarti
Jurnal Bio-Geo Material Dan Energi Vol. 5 No. 2 (2025): Journal of Bio-Geo Material and Energy (BiGME), September 2025
Publisher : PUI BiGME Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/j-bigme.v5i2.43670

Abstract

Malt is the germination product of cereals that contain hydrolytic enzymes capable of breaking down starch. The concentration of rice grain malt is a factor that affects the hydrolysis process of rice (Oryza sativa L.) and the characteristics of the resulting rice sugar syrup. The malt concentrations used in this study were 25%, 35%, 45%, 55%, and 65%. The rice sugar syrup showed positive (+) results for residual starch. The concentration of rice grain malt had a significant effect on total soluble solids, color, organoleptic ranking, and viscosity. The total soluble solids of the rice sugar syrup ranged from 41.95 to 64.95 °Brix. The color difference (ΔE) ranged from 33.410 to 12.648. The viscosity of the rice sugar syrup ranged from 244.8 to 1448.1 cPs. The organoleptic ranking showed that the syrup produced with 65% malt concentration had the highest sweetness level. Hedonic organoleptic scores for color ranged from 3.6 to 3.36, aroma from 3.48 to 3.92, taste from 3.48 to 4.00, viscosity from 3.32 to 4.00, and overall acceptance from 3.56 to 4.16. The rice grain malt concentration of 65%, which was the highest concentration used for rice hydrolysis, produced rice sugar syrup with total soluble solids of 64.95 °Brix, color difference (ΔE) of 12.648, viscosity of 1448.1 cPs, the highest sweetness ranking, and the best favorability.
The Physicochemical and Sensory Properties of Gluten-Free Brownies Produced using Purple Yam Paste (Dioscorea alata) and Mocaf Ramadani, Suci Putri; Rahmawati, Medina Alia; Pratami, Tesy; Sulistiana, Ika Putri; Yusfi, Liza Aulia; Pamungkas, Putra; Nazarudin, Nazarudin; Ulyarti, Ulyarti
Jurnal Bio-Geo Material Dan Energi Vol. 5 No. 2 (2025): Journal of Bio-Geo Material and Energy (BiGME), September 2025
Publisher : PUI BiGME Universitas Jambi

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Abstract

The development of gluten-free brownies with purple yam paste and mocaf is an alternative for individuals who avoid consuming gluten. This study aims to determine the effect of the ratio of purple yam paste and mocaf on the characteristics of brownies. A Randomized Block Design was used with six treatment levels of purple yam paste to mocaf ratios: 0:100, 15:85, 30:70, 45:55, 60:40, and 75:25. Each treatment was replicated three times. The data obtained were analyzed using Analysis of Variance. If a significant effect was found, the analysis was continued using Duncan new Multiple Range Test (DnMRT) at the 5% level. The results showed that the ratio of purple yam paste to mocaf significantly affected the texture, color, and the hedonic organoleptic qualities of texture and color. The best treatment was the 75:25 ratio which resulted in a texture force of 105.5 N, water content of 20.16%, and color values of L* 37.1 a* 7.8 b* -2.9. Organoleptic scores for this treatment were: texture 3.48 (rather soft), color 4.40 (purple), taste 4.00 (like), overall acceptance 4.04 (like). However, texture and overall acceptance were lower than commercial brownies. The nutritional composition of this treatment included an ash content of 1.42%, protein content of 4.82%, fat content of 29.12%, and carbohydrate of 44.49%.
Co-Authors Abu Bakar Abu Bakar Achmad, E Addion Nizori Asrial D. Wulansari Dedi Gusriadi Edy Panda Gusriadi, Dedi Irma Rahmayani Kanto, Rizky Lavlinesia Lavlinesia Lavlinesia Lavlinesia, L Lavlinesia, lavlinesia Leny Marlinda Marlinda, Leny Monica E. Mursalin . Mursalin Mursalin Mursalin, M Nazarudin Pamungkas, Putra Panda, Edy Pratami, Tesy Purba, Daniel Tua Putri, Mega Bunda Rafael, Fadhil Luthfi Rahayu Suseno Rahayu Suseno Rahmawati, Medina Alia Rahmayani, Irma Ramadani, Suci Putri Rizky Kanto S. E. Sitinjak S.L Rahmi Silvi Leila Rahmi Slamet Slamet Sulistiana, Ika Putri Surhaini Surhaini, Surhaini Suseno, Rahayu Yani, Zunarta Yusfi, Liza Aulia Zunarta Yani