The aim of this study was to determine the antioxidant activity as well as total phenol (TPC) and total flavonoid content (TFC) in two fruits, apple (Malus domestica) and green beans (Phaseolus vulgaris). The antioxidant activities were examined by two different methods namely DPPH free radical scavenging activity and reducing power scavenging activity. The results showed that considerable amou...

Antioxidant rich green leafy vegetables including garden spinach leaf, water spinach leaf, Indian spinach leaf, and green leaved amaranth were selected to evaluate the effects of water boiling and oil frying on their total phenolic content (TPC), total flavonoid content (TFC), reducing power (RP), and antioxidant capacity. The results revealed that there was a significant increase in TPC, TFC, ...

Six different crude extracts were obtained from the skin, pulp and whole fruit freeze-dried samples of Baccaurea angulata, an underutilized tropical fruit from Borneo Island of Malaysia. The effect of solvents on; total phenolic contents, total flavonoid contents, total carotene contents, free radical scavenging activities, phosphatidylcholine peroxidation inhibition activities and qualitative–...

Objective: The aim of the present work was to assess the total phenolic content (TPC), total flavonoid content (TFC), and total alkaloid content (TAC) of crude hydro-methanolic seed extract of Abrus precatorius L. which is one of the beautiful seed bearing plant belonging to family Fabaceae and used extensively in many Ayurvedic preparations with significant therapeutic significance. Methods: T...

The tuckeroo (Cupaniopsis anacardioides) is an Australian native plant that fruits over the summer months. There are very few studies that have characterised its fruit; consequently, this study aimed to delineate the physical, phytochemical and antioxidant properties of the tuckeroo fruit. The tuckeroo skin embodied the largest weight proportion with over 77% of the total fruit weight and it ha...

The ability of Leea philippinensis, an endemic tree in the Philippines, as in vitro free radical scavenger was investigated. Soxhlet extraction using solvents in increasing order of polarity (hexane<chloroform<ethyl acetate<acetone<methanol) yielded acetone and methanol extracts with the highest Total Phenolic Content (TPC) and Total Flavonoid Content (TFC). These crude extracts were further se...

This study was conducted to investigate the chemical and nutritional composition of Artemisia annua leaves in addition to determination of antioxidant potential of their extracts prepared in different solvents. Chemical composition was determined by quantifying fat, protein, carbohydrate, fiber, tocopherol, phytate, and tannin contents. Extraction of A. annua leaves, for antioxidant potential e...

Phương pháp đáp ứng bề mặt được áp dụng để kiểm tra ảnh hưởng của các yếu tố chiết xuất đến hàm lượng polyphenol (TPC) và flavonoid (TFC) trong ​​lá núc nác (LNN). Điều kiện tối ưu xác định TPC TFC là: nhiệt độ 59°C, ethanol 69%, thời gian 11 phút tỷ lệ nguyên liệu/ dung môi là 1/25 (w/v). Quá trình minh ở điều đã định. Các giá trị thực nghiệm (TPC=215,47±1,03 mg GAE/g cao chiết; TFC=158,01±1,1...

Abstract. Praptiwi Windadri FI, Sulistiarini D, Ersaliany NPQ. 2022. Potential bioactivity evaluation of Arytera littoralis Blume (Sapindaceae). Biodiversitas 23: 4977-4983. Bioactivity (Sapindaceae) and its chemical compounds from different parts the plants (flower, leaves, stem) using polarities solvents was carried out in this study. Phytochemical analysis performed standard method. Total ph...

The aim of this study was to determine the antioxidant activity as well as total phenol (TPC) and total flavonoid content (TFC) in two fruits, Solanum anguivi and Solanum incanum grown in Darjeeling Himalaya and used as vegetables in Nepali recipes. The antioxidant activities were examined by five different methods namely DPPH free radical scavenging activity, reducing power, iron chelation, an...