Retention of alpha Tocopherol and antioxidant activity of encapsulated palm mixed Vitamin E in formulated blends

Abstract

Palm vitamin E containing mixture of tocopherol and tocotrienol was encapsulated using combined solution of maltodextrin and sodium caseinate by spray drying technique. The best formulation that fulfilled the requirement of high core retention with moderate antioxidant activity was found to be 24.5%(w/w) of vitamin E concentrate, 18.5% (w/w) of maltodextrin and 7%(w/w) of sodium caseinate. The corresponding core retention and antioxidant activity value were found to be 71.5% and 43%, respectively. More than 80% of encapsulated α-tocopherol was stable over the whole range of temperature compared to non-encapsulated α-tocopherol. A first-order kinetics model was determined in term of degradation of α-tocopherol in non-encapsulated vitamin E at temperature of 50ºC and 28ºC within 42days of storage. Degradation rate constants (k) were 2.8x10 -2 day -1 and 3x10 -2 day -1 for 28ºC and 50ºC, respectively. The half-life determined were 25days at 28ºC and 23days at 50ºC of storage condition.

Antioxidant, Antimicrobial Activity and Phytochemical Screening of Syzygium cumini L. Leaves in Tropical Region from Surabaya, East Java, Indonesia

“…The methanolic extracts of S. cumini contained 64 compounds. One of the dominant compounds is tocopherol, which is a group of vitamin E. This compound has the potential as an antioxidant 21 . In addition, there are also acetic acid compounds that have the ability as antioxidants and antibacterial agents against Staphylococcus aureus ATCC 29213, Escherichia coli ATCC 25922 and Candida albicans ATCC 10231 22 (Table 4).…”

Phenolics Profiling and Free Radical Scavenging Activity of <i>Annona muricata</i>, <i>Gynura procumbens</i>, and <i>Typhonium flagelliforme</i> Leaves Extract

“…Antioxidants play an essential role in inhibiting the oxidation process from protecting cells from harmful free radicals generated from the body's metabolism and other external factors [6]. In general, antioxidants derived from plants come from its phenolics, like flavonoids [7], hydroxamic acids derivatives [8][9], coumarins [10], vitamins (tocopherol) [11], and phenolic acids (gallic acid) [12][13]. Phenolics are well known as primary active compounds as natural antioxidants and mostly found in plants [13][14].…”

“…Primarily, flavonols are identified in the three plants. The nine compounds detected were kaempferol 3-O-rutinoside(6), kaempferol(7), quercetin (8), quercetin 7-O-rutinoside(9), kaempferol methyl ether(10), myricetin(11), quercetin 3-O-glucoside(12), kaempferol 3-O-hexoside(13), and kaempferol 3-O-(6"-acetyl-galactoside) 7-O-rhamnoside (14). Kaempferol 3-Orutinoside (6) is identified in all extract samples at a retention time of 16 min.…”