Purestock/Purestock/Getty Images. Hydroxycitric acid, which comes from the Garcinia cambogia fruit, is often sold as a weight-loss supplement. The fruit itself is used as a condiment in Southeast Asian dishes, such as curries.In purified supplement form, hydroxycitric acid may cause some side effects, so check with your doctor before adding it to your daily regimen.he fruit itself is used as a condiment in Southeast Asian dishes, such as curries. In purified supplement form, hydroxycitric acid may cause some side effects, so check with your doctor before adding it to your daily regimen.
Why is liquid nitrogen used to fast freeze food instead of liquid oxygen? There are two reasons. First, liquid nitrogen is colder than liquid oxygen and thus more effective at flash freezing.
Most people are well aware of the important role oxygen plays in metabolic processes, but the fact that oxygen in the atmosphere owes its existence as much to life as life owes its existence to it is often overlooked.It was life itself that created an oxygenated atmosphere and continues to maintain it.s a consequence, any given oxygen molecule has a relatively short lifetime in the atmosphere. Before the rise of photosynthesis, a process which produces oxygen and continues to this day to replenish our supply, Earth's atmosphere had no appreciable quantity of oxygen whatsoever.