Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Journal of Applied Food Technology
Umar Santoso
Faculty of Agricultural Technology, Gadjah Mada University, Indonesia
Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
The Functional Properties of Buffalo skin Gelatin Extracted Using Crude Acid Protease from Cow’s Abomasum Sri Mulyani; Umar Santoso; Yudi Pranoto; Francis M.C. Setyabudi; Anang Mohamad Legowo
Journal of Applied Food Technology Vol 6, No 2 (2019)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.88 KB) | DOI: 10.17728/jaft.6464

Abstract

The study was investigated the functional properties of buffalo skin gelatine. Gelatine was extracted from swamp buffalo skin using crude acid protease from cow’s abomasum (CAPC) in concentration variation 0; 2.5; 5; and 7.5 U/mg. The temperature to hydrolysis included at 28 °C, 37°C and 40°C. The emulsion activity index (EAI), Emulsion stability index (ESI), foaming expansion (FE) and foaming stability (FS) were investigated. The interaction between CAPC concentration and hydrolysis temperature has a significant effect (P <0.05) on the emulsion activity index (EAI), emulsion stability index (ESI), foaming expansion (FE) and foaming stability (FS). The highest EAI was obtained in CAPC concentration of 5 U /mg, hydrolysis temperature of 40°C, which was 12.04 m2/g. The higher concentration of CAPC decreased the ESI. The hydrolysis temperature of 40°C produces higher FE than 28°C and 40°C. The highest FE is obtained at CAPC 5U/mg, 37°C hydrolysis temperature, which is 102.93%. The FS values range from 44.91-55.00%. This value is higher than commercial gelatin (bovine skin gelatin) which is 34.90%. The conclusion of this study is that buffalo skin gelatin with the best functional properties was obtained using CAPC 5 U/mg, the hydrolysis temperature of 40°C.
The Physical and Chemical Properties of Marshmallow made from Bufallo (Bubalus bubalis) Hide Gelatin Compared to Commercial Gelatin Umar Santoso; Yudi Pranoto; Yessy Tania Afriyanti; Sri Mulyani
Journal of Applied Food Technology Vol 6, No 2 (2019)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.923 KB) | DOI: 10.17728/jaft.5192

Abstract

In recent years, there is increasing demand of gelatin application, particularly in confectionary products such as marshmallow. Due to halal issue of predominant porcine gelatin, alternative gelatin from other source, like buffalo hide, is critically needed. This study aimed to analyze physical and chemical properties of marshmallow made from buffalo hide gelatin, which was compared to commercial marshmallow and those made using commercial gelatin. Conducted in two stages, the first part was gelatin extraction from buffalo hide and its quality analyses. The second was marshmallow preparation from the gelatin and its analyses. Concentration of buffalo hide gelatin was 4%, 5%, dan 6%, whereas commercial gelatin was 7%, 8%, and 9%. The experiment was repeated three times and all determination were performed in duplicated. Results showed that marshmallow from buffalo hide gelatin contained 15,5 – 18,40 % (wb) moisture; 0,64 - 1.16% (db) ash content; 43,34 – 48,83 % (db) total sugar; and 24,25 – 28,73 % (db) reducing sugar. Textural analyses indicated that the highest value of marshmallow hardness (129.50 g/mm2) and highest value of springiness (5.70 mJ/mm2) were obtained by marshmallow made using 5% and 6% buffalo hide gelatin, respectively), thus concluded that buffalo hide is potential halal gelatin source to produce marshmallow
Co-Authors Anang M Legowo Setyabudi, Francis M.C. Sigit Sri Mulyani Yessy Tania Afriyanti Yudi Pranoto