Extraction of Green Tea Leaves: The use of Different Methods, their Optimization and Comparative Evaluation

Sarwa, Khomendra Kumar; Rudrapal, Mithun; Debnath, Manabendra

doi:10.13005/bbra/1140

Cited by 8 publications

(5 citation statements)

References 12 publications

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“…1 DPPH _ 1, 1-diphenyl-2-picryl-hydrazil, activity is expressed in % inhibition. 2 RP _ Reducing power expressed in mg/g fresh weight, 3 TF-Total flavonoid is expressed in mg/g of rutin equivalent. 4 TP-total phenolics are expressed in mg/g of catechol equivalent.…”

Section: Resultsmentioning

confidence: 99%

Nutrient and Antioxidant Properties of Value Added King Chilli (Capsicum chinense) Products

Kuna¹,

Sahoo²,

Sowmya³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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Section: Resultsmentioning

confidence: 99%

Nutrient and Antioxidant Properties of Value Added King Chilli (Capsicum chinense) Products

Kuna¹,

Sahoo²,

Sowmya³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…The beneficial properties of tea and tea extract are very well known, and have been extensively described in several research articles. The most popular and effective approach for isolating useful compounds from plant materials is solvent extraction [30][31][32]. In the present study, white, green, and black Miang tea samples were selected to represent different types of tea processed using buds and young leaves.…”

Section: Discussionmentioning

confidence: 99%

Beneficial Bio-Extract of Camellia sinensis var. assamica Fermented with a Combination of Probiotics as a Potential Ingredient for Skin Care

et al. 2023

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Biotechnology, cosmetics, and aesthetic remedies are now inextricably intertwined due to the production of alternative, more effective, and safer active ingredients. Additionally, there has been an increase in demand for natural cosmetic ingredients across the globe. Camellia sinensis var. assamica (Miang tea) is a good alternative because of several biological activities, and is commercially cultivated as a resource in northern Thailand. The process of fermentation mediated by probiotics can enhance the bioavailability of compounds, transform bioactive compounds, and decrease chemical solvent use for sustainability. This study aims to apply the functional evaluation of Miang tea bio-extracts to promote skin health. On the basis of their bioactive enzymes, β-glucosidase, and antioxidant properties, the strains Lacticaseibacillus rhamnosus (previously Lactobacillus rhamnosus), Lactiplantibacillus plantarum (previously Lactobacillus plantarum), and Saccharomyces cerevisiae were used as mixed probiotic starter cultures. The activities of white, green, and black Miang tea bio-extracts, including ferric reducing antioxidant power, lipid peroxidation, nitric oxide inhibition, tyrosinase inhibition, collagenase inhibition (MMP-1 and MMP-2), and antimicrobial activity, were all considerable after 7 days of fermentation time. Additionally, phenolic antioxidant compounds (gallic acid, epigallocatechin gallate, caffeic acid, caffeine, and p-coumaric acid) were identified. The current study’s findings can determine the most effective fermentation time and dose of bio-extract, as well as suggest improvements in bioactive compounds for use in skin care formulations. These results will be used for testing on human participants in further work.

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“…The beakerwas then placed in a clean ultrasonic bath (PCI India) for facilitating extraction process. Extraction (sonication) was performed at room temperature for 40 minutes (7).…”

Section: Preparation Of Green Tea Extractmentioning

confidence: 99%

Effect of Green Tea extract mouthwash on Streptococcus mutans count in high caries risk dental students: A Randomized Control Trial

El Naggar,

Ashour

2024

Egyptian Dental Journal

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Context: Dental caries has become one of the most prevalent chronic diseases, with streptococcus mutans count as one of the main causatives. Mouthwashes has been one of the most important methods for bacterial count control. There are many mouthwashes that has been available over the counter but unfortunately, they have many side effects and drawbacks, so this necessitates the search for natural mouthwashes that overcome these side effects with similar antibacterial properties.Aim: The study's objective was to compare how using mouthwashes of green tea extract versus using chlorhexidine affected the number of Streptococcus mutans bacteria. Study design:A brief, double blinded, randomized control clinical trial. Materials and Methods:The study was conducted on a sum of 36 dental students of age range 17 to 23 years that has been split up into two groups; green tea group and chlorhexidine group.Baseline unstimulated saliva samples were collected, and students received instructions to use 5ml of the designated mouthwash to rinse for 7 days two times daily. And finally come back for a salivary sample after the 7 days period and all saliva samples were sent for microbiological analysis.Results: independent and paired t-tests demonstrated that green tea and chlorhexidine both decreased Streptococcus mutans count significantly, with no significant difference between both mouthwashes after a week. Conclusion:Results of this study showed that green tea extract mouthwash has similar antibacterial activity as chlorhexidine mouthwash which is considered the gold standard, so green tea mouthwash may be used as a substitute for the chemical mouthwashes.

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Extraction of Green Tea Leaves: The use of Different Methods, their Optimization and Comparative Evaluation

Cited by 8 publications

References 12 publications

Nutrient and Antioxidant Properties of Value Added King Chilli (Capsicum chinense) Products

Nutrient and Antioxidant Properties of Value Added King Chilli (Capsicum chinense) Products

Beneficial Bio-Extract of Camellia sinensis var. assamica Fermented with a Combination of Probiotics as a Potential Ingredient for Skin Care

Effect of Green Tea extract mouthwash on Streptococcus mutans count in high caries risk dental students: A Randomized Control Trial

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