Accumet ar 15

Manufactured by Thermo Fisher Scientific

Sourced in United States

The Accumet AR 15 is a portable, digital pH/mV/temperature meter. It features automatic temperature compensation, a large LCD display, and a durable, splashproof housing.

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Accumet (14 citations)

2 protocols using accumet ar 15

Proximate Composition and Color Analysis

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Proximate composition (moisture, crude fat, crude protein, and ash) of samples was determined by standard methods of AOAC (1990 ). For pH measurement, 20 g of sample was homogenized with 80 ml distilled water by using a stomacher (Stomacher^® 400 Lab Blender Series, Seward, AK, USA). The pH was then measured with a pH meter (Accumet AR 15, Fisher Scientific Inc., Pittsburgh, PA, USA). According to the Commission Internationale de l'Elcaorage (CIE) color system, the color of two uncooked and cooked samples at 0 days (CIE L*, lightness; CIE a*, redness; and CIE b*, yellowness) was measured in duplicate using a Hunterlab Miniscan XE (Hunter, Reston, VA, USA) with illuminant A and observer 10. The color of two packages per treatment stored in the dark at 4°C was measured every 3 weeks in duplicate. The instrument was standardized using white and black tiles. In addition, a pink color tile was periodically measured to check for instrument stability before measuring samples. In these assays, two samples in each of the three replications of the experiment were analyzed in duplicate and the average of each treatment was used in the statistical analysis.

Kim J, & Shand P.J. (2022). Combined effect of beet powder and lentil flour as a partial nitrite substitute on physicochemical, texture and sensory characteristics, color, and oxidative stability of pork bologna. Journal of Food Science, 87(10), 4379-4393.

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Beverages pH and Acid Content

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Beverages were purchased from convenience stores, grocery stores, gas stations and vending machines in the Birmingham, Alabama area. A total of 380 beverages were studied and categorized. Groups included: waters and sport drinks (Table 1); juices and fruit drinks (Table 2); sodas (Table 3); energy drinks, teas and coffee (Table 4). An Accumet AR 15 pH meter (Fisher Scientific, Pittsburgh, PA) was used to measure the pH of each beverage in triplicate immediately after opening at 25 °C. The pH data were recorded as range and mean ± standard deviation. Nutritional information labels on the containers were used to determine the type of acid(s) added to the beverages.

Reddy A., Norris D.F., Momeni S.S., Waldo B, & Ruby J.D. (2015). The pH of beverages available to the American consumer. Journal of the American Dental Association (1939), 147(4), 255-263.

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