| Literature DB >> 29412903 |
Kamlesh Shrivas1, Nidhi Nirmalkar2, Santosh Singh Thakur2, Manas Kanti Deb3, Sandip S Shinde4, Ravi Shankar5.
Abstract
We report simple and selective method for detection of vitamins B1 and B6 in brown and white rice samples using localized surface plasmon resonance (LSPR) of sucrose capped gold nanoparticles (AuNPs) as a chemical sensor colorimetrically. Here, detection is based on the color change of AuNPs from pink to blue followed by a red shift of LSPR absorption band in UV-vis region with the addition of vitamins B1 and B6 into the NPs solution. A good linear range was observed in the range of 25-1000 ngmL-1 with detection limit of 8 ngmL-1 for B1 and 50-1000 ngmL-1 with detection limit of 15 ngmL-1 for vitamins B6. The employment of AuNPs for detection of B1 and B6 vitamins in rice food samples showed remarkable abilities in terms of the simplicity, low cost, stability, reproducibility and sensitivity.Entities:
Keywords: Gold nanoparticles; Non-covalent interactions; Plasmonic chemical sensor; Rice food; Vitamins B(1) and B(6)
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Year: 2018 PMID： 29412903 DOI： 10.1016/j.foodchem.2018.01.002
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514