Table 2 - uploaded by Anupma Sharma
Content may be subject to copyright.
Effect of regional variation on tea constituents

Effect of regional variation on tea constituents

Source publication
Article
Full-text available
In view of the large variation in tea quality, this study aims to fingerprint the best quality of Indian orthodox black tea depending upon the production region, variation of seasons, mechanical grading and processed with altering fermentation timings. HPLC method reported by us earlier has been adapted to separate biochemical constituents in vario...

Context in source publication

Context 1
... black tea samples were collected from three regions of the country (northern, eastern and southern); Kangra, Darjeeling and the Nilgiri valley. The average amounts (% w/w) of catechins, GA and caffeine calcu- lated aer peak area calculations of HPLC chromatograms [ESM_2 in the ESI †] of the tea infusions are given in Table 2. From this study it was observed that the level of catechins was highest in the Kangra region followed by Darjeeling and lowest in Nilgiri. ...

Similar publications

Article
Full-text available
Moisture content ( M C ) plays a crucial role in evaluating the quality of tea processing. However, the current automated production line for green tea heavily relies on manual methods to determine M C , which leads to low productivity and inadequate automation. Therefore, there is an urgent need for a fast, accurate, and convenient M C detection m...
Article
Full-text available
Aim : This study was aimed to formulate a transdermal matrix patch using green tea leaf extract. Materials and methods : The transdermal matrix patch formulation was optimized by the simplex lattice design method. The correlation between responses was analyzed using chemometrics. The observed responses were: 1. the physical properties of the matrix...
Technical Report
Full-text available
Tea, a widely consumed beverage, and a main export crop of Sri Lanka is classified based on different criteria such as: geographical origin, grades and degree of fermentation (e.g.- black tea, green tea). This study was carried out to classify black teas of 6 different geographical origins in Sri Lanka using Raman spectroscopy, an easy, non-destruc...
Article
Full-text available
The objective of this study was to employ multi‐elemental analysis and chemometric multivariate data analysis for identifying the geographical origin of Camellia sinensis cultivated in Vietnam's northeastern region. Ninety‐two tea leaf samples encompassing four distinct varieties were sourced from Bac Can and Thai Nguyen provinces. These samples un...
Article
Full-text available
This paper aims to provide a stable instrumental method for provenance discrimination of Anji-White tea by its distinctive taste. 180 authentic and 60 counterfeit white tea samples were collected for specific geographical origins detection; all of them were measured by electronic tongue coupled with 7 independent sensors. Therefore, chemometrics me...