Impact of Pasteurization on Ascorbic Acid in Orange Juice (Overview)
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چکیده
منابع مشابه
Analysis of ascorbic acid, citric acid and benzoic acid in orange juice
Food additives, such as antioxidants and preservatives, are added to increase the shelf life of food items. In this Application Note, we describe a method to quantify an antioxidant (vitamin C) and preservatives (citric acid, benzoic acid) in orange juice. The method was developed on an Agilent 1260 Infinity LC system using an Agilent Poroshell EC-C18 column. Partial method validation was perfo...
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Estimation of Ascorbic Acid in Orange Juice by a Chronometric Method
The redox couple between ascorbic acid (vitamin C) oxidation and reduction of the semiquinoid form of p-phenylenediamine (PPDA) is the basis of a new chronometric assay of vitamin C. Commercial horseradish peroxidase or citrus peroxidase isolated from seeds catalyzes the hydroperoxidation of PPDA through a re versible semiquinoid form to a colored condensa tion product. Ascorbic acid interrupts...
متن کاملEffect on orange juice of batch pasteurization in an improved pilot-scale microwave oven.
The effects on orange juice batch pasteurization in an improved pilot-scale microwave (MW) oven was evaluated by monitoring pectin methyl-esterase (PME) activity, color, carotenoid compounds and vitamin C content. Trials were performed on stirred orange juice heated at different temperatures (60, 70, 75, and 85 degrees C) during batch process. MW pilot plant allowed real-time temperature contro...
متن کاملAscorbic acid supplementation and regular consumption of fresh orange juice increase the ascorbic acid content of human milk: studies in European and African lactating women.
BACKGROUND Little is known about the influence of an increased intake of ascorbic acid (AA) on human milk AA output. OBJECTIVE We aimed to compare human milk AA content in European and African women and to evaluate the influence of increased AA intake on human milk AA output. DESIGN Apparently healthy lactating women were recruited. AA was analyzed by titration with 2,6-dichlorophenol-indop...
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ژورنال
عنوان ژورنال: Learning & Education
سال: 2020
ISSN: 2251-2802
DOI: 10.18282/l-e.v9i3.1584