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Pengaruh suhu sterilisasi pada sifat morfologis dan mekanik kemasan fleksibel retort produk empal gentong siap saji [The effect of sterilization temperature on morphological and mechanical properties of retort flexible packaging for ready to eat “empal gentong” product ] Kusumaningrum, Annisa; Febrisiantosa, Andi; Amri, Aldicky Faizal; Amdani, Rima Zuriah; Nurhikmat, Asep; Prayogi, Siswo; Dewandaru, Bayu Murti
Jurnal Teknologi & Industri Hasil Pertanian Vol 28, No 2 (2023): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtihp.v28i2.90-98

Abstract

Thermal food sterilization is the preservation technology to extend packaged food shelf life. The properties of packaging materials that change after thermal sterilization are morphological, mechanical, and color properties. This study aimed to observe the effect of sterilization temperature on the morphological, mechanical, and color properties of flexible retort pouch packaging. The food product sample processed in retort packaging was Indonesian traditional food, “empal gentong”. The retort package was composed of PET/Al/Nylon/CPP and processed at 121 °C 0,8 bar for 9 min, with an unprocessed sample was as a control. Three replications of mechanical and color results were analyzed using T-test with p<0.05 significance level to determine the significant difference. The retort pouch sample showed visual and microscopic defects in the form of separation between the PET layer and aluminum foil after being processed at 121 °C 0,8 bar for 9 minutes. In addition, temperature processing at 121 °C influenced the tear strength results and color significantly (p<0,05). Color changes was occured on the inside of the packaging contacting with the food. Each layer in multilayer packaging is interrelated and supports one another. Multilayer flexible packaging combines the different properties of a single monolayer material, so it is suitable for commercial sterile food packaging.                                              
Evaluating the Food Properties of Canned Beef Rendang to Determine the Product Quality Amdani, Rima Zuriah; Kusumaningrum, Annisa; Amri, Aldicky Faizal; Nurhikmat, Asep; Susanto, Agus; Siswoprayogi, Siswoprayogi; Praharasti, Anggita Sari
agriTECH Vol 44, No 3 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.73815

Abstract

Canning is a common method for preserving food, but its application to traditional cuisine is a new concept for Indonesian small and medium enterprises (SMEs), which typically focus on freshly served dish. Several studies have shown that the use of this method has the potential to extend the durability and marketability of beef rendang. Therefore, this study aimed to evaluate the food properties (sensory, proximate, color, spectroscopy, and physiochemical) of canned beef rendang to its suitability for consumption. Canning was carried out using the sterilization method at a temperature of 121 0 C and pressure of 0.7-0.9 bar. The sensory test of the canned product obtained was performed using a questionnaire, exploring various properties, including appearance, color, taste, aroma, and texture, while the proximate analysis was conducted by PT Saraswanti Indo Genetech laboratory. The color analysis was measured with a chromameter Konica Minolta CM-5 using the petri dish method, while the spectroscopy analysis was performed with an FTIR instrument from Brucker Vertex-80 using the ATR technique. Subsequently, moisture content was statistically analyzed using one-way and two-way ANOVA with a 95% confidence level. The sensory test results of canned beef rendang showed a 4.52 rating on a maximum scale of 5. The sterilization value (F0) was 3.819 minutes, which met the BPOM requirement of >3 minutes. The findings showed that the proximate analysis was consistent with the SNI standard, while the spectroscopy analysis indicated an unchanged functional group compared to the initial condition. The canned product was reported to have an increased trend of moisture content, but the range did not exceed the permissible limit of 60%. In addition, the pH and TBA value obtained were 5.745-5.315 and 0.1859-0.3195 mg/kg, respectively. The normal pH range of canned beef was typically 5.3-5.7, indicating that the value recorded met the established standard. Meanwhile, the TBA range obtained was significantly lower than the value of spoiled beef at 1.8 mg/kg. Based on these results, canned beef rendang was edible and safe for consumption.