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Table 2 Compounds identified by mass spectroscopy and their properties

From: Extraction of bioactive compounds from Psidium guajava leaves and its utilization in preparation of jellies

Compound Peak (m/z) Class Chemical name/structure Reported biological, activities References
Quercetin 293.1 Flavonoid 3,3′,4′,5,7-Pentahydroxy flavone Antioxidant, anti-inflammatory and anti-allergy Sharma and Gupta (2010)
Gallocatechin 311.1 Flavonoid Flavan-3,3′,4′,5,5′,7-hexol Antioxidant and anti-cancer Legeay et al. (2015)
Esculin 281.2 Hydroxycoumarin 6-O-Beta-d-glucoside of esculetin Antioxidant, anticancer and a metabolite Wang et al. (2013)
3-Sinapoylquinic acid 379.1 Quinic acid derivative Cyclohexane ring with four hydroxyl groups at positions 1, 3.4, and 5, and carboxylic acid at position 1 Antioxidant and anti-cancer Legeay et al. (2015)
Ellagic acid 341.0 Phenolic acid Dilactone of hexahydroxydiphenic acid Antioxidant, antihepatotoxic, antisteatosic, anticholestatic, antifibrogenic, anti-hepatocarcinogenic, antibacterial, and antiviral García-Nino and Zazueta (2015)
Gallic acid 144.0 Phenolic acid Trihydroxybenzoic acid Antibacterial, anti-fungal, antiviral, anti-inflammatory, antioxidant, anticancer, anti-diabetic Nayeem et al. (2016)
Citric acid 191.0 Carboxylic acid 2-Hydroxy-1,2,3-propanetricar-boxylic acid Antibacterial,calculi dissolution agent, anticoagulant, preservative agent García-Nino and Zazueta (2015)