Publications by authors named "Sargun Malik"

Boza is an indigenous, traditional, low-alcohol and highly viscous beverage prepared by fermenting cereals. Its thick and gel-like consistency make it suitable for consumption via spoon. Although boza is a nutritious beverage, its protein content is very low (<2%).

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Food safety is imperative, especially for infants and young children because of their underdeveloped immune systems. This requires adequate nutritious food with appropriate amounts of macro- and micronutrients. Currently, a well-established system for infant food is enforced by the regulatory bodies, but no clear system exists for complementary food, which is consumed by children from the age of 6 month to 24 months.

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Clay/polymer nanocomposites (CPNs) are polymers incorporating refined clay particles that are frequently functionalized with quaternary ammonium cations (QACs) as dispersion aids. There is interest in commercializing CPNs for food contact applications because they have improved strength and barrier properties, but there are few studies on the potential for QACs in CPNs to transfer to foods under conditions of intended use. In this study, we manufactured low-density poly(ethylene) (LDPE)-based CPNs and assessed whether QACs can migrate into several food simulants under accelerated storage conditions.

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Article Synopsis
  • A flow-injection mass spectrometry (FI/MS) method was developed for measuring quaternary ammonium cations (QACs) in food simulants, utilizing dimethyldioctadecyl ammonium ion as the calibration standard.
  • The method showed strong calibration, with linear curves and a limit of quantitation (LOQ) of 5 ppb, while effectively recovering QACs from various food simulants through a solvent exchange process.
  • Overall, this technique proves to be effective for quantifying trace QAC levels, aiding in the evaluation of their safety in new food contact materials.
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