書誌事項
- タイトル別名
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- Effects of Infrared Radiation on Inactivation and Injury of B. subtilis and B. pumilus Spores.
- B subtilis ホウシ オヨビ B pumilus ホウシ ノ フカッセイカ ト ソンショウ ニ オヨボス セキガイセン ショウシャ ノ エイキョウ
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説明
In this study, the effects of infrared radiation (IR) on inactivation and injury of two kinds of bacterial spores (B. pumilus, B. subtilis) were investigated.<br>Inactivation and injury of these spores suspended in sterile distilled water by IR were compared with those by convection heating (HC). The temperature of spore suspension irradiated by infrared ray was a close profile to that heated by convection within the range from room temperature to ca. 97°C. The inactivation of bacterial spores by IR was more intensive than that by HC. It took about 8 and 12min of IR treatment to inactivate 99% of B. subtilis and B. pumilus spores, respectively. These bacterial spores were injured by IR more extensively than by HC in the initial stage of 4min the same bulk temperature of suspension despite.<br>When bacterial spores air-dried on a stainless petri dish were directly irradiated (direct irradiation) by IR without water, direct irradiation by IR could suppress the bacterial spores in a short time comparing with dry heat sterilization by HC. And, the method by IR could inactivate 90% of both kinds of spores having different heat tolerance for almost same periods (1.0kW: 1min, 0.5kW: 2min), however, B. pumilus spores were more liable to be injured than B. subtilis spores by direct irradiation.
収録刊行物
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- 日本食品科学工学会誌
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日本食品科学工学会誌 50 (2), 51-56, 2003
公益社団法人 日本食品科学工学会
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詳細情報 詳細情報について
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- CRID
- 1390282681384074880
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- NII論文ID
- 10029722396
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- NII書誌ID
- AN10467499
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- ISSN
- 18816681
- 1341027X
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- NDL書誌ID
- 6469985
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可