Log in

Relevant bibliographies by topics / Camellia sinensis leaves / Journal articles

To see the other types of publications on this topic, follow the link: Camellia sinensis leaves.

Journal articles on the topic 'Camellia sinensis leaves'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Camellia sinensis leaves.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Oktaviana, Monica, Johannes C. Prihadi, and Lucky H. Moehario. "EFFECTIVITY OF 50% ETHANOL EXTRACT OF CAMELLIA SINENSIS TEA LEAVES AS HAND ANTISEPTIC." Damianus Journal of Medicine 20, no. 1 (2021): 9–17. http://dx.doi.org/10.25170/djm.v20i1.1835.

Full text

Abstract:

Introduction: : Practicing hand hygiene is a way to control an infection. The recent COVID-19 pandemic, hand hygiene has become the necessity. Using antiseptic which contain chemical active ingredients causes skin problem. Camellia sinensis is a natural ingredient which its antimicrobial properties is due to the presence of catechin. The study was aimed to determine the effectivity of ethanol extract of Camellia sinensis tea leaves as hand antiseptic. Methods: This research was a comparative experimental analytic to 32 respondents conducted in the Microbiology Laboraroty of Faculty Medic

APA, Harvard, Vancouver, ISO, and other styles

2

Tran, Lan T. Q. "Separation of active constituents in some medicinal plants by thin layer chromatography." Journal of Agriculture and Development 17, no. 05 (2018): 60–67. http://dx.doi.org/10.52997/jad.8.05.2018.

Full text

Abstract:

Separation and identification of the active pharmacological compounds from some medicinal plants (Citrus aurantifolia, Rhodomyrtus tomentosa, Camellia sinensis) by Thin Layer Chromatography (TLC) showed the yields of crude extracts obtained from Citrus aurantifolia, Rhodomyrtus tomentosa and Camellia sinensis leaves at 1.5%, 5.62% and 10.4% respectively. Toluene: ethyl acetate (93:7) (v:v) solvent was suitable for the separation of active compounds in crude extract of Citrus aurantifolia, Rhodomyrtus tomentosa leaves while chloroform: ethylacetate: formic acid (5:4:1) (v:v:v) solvent was suita

APA, Harvard, Vancouver, ISO, and other styles

3

SONG, ZI-WEI, XIAO-FENG XUE, and XIAO-YUE HONG. "One new genus and four new species of Phyllocoptinae (Acari: Eriophyoidea) from Fujian Province, southeastern China." Zootaxa 1894, no. 1 (2008): 42–52. http://dx.doi.org/10.11646/zootaxa.1894.1.3.

Full text

Abstract:

One new genus and four new species of the Phyllocoptinae from Fujian Province, southeastern China are described and illustrated. They are Fujianacarus gen. nov. and Fujianacarus wisterianis sp. nov. on Wisteria sinensis (Sims) Sweet (Fabaceae); Epitrimerus buxsinica sp. nov. on Buxus sinica (Rehd. et Wils.) Cheng (Buxaceae); Shevtchenkella camelliae sp. nov. on Camellia sinensis (L.) O. Ktze. (Theaceae) and Jutarus dolichocladae sp. nov. on Bambusa dolichoclada Hayata (Poaceae). All species are vagrant on the undersurface of leaves, causing no apparent damage to the host plant.

APA, Harvard, Vancouver, ISO, and other styles

4

Oh, Hyun-Woo, Byung-Chun Kim, Kang Hyun Lee, et al. "Paenibacillus camelliae sp. nov., isolated from fermented leaves of Camellia sinensis." Journal of Microbiology 46, no. 5 (2008): 530–34. http://dx.doi.org/10.1007/s12275-008-0233-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Chen, Yingjuan, Liang Zeng, Na Shu, et al. "Pestalotiopsis-Like Species Causing Gray Blight Disease on Camellia sinensis in China." Plant Disease 102, no. 1 (2018): 98–106. http://dx.doi.org/10.1094/pdis-05-17-0642-re.

Full text

Abstract:

Gray blight of tea, caused by several Pestalotiopsis-like species, is one of the most destructive foliar diseases in tea cultivation yet the characteristics of these pathogens have not been confirmed until now. With morphological and multigene phylogenetic analyses, we have identified the gray blight fungi as Pseudopestalotiopsis camelliae-sinensis, Neopestalotiopsis clavispora, and Pestalotiopsis camelliae. Phylogenetic analyses derived from the combined internal transcribed spacer, β-tubulin, and translation elongation factor 1-α gene regions successfully resolved most of the Pestalotiopsis-

APA, Harvard, Vancouver, ISO, and other styles

6

Kobayashi, Keiko, Toshiaki Teruya, Kiyotake Suenaga, Yoko Matsui, Hideki Masuda, and Hideo Kigoshi. "Isotheasaponins B1–B3 from Camellia sinensis var. sinensis tea leaves." Phytochemistry 67, no. 13 (2006): 1385–89. http://dx.doi.org/10.1016/j.phytochem.2006.05.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Nguyen, Kieu-Oanh Thi, Phuong-Linh Nguyen, Hoang-Long Le, and Huyen-Thao Le. "Discriminative Chemical Profiles of Shan Tuyet Tea (Camellia sinensis var. Shan) and Sinensis Tea (Camellia sinensis var. sinensis) Collected in Ta Xua, Son La, Vietnam and Their Correlation With Antioxidant Activity." Natural Product Communications 17, no. 9 (2022): 1934578X2211284. http://dx.doi.org/10.1177/1934578x221128410.

Full text

Abstract:

Chè Shan Tuyet ( Camellia sinensis var. Shan) is one of the precious tea resources of Vietnam; however, there is little research on its chemical composition. The purpose of this study was to characterize the main quality components, such as free amino acids and catechins, in Camellia sinensis var. Shan and Camellia sinensis var. sinensis collected in the high mountain of Ta Xua, Son La, Vietnam by using an amino acid analyzer and liquid chromatography coupled with tandem mass spectrometry, respectively. Principal component analysis (PCA) discrimination analysis of chemical profiles revealed a

APA, Harvard, Vancouver, ISO, and other styles

8

Bhagath, Prof. "Camellia sinensis disease Detection using GAN." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 05 (2025): 1–9. https://doi.org/10.55041/ijsrem48668.

Full text

Abstract:

Abstract— this project focuses on developing an AI-driven solution for detecting diseases in tea leaves. By using Generative Adversarial Networks (GANs), we were able to create engineered pictures of unhealthy tea takes off, which made a difference make strides the dataset and improve the execution of our illness discovery show. The Convolutional Neural Network(CNN) classifier precisely identified both healthy and diseased leaves. Additionally, we created a fertilizer recommendation system based on soil health factors like pH, nitrogen levels, and organic carbon, providing farmers with customi

APA, Harvard, Vancouver, ISO, and other styles

9

bharathi, J. Divya, Dr D. Chandra Prabha, and Dr R. Ragunathan. "Phytochemical screening, invitro antioxidant and anti-inflammatory activity of polyphenolic fraction extracted from Camellia sinensis bud extract." Journal of University of Shanghai for Science and Technology 23, no. 05 (2021): 199–210. http://dx.doi.org/10.51201/jusst/21/05134.

Full text

Abstract:

Tea is one of the most widely consumed beverages in the world today, second only to water, well ahead of coffee, beer, wine and carbonated soft drinks. The tea plant, Camellia sinensis, is a member of the Theaceae family and black, oolong, white and green tea are produced from its leaf and buds. Tea beverage is an infusion of the dried leaves of Camellia sinensis. The present study aims to screen the phytochemicals screening, in vitro antioxidant and anti-inflammatory activity of polyphenolic compound extracted from Camellia sinensis bud extract. The qualitative phytochemical results revealed

APA, Harvard, Vancouver, ISO, and other styles

10

Shaba, P., N.N. Pandey, O.P. Sharma, J.R. Rao, and R.K. Singh. "Trypanocidal potential of Camellia sinensis (Green Tea)." Greener Journal of Agricultural Sciences 1, no. 3 (2011): 55–61. https://doi.org/10.5281/zenodo.3372428.

Full text

Abstract:

In search for new trypanocidal compounds from natural source, methanolic plant extract (MPE) of <em>C. sinensis</em> leaves at different concentrations (250-1000 µg/ml) was evaluated against <em>Trypansoma evansi</em> on Vero cell line grown in Dulbecco’s Modified Eagle Medium (DMEM) at appropriate conditions. <em>In vivo</em> infectivity assessment of incubated extracts and medium with trypanosomes was carried out in mice.  <em>In vitro</em> cytotoxicity of test extract at concentrations (100-1.56 µg/ml) was carried out on Vero ce

APA, Harvard, Vancouver, ISO, and other styles

11

Zhou, Xiaochen, Lanting Zeng, Yingjuan Chen, et al. "Metabolism of Gallic Acid and Its Distributions in Tea (Camellia sinensis) Plants at the Tissue and Subcellular Levels." International Journal of Molecular Sciences 21, no. 16 (2020): 5684. http://dx.doi.org/10.3390/ijms21165684.

Full text

Abstract:

In tea (Camellia sinensis) plants, polyphenols are the representative metabolites and play important roles during their growth. Among tea polyphenols, catechins are extensively studied, while very little attention has been paid to other polyphenols such as gallic acid (GA) that occur in tea leaves with relatively high content. In this study, GA was able to be transformed into methyl gallate (MG), suggesting that GA is not only a precursor of catechins, but also can be transformed into other metabolites in tea plants. GA content in tea leaves was higher than MG content—regardless of the cultiva

APA, Harvard, Vancouver, ISO, and other styles

12

Asmah, Nur, Indrya Kirana Mattulada, and Arnetta Zahra Atifah Dodo. "Antibacterial Assay of Green Tea (Camellia Sinensis L) Against the Growth of Enterococcus faecalis." Journal of Syiah Kuala Dentistry Society 8, no. 2 (2023): 211–16. http://dx.doi.org/10.24815/jds.v8i2.36627.

Full text

Abstract:

Background: Enterococcus faecalis (E. faecalis) is often reported as an infectious agent in tooth root canals. Green tea leaves (Camellia sinesis L) contain active substances, namely catechins, which can act as an antibacterial. Research. Objective: To determine the antibacterial effectiveness of green tea extract (Camellia sinensis l) against the growth of Enterococcus faecalis bacteria. Methods: Researchers carry out tests in the laboratory, which are called laboratory experimental tests. The form of this research is Post-test Only Control Design. Researchers took samples using a purposive s

APA, Harvard, Vancouver, ISO, and other styles

13

Niu, Miao, Ranyang Li, Xiongyu Li, et al. "Insights into the Metabolite Profiles of Two Camellia (Theaceae) Species in Yunnan Province through Metabolomic and Transcriptomic Analysis." Biomolecules 14, no. 9 (2024): 1106. http://dx.doi.org/10.3390/biom14091106.

Full text

Abstract:

Tea (Camellia sinensis) falls into the family Theaceae, is a valuable commercial crop, and tea products made from its buds and young leaves are favored by consumers all over the world. The more common Thea plant is Camellia sinensis (C. sinensis), but its most important relative, Camellia taliensis (C. taliensis), is also utilized by locals in the area of cultivation to manufacture tea. In this investigation, C. taliensis (DL) and C. sinensis (QJZ) were characterized in terms of their agronomic traits, physicochemical indices, metabolomics, and transcriptomics. The leaf area of DL is larger th

APA, Harvard, Vancouver, ISO, and other styles

14

Sry Hardiyanti, Andi, Muhammad Ashar Muslimin, and Erna Erawaty. "PENETAPAN KADAR KAFEIN DAUN Camellia sinensis SECARA EKSTRAKSI PELARUT." Nusantara Hasana Journal 4, no. 9 (2025): 63–68. https://doi.org/10.59003/nhj.v4i9.1330.

Full text

Abstract:

Tea is a medicinal plant with many benefits. These include as an anticancer, antioxidant, antimicrobial, antibacterial, and prevention of osteorosclerosis. The Camellia sinensis plant produces tea from its leaves and shoots. Caffeine is one of the ingredients in tea plants. The purpose of this study was to determine the caffeine content of Camellia sinensis. The research method uses ether for the sample socletation process, then heated. Furthermore, methyl red indicator to identify caffeine then titrated with 0.2 N NaOH and weighed the caffeine content % (b/b). The results obtained from the so

APA, Harvard, Vancouver, ISO, and other styles

15

Misnarliah and Andi Ernawati. "EFEKTIVITAS ANTIBAKTERI EKSTRAK DAUN TEH HIJAU TERHADAP BAKTERI MYCOBACTERIUM TUBERCULOSIS." Jurnal Biogenerasi 10, no. 1 (2024): 160–65. https://doi.org/10.30605/biogenerasi.v10i1.4431.

Full text

Abstract:

Tuberculosis is still a global health problem. Prolonged treatment of tuberculosis and using several anti-tuberculosis drugs (OAT) can cause side effects, one of which is multidrug resistance. Cases of multidrug-resistant (MDR) and extensively drug-resistant (XDR) Mycobacterium strains continue to increase. . Research and development of active compounds from medicinal plants to achieve more effective tuberculosis treatment is still being promoted. This research aims to determine the potential and effectiveness of green tea plant (Camellia sinensis) leaf extract in inhibiting the growth of Myco

APA, Harvard, Vancouver, ISO, and other styles

16

Ogawa, Kenji, and Jae-Hak Moon. "A Study on Tea Aroma Formation Mechanism: Alcoholic Aroma Precursor Amounts and Glycosidase Activity in Parts of the Tea Plant." Zeitschrift für Naturforschung C 50, no. 7-8 (1995): 493–98. http://dx.doi.org/10.1515/znc-1995-7-805.

Full text

Abstract:

We have shown in molecular basis that alcoholic tea aroma is mainly formed by endogenous enzymatic hydrolysis of glycosidic aroma precursors during manufacturing. Amounts of alcoholic aroma precursor and glycosidase activity in each part of the tea shoot ( Camellia sinensis var. sinensis cv Yabukita and a hybrid of var. assamica & var. sinensis cv Izumi) were indirectly measured by means of a crude enzyme assay. The aroma precursors were abundant in young leaves and decreased as the leaf aged. Glycosidase activity also decreased as leaves aged, but was high in stems.

APA, Harvard, Vancouver, ISO, and other styles

17

THAMBUGALA, KASUN, DINUSHANI DARANAGAMA, SAGARIKA KANNANGARA, and THENUKA KODITUWAKKU. "Revealing the endophytic mycoflora in tea (Camellia sinensis) leaves in Sri Lanka: the first comprehensive study." Phytotaxa 514, no. 3 (2021): 247–60. http://dx.doi.org/10.11646/phytotaxa.514.3.5.

Full text

Abstract:

Endophytic fungi are a diverse group of microorganisms that live asymptomatically in healthy tissues of host and they have been reported from all kinds of plant tissues such as leaves, stems, roots, flowers, and fruits. In this study, fungal endophytes associated with tea leaves (Camellia sinensis) were collected from Kandy, Kegalle, and Nuwara Eliya districts in Sri Lanka and were isolated, characterized, and identified. A total of twenty endophytic fungal isolates belonging to five genera were recovered and ITS-rDNA sequence data were used to identify them. All isolated endophytic fungal str

APA, Harvard, Vancouver, ISO, and other styles

18

Nawangsari, Desi. "FORMULASI SEDIAAN MASKER ANTIOKSIDAN DARI EKSTRAK TEH HIJAU (CAMELLIA SINENSIS)." Viva Medika: Jurnal Kesehatan, Kebidanan dan Keperawatan 10, no. 2 (2019): 109–18. http://dx.doi.org/10.35960/vm.v10i2.451.

Full text

Abstract:

Abstract  Research has been carried out on the formulation of maskantioxidant preparations containing green tea leaf extract. The study begins with testing the antioxidant activity of ethanol extract of green tea leaves with a free radical reduction method of 1,1-diphenyl-2-picrylhydrazyl using visible spectrophotometry. Testing of antioxidant activity showed that the ethanol extract of green tea leaves gave an IC50 value of 3.17µg / mL. Formulations of gel masks made were F0 (base without active substances), F1 (base + concentration of ethanol extract of green tea leaves for IC50

APA, Harvard, Vancouver, ISO, and other styles

19

Li, Yeyun, Shinjiro Ogita, Chaman Ara Keya, and Hiroshi Ashihara. "Expression of Caffeine Biosynthesis Genes in Tea (Camellia sinensis)." Zeitschrift für Naturforschung C 63, no. 3-4 (2008): 267–70. http://dx.doi.org/10.1515/znc-2008-3-417.

Full text

Abstract:

Using semi-quantitative reverse transcription-PCR, we studied the expression of genes encoding caffeine synthase (TCS1), inosine-5′-monophosphate dehydrogenase (TIDH), Sadenosyl- l-methionine synthase (sAMS), phenylalanine ammonia-lyase (PAL) and α-tubulin (Tua1) in young and mature leaves, stems and roots of 4-month-old tea seedlings and young and old tea tissue cultures. The amounts of transcripts of TCS1 were much higher in young leaves than in other parts of the plant. Expression of TIDH was greater in leaves than in other parts. Little difference in the amounts of transcripts of PAL, sAMS

APA, Harvard, Vancouver, ISO, and other styles

20

Wang, Shuangshuang, Xiaozeng Mi, Zhiran Wu, Lixin Zhang, and Chaoling Wei. "Characterization and Pathogenicity of Pestalotiopsis-Like Species Associated With Gray Blight Disease on Camellia sinensis in Anhui Province, China." Plant Disease 103, no. 11 (2019): 2786–97. http://dx.doi.org/10.1094/pdis-02-19-0412-re.

Full text

Abstract:

Gray blight disease, caused by Pestalotiopsis-like fungi, is one of the deadliest threats to tea (Camellia sinensis) production. However, little information is known about the traits and characteristics of this pathogen. Here, a systematic survey was performed, and a total of 20 representative isolates were obtained from the leaves of tea plants affected by gray blight in two main tea plantations located in Anhui Province, China. Further analyses showed that two isolates were identified as Neopestalotiopsis ellipsospora, three isolates were regarded as Pseudopestalotiopsis chinensis, one isola

APA, Harvard, Vancouver, ISO, and other styles

21

Kanegae, Ayaka, Arisa Sakamoto, Hideyuki Nakayama, et al. "New phenolic compounds from Camellia sinensis L. fermented leaves." Journal of Natural Medicines 67, no. 3 (2012): 652–56. http://dx.doi.org/10.1007/s11418-012-0704-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Marzuki, A., V. Suryanti, and A. Virgynia. "Spectroscopic Study of Green Tea (Camellia sinensis)Leaves Extraction." IOP Conference Series: Materials Science and Engineering 193 (April 2017): 012049. http://dx.doi.org/10.1088/1757-899x/193/1/012049.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Singh, Usha Rani. "Tea production, major constituents and its effects on human health- a review." Anusandhaan - Vigyaan Shodh Patrika 9, no. 1 (2021): 89–95. https://doi.org/10.22445/avsp.v9i1.17.

Full text

Abstract:

Tea is a popular beverage across the world after water, which is brewed from the fresh leaves of tea shrub Camellia sinensis. Camellia sinensis belong to family Theaceae. Manufacture of different types of tea such as green, black, white and oolong depending on the post-harvest treatment, such as withering, rolling, fermentation and roasting. The tea leaves are 4 to15 cm long. Tea mainly contains the biologically active polyphenols, caffeine, minerals and trace amounts of vitamins, amino acids, alkaloids and carbohydrates. Tea is rich in natural antioxidants possesses various health benefits ac

APA, Harvard, Vancouver, ISO, and other styles

24

Hasegawa, Toshio, Kensuke Akutsu, Yasuhiro Kishi, and Kouji Nakamura. "Constituents of the Green Tea Seeds of Camellia sinensis." Natural Product Communications 6, no. 3 (2011): 1934578X1100600. http://dx.doi.org/10.1177/1934578x1100600314.

Full text

Abstract:

Green tea ( Camellia sinensis) leaves are known to contain active ingredients such as catechins and caffeine, and are widely useful materials. Recently, green tea flowers also have been in the spotlight. However, little attention has been paid to the tea seeds. In this work, the constituents of green tea seeds and green tea leaves were compared. Caffeine was found in the seeds, whereas catechins (usually obtained from green tea leaves) were not observed. Next, we investigated the constituents of hexane extracts and methanol extracts of green tea seeds. We found that the hexane extracts contain

APA, Harvard, Vancouver, ISO, and other styles

25

van der Ent, Antony, Peter M. Kopittke, David J. Paterson, Lachlan W. Casey, and Philip Nti Nkrumah. "Distribution of aluminium in hydrated leaves of tea (Camellia sinensis) using synchrotron- and laboratory-based X-ray fluorescence microscopy." Metallomics 12, no. 7 (2020): 1062–69. http://dx.doi.org/10.1039/c9mt00300b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

SUWANNARACH, NAKARIN, JATURONG KUMLA, and SAISAMORN LUMYONG. "Spegazzinia camelliae sp. nov. (Didymosphaeriaceae, Pleosprales), a new endophytic fungus from northern Thailand." Phytotaxa 483, no. 2 (2021): 117–28. http://dx.doi.org/10.11646/phytotaxa.483.2.4.

Full text

Abstract:

A new endophytic ascomycete, described herein as Spegazzinia camelliae, was isolated from leaves of Camellia sinensis var. assamica collected from Nan Province, Thailand. This species is characterized by basauxic conidiophores and dark brown to blackish brown α and β conidia. It can be distinguished from previously described Spegazzinia species by the spine length of the α conidia and the size of the β conidia. Multi-gene phylogenetic analyses of the small subunit (SSU), large subunit (LSU) and internal transcribed spacers (ITS) of the nuclear ribosomal DNA (rDNA) and the translation elongatio

APA, Harvard, Vancouver, ISO, and other styles

27

Putra, Mega Memory Rahasa, and Kurnia Penta Seputra. "Revealing the Potency of Camelia sinensis and Serenoa repens as Purinoreceptor Inhibitor for Benign Prostatic Hyperplasia Treatment through in Silico Study." Journal of Biomedicine and Translational Research 10, no. 2 (2024): 75–84. http://dx.doi.org/10.14710/jbtr.v10i2.21211.

Full text

Abstract:

Background: Benign prostatic hyperplasia (BPH) is the most common prostate disease in elderly men that leads to a significant deterioration in patients' quality of life (QoL). Pharmacological therapy of 5-alpha reductase inhibitor and alpha adrenoreceptors blocker often causes several side effects that decrease the QoL, so it is necessary to develop a new treatment for BPH. Purinoreceptor is a novel receptor that can inhibit electrically evoked nerve-mediated contractions in the prostate. Tea leaves (Camellia sinensis) and Saw palmetto (Serenoa repens) are herbs that have potential as alternat

APA, Harvard, Vancouver, ISO, and other styles

28

Putri, Nazariah, Iwan Dewanto, and Rifki Febriansah. "Antioxidant and Chemoprevention Activity of Camelia Sinensis-Annona muricata Extract Combination against WiDr Cells Line." Mutiara Medika: Jurnal Kedokteran dan Kesehatan 21, no. 2 (2021): 130–37. http://dx.doi.org/10.18196/mmjkk.v21i2.11158.

Full text

Abstract:

Antioxidant compounds have an essential role in inhibiting the process of cell proliferation and have a chemopreventive effect. This study aims to trace the presence of antioxidant compounds allegedly contained in tea leaves (Camelia Sinensis L.) and soursop leaves (Anonna muricata L.) and investigate their potency as chemopreventive agents. Research steps include (1) identify the active compounds using thin-layer chromatography (TLC); (2) find out the potential compounds against cancer cells by molecular docking using Autodock Vina; (3) conduct a potential antioxidant test using free radicals

APA, Harvard, Vancouver, ISO, and other styles

29

Nawangsari, Desi. "EVALUASI SEDIAAN MASKER ANTIOKSIDAN DARI EKSTRAK DAUN TEH HIJAU (CAMELLIA SINENSIS)." Viva Medika: Jurnal Kesehatan, Kebidanan dan Keperawatan 10, no. 2 (2019): 119–28. http://dx.doi.org/10.35960/vm.v10i2.452.

Full text

Abstract:

Abstract Green tea (Camellia sinensis L.) has the main efficacy as an antioxidant and contains polyphenol compounds in green tea leaves with the main component of polyphenol fraction namely Epigallocatechin-3-gallate (EGCG) which has strong activity to prevent free radicals that cause premature aging. Research has been carried out on the formulation of maskantioxidant preparations containing green tea leaf extract. The study begins with testing the antioxidant activity of ethanol extract of green tea leaves with a free radical reduction method of 1,1-diphenyl-2-picrylhydrazyl using visib

APA, Harvard, Vancouver, ISO, and other styles

30

Goel, Shubhi, Chandra Shekar B R, and Chandan S. "Evaluation of Antioxidant and Antimicrobial Efficacy of Camellia Sinensis and Alstonia Scholaris Extracts on Streptococcus Mutans and Lactobacillus Acidophilus - An in Vitro Study." Biomedical and Pharmacology Journal 14, no. 1 (2021): 455–65. http://dx.doi.org/10.13005/bpj/2145.

Full text

Abstract:

Context Dental caries is showing an upward trend in India and there is a need to explore innovative strategies to prevent the disease. Literature evaluating antibacterial activity of Camellia sinensis and Alstonia scholaris plant extracts on Streptococcus mutans and Lactobacillus acidophilus is practically non-existent. Objectives - To assess the minimum inhibitory concentration (MIC) and antimicrobial efficacy of Camellia sinensis and Alstonia scholaris on S. mutans and L. acidophilus. Materials and method: This was an in vitro study carried over a period of three months. The leaves of Camell

APA, Harvard, Vancouver, ISO, and other styles

31

Deng, Wei-Wei, Min Li, Chen-Chen Gu, et al. "Low Caffeine Content in Novel Grafted Tea with Camellia sinensis as Scions and Camellia oleifera as Stocks." Natural Product Communications 10, no. 5 (2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000522.

Full text

Abstract:

Caffeine, a purine alkaloid, is a major secondary metabolite in tea leaves. The demand for low caffeine tea is increasing in recent years, especially for health reasons. We report a novel grafted tea material with low caffeine content. The grafted tea plant had Camellia sinensis as scions and C. oleifera as stocks. The content of purine alkaloids was determined in the leaves of one-year-old grafted tea plants by HPLC. We also characterized caffeine synthase (CS), a key enzyme involved in caffeine biosynthesis in tea plants, at the expression level. The expression patterns of CS were examined i

APA, Harvard, Vancouver, ISO, and other styles

32

Nawangsari, Desi. "UJI AKTIVITAS SEDIAAN MASKER ANTIOKSIDAN DARI EKSTRAK DAUN TEH HIJAU (CAMELLIA SINENSIS)." Viva Medika: Jurnal Kesehatan, Kebidanan dan Keperawatan 10, no. 2 (2019): 129–34. http://dx.doi.org/10.35960/vm.v10i2.453.

Full text

Abstract:

Abstract  Green tea (Camellia sinensis L.) has the main efficacy as an antioxidant and contains polyphenol compounds in green tea leaves with the main component of polyphenol fraction namely Epigallocatechin-3-gallate (EGCG) which has strong activity to prevent free radicals that cause premature aging. Research has been carried out on the formulation of maskantioxidant preparations containing green tea leaf extract. The study begins with testing the antioxidant activity of ethanol extract of green tea leaves with a free radical reduction method of 1,1-diphenyl-2-picrylhydrazyl usin

APA, Harvard, Vancouver, ISO, and other styles

33

Yang, Wei, Xianya Chen, Jiahao Chen, et al. "Virus-Induced Gene Silencing in the Tea Plant (Camellia sinensis)." Plants 12, no. 17 (2023): 3162. http://dx.doi.org/10.3390/plants12173162.

Full text

Abstract:

The recent availability of a number of tea plant genomes has sparked substantial interest in using reverse genetics to explore gene function in tea (Camellia sinensis). However, a hurdle to this is the absence of an efficient transformation system, and virus-induced gene silencing (VIGS), a transient transformation system, could be an optimal choice for validating gene function in the tea plant. In this study, phytoene desaturase (PDS), a carotenoid biosynthesis gene, was used as a reporter to evaluate the VIGS system. The injection sites of the leaves (leaf back, petiole, and stem) for infilt

APA, Harvard, Vancouver, ISO, and other styles

34

Agrahari, Mamta, Braj Nandan Kishor, and Priya Mishra. "Preliminary pharmacognostic standardization of leaves of Camellia sinensis leaf (Theaceae)." Journal of Pharmacognosy and Phytochemistry 10, no. 4 (2021): 387–89. http://dx.doi.org/10.22271/phyto.2021.v10.i4e.14185.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

KHAN, KR, H. DAWDA, and USHA MUKUNDAN. "Comparative microstructural analysis of Camellia sinensis leaves across different nodes." "Phytomorphology: Phytomorphology An International Journal of Plant Sciences" 74, no. 3&4 (2024): 61–76. https://doi.org/10.56024/ispm.74.3ampersand4.2024/61-76.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Shen, Jiazhi, Yu Wang, Changsong Chen, et al. "Metabolite profiling of tea (Camellia sinensis L.) leaves in winter." Scientia Horticulturae 192 (August 2015): 1–9. http://dx.doi.org/10.1016/j.scienta.2015.05.022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Uba, Joy O., Eugene N. Onyeike, Charity U. Ogunka-Nnoka, and Catherine C. Ikewuchi. "Bioactive and nutrient composition of Camellia sinensis (Tea plant) leaves." Journal of Medicinal Plants Studies 10, no. 6 (2022): 06–14. http://dx.doi.org/10.22271/plants.2022.v10.i6a.1481.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Jamous, Rana M., Salam Y. Abu-Zaitoun, Rola J. Akkawi, and Mohammed S. Ali-Shtayeh. "Antiobesity and Antioxidant Potentials of Selected Palestinian Medicinal Plants." Evidence-Based Complementary and Alternative Medicine 2018 (June 13, 2018): 1–21. http://dx.doi.org/10.1155/2018/8426752.

Full text

Abstract:

We evaluated the antioxidant and porcine pancreatic lipase inhibition (PPLI) activities of 90 plants extracts. The antioxidant activity was measured using the free-radical scavenging capacity (DPPH) and reducing power (RP) assays. The pancreatic lipase inhibition assay was used to determine the PPLI activity of plant extracts. Among the 90 plant extracts examined, 41.0 % crude extracts showed antilipase activity of more than 50%. The most active plants by means of IC50 value were Camellia sinensis (0.5 mg/ml), Ceratonia siliqua (leaves) (0.8 mg/mL), Curcuma longa (0.8 mg/mL), Sarcopoterium spi

APA, Harvard, Vancouver, ISO, and other styles

39

Raidah Amirah Balqis Rosidin, Suwendar, and Gita Cahya Eka Darma A. "Pengujian Aktivitas Antioksidan Ekstrak Etanol Daun Teh Putih (Camellia sinensis L.) dengan Metode DPPH." Bandung Conference Series: Pharmacy 4, no. 2 (2024): 112–19. http://dx.doi.org/10.29313/bcsp.v4i2.13058.

Full text

Abstract:

Abstract. White tea leaves (Camellia sinensis L.) contain catechin compounds, especially Epigallocathecin-Gallate compounds which are thought to have potential as antioxidants. This study aims to determine the antioxidant activity provided by ethanol extract of white tea leaves. White tea leaf extract was obtained by maceration method using 96% ethanol solvent. Antioxidant activity test was conducted using DPPH method by looking at IC50 value to determine its antioxidant strength. From the results of the study, the IC50 value of white tea leaf ethanol extract was 1.14 ± 0.26 ppm which indicate

APA, Harvard, Vancouver, ISO, and other styles

40

Kato, Misako, Naoko Kitao, Mariko Ishida, Hanayo Morimoto, Fumi Irino, and Kouichi Mizuno. "Expression for Caffeine Biosynthesis and Related Enzymes in Camellia sinensis." Zeitschrift für Naturforschung C 65, no. 3-4 (2010): 245–56. http://dx.doi.org/10.1515/znc-2010-3-413.

Full text

Abstract:

Caffeine (1,3,7-trimethylxanthine) is a purine alkaloid that is present in high concentrations in the tea plant Camellia sinensis. Caffeine synthase (CS, EC 2.1.1.160) catalyzes the S-adenosyl-L-methionine-dependent N-3- and N-1-methylation of the purine base to form caffeine, the last step in the purine alkaloid biosynthetic pathway. We studied the expression profile of the tea caffeine synthase (TCS) gene in developing leaves and flowers by means of northern blot analysis, and compared it with those of phenylalanine ammonia lyase (PAL, EC 4.3.1.5), chalcone synthase (CHS, EC 2.3.1.74), and S

APA, Harvard, Vancouver, ISO, and other styles

41

Chaerunisaa, Anis Yohana, Emma Surachman, and Zila Khuzaimah. "Peel Off Gel Mask containing Green Tea Leaf Extract (Camellia sinesis L) with Antioxidant Activity." Indonesian Journal of Pharmaceutics 3, no. 1 (2021): 1. http://dx.doi.org/10.24198/idjp.v3i1.30946.

Full text

Abstract:

Peel off mask has been very popular and preferred due to its ease in application. Gel base has been preferred for its cold and moist sensation during application. When herbal ingredients such as extract is introduced into gel formulation, the stability then will become an issue. The aim of the study was to formulate the peel-off mask gels containing green tea leaves extract (Camellia sinensis L.) which effective, stable, and safe to be used. The antioxidant study was conducted by using Diphenylhydrazylpicryl (DPPH) method. The peel-off mask gel formula were Hidroxypropyl Methylcelulosa (HPMC)

APA, Harvard, Vancouver, ISO, and other styles

42

Abdul-Wahab, Hind Yarub, and Hayder Raad Abdulbaqi. "Does Matcha tea enhance oral health? A narrative review." Sumer 1 8, CSS 1 (2023): 1–9. http://dx.doi.org/10.21931/rb/css/s2023.08.01.50.

Full text

Abstract:

Matcha tea is a fine-powdered green tea with a unique "Umami” taste. It is a popular beverage prepared from the leaves of the Camellia sinensis plant, which is growing under the shade a few weeks before harvesting the leaves. Consequently, Matcha tea is a green tea possessing distinctive proportions of bioactive chemicals. The health-promoting effects of Matcha tea are well-documented. Matcha tea constituents have diverse beneficial biological activities such as anticarcinogenic, anti-stress, anti-inflammatory and antioxidant effects, and enhancing cognitive function. On the other hand, resear

APA, Harvard, Vancouver, ISO, and other styles

43

Terakawa, A., H. Ushijima, K. Ishii, M. Sato, and K. Sera. "Elution of Cs and Sr from tea leaves (Camellia sinensis (L.) Kuntze) to green tea evaluated by PIXE analysis." International Journal of PIXE 28, no. 03n04 (2018): 101–6. http://dx.doi.org/10.1142/s0129083518500195.

Full text

Abstract:

We performed a particle-induced X-ray emission (PIXE) analysis of tea leaf samples (Camellia sinensis (L.) Kuntze) to evaluate the possibility of internal radiation exposure due to the intake of green tea contaminated with [Formula: see text]Cs and [Formula: see text]Sr. The tea leaf samples were obtained from tea trees (Camellia sinensis cv. ‘Yabukita’) cultivated with stable Cs and Sr added to the soil. We prepared the used leaf samples which were placed in distilled hot water (90[Formula: see text] for 1 min) as well as the unused leaf samples. The results of PIXE analysis combined with the

APA, Harvard, Vancouver, ISO, and other styles

44

Mandal, Ashok Kumar, Anisha Pandey, Prasamsha Pant, Seema Sapkota, Parasmani Yadav, and Devi Prasad Bhandari. "Formulation of Herbal Tea from Nepalese Medicinal Plants: Phenolic Assay, Proximate Composition and In-vivo Toxicity Profiling of Medicinal Plants with Nutritive Benefits." Journal of Plant Resources 20, no. 1 (2022): 139–49. http://dx.doi.org/10.3126/bdpr.v20i01.56603.

Full text

Abstract:

Herbal tea, also known as tisane, is a beverage made from the infusion or decoction of plant material in hot water. True tea comes from the Camellia sinensis plant, while tisane (herbal tea) comes from a water-based infusion of herbs, spices, flowers, leaves etc. This study aimed to formulate and determine the nutraceutical value (proximate analysis), phytochemical value (total phenolic content) and in-vivo toxicity of the different medicinal plants used to prepare three different types of herbal tea formulations. Natural Product Research Laboratory (NPRL)-1 [Asparagus officinalis L., Phyllant

APA, Harvard, Vancouver, ISO, and other styles

45

Maslov, Olexander, Sergii Kolisnyk, Mykola Komisarenko, Olena Kolisnyk, and Svitlana Ponomarenko. "Antioxidant activity of green tea leaves (Camellia sinensis L.) liquid extracts." Pharmacologyonline 3 (January 1, 2021): 291–98. https://doi.org/10.5281/zenodo.7813115.

Full text

Abstract:

Nowadays, it has been proved that cardiovascular diseases are caused by free radicals due to imbalance between antioxidant and prooxidant systems. Antioxidants are applied for scavenging free radicals in order to prevent and stop oxidative stress. Leaf of green tea is a source of potent antioxidants of phenolic nature which can be used for elaborating dietary supplements, cosmetology products and medicine with antioxidant activity. The aim of study was to determine antioxidant activity of green tea leaves (Camellia sinensis L.) liquid extracts obtained by the 96, 60, 40, 20% ethanol and distil

APA, Harvard, Vancouver, ISO, and other styles

46

Kalaimagal, C., V. Vinotha, and R. Rajakumar. "Evaluation of Antioxidant and Anti-Inflammatory Activities of Camellia sinensis (L.) Kuntze." Research Journal of Biotechnology 19, no. 5 (2024): 31–36. http://dx.doi.org/10.25303/1905rjbt031036.

Full text

Abstract:

Medicinal plants are widely used in management of diseases all over the world. The antioxidant and anti- inflammatory activities of C. sinensis were studied in albino rats by using methanolic extracts of these plants. The phytochemical studies in Camellia sinensis showed the presence of alkaloids, flavonoids, carbohydrates, protein, phenols, saponins, tannins, phytosterols, phlobatannins and terpenoids. In the present GC-MS analysis, total 20 compounds were identified from the methanol extract of C.sinensi. Among the 20 compounds, the highest peak percentage was noted in the 1H- Purine-2,6-dio

APA, Harvard, Vancouver, ISO, and other styles

47

Yoshida, Taisuke, Tsuguhisa Fujiwara, Manabu Saito, Yoichi Haruyama, and Keisuke Yasuda. "Concentration and distribution measurements of fluorine in tea leaves by micro-PIGE." International Journal of PIXE 23, no. 03n04 (2013): 119–25. http://dx.doi.org/10.1142/s0129083513410040.

Full text

Abstract:

The concentration and distribution of fluorine in mature leaves of Camellia sinensis were determined using micro-PIGE. The elemental concentration was measured as 2210 ± 450 ppm. Fluorine showed clear localization in the epidermis. Fluorine was distributed uniformly in the upper epidermis, suggesting that fluorine was localized in the cytoplasm. On the other hand, extremely concentrated areas of fluorine were observed in the lower epidermis.

APA, Harvard, Vancouver, ISO, and other styles

48

Ubbor, S. C., J. I. Ekeh, J. Ndife, and B. N. Iguh. "Production and Quality Evaluation of Herbal Tea from Moringa Leaves and Lemon Peel Powder." Journal of Agriculture and Food Sciences 20, no. 1 (2022): 78–90. http://dx.doi.org/10.4314/jafs.v20i1.7.

Full text

Abstract:

Tea is one of the most widely consumed beverages in the world next to water. It is made from tea leaves of Camellia sinensis. Herbal teas on the other hand, are tea variants not made from Camellia sinensis but from other plants, herbs, roots and plant extract. This study therefore, investigated the quality and acceptability of herbal teas made from dried Moringa leaves and lemon peel powder. Herbal teas were made from 100% dried Moringa leaves, 100% dried lemon peel powder and blends of Moringa leaves and lemon peel powder in the ratios of 50:50, 30:70 and 60:40. A total of five formulations w

APA, Harvard, Vancouver, ISO, and other styles

49

Parveen, Asma, Chun-Yin Qin, Feng Zhou, et al. "The Chemistry, Sensory Properties and Health Benefits of Aroma Compounds of Black Tea Produced by Camellia sinensis and Camellia assamica." Horticulturae 9, no. 12 (2023): 1253. http://dx.doi.org/10.3390/horticulturae9121253.

Full text

Abstract:

Black tea is frequently consumed worldwide and is renowned for having a distinctive scent. The volatile chemicals in tea are responsible for its aroma, which is important for sensory quality. The enzymatic and non-enzymatic processes that produce the compounds endowing black tea with its distinctive aroma are complex. Black tea is well known for its robust and complex aroma, which can vary based on the type of tea leaves used and processing technologies used. During the production of black tea, several intricate biological and chemical processes contribute to the aroma’s development. Different

APA, Harvard, Vancouver, ISO, and other styles

50

PU, SHUN-CHANG, MEI-JUN GUO, and CHENG-LIN HOU. "A new species of Coccomyces from oak leaves in Fodingshan National Nature Reserve in China." Phytotaxa 558, no. 1 (2022): 116–24. http://dx.doi.org/10.11646/phytotaxa.558.1.8.

Full text

Abstract:

Specimens of Coccomyces on Quercus (Cyclobalanopsis, Fagaceae) collected from Fodingshan National Nature Reserve in Guizhou Province, China, were identified as a new species and named Coccomyces fodingshanensis. A multi-gene phylogenetic analysis (ITS, LSU, mtSSU) showed that the new species is closely related to Coccomyces sinensis on Camellia species but differed by subrounded ascomata and fagaceous host.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!