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Journal : Jurnal Pangan dan Gizi

PENGARUH PENGGUNAAN TAWAS PADA PAKAN TERHADAP TOKSISITAS DAN KADAR ALUMINIUM ORGAN TIKUS IN VIVO Nurrahman -; Retno Murwani; Nur Yazid
Jurnal Pangan dan Gizi Vol 3, No 2 (2012): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.3.2.2012.%p

Abstract

The use of tawas as an food additive has widely used in processing, such as the manufacture of smoked fish, salted eggs and meatballs. This study aims to determine the effect of using tawas as addition in food processing to health. There are two groups of mice each containing 11 mice, one group was givena diet that has been given 0.8 percent tawas and the other one was given diet without the addition of tawas (control group). The issue of diet and water is by ad libitum conducted in 30 days. During the experiment it was recorded the feed intake, performance (behavioral), the appearance of the skin, eyes,feces and urine, and body weight. After the maintenance mice were killed, then conducted an analysis of organ weight and levels of aluminum organ. There was a tendency of tawas addition on feed causing less consumption and weight loss on mice. Granting tawas to treated rats showed no differences inphysical appearance of behavior, skin, eyes and feces, and also no differences in organ weight. While there are differences appear in the urine, which treated rats urine looks a bit turbid than the other one.There is deposits of aluminum in organs like heart, liver, lung, pancreas, kidney and bone. Deposit aluminum at pancreas is the most than the other organs. There are not found any clinical symptoms in both control and treated rats. Key words= Alum, toxicity, aluminium
PENGARUH KONSENTRASI TAWAS TERHADAP PERTUMBUHAN BAKTERI GRAM POSITIF DAN NEGATIF Ayu Fitria Helmiyati; Nurrahman . .
Jurnal Pangan dan Gizi Vol 1, No 1 (2010): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.1.1.2010.%p

Abstract

Bacteria growth with way of binner deviding, is one sel to part two. Time of generation is time by sel to require for to part, it kinds fate from species and condition of growth. The character of bacteries growth on food is heterotrof that need organic matters for it growth. The research was conducted in two phases, the first stage using the addition of Alum treatment 0,8%, 0,825%, 0,85%, 0,875%, 0,9%, 0,925%, 0,95% concentration and the second stage using 0%, 1%, 2%, 3%, 4% and 5% concentration. The result of research bacteri first stage is not indicate preferences gram  positive bacteria or gram negative bacteria. The Second stage, the growth of gram positive bacteria inhibited at concentrations of 1% alum, whereas gram negative bacteria inhibited at concentrations of 2% alum. Statictic analyze with ANAVA indicate Alum concentrasion effect the growth of  gram positive bacteria and gram negative bacteria. Key words = alum, bacterial growth
KADAR GLUKOSA, ALKOHOL DAN CITARASA TAPE ONGGOK BERDASARKAN LAMA FERMENTASI Nurul Fahmi; Nurrahman -
Jurnal Pangan dan Gizi Vol 2, No 1 (2011): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.2.1.2011.%p

Abstract

Cassava starch industry is a byproduct solids derived from the extraction unit still contains a lot of carbohydrates to allow the tape to be made. Fermentation time required in the process of fermentation is 2-3 days, the appropriate time we will get a sense of tape that tastes a little sour and sweet with the scent of alcohol. The research objective was to determine levels of glucose, alcohol and flavour based on tape cassava fermentation time (0 days, 1 day, 2 days, 3 days, and 4 days). The results: significantly effect of fermentation duration on glucose, alcohol and organoleptic properties (fragrance, flavor, texture), whereas not significantly for color. Glucose and alcohol consentration on 3 days fermentation are 3.83 g% and 3.40% w/w, respectively. The best hedonic value on 3 days fermentation duration is 4.24 hedonic scale with criteria liked.
KADAR PROTEIN, TENSILE STRENGTH, DAN SIFAT ORGANOLEPTIK MIE BASAH DENGAN SUBSTITUSI TEPUNG MOCAF Arsyi Wintaha Umri; Nurrahman -; Wikanastri H
Jurnal Pangan dan Gizi Vol 7, No 1 (2017): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.7.1.2017.38-47

Abstract

The main ingredient to make a noodle is wheat flour, it affects the wheat flour import number in indonesia, making it significantly increased. To overcome that issue, the wheat flour has to be substitued by local flour, the mocaf flour. The general objective of this research is to determine protein content, tensile strength, and the organoleptic characteristics of noodles with mocaf substitution. The research method is experiments  type using completely randomized design (CRD) monofaktorial with mocaf substitution variation factor of 0%, 10%, 20%, 30%, 40%, 50% and 60%. The protein content, tensile strength,  and organoleptic characteristic of products were analyzed. The statistical analysis result showed the mocaf substitution quantity had effect on protein content, tensile strength value and organoleptic characteristic in each treatment. The best result of this research is noodle with  20% mocaf substitution,3,766% protein content, 0,4875 N/mm2 tensile strength number, and 2,72 average value of organoleptic characteristic. The  conclusion results of the research conducted on the mocaf substitution noodle showed the are real difference for each test performed, the correlation test showed the result of the protein content is directly proportionate to the tensile strength  number. Keywords: noodles, mocaf, protein content, and tensile strength
PENGARUH LAMA FERMENTASI PADA PRODUKSI MINYAK KELAPA MURNI (VIRGIN COCONUT OIL) TERHADAP SIFAT FISIK, KIMIA, DAN ORGANOLEPTIK Ngatemin -; Nurrahman -; Joko Teguh Isworo
Jurnal Pangan dan Gizi Vol 4, No 2 (2013): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.4.2.2013.%p

Abstract

Virgin coconut oil Virgin coconut oil (VCO) is obtained from fresh coconuts (non-copra) and processed without high-temperature and chemicals. The purpose of the study was to determine the effect of fermentation VCO to the yield, physical properties (density, refractive index), chemical properties (saponification number, acid number, and the number peroksidan), and organoleptic properties (color, aroma, and viscosity). Materials research is the fruit of the coconut meat Typical types (Cocos nucefera lin). The study design used a completely randomized design with duration of fermentation 14, 16, 18, 20, 22, and 24 hours with 4 replications. The results showed no effect on the fermentation yield and physical properties of VCO that includes specific gravity and refractive index, but significantly affect the chemical properties including acid number, saponification and peroxide. Hedonic test the VCO, long fermentation affect the color and viscosity, but does not affect the scent. The yield of the highest VCO in 24-hour fermentation period which is 22%, the highest density in the fermentation of 22 hours is 0.910 g / cm 3 and the highest refractive index of 0.1515 at 24 hours of fermentation. Saponification high of 27.65 mg KOH / g, the lowest value acid value 0.567 mg KOH / g, and the lowest peroxide 1,120 meq / kg at 16 hours of fermentation. A panelist on the level of the highest color 3.3 24 hour fermentation, the aroma of 3.0 A levels at 22 hours of fermentation and viscosity of 2.95 in 16-hour fermentation period.