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Rona Joharmi Nainggolan
Program Studi ILmu dan Teknologi Pangan Fakultas Pertanian USU
Agriculture, Biological Sciences & Forestry Engineering

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Study On The Addition Of Taro, Mung Bean, Wheat Flours On The Quality Of Cookies Wita Dola Rista Sidabutar; Rona Joharmi Nainggolan; Ridwansyah Ridwansyah
Jurnal Rekayasa Pangan dan Pertanian Vol 1, No 4 (2013): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

The research was aimed to investigate the effect of addition of taro and mung bean flours on the quality of cookies. The reseach had been performed using factorial completely randomized design, with one factor i.e : taro flour, mung bean flour and wheat flour (T): 70%:0%:30%, 60%:10%:30%, 50%:20%:30%, 40%:30%:30%, 30%:40%:30%, 20%:50%:30%, 10%:60%:30%, 0%:70%:30%. Parameters analyzed were water content, ash content, fat content, protein content, fiber content, cookies crispy test with instrometer and organoleptic values (flavor, taste and texture).The result showed that the ratio of taro flour, mung bean flour and wheat flour had significant effect on all parameters.The 70%:0%:30% composition produced the best cookies in organoleptic values. . Key words : Taro flour, mung bean flour, wheat flour,cookies
The Effect of The Addition of Natural Preservative Substance Concentration of Arenga pinnata Sap During Storage on the Quality of Liquid Palm Sugar Ricky Fauzi Lubis; Rona Joharmi Nainggolan; Mimi Nurminah
Jurnal Rekayasa Pangan dan Pertanian Vol 1, No 4 (2013): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.475 KB)

Abstract

The research was conducted to determine the effect of the addition of natural preservative substance concentration of Arenga pinnata sap during storage on the quality of liquid palm sugar. The research had been performed using a completely randomized design with two factors, i.e. natural preservative substance concentration which is jackfruit stalk (N) : (2%), (4%), (6%), and (8%) and storage time (L) : (0, 1, 2, and 3 days). Parameters analyzed were pH, total acid, total sugars, total soluble solid (TSS) of Arenga pinnata sap, sensory characteristics (color and aromatic) of Arenga pinnata sap, TSS of liquid palm sugar, yield, sensory characteristics (color, aromatic, and flavor) of liquid palm sugar. The results showed that the natural preservative substance concentration had highly significant effect on all parameters. Storage time had highly significant effect on all parameters. Interaction of both factors had highly significant effect on TSS of Arenga pinnata sap, sensory characteristics color of Arenga pinnata sap, and TSS of liquid palm sugar, had significant effect on pH and total acid, and had no significant effect on total sugars, sensory characteristics aromatic of Arenga pinnata sap, yield, and sensory characteristics (color, aromatic, and flavor) of liquid palm sugar. Natural preservative substance concentration of 6% was the best treatment for the quality of liquid palm sugar. Key words : Arenga pinnata sap, natural preservative substance, liquid palm sugar, storage time
Co-Authors Mimi Nurminah Ricky Fauzi Lubis Ridwansyah Ridwansyah Wita Dola Rista Sidabutar