Saroj Sunil D, Shashidhar R, Dhokane Varsha, Hajare Sachin, Sharma Arun, Bandekar Jayant R
Food Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
J Food Prot. 2006 Oct;69(10):2515-8. doi: 10.4315/0362-028x-69.10.2515.
A study was undertaken to assess the microbiological quality of sprouts marketed in Mumbai and its suburbs. A total of 124 sprout samples of four different legumes--mung (Phaseolus aureus), matki (Phaseolus aconitifolius), chana (Cicer arietinum), and vatana (Pisum sativum)--were analyzed over a period of 12 months for aerobic plate counts, coliforms, yeast and mold counts, staphylococci, Salmonella, Listeria monocytogenes, Escherichia coli, E. coli O157:H7, and coagulase-positive Staphylococcus aureus. Aerobic plate counts ranged from 7.6 to 8.9 log CFU/g, coliform counts ranged from 5.4 to 7.9 log CFU/g, yeast and mold counts ranged from 3.6 to 7.3 log CFU/g, and staphylococci counts ranged from 3.3 to 6.6 log CFU/ g. Nonpathogenic E. coli was detected in 13% of the mung, 26% of the matki, 40% of the chana, and 19% of the vatana samples. Salmonella Typhimurium was detected in 21% of the mung, 40% of the matki, and 4% of the chana samples. Salmonella Dublin was detected in 2% of the mung samples, and Salmonella Washington was detected in 4% of the matki samples. L. monocytogenes and E. coli O157:H7 were not detected in any of the samples examined. Coagulase-positive S. aureus was detected in 4% of the mung, 11% of the matki, and 4% of the chana samples. The results indicated that the marketed sprouts were of poor microbiological quality; therefore, further processing, such as radiation processing, is needed to ensure their safety.
开展了一项研究,以评估在孟买及其郊区销售的豆芽的微生物质量。在12个月的时间里,共分析了124份来自四种不同豆类——绿豆(Phaseolus aureus)、黑绿豆(Phaseolus aconitifolius)、鹰嘴豆(Cicer arietinum)和豌豆(Pisum sativum)——的豆芽样本,检测其需氧平板计数、大肠菌群、酵母菌和霉菌计数、葡萄球菌、沙门氏菌、单核细胞增生李斯特菌、大肠杆菌、大肠杆菌O157:H7和凝固酶阳性金黄色葡萄球菌。需氧平板计数范围为7.6至8.9 log CFU/g,大肠菌群计数范围为5.4至7.9 log CFU/g,酵母菌和霉菌计数范围为3.6至7.3 log CFU/g,葡萄球菌计数范围为3.3至6.6 log CFU/g。在13%的绿豆样本、26%的黑绿豆样本、40%的鹰嘴豆样本和19%的豌豆样本中检测到非致病性大肠杆菌。在21%的绿豆样本、40%的黑绿豆样本和4%的鹰嘴豆样本中检测到鼠伤寒沙门氏菌。在2%的绿豆样本中检测到都柏林沙门氏菌,在4%的黑绿豆样本中检测到华盛顿沙门氏菌。在所检测的任何样本中均未检测到单核细胞增生李斯特菌和大肠杆菌O157:H7。在4%的绿豆样本、11%的黑绿豆样本和4%的鹰嘴豆样本中检测到凝固酶阳性金黄色葡萄球菌。结果表明,市场上销售的豆芽微生物质量较差;因此,需要进一步加工,如辐射处理,以确保其安全性。