Nasser Laila A
College of Science, Biology Department, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
Saudi J Biol Sci. 2015 Sep;22(5):513-20. doi: 10.1016/j.sjbs.2014.08.003. Epub 2014 Sep 3.
Several studies have shown that canned meat products may be contaminated with fungal elements, bacteria and even heavy metals which may occur during the transportation, storage and handling processes. We conducted this study to determine the fungal, microbial and heavy metal contents of canned meats in Saudi Arabia. Of the 13 canned meat samples studied, Aspergillus and Penicillium were found in more than 70% of the total samples. Sequences of Penicillium species isolated from meat samples generated a phylogenetic tree which shows that the studied isolates were clustered in four groups. No bacterial contamination was noted in all of the samples. Nine of the 13 samples had iron concentrations above the permissible limit. All samples had zinc and copper levels below the maximum permissible limit. Four samples had cadmium levels above the maximum permissible level. All samples had levels of lead above the maximum permissible levels. These results indicate that fungal elements and higher levels of heavy metals such as lead and cadmium can be found in canned meat products. This may pose as a real danger to consumers, since canned meat products are readily accessible and convenient in Saudi Arabia.
多项研究表明，罐装肉制品可能会受到真菌、细菌甚至重金属的污染，这些污染可能在运输、储存和处理过程中出现。我们开展这项研究以确定沙特阿拉伯罐装肉中的真菌、微生物和重金属含量。在所研究的13个罐装肉样本中，超过70%的样本中发现了曲霉属和青霉属。从肉样中分离出的青霉属物种序列生成了一棵系统发育树，显示所研究的分离株聚为四组。所有样本均未检测到细菌污染。13个样本中有9个的铁浓度高于允许限值。所有样本的锌和铜含量均低于最大允许限值。4个样本的镉含量高于最大允许水平。所有样本的铅含量均高于最大允许水平。这些结果表明，罐装肉制品中可发现真菌以及铅和镉等较高水平的重金属。这可能对消费者构成真正的危险，因为在沙特阿拉伯，罐装肉制品很容易获得且方便食用。
