Determination of the various extraction solvent effects on polyphenolic profile and antioxidant activities of selected tea samples by chemometric approach
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Food Measurement and Characterization"
DOI: 10.1007/s11694-020-00376-6
Abstract: In this study, the effect of solvent type and solvent concentration on the ultrasound assisted extraction (UAE) of polyphenols from popular tea samples (black, green, mate, blackberry and black mulberry) which have high antioxidant activities… read more here.
Keywords: solvent; tea samples; antioxidant activities; extraction solvent ... See more keywords
A sip of joy: Straw materials can influence emotional responses to, and sensory attributes of cold tea
Sign Up to like & getrecommendations! Published in 2021 at "Food Quality and Preference"
DOI: 10.1016/j.foodqual.2020.104090
Abstract: Abstract While the use of reusable drinking straws has become more popular in recent years, there have been no previous studies regarding associations of drinking straw materials with perception and liking of beverages. This study… read more here.
Keywords: emotional responses; cold tea; sip joy; tea samples ... See more keywords
Determination of bisphenol A in tea samples by solid phase extraction and liquid chromatography coupled to mass spectrometry
Sign Up to like & getrecommendations! Published in 2019 at "Microchemical Journal"
DOI: 10.1016/j.microc.2019.03.026
Abstract: Abstract A simple, fast, sensitive and selective method for the extraction of Bisphenol A (BPA) from tea samples has been developed. Due to the low concentration of the analyte, sample preparation using Solid Phase Extraction… read more here.
Keywords: solid phase; extraction; liquid chromatography; phase extraction ... See more keywords
A biosensor based on a graphene nanoribbon/silver nanoparticle/polyphenol oxidase composite matrix on a graphite electrode: application in the analysis of catechol in green tea samples
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Chemistry"
DOI: 10.1039/c8nj02325e
Abstract: The present report demonstrates the development of a highly sensitive and selective electrochemical biosensor for catechol detection by immobilizing crude polyphenol oxidase (PPO) enzyme onto a graphite (Gr) electrode modified using graphene nanoribbons (GNRs) decorated… read more here.
Keywords: detection; analysis; tea samples; catechol ... See more keywords
Polyphenol Detection in Mate Tea Samples Using Iron Tetrasulfonated Phthalocyanine Modified Screen-Printed Electrode
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2019.2931423
Abstract: Fast, inexpensive, and efficient methods to determine polyphenols content are of interest to the food industry. Here, we propose an easy and fast sensor for the determination of polyphenol content in tea samples from a… read more here.
Keywords: mate; iron tetrasulfonated; tea; screen printed ... See more keywords
Rapid and Sensitive Determination of Methylxanthines in Commercial Brands of Tea Using Ultra-High-Performance Liquid Chromatography-Mass Spectrometry
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Analytical Chemistry"
DOI: 10.1155/2019/2926580
Abstract: Recently, chromatographic techniques have the potential to be greener in order to reduce the environmental impact. In this work, a new simple, sensitive, efficient, and green analytical method based on UHPLC-MS has been developed for… read more here.
Keywords: determination methylxanthines; caffeine theobromine; mass; tea samples ... See more keywords
Modeling of Total Phenolic contents in Various Tea samples by Experimental Design Methods
Sign Up to like & getrecommendations! Published in 2018 at "Open Chemistry"
DOI: 10.1515/chem-2018-0082
Abstract: Abstract Tea, from the old ages to the day, is widely consumed both for enjoyment and health care due to its positive effects. The consumption of these products is increasing day by day as a… read more here.
Keywords: extraction; tea samples; experimental design; tea ... See more keywords
Use of Arduino in the Development of a New and Fast Automated Online Preconcentration System Based on Double-Knotted Reactor for the Mn Determination in Tea Samples by Flame Atomic Absorption Spectrometry (F AAS)
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Brazilian Chemical Society"
DOI: 10.21577/0103-5053.20190118
Abstract: In the present paper, an automated online preconcentration system based on the use of two knotted reactors (KR) was developed for Mn determination in tea samples by flame atomic absorption spectrometry (F AAS). The system… read more here.
Keywords: automated online; system; determination; tea samples ... See more keywords
Identification of Key Aroma Compounds Responsible for the Floral Ascents of Green and Black Teas from Different Tea Cultivars
Sign Up to like & getrecommendations! Published in 2022 at "Molecules"
DOI: 10.3390/molecules27092809
Abstract: Chemicals underlying the floral aroma of dry teas needs multi-dimensional investigations. Green, black, and freeze-dried tea samples were produced from five tea cultivars, and only ‘Chunyu2’ and ‘Jinguanyin’ dry teas had floral scents. ‘Chunyu2’ green… read more here.
Keywords: black tea; tea cultivars; green black; aroma ... See more keywords