Oolong tea

Xem 1-6 trên 6 kết quả Oolong tea

Ebook Global tea breeding: Achievements, challenges and perspectives

Ebook "Global tea breeding: Achievements, challenges and perspectives" provides a global review on biodiversity and biotechnology issues in tea breeding and selection. The contributions are written by experts from China, India, Kenya, Sri Lanka, Vietnam, Turkey, Indonesia, Japan, Bangladesh, Korea, Nigeria, and etc., which countries amount to 90% of the world tea production. This book focuses on the germplasm, breeding and selection of tea cultivars for the production of black, green and Oolong teas from the tea plant, Camellia sinensis (L.) O. Kuntze.

400p tachieuhoa 28-01-2024 8 2 Download

Change of polyphenol oxidase activity during oolong tea process

In this study, the changes of PPO activity in oolong tea manufacturing and the relationship of PPO activity and phenolic compounds was conducted. The tea samples were divided into 2 parts: an inactivated enzyme group – treated by microwave (group 1) and an active enzyme group (group 2).

6p viisac 23-09-2023 2 1 Download

Effects of mineral fertilizer doses and ratios on tea yield and quality

Mineral nutrients are essential to plant growth and development. The present study aimed to evaluate the effects of mineral fertilizer doses and N:P:K ratio on growth, yield, and raw material quality of the tea variety PH10 to improve the production of high-quality tea products. The field experiment was conducted from 2015 to 2017.

10p viengels 25-08-2023 2 2 Download
Validation of analytical method and investigation into the effects of brewing temperature on total polyphenol contents in tea infusions prepared from Vietnamese tea products

Produced from leaves of Camellia sinensis L. (Kuntz), tea is among the most common beverages worldwide. Tea plants have been grown in nearly 30 countries. In this study, the FolinCiocalteu method was applied to determine the total polyphenol contents (referred to milligrams gallic acid mass equivalence or GAE) in tea products (one oolong and three ancient teas, including red, green, and white) based on ISO 14502-1:2005 with some modifications, typically ultrasonicassisted single extraction using methanol:water (7:3 v/v) as an extraction solvent at 70oC with the extraction ratio of 0.200:10.

13p viericschmid 12-01-2022 11 0 Download
De novo transcriptome and phytochemical analyses reveal differentially expressed genes and characteristic secondary metabolites in the original oolong tea (Camellia sinensis) cultivar ‘Tieguanyin’ compared with cultivar ‘Benshan’

The two original plants of the oolong tea cultivar (‘Tieguanyin’) are “Wei shuo” ‘Tieguanyin’—TGY (Wei) and “Wang shuo” ‘Tieguanyin’—TGY (Wang). Another cultivar, ‘Benshan’ (BS), is similar to TGY in its aroma, taste, and genetic make-up, but it lacks the “Yin Rhyme” flavor. We aimed to identify differences in biochemical characteristics and gene expression among these tea plants.

24p visilicon2711 20-08-2021 6 1 Download
TRÀ DƯỢC THẢO

Hiện nay, trên thị trường Việt Nam cũng như tại hải ngoại đều tràn ngập các loại trà và trà dược thảo. Trà (tea) thì ai cũng đều biết rồi, thí dụ như trà đen, trà xanh, trà trắng, trà oolong, v.v... Trà được sản xuất từ lá của một loại thảo mộc, có tên khoa học là Camellia sinensis. Màu sắc, hương vị, độ chát, tính bổ dưỡng và hàm lượng chất chống oxy hóa của các loại trà khác nhau tùy theo cách ủ và cách biến chế. Bên nhà, người mình chia các loại trà ra...

25p sinhtobo111 25-04-2011 101 17 Download