Microbiological Quality of Tofu and Related Products in Canada.
作者信息
Szabo R A, Jarvis G A, Weiss K F, Rayman K, Lachapelle G, Jean A
机构信息
Food Directorate, Tunney's Pasture, Ottawa, Ontario, Canada K1A 0L2.
Field Operations Directorate, Health Protection Branch, Health and Welfare Canada, Tunney's Pasture, Ottawa, Ontario, Canada K1A 0L2.
出版信息
J Food Prot. 1989 Oct;52(10):727-730. doi: 10.4315/0362-028X-52.10.727.
One hundred and fifty-three samples of tofu, related products, and environmental samples comprising 346 sample units were collected from 14 manufacturers across Canada. They were analyzed for coliforms, Salmonella , Yersinia , Staphylococcus aureus , and psychrotrophs. Although S. aureus counts were generally less than 250 cells per g and Salmonella was not detected, levels of psychrotrophs exceeded 10 per g in more than 45% of finished tofu and okara samples, and levels of coliforms exceeded 10 per g in more than 35% of these samples. Yersinia enterocolitica was also isolated from four samples of finished tofu.
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