EXTRACTION OF CAFFEINE FROM TEA AND DEVELOPMENT OF CAFFEINATED FRUIT JUICE
Journal: Journal of Food Chemistry and Nutrition (Vol.1, No. 1)Publication Date: 2013-06-30
Authors : Iftekhar Ahmad; Tahmina Parveen; Abu Yousuf; Belal H. Sikder;
Page : 01-05
Keywords : Caffeine; fruit juice; physicochemical; microbial; sensory analysis;
Abstract
Developing a new product was the objectives of this work. For this purpose isolated caffeine from tea was added to fruit juices to make a drink that would fulfill the need of nutrition as well as stimulation. Three fruits (Pineapple, Orange, Malta) were chosen for the experiment and caffeine was extracted from tea by liquid ? liquid extraction method. Extracted caffeine from made tea was purified before addition to the beverage. Preservatives, added sugar or any other additives were not used in the juice.? Fresh & Caffeinated juices were stored at three different temperatures 25oC, 4oC and -15oC to observe their shelf life as well as physicochemical and microbial changes during six days of storage. Fresh and caffeinated juices stored at room temperature (25oC) became unacceptable after 1 day of storage, in case of 4oC it was 5 days. The juices stored at deep freezing temperature (-15oC) remained acceptable up to 21 days. During storage pH of fresh and caffeinated juices were increased while acidity and vitamin C content decreased gradually. Microbial analysis showed presence of fungus in fresh and caffeinated juices and microbial loads were counted by SPC (Standard Plate Count) method.
Other Latest Articles
- Effective Utilization of Information Technology Services by Employees in Public Sector: A Study of Geita District Council Tanzania
- Green Marketing: Solving Dual Purpose of Marketing and Corporate Social Responsibility
- An Empirical Study about Why Dissatisfaction Arises Among the Employees and What It Consequences: Bangladesh Perspective
- Quality of Work Life and Ego-Strength as a Predictor of Organizational Commitment: A Study of Managerial Personnel
- Public Expenditure and Economic Growth in Nigeria (A Granger Causality Approach) 1983-2012
Last modified: 2015-02-15 21:46:11