3824260

Caffeine content of pre-workout supplements

Date
March 26, 2023

Caffeine is a naturally occurring stimulant found in the fruit, leaves and beans of coffees, cacao and guarana plants. It is usually added to beverages and supplements such as chocolate covered coffee beans, coffee, energy drinks, expresso, sodas, green tea, black tea, dark chocolate, coffee liquor, and baking goods containing chocolate. Its stimulant properties are often promoted in pre-workout supplements as it is an effective energy-boosting supplement that works best when taken one to two hours before workout and helps to increase endurance for high-intensity exercise. In this study, the caffeine content of several pre-workout supplements was determined using spectroscopic and chromatographic methods. Results showed caffeine content that are close to each other using the two methods.

Related Products

Thumbnail for Antioxidant activity of commercial bee propolis products
Antioxidant activity of commercial bee propolis products
A sticky material collected by bees, propolis is used as building material and defensive substance in the hive. Propolis is composed of resin (50%-70%), oil and wax (30%-50%), pollen (5%-10%) and other chemical compounds…
Thumbnail for Determination of antioxidant activity of human milk samples from the Philippines
Determination of antioxidant activity of human milk samples from the Philippines
Milk and its related products are considered to be an important part of human nutrition…
Thumbnail for Phenol and flavonoid content as correlated with antioxidant activities of several commercial tea samples containing matcha and tulsi
Phenol and flavonoid content as correlated with antioxidant activities of several commercial tea samples containing matcha and tulsi
Tea emerged as the second most consumed beverage globally, following water. Its widespread popularity is attributed to its affordability and minimal side effects, with China leading in tea consumption…
Thumbnail for Antioxidant activity and phenolic content of bee propolis from the United States
Antioxidant activity and phenolic content of bee propolis from the United States
Propolis is a natural resinous substance collected by honey bees from buds and exudates of trees and is used by bees as a glue, general-purpose sealer and draught extruder for beehives…