Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Vol 6 (2019): Edisi 1 Januari s/d Juni 2019

Inaktivasi Termal Spora Bacillus Licheniformis Dalam Jus Nanas

Dewi Sunarti (Unknown)
Evelyn Evelyn (Unknown)
Syelvia Putri Utami (Unknown)



Article Info

Publish Date
31 May 2019

Abstract

Bacillus licheniformis is a bacteria that has high heat resistance. The purpose of this study was to determine the effect of temperature (T: 85 ° C, 90 ° C, 95 ° C) at soluble solid SS: 12 ° Brix on the thermal inactivation of B. licheniformis. Then determine the value of D andZ. This study uses the thermal method of pasteurization process and spore calculation using the spread plate method. The D-values obtained at SS 12 ° Brix for temperatures 85, 90 and 95 ° C were 16.56; 7.63; and 3.52 minutes and the Z-value obtained is in the at 14,88 ° C. Itwas shown that haiger temperature resulted in the decreasing of the time needed to inactivate the spores. The results of this study emphasize the importance of temperature to the D and Z value for pineapple juice pasteurization.Keywords: bacillus licheniformis, endospore, inactivation, pasteurization, pineapple juice.

Copyrights © 2019