Effects of high-pressure homogenization on the survival of Alicyclobacillus acidoterrestris in a laboratory medium

被引：42
作者：
Bevilacqua, A.
Cibelli, F.
Corbo, M. R.
Sinigaglia, M.
机构：
[1] Foggia Univ, Fac Agr Sci, Dept Food Sci, Foggia, Italy
[2] Foggia Univ, Fac Agr Sci, Dept Agro Environm Sci Chem & Crop Protect, Foggia, Italy
来源：
LETTERS IN APPLIED MICROBIOLOGY | 2007年 / 45卷 / 04期
关键词：
Alicyclobacillus acidoterrestris; food preservation; homogenization; spoiling micro organisms;
D O I：
10.1111/j.1472-765X.2007.02219.x
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Aims: This study was aimed to investigate the effectiveness of high-pressure homogenization (HPH) against Alicyclobacillus acidoterrestris. Methods and Results: The susceptibility of three different strains of A. acidoterrestris (DSMZ 2498, Gamma 4 and c8) to HPH (500-1700 bar) was studied. The experiments were performed in a laboratory medium (malt extract broth) on cells and spores. HPH caused a significant reduction of the initial cell number (1-2 log CFU ml(-1) at the highest pressures) in Gamma 4 and DSMZ 2498 strains, whereas the effect on the spores was less significant. Conclusion: This study showed that the susceptibility of A. acidoterrestris to HPH was strain-dependent: DSMZ 2498 seemed the most susceptible strain, whereas c8 was the most resistant one. Significance and Impact of the study: The results of our study will provide useful information on the sensitivity of an emerging spoilage micro-organism, such as A. acidoterrrestris, to HPH.
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收藏
页码：382 / 386
页数：5
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