title: Antioxidative effect of Assam Tea (Camellia sinesis Var. Assamica) extract on rice bran oil and its application in breakfast cereal.
abstract: The objectives of this research were to investigate the antioxidant effect of Assam tea extract (ATE) and whether it is fit to utilise ATE by fortification in rice bran breakfast cereal (RBC). The increasing ATE powder from 0.1 to 0.3mg/g affected to be decreased. The ATE powder at 0.3mg/g was proved to have decreased the hexanal content (0.21μg/ml) and thiobarbituric acid reactive substances (TBARS) (2.56μg/g) within 28days, and provided the highest antioxidant ability (EC50) (2481.44mg/kg). The fortified 0.3mg/g of ATE powder showed that increasing ATE significantly increased the total phenolic content and decreased TBARS and EC50 of breakfast cereal (p<0.05). The suitable amount ATE powder added in RBC was 0.5%. The consumer acceptance (n=200) of final product showed the sensory scores in the range of 6.3-6.8, with the percentages of acceptance and purchase intention at 98.0% and 89.0%, respectively.
authors.affiliation: Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand; Rice Product Research Unit, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand.
authors.forename: Niramon
authors.initials: N
authors.lastname: Utama-Ang
authors.affiliation: Division of Product Development Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand.
authors.forename: Kamonyanun
authors.initials: K
authors.lastname: Phawatwiangnak
authors.affiliation: Division of Food Engineering Development Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand.
authors.forename: Srisuwan
authors.initials: S
authors.lastname: Naruenartwongsakul
authors.affiliation: Department of Food Science and Technology, Faculty of Technology and Community Development, Thaksin University, Phattalung 93110, Thailand. Electronic address: rsk.smdrt@gmail.com.
authors.forename: Rajnibhas
authors.initials: R
authors.lastname: Samakradhamrongthai
mesh_terms: D000975:Antioxidants / Q000032:analysis*; D062408:Breakfast; D028244:Camellia / Q000737:chemistry*; D002523:Edible Grain / Q000737:chemistry*; D005527:Food, Fortified; D006801:Humans; D010636:Phenols / Q000032:analysis; D010936:Plant Extracts / Q000032:analysis*; D010938:Plant Oils / Q000737:chemistry*; D000073879:Rice Bran Oil; D013662:Tea / Q000737:chemistry*; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis
chemical_list: D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts; D010938:Plant Oils; D013662:Tea; D017392:Thiobarbituric Acid Reactive Substances; D000073879:Rice Bran Oil
keywords: ASSAM tea; Antioxidant ability (EC50); Breakfast cereal; Extract; Rice bran