Processing Treatments for Mitigating Acrylamide Formation in Sweetpotato French Fries

Van-Den Truong V. T., Pascua Y. T., Reynolds R., Thompson R. L., PALAZOĞLU T. K., ATAÇ MOGOL B., ...More

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, vol.62, no.1, pp.310-316, 2014 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1021/jf404290v
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.310-316
  • Keywords: sweet potatoes, Ipomoea batatas, sugars, asparagine, acrylamide French fries, REDUCTION, CULTIVARS, PRODUCTS, TUBERS, FUTURE, LEVEL, FOODS
  • Hacettepe University Affiliated: Yes


Acrylamide formation in sweetpotato French fries (SPFF) is likely a potential health concern as there is an increasing demand for good-quality fries from carotene-rich sweetpotatoes (SP). This is the first report on acrylamide formation in SPFF as affected by processing methods. Acrylamide levels in SPFF from untreated SP strips fried at 165 degrees C for 2, 3, and 5 mm were 124.9, 255.5, and 452.0 ng/g fresh weight, which were reduced by about 7 times to 16.3, 36.9, and 58.3 ng/g, respectively, when the strips were subjected to processing that included water blanching and soaking in 0.5% sodium acid pyrophosphate before frying. An additional step of strip soaking in 0.4% calcium chloride solution before par-frying increased the calcium content from 0.2 to 0.8 mg/g and decreased the acrylamide levels to 6.3, 17.6, and 35.4 ng/g, respectively. SPFF with acrylamide level of <100 ng/g or several times lower than that of white potato French fries can be obtained by integrating processing treatments commonly used in the food industry.