2025Journal articleFree to read
Jeanine Therese V. Perez, Lyx Jady Fy N. Perez, Femma Joy A. Padroncillo, Kirk Andrew V. Parreño, Marti Angela J. Policarpio, Alliah Rose B. Porras, Adriel Amadei S. Salamat, Rachel Joy S. Sararaña, Lyle Josh C.l Secapuri, Ann Marie Heather T. Tacluyan, Daiel Dwight G. Tosoc, Joel B. Jr. Vito, and 4 more
American Journal of Life Science and Innovation
Milk teas and fruit teas are popular as a refreshment, but their percent antioxidant properties need to be determined. In this study, the antioxidant activities of selected commercialized milk teas (Matcha, Okinawa, and Winter Melon) and fruit teas (Green Apple, Kiwi, and Lychee) were determined using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay in terms of % scavenging activity. In that assay, the plates with milk teas and fruit teas were incubated in the dark and covered with aluminum foil for 30 minutes at room temperature before being measured for absorbance at 570 nm with a microplate reader. They were kept out of the light until they were evaluated for analysis. Within 30 minutes of incubation, the discoloration from purple to yellow was observed. Three (3) trials with three (3) replicates were carried out with negative control (water with sugar and creamer for milk tea and water with sugar for fruit tea) and positive control (Vitamin C). Using one-way ANOVA, the Matcha (mean = 62.9, sd = 2.6) Okinawa (mean = 46.4, sd = 5.9), and Winter Melon (mean = 61.6, sd = 2.8) milkteas have anti-oxidant activities when compared to the negative control (mean = 0.0, sd = 0.0) (p < .05) Both Matcha and Winter Melon have the best antioxidant activities, but not comparable to the positive control, Vitamin C (mean = 98.7; sd = 0.62) (p < .05). While the Green apple fruit tea (mean = 95.5; SD = 2.4) Kiwi fruit tea (mean = 97.3, SD = 1.5), and Lychee fruit tea (mean = 94.4; sd = 1.3) (p > .05) have comparable antioxidant activities when compared to the negative control (mean sd = 0.0). Kiwi fruit tea has the best antioxidant activity and comparable to Vitamin C (mean = 98.7; sd = 0.62). This study scientifically established that both Matcha and Winter Melon commercial milk teas…
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Study type
Sensory / consumer
Taste, aroma, color and how people perceive matcha.
Assigned automatically from the title, abstract and subject terms.
Topics
Matcha is a main subject here (named in the keywords).
Jeanine Therese V. Perez, Lyx Jady Fy N. Perez, Femma Joy A. Padroncillo, Kirk Andrew V. Parreño, Marti Angela J. Policarpio, Alliah Rose B. Porras, … Ma. Socorro Gonzaga-Leong-on. (2025). Antioxidant Activities of Selected Milk Teas and Fruit Teas Using 2,2-Diphenyl-1-Picrylhydrazyl (DPPH) Assay. American Journal of Life Science and Innovation. https://doi.org/10.54536/ajlsi.v4i2.5050
DOI: 10.54536/ajlsi.v4i2.5050
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