Susanne Kuehne, Decernis
Food Fraud Quick Bites

Oodles of Not-so-Sweet Potato Noodles

By Susanne Kuehne
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Susanne Kuehne, Decernis

There is a reliable method to detect starch adulteration.

Food fraud, noodles
Find records of fraud such as those discussed in this column and more in the Food Fraud Database. Image credit: Susanne Kuehne

One of China’s and other Asian countries food staples are sweet potato noodles. However, almost 60% of investigated samples tested positive for cassava, a common adulterant in sweet potato noodles (and also the basis for tapioca). The DNA of 52 samples was extracted and analyzed by the real-time loop-mediated isothermal amplification (Real-time LAMP) method, which showed accurate detection down to a 1% limit.

Resource

  1. Wang, D., et al. (May 29, 2019). “Detection of Cassava Component in Sweet Potato Noodles by Real-Time Loop-mediated Isothermal Amplification (Real-time LAMP) Method”. Molecules 2019, 24(11), 2043. Retrieved from: doi:10.3390/molecules24112043

 

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Susanne Kuehne, Decernis

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