Nutritional profile and DNA damage protective activity of Ottelia acuminata, an endemic plant from southwestern China. Issue 1 (31st December 2022)

• Record Type: Journal Article
• Authors: Lu, Yue-Hong; Yang, Xi; Ding, Hai-Yan; Tian, Cheng-Rui; Gao, Chun-Yan
• Is Part Of: International journal of food properties. Volume 25:Issue 1(2022)
• Page Start: 681
• Page End: 694
• Publication Date: 2022-12-31
• Subjects: Nutritional profile -- Phenolic extracts -- Oxidative DNA damage -- O. acuminata; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664.0705
• DOI: 10.1080/10942912.2022.2057531
• Languages: English
• ISSNs: 1094-2912

Abstract

ABSTRACT: Ottelia acuminata (O. acuminata) is an edible and medicinal submerged plant endemic to southwestern China, yet there is little information available concerning its nutritional or bio-active composition. This study aimed to evaluate in detail the nutritional profile and phenolic composition of O. acuminata (inflorescence, peduncle, and leaf) and investigate a protective activity in phenolic extracts on DNA damage induced by OH and ROO radicals. O. acuminata was excellent sources of protein (17.7–24 g/100 g DW), TPC (11.43–19.00 mg GAE/g DW), ascorbic acid, and minerals (especially potassium, calcium, and iron). Interestingly, the protein contained a high amount of EAA with a ratio (EAA11 /TAA) in the range of 47.79–50.93%, BCAA and MSG-like AA. The inflorescences and leaves of O. acuminata contained abundant UFA with a ratio of UFA/TFA more than 50%. Five phenolic compounds, with a predominance of luteolin, luteolin-7- O -glucoside and chlorogenic acid, were identified by HPLC. Phenolic extracts of O. acuminata displayed a significant protective effect on DNA damage, which effect was comparable to that of the positive control (trolox). It was concluded that O. acuminata is an excellent vegetable with a high nutritional value and a great potential as a natural antioxidant.