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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37203

Title: Isolation of ice-nucleating active bacterium from mackerel and its properties
Contributors: 國立臺灣海洋大學:食品科學系
Keywords: ice-nucleating activity (INA);number of ice nuclei INA/mL
Date: 2002-08
Issue Date: 2016-01-14T06:16:33Z
Publisher: Fisheries Science
Abstract: Abstract:An ice-nucleating bacterium, designated MACK-4, was isolated from ice-stored mackerel (Scomber australasicus) and identified as a Pseudomonas fluorescens. The optimal temperature and pH for its growth in nutrient broth with 2.5% glycerol (NB-G) were 15°C and 6.5, respectively. The maximal ice-nucleating activity (INA) was obtained after 54 h incubation at 15°C. However, the INA was almost completely lost after 48 h incubation at 25°C or higher. The growth and INA decreased with increase of NaCl added in NB-G within 0.0–4.0%. The INA of MACK-4 was very stable at 5–25°C, pH 4.0–9.5, while that of isolated ice-nucleating matter from MACK-4 was stable at 5–25°C, pH 5.5–9.0.
Relation: 68(4),pp.934-941
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37203
Appears in Collections:[食品科學系] 期刊論文

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