The value of the pepper is purely designated for its pungency and its flavour, which is attributed for the presence of a naturally occurring alkaloid substance known as Piperin, along with the volatile essential oils.
The volatile oils, comprises of about 0.4 to 0.7 percentage, which is necessary for its aroma. Even though piperine is found in abundant, these aromatic compounds play a vital and a significant role in bringing the flavour to this spice.
On the other hand, the amount of piperine in the spice varies depending on the piperaceae family, which constitutes about 2 to 7.4 percent in black and white pepper.
Piperin I found most abundantly only in the pepper than any other spices. It was first extracted from the peper by the scientist named Hans Christian Orsted in the year 1819. It was found to be in yellow crystalline compound having a melting point of about 128 to 130 degree Celsius.
Later the chemical structure of piperine was identified and it is named as piperoylpiperidine. Generally, piperin is considered as a very weak base, which on acting in the hydrolysis of acid and alkaline decomposes readily and results in a volatile basic piperine. This volatile piperine also be said as Piperidine.
In ancient times black pepper was used as a natural source of medicine in Chinese and Indian medicines, for treating the alleviatinone of pain, rheumatism, chills, fevers etc.
Black pepper is also taken in the form of tea for relieving from headaches, sored throat, and it also helps in poor digestion and also in enhancing the blood circulations by increasing the flow of saliva and by increasing the appetite. Recent studies also shows that piperine contains a chemo preventive and the antioxidant activities, and also in acting as an immunomodulatory, anticarcinogenic, stimulatory, anti-inflammatory and the hepatoprotective and the antiulcer activities.
Piperine also paves a way in enhancing the bioavailability and the bio transformative effects which helps I differentiating the drugs like rifampicin, tetracycline, sulfadiazine and phenytoin which increases their absorption by slowing the process of metabolism of the drug.
Piperin generally shows a protective effect against the radiations, so it is applied to the cancer patients before undergoing the treatment of radiotherapy.