Development and Properties of Green Tea with Reduced Caffeine
Journal Title: Journal of Experimental Agriculture International - Year 2017, Vol 17, Issue 6
Abstract
Caffeine is one of the main components of green tea and has side effects such as sleeplessness. Senior citizens, children, and pregnant woman should avoid tea despite its known beneficial effects. In this study, we developed green tea with reduced caffeine content (low caffeine tea) as a palatable tea that can be offered to everyone. To reduce the tea’s caffeine content, we subjected the plucked tea leaves to a hot-water spray process, and successfully produced a low caffeine tea infusion with 30% the caffeine content. The concentrations of other main components, such as catechins and theanine, in the low caffeine tea infusion did not differ from the control. Further, the physiological function of the tea was assessed; the anti-oxidative activity was investigated using a stable free radical and the anti-lipase activity using an artificial substrate. There were no significant differences between the infusions of low caffeine tea and green tea in anti-oxidative and anti-lipase activities. The results showed that our developed low caffeine tea could be an attractive high quality tea with health benefits for everyone.
Authors and Affiliations
Kieko Saito, Yoriyuki Nakamura
Keywords
Related Articles
- EP ID EP315394
- DOI 10.9734/JEAI/2017/36537
- Views 105
- Downloads 0
Response of Kenaf to Early and Late Cropping Seasons in Cassava-Maize Based Intercrops
Field experiments were conducted in 2013 and 2014 to study the response of kenaf to early and late cropping seasons in relay intercropping system with cassava-maize based intercrop at Ibadan Research Farm of the Institut...
Production and Qualitative Aspects of Tomato Fruits under Leaf Fertilizer Applications with Resistance Bioinducers
The tomato is one of the cultures of great interest to the global agribusiness, especially to meet the industrial demand, resulting in income and quality of life to the producer. Given the complexity of culture, new tech...
AMMI Determination of Stability for Oil and Protein Content in Soybean (Glycine max L. Merrill) Seed in Zambia
Aims: The aim of the study was determine the yield and stability of oil and protein content of different genotypes in different locations in Zambia. The specific objectives were to characterize the test soybean genotypes...
Yield Traits and Water Productivity Responses among Rice Varieties (Oryza sativa L.) Grown in A Fadama Ecosystem in Akure, Southwestern Nigeria
Drought is the most important factor limiting rice productivity under rainfed system of the humid tropics. Field experiments were conducted to determine the effects of soil water management strategies (growth on residual...
Influence of Moringa Seed Powder and Liquid Gold on Available Phosphorus and Potassium Pools of a P-deficient Alfisol at Samaru, Nigeria
The low fertility constraint of the soils in the northern Guinea savannah of Nigeria necessitates the application of external nutrient supplements for sustainable crop production. An incubation study was undertaken to ev...