Asian Research Journal of Current Science

The quantitative phytochemical assays of Azadirachta indica, Tithonia diversifolia, Carica papaya and Chromolaena  odorata was studied. The study was carried out at Soil and Water laboratory, Institute of Agricultural Research and Tranning, Obafemi Awolowo University, Ile-Ife, Nigeria. The phytochemical assay of the aqueous botanical extracts shows difference quantity of alkaloid, tannin, flavanoid and saponin at different concentration of botanical extraction. The result of the study revealed that across all the botanical extracts, alkaloid was the most abundant phytochemical while tannin was the lowest across all the botanical extracts. The highest alkaloid was found in the aqueous extract of Azadirachta indica 4% concentration with value of 3.55g/100g while the lowest was found in aqueous extract of Carica papaya 4% concentration with value of 2.44g/100g. Highest saponin was found in aqueous extract of Carica papaya 4% concentration with value of 0.146 g/100g while the lowest was found in aqueous extract of Azadirachta indica 1% concentration with value of 0.132 g/100g. Flavanoid has its highest content in the aqueous extract of Tithonia diversifolia with value of 0.149 g/100g while the lowest value was found in Azadirachta indica 1% concentration. The study further revealed that extracts of Tithonia diversifolia has a higher content of alkaloid, tannin and flavanoid while Carica papaya has the highest flavanoid content among the botanicals under the study.