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Annona muricata L. is one of the important natural medicine yielding tree. Collection and Characterization of gremplasms for its active molecules variation and identify the elight germplasm is mandatory to help tree improvement programme and pharmaceutical industry. Survey has been carried out in different zones of Tamilnadu especially high rain fall zone like Kaniyakumari and Pondicherry, Southern zone Tirunelveli, Western zone Coimbatore. Nearly twenty accessions of A. muricata propagules and fruits were identified to establish field gene bank. Morphological variation and bio-chemical characteristics were measured and used to analyze to find out the superior accessions in this study their diversity remains underexplored for traits related to fruit quality. The investment in screening traits such as phytochemical compounds and antioxidant content and cytotoxic activity is very important to support fruit quality breeding efforts. Thus, the objective of this study was accessing the variations in content of fruit and antioxidant activity and cytotoxic activity (in vitro) of top five ranked A.muricata accessions. The results evidenced that M1 and M2 accessions showed highest stigmast-5-en-3-ol, Squalene and hexadeconoic acid methyl ester and acetogenin and ratio. Accessions M3, M4 and M5 showed highest concentration of polyphenolic components. In vitro antioxidant assays suggest the M1 from Kanyakumari with highest antioxidant activity. The results highlighted accessions that can be exploited in A.muricata breeding programs and can be conserved for long term benefit.

Biochemical Characterization, Antioxidant and Cytotoxic Activity of Annona muricata L. Accessions Fruit