Optimum Pasteurization Value of Pasteurized Tempe Vacuum Packed in - PDF document

29/ 06/ 2011 Optimum Pasteurization Value of Pasteurized Tempe Vacuum Packed in HDPE and Aluminium Foil Eko Hari Purnom o, PhD Prof. Purw iyatno Hariyadi Ratih Ristanti, MSi • Southeast Asian Food and Agricultural Science and Technology (SEAFAST) Center – IPB • Department of Food Science and Technology – IPB Optimum Pasteurization Value of Pasteurized Tempe Vacuum Packed in HDPE and Aluminium Foil Presented at I nternational Sem inar EMERGI NG I SSUES AND TECHNOLOGY DEVELOPMENTS I N FOODS AND I NGREDI ENTS September 29 th – 30 th , 2010 Jakarta - Indonesia 1

29/ 06/ 2011 Introduction � Tempe: � Traditional fermented food � Average consumption: 7.9 kg/ person/ year (Hardinsyah et al ., 2008) � Short shelf life Introduction � Thermal process: � Physical treatment � Simple (equipment and technology) � No systematic study on the underlying parameter controlling product shelf life � Shelf life: f (pasteurization value)? 2

29/ 06/ 2011 Research Method Tempe Packaging (HDPE and Alufo) Heat Penetration Heat treatments test test (T, t) storage Analysis Heat penetration Slowest heating emperature ( o C) S te Cooling Heating Time (minutes) 3

29/ 06/ 2011 Pasteurization value e ateurization value (z=7.2) (minutes) P 85 Pa P Cooling Heating Time (minutes) C. botulinum non proteolytic type E Optimum shelf life (in Aluminum Foil) slim e lf life (days) She Pasteurization value (minutes) 4

29/ 06/ 2011 Optimum shelf life (in HDPE) slim e Shelf life (days) Pasteurization value (minutes) Conclusion 7.2 is easily � Pasteurization value of 6D 85 achieved by dipping in hot water (T ≥ 80 o C) (T ≥ 80 o C) hi d b di i i h t t � Shelf life of pasteurized tempe is determined by the pasteurization value (independent of T) � Maximum shelf life is obtained by pasteurization at optimum pasteurization value value � A shelf life of 25 days is obtained by pasteurization of tempe vacuum packed in 7.2 = 37 minutes and stored at 5 alufo at P 85 o C 5