{'fraction_non_alphanumeric': 0.026101141924959218, 'fraction_numerical': 0.008156606851549755, 'mean_word_length': 5.561497326203209, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Chemical composition and antioxidant activity of some important betel vine landraces

Abstract The essential oil composition and in vitro antioxidant activity of eight important betel vine landraces, such as Balia, Chandrakala, Dandabalunga, Desibangla, Godibangla, Karpada local, Maghai and Nahua were evaluated in this research. GC and GC-MS analysis of the essential oil resulted in identification of 50 compounds representing 95.97% of the oil. Major compounds were eugenol, terpinolene, terpinene, cadinene, caryophyllene, 3-carene, etc. The plant essential oil was also subjected to screening for the evaluation of their antioxidant activities using 2,2-diphenyl-1-picrylhydrazyl assay. The highest antioxidant activity was shown by Balia landraces, whereas the lowest activity by Godibangla landraces. Essential oil showed a great variety of compounds in their chemical composition and antioxidant activity. This might be due to the affect of different environmental factors and soil nutrients of betel vine cultivating zones. The GC-MS chromatogram with antioxidant activity of the above betel vine landraces would not only help to select the elite chemotypes, but also to enhance their future industrial applications.