Gamma radiation sensitivity of Enterobacter sakazakii in dehydrated powdered infant formula

被引：20

作者：

Lee, J. W.

Oh, S. H.

Kim, J. H.

Yook, H. S.

Byun, M. W.

机构：

[1] Korea Atom Energy Res Inst, Adv Radiat Technol Inst, Radiat Applicat Res Div, Jeongeup 580185, Jeonbuk, South Korea

[2] Chungnam Natl Univ, Dept Food & Nutr, Taejon 305764, South Korea

来源：

JOURNAL OF FOOD PROTECTION | 2006年 / 69卷 / 06期

关键词：

D O I：

10.4315/0362-028X-69.6.1434

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：

The observed Enterobacter sakazakii D-10-values for tryptic soy broth and dehydrated powdered infant formula were 0.27 +/- 0.05 and 0.76 +/- 0.08 kGy, respectively. A decrease of approximately 3 log in the dehydrated powdered infant formula was obtained by irradiation with 3.0 kGy or rehydration with hot water at 80 degrees C. No recoverable bacteria were found in the powdered infant formula irradiated at 5.0 kGy and stored, either before or after rehydration. A radiation dose of up to 5.0 kGy had no marked effect on the sensory properties of the dehydrated powdered infant formula after rehydration and heating. Gamma radiation could potentially be used to inactivate E. sakazakii in dehydrated powdered infant formula; however, nutritional studies need to be conducted before the use of radiation can be recommended.

引用

页码：1434 / 1437

页数：4

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