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Nurrahman Nurrahman
Program Studi S1 Teknologi Pangan Universitas Muhammadiyah Semarang
Agriculture, Biological Sciences & Forestry

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SIFAT SENSORIS TEMPE KEDELAI HITAM DENGAN VARIASI PENAMBAHAN KECAMBAH DAN LAMA INKUBASI Iis Istiqomah; Nurrahman Nurrahman; Nurhidajah Nurhidajah
Jurnal Pangan dan Gizi Vol 8, No 2 (2018): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.8.2.2018.70-81

Abstract

The quality of tempe of black soybean sprouts is infl uenced by raw materials, processing and type of inoculum used. Black soybeans can be used as raw material for making tempe that has quality like tempe made from yellow soybeans. This research aims to know the influence of black soybean sprouts and incubation toward the level of fiber, compactness, color, smell and taste of black soybeans tempe. The methods of Complete Randomized Design (RAL) Factorial which used in the research. The stages done black soybean sprouts in germination time during 18 hours, making of tempe was added of black soybean sprouts (0, 10, 20, 30 and 40 percent) and incubation time of tempe making (30, 36 and 42 hours) which used in the research. The test conducted was sensory characteristic (compactness, color, smell and taste). The result shows the interaction between the addition of black soybean sprouts and incubation time were given a very real influence toward the levels of compactness, color and the smell in tempe. The best treatment was added 30 percent of black soybean sprouts in incubation time during 36 hours.
AKTIVITAS ANTIOKSIDAN DAN SIFAT SENSORIS TEH CELUP CAMPURAN BUNGA KECOMBRANG, DAUN MINT DAN DAUN STEVIA. Katrien Arumsari; siti aminah; nurrahman nurrahman
Jurnal Pangan dan Gizi Vol 9, No 2 (2019): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.9.2.2019.79-93

Abstract

Tea is a functional drink that widely used and developed for health purposes. The alternative ingredients for tea making are from plants such as flowers, leaves, skin, fruit, and roots. Teabags,which made from kecombrang flower, mint leaves, and stevia leaves, potentially used as functional drinks,considering the total phenol content and antioxidant activity in each ingredients. The aims of this research is to obtain tea products which contain high total phenol and antioxidant activity with optimum acceptability from kecombrang flower and mint leaves formulations. This study uses a randomized 1:1 ratio design of kecombrang flower : mint leaves, with 5 formulation:(0.4: 1.6), (0.7: 1.3), (1: 1), (1.3: 0.7) and (1.6: 0.4), to obtain the datas of Total Phenol Levels, Antioxidant Activities and Sensory characteristic of the tea. The results shows that there is significant effect on total phenol content and antioxidant activity. It results that F1 formulation has the highest amount of total phenol which is 13.907 mg as.galat / 100 mL as well as the highest antioxidant activity which is 68.84% RSA. Sensory testing produces teas with a similar color, while the taste and scent are significantly different
SIFAT FISIK, SIFAT ORGANOLEPTIK DAN AKTIVITAS ANTIOKSIDAN SUSU BUBUK KEDELAI HITAM BERDASARKAN KONSENTRASI TWEEN 80 Riska Ciptasari; Nurrahman Nurrahman
Jurnal Pangan dan Gizi Vol 10, No 1 (2020): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.10.1.2020.49-63

Abstract

Soy milk is one alternative to cow's milk for lactusa intolerance patients. The utilization of black soy less is attention and not as popular as yellow soybean because of the color that is less interesting. Another alternative in the processing of milk is the manufacture of milk powder. Processing of instant soy milk powder using foam-mat drying method required addition of filler material ie maltodextrin and Tween 80. With the addition of proper Tween 80 concentration expected to produce more stable milk powder. The general purpose of this research is to know the effect of Tween 80 concentration variation on physical properties, organoleptic properties and antioxidant activity of black soybean milk powder. Experimental method of experimental type using Completely Randomized Design (RAL) monofactor with Factor addition of Tween 80 concentration (0, 0,25, 0,5, 0,75 and 1 percent). The product analyzed physical properties (water absorption, moisture content, solubility and settling rate), organoleptic properties and antioxidant activity. The best result of antioxidant activity was 33,70% RSA at concentration 0,25%, water absorption 2,77 ml / g at concentration 0,25%, water content, 8,98% at concentration 0,25%, solubility 84,435% at a concentration of 0.75% and a precipitation rate of 10 s at a concentration of 0.25%. While the best organoleptic test is at concentration 0.25%. The conclusions of the research on black soybean milk powder with the addition of Tween 80 concentration showed a real difference for each test conducted where black soybean milk powder with the addition of Tween 80 0.25% concentration was the best treatment.
Co-Authors Iis Istiqomah Katrien Arumsari Nurhidajah - Riska Ciptasari Siti Aminah