豆芽和种子的微生物学评估

Microbiological Evaluation of Vegetable Sprouts and Seeds.

作者信息

Prokopowich Dale, Blank Greg

机构信息

Department of Food Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2.

出版信息

J Food Prot. 1991 Jul;54(7):560-562. doi: 10.4315/0362-028X-54.7.560.

DOI:10.4315/0362-028X-54.7.560

PMID:31051532

Abstract

Microbiological analyses of commercial sprout seeds indicated aerobic plate counts (APC) and confirmed coliforms ranging from < 30 × 10 to 40 × 10 and from 0 to > 11 × 10/g, respectively. Fecal coliforms were detected in the range from 7.3 to 11 × 10/g; Listeria or Salmonella were not detected. Seeds, pregerminated in potable water (16-18 h, 20-22°C), contained an APC ca. 1 logarithm higher than the corresponding dry seeds. Increased levels of confirmed and fecal coliforms were also detected as a result of soaking. The APC of retail sprouts ranged from 3.6 × 10 to 3.7 × 10/g. All samples contained confirmed and fecal coliforms. Coagulase positive staphylococci were detected in ca. 24% of samples analyzed.

摘要

对商业豆芽种子进行的微生物分析表明，需氧平板计数（APC）和确认的大肠菌群分别为<30×10至40×10以及0至>11×10/g。粪大肠菌群的检测范围为7.3至11×10/g；未检测到李斯特菌或沙门氏菌。在饮用水（16 - 18小时，20 - 22°C）中预发芽的种子，其需氧平板计数比相应的干种子高约1个对数。浸泡后还检测到确认的大肠菌群和粪大肠菌群水平有所增加。零售豆芽的需氧平板计数范围为3.6×10至3.7×10/g。所有样品均含有确认的大肠菌群和粪大肠菌群。在约24%的分析样品中检测到凝固酶阳性葡萄球菌。