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All Journal Journal of the Indonesian Tropical Animal Agriculture Livestock and Animal Research
Y. Pranoto
Faculty of Agricultural Technology, Gadjah Mada University Jl. Flora Bulaksumur Yogyakarta 55281
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Veterinary

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Pengaruh Umur Potong dan Konsentrasi Larutan Asam Asetat terhadap Sifat Fisik dan Kimia Gelatin Kulit Babi Sompie, M.; Triatmojo, S.; Pertiwiningrum, A.; Pranoto, Y.
Sains Peternakan: Jurnal Penelitian Ilmu Peternakan Vol 10, No 1 (2012): Sains Peternakan
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/sainspet.v10i1.4816

Abstract

This research was aimed to study the influence of animal age and acetic acid solution concentration on physical and chemical properties. The experiment used Randomized Complete Design (RCD) with two factors and three replicates. The first factor was animal age consisted 3 levels (5, 7 and 9 months). The second factor was concentration of acetic acid solution consisted of 3 levels (2, 4 and 6 percents). The result showed that interaction of animal age period and concentration of acetic acid had no significant effect on gel strength, moisture content, ash content and fat content of pig skin gelatin. It was concluded that pigskin gelatin from ages of 5, 7 and 9 months and concentration acetic acid 2, 4 and 6 % had similar physical and chemical peoperties with the commercial gelatin.
THE EFFECTS OF ANIMAL AGE AND ACETIC ACID CONCENTRATION ON PIGSKIN GELATIN CHARACTERISTICS Sompie, M.; Triatmojo, S.; Pertiwiningrum, A.; Pranoto, Y.
Journal of the Indonesian Tropical Animal Agriculture Vol 37, No 3 (2012): (September)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.37.3.176-182

Abstract

This research was aimed to study the influence of animal age and concentration of the acetic acidsolution on physical and chemical properties of pigskin gelatin. The experiment used CompletelyRandomized Design (CRD) with two factors. The first factor was animal age consisted of 3 levels (5, 7and 9 months). The second factor was concentration of acetic acid solution consisted of 3 levels (2, 4and 6 percents). The result showed that animal age had significant effect (P<0.01) on the yields, gelstrength, viscosity, protein content and pH value but interaction of animal age and concentration ofacetic acid had no significant effect (P>0.05) on the yields, gel strength, viscosity, protein content andpH value. It was concluded that pigskin gelatin from ages of 5, 7 and 9 months and acetic acidconcentration of 2, 4 and 6% had similar characteristics to the commercial gelatin, but the optimumproduction of gelatin was combination of pigskin gelatin from 7 months and of 2% acetic acid.
The effect of pretreatment using hydrochloric acid on the characteristics of buffalo hide gelatin Mulyani, S.; Setyabudi, F. M. C. S.; Pranoto, Y.; Santoso, U.
Journal of the Indonesian Tropical Animal Agriculture Vol 42, No 1 (2017): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.42.1.14-22

Abstract

The objective of the research was to identify the effect of the concentration of hydrochloric acid (HCl) on yield and the characteristics of gelatin from buffalo hide. A completely randomized design was used with various concentrations of HCl treatment 0.3M, 0.6M, 0.9 M, 1.2 M and 1.5M, and four times replication, followed by least significant difference test. The HCl concentration gave significantly effect (P<0.05) on yield, viscosity, pH, gel strength and redness of gelatin. The highest yield (29.17%) was obtained at a concentration of HCl 0.9M. The highest gel strength and viscosity at concentration of 1.2M, were 293.41g bloom and 22.17 cp, respectively. The pH of the gelatin were 5.08 to 5.52. The lightness level (L*) was 69.92-70.97, whereas the redness ranged (a*)  from 0.55 to 1.54 and the yellowness ranged (b*) from 17.54 to 19.59. The moisture, protein and ash concentrations of gelatin were 7.05±0.07-8.92±0.06%, protein content of 83.38±0.06 -91.11±0.03%, and the ash content 0.53 ± 0.04 to 1.23 ± 0.09%, respectively. Based on the spectra absorption of infrared were detected four areas amides: amide A (3402.43-3448.72 cm-1), amide I (1635.65 cm-1), amide II (1527.62 cm-1) and amide III (1242.16 cm-1). The differences in the concentration of HCl had impact on yield,characteristics and secondary structure of buffalo hide gelatin. The HCl concentration at 0.9M was the optimum condition to obtain the highest yield. The characteristics of buffalo hide gelatin after pretreatment using hydrochloric acid had met the standards of GMIA (2012). 
Co-Authors A. Pertiwiningrum M. Sompie S. Mulyani S. Triatmojo Setyabudi, F. M. C. S. U. Santoso