ORP should not be used to estimate or compare concentrations of aqueous H2: An in silico analysis and narrative synopsis
نویسندگان
چکیده
Oxidation reduction potential (ORP) has become a commonly used measurement to characterize functional beverages, specifically alkaline ionized water and hydrogen water. Numerous health benefits including antioxidant effects have been attributed negative ORP value. A greater value is often incorrectly interpreted mean degree of and/or high concentration H 2 . Some meters use the Nernst equation calculate based on measured Unfortunately, due fundamental issues with meter, calculated may be very inaccurate. Using equation, we performed an in silico analysis as function pH, temperature, concentration. Our shows that one unit increase pH (e.g., 7–8) influences by much increasing 100 times 1–100 mg/L). Similarly, at saturated (1.57 mg/L) 7, every ∆T 20 °C changes ≈ 30 mV. This comparable changing factor 10 (0.1 mg/L 1 Finally, measure within 0.1 mg/L, need accuracy about 0.8 However, error range least ±10 mV, which corresponds nearly (≈125% error). intrinsic errors can individually influence than entire contribution dissolved normally ranges. In fact, this easily result sample another despite having significantly less makes it impossible consistently determine if more sample. Therefore, only conclude, reading, that, excluding possibility other reductive redox couples, some level present Accordingly, ORP-based are not recommended for testing or comparing Experimental studies warranted great what predicted via analysis.
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ژورنال
عنوان ژورنال: Frontiers in food science and technology
سال: 2022
ISSN: ['2674-1121']
DOI: https://doi.org/10.3389/frfst.2022.1007001