Phenolic compounds or polyphenols are among the most common compounds of secondary
metabolism in plants. Their biosynthesis is characteristic of all plant cells and is carried out …

Melanin is a biological pigment formed by indoles and phenolic compounds. It is widely
found in living organisms and has a variety of unique properties. Due to its diverse …

Tyrosinase catalyzes the oxidation of phenols and catechols (o-diphenols) to o-quinones.
The reactivities of o-quinones thus generated are responsible for oxidative browning of plant …

Tyrosinase is a key enzyme target to design new chemical ligands against melanogenesis.
In the current review, different chemical derivatives are explored which have been used as …

Over the past century, early advances in understanding the identity of the chemicals that
collectively form a living plant have led scientists to deeper investigations exploring where …

Polyphenol oxidation is a chemical process impairing food freshness and other desirable
qualities, which has become a serious problem in fruit and vegetable processing industry. It …

Melanin, especially integumentary melanin, interacts in numerous ways with
electromagnetic radiation, leading to a set of critical functions, including radiation protection …

Polyphenol oxidase (PPO) is a metalloenzyme with a type III copper core that is abundant in
nature. As one of the most essential enzymes in the tea plant (Camellia sinensis), the further …

Date palm fruits (Phoenix dactylifera L.) were found to contain high levels of allomelanin (1.2–
5.1%). The melanin is localized in the tanniferous cells between the inner and outer …

Seed coats serve as protective tissue to the enclosed embryo. As well as mechanical there
are also chemical defence functions. During domestication, the property of the seed coat …