鳥豪 發問時間: 社會與文化語言 · 7 年前

專有名詞!!Psychrotoleran

Psychrotolerant Sporeformers是麼意思???

3 個解答

評分
  • 7 年前
    最佳解答

    我猜他沒有中文名子

    Psychrotolerant spore-forming bacteria represent a major challenge to the goal of extending the shelf life of pasteurized dairy products. The objective of this study was to identify prominent phylogenetic groups of dairy-associated aerobic sporeformers and to characterize representative isolates for phenotypes relevant to growth in milk. Analysis of sequence data for a 632-nucleotide fragment of rpoB showed that 1,288 dairy-associated isolates (obtained from raw and pasteurized milk and from dairy farm environments) clustered into two major divisions representing (i) the genus Paenibacillus (737 isolates, including the species Paenibacillus odorifer, Paenibacillus graminis, and Paenibacillus amylolyticus sensu lato) and (ii) Bacillus (n = 467) (e.g., Bacillus licheniformis sensu lato, Bacillus pumilus, Bacillus weihenstephanensis) and genera formerly classified as Bacillus (n = 84) (e.g., Viridibacillus spp.). When isolates representing the most common rpoB allelic types (ATs) were tested for growth in skim milk broth at 6°C, 6/9 Paenibacillus isolates, but only 2/8 isolates representing Bacillus subtypes, grew >5 log CFU/ml over 21 days. In addition, 38/40 Paenibacillus isolates but only 3/47 Bacillus isolates tested were positive for β-galactosidase activity (including some isolates representing Bacillus licheniformis sensu lato, a common dairy-associated clade). Our study confirms that Paenibacillus spp. are the predominant psychrotolerant sporeformers in fluid milk and provides 16S rRNA gene and rpoB subtype data and phenotypic characteristics facilitating the identification of aerobic spore-forming spoilage organisms of concern. These data will be critical for the development of detection methods and control strategies that will reduce the introduction of psychrotolerant sporeformers and extend the shelf life of dairy products.

  • Chris
    Lv 7
    7 年前

    可譯為"耐冷芽孢形成因子"吧

    如001提供之實驗說明 置放於低溫的牛奶還是會產生耐冷芽孢的形成原因是芽孢桿菌 所以芽孢桿菌是耐冷spore的形成者

  • 7 年前

    psychro- 為 冷 的意思

    因此

    psychrotolerant 應該可以譯為 耐冷的

    差點跟 psycho- 搞混~~~

還有問題?馬上發問,尋求解答。