Pelroy G A, Eklund M W
Bureau of Commercial Fisheries Technological Laboratory, Seattle, Washington.
Appl Microbiol. 1966 Nov;14(6):921-7. doi: 10.1128/am.14.6.921-927.1966.
The microfloral changes of irradiated petrale sole fillets during anaerobic (vacuum-packed in cans) refrigerated storage was determined by the identification of 1,260 microbial isolates to the generic level. The samples were irradiated at 0.0, 0.1, 0.2, 0.3, and 0.4 Mrad from a cobalt-60 gamma source, stored at 0.5 C, and examined periodically for spoilage and total microbial population and composition. The preirradiation flora consisted of Achromobacter, Micrococcus, Pseudomonas, coryneforms, Lactobacillus, and Flavobacterium. Immediately after irradiation, Micrococcus, Achromobacter, coryneforms, and Bacillus were predominant. After storage under vacuum, the spoilage flora of the nonirradiated petrale sole was predominantly Pseudomonas; the spoilage flora of the 0.1-Mrad irradiated samples consisted of Pseudomonas and Lactobacillus; and that of the 0.2-, 0.3-, and 0.4-Mrad samples was almost entirely Lactobacillus.
通过将1260个微生物分离株鉴定到属水平，确定了在厌氧（罐装真空包装）冷藏储存期间辐照太平洋拟庸鲽鱼片的微生物群落变化。样品分别用钴-60伽马源以0.0、0.1、0.2、0.3和0.4兆拉德进行辐照，在0.5℃下储存，并定期检查变质情况、微生物总数和组成。辐照前的菌群包括无色杆菌、微球菌、假单胞菌、棒状杆菌、乳杆菌和黄杆菌。辐照后立即以微球菌、无色杆菌、棒状杆菌和芽孢杆菌为主。真空储存后，未辐照的太平洋拟庸鲽鱼片的腐败菌群主要是假单胞菌；0.1兆拉德辐照样品的腐败菌群由假单胞菌和乳杆菌组成；而0.2、0.3和0.4兆拉德样品的腐败菌群几乎全是乳杆菌。
