Nutritional and nutraceutical comparison of Jamaican Psidium cattleianum (strawberry guava) and Psidium guajava (common guava) fruits

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• 作者：Kayanne P. McCook-Russell^a ; Muraleedharan G. Nair^b ; Petrea C. Facey^a ; Camille S. Bowen-Forbes^a ; ^{camille.bowen02@uwimona.edu.jm}
• 关键词：Psidium cattleianum ; Psidium guajava ; Strawberry guava ; Antioxidant ; COX enzyme ; Jamaica
• 刊名：Food Chemistry
• 出版年：2012
• 期刊代码：48_03088146
• 类别：abs
• 出版时间：15 September, 2012
• 卷：134
• 期：2
• 页码：1069-1073
• 文件大小：377 K

摘要

Psidium cattleianum (strawberry guava) is one of many underutilised edible fruits that grow wild in Jamaica, and could potentially be commercially exploited to yield health and economic benefits. In this study, the total phenolics, proximate contents, and antioxidant, anti-inflammatory, and antimicrobial activities of P. cattleianum and P. guajava (common guava), a well-known species, were compared. Strawberry guavas were found to be superior to common guavas in antioxidant and antimicrobial activities, total phenolics and vitamin C content. They also possessed relatively high fibre content (24.9%). The hexane and ethyl acetate extracts of strawberry guavas showed cyclooxygenase-2 enzyme inhibitory activities of 18.3%and 26.5%, respectively (250 渭g/mL), indicating anti-inflammatory activity. The EtOAc and MeOH extracts of P. guajava showed 56.4%(COX-2) and 44.1%(COX-1) inhibitory activity, respectively. Additionally, nine compounds were isolated from strawberry guava fruits, some of which demonstrated anti-inflammatory activity. These results indicate that strawberry guavas are beneficial for health.