Open AccessAnthocyanin in Flacourtia inermis Peel: Analysis and Electronic Transition Study
Author(s) -
Khusna Arif Rakhman,
Abdul Rasid Saraha,
Sudir Umar,
Rahmaniah Zainuddin,
Muhammad İkhlas Abdjan
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22231
Subject(s) - anthocyanin , chemistry , absorption (acoustics) , spectrophotometry , atomic electron transition , nuclear chemistry , photochemistry , chromatography , food science , optics , spectral line , physics , astronomy
This study aimed to determine the anthocyanin content present in Flacourtia inermis peel and its ultraviolet-visible absorption potential as a dye agent. This work focused on developing dye-sensitized materials that require natural eco-friendly dyes which are easily reproducible. The red to purple colour of Flacourtia inermis peel indicates the presence of anthocyanin contents, which were derived from flavonoids. Hence, anthocyanin analysis, UV-vis absorption test and electronic transition study were conducted for information regarding the potential use Flacourtia inermis fruit peel in natural dyes. To determine anthocyanin and absorption ability, UV-visible spectrophotometry was used. Furthermore, the electronic transition of anthocyanin was determined using the semi-empirical method of ZINDO/s. The results indicate that total anthocyanin content of Flacourtia inermis peel was 10.35 mg/100 g, with UV absorption occurring at erythema transmission percent of 0.7553; the pigmentation transmission percent was 0.78696, whereas the electronic transitions of molecular orbitals were observed at an optimum wavelength 425.5 nm visible area, with intensity 1.1233. Molecular orbital levels were six, with two electronic transition shifts, namely n→π* and π→π*.