照射細菌芽胞の耐熱性変化

• 伊藤 均

  日本原子力研究所高崎研究所

書誌事項

タイトル別名

• Change of Heat Resistance on Spore Forming Bacteria After Irradiation
• ショウシャ サイキン ガホウ ノ タイネツセイ ヘンカ

抄録

The effect of heat resistance of endospores after gamma-irradiation were investigated for application to decontaminate microorganisms in spices or other dried food materials. D₁₀values of endospores dried on glass fiber filter with additives of 2% peptone + 1% glycerin were obtained to be 1.8 kGy forBacilluspumilus, 1.1 kGy forB. cereus, 2.2 kGy forClostridium botulinumType A and 2.4 kGy forCl. botulinumType E, respectively. Non-irradiated endospores ofB.pumilusand B. cereuswere inactivated with 40 min of heat treatment at 100°C in water. When endospores were irradiated with 5 kGy, these bacteria were inactivated below 20 min of heating at 100°C in water. In the case ofCl. botulinumType A and Type E, non-irradiated endospores were inactivated with 30 min of heat treatment at 100°C in water, and irradiated endospores at 5 kGy were inactivated below 15 min of heating. However, all of these bacteria could not inactivate endospores even after heating more than 2 hours at 100°C in dry condition or 80°C in water, and decreased a little of necessary times for inactivation of heat treatmentafter irradiation at 5 kGy.

収録刊行物

• 食品照射

  食品照射 36 (1-2), 1-7, 2001

  日本食品照射研究協議会

詳細情報

• CRID: 1390001204559459072
• NII論文ID: 10008016195
• NII書誌ID: AN00117832
• DOI: 10.5986/jrafi.36.1
• ISSN: 18843611
• ISSN: 03871975
• NDL書誌ID: 5935280
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010640205
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5935280
• Web Site: https://search.jamas.or.jp/link/ui/2002082106
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可