Chemical compositions of chrysanthemum teas and their anti-inflammatory and antioxidant properties

Li, Yanfang; Yang, Peng; Luo, Yinghua; Gao, Boyan; Sun, Jianghao; Lu, Weiying; Liu, Jie; Chen, Pei; Zhang, Yaqiong; Yu, Liangli

doi:10.1016/j.foodchem.2019.02.013

Cited by 120 publications

(88 citation statements)

References 33 publications

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“…The activities of glutathione reductase (GR, EC 1.6.4.2) were determined following the method of Li et al [27]. Briefly, 0.2 g leaf tissue was ground in liquid nitrogen and extracted with 5 mL of a solution containing 50 mM potassium buffer (pH 7.0), 1mM EDTA and 1% PVP.…”

Section: Determination Of Antioxidant Enzyme Activitiesmentioning

confidence: 99%

Combining Physiological and Metabolomic Analysis to Unravel the Regulations of Coronatine Alleviating Water Stress in Tobacco (Nicotiana tabacum L.)

Zhou

et al. 2020

Biomolecules

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Drought is a major abiotic stress that restricts plants growth, development, and yield. Coronatine (COR), a mimic of JA-Ile, functions in plant tolerance to multiple stresses. In our study, we examined the effects of COR in tobacco under polyethylene glycol (PEG) stress. COR treatment improved plant growth under stress as measured by fresh weight (FW) and dry weight (DW). The enzyme activity assay indicated that, under osmotic stress conditions, the activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) were enhanced by COR treatment. Histochemical analyses via nitrotetrazolium blue chloride (NBT) and 3,3′-diaminobenzidine (DAB) staining showed that COR reduced reactive oxygen species (ROS) accumulation during osmotic stress. Metabolite profiles revealed that COR triggered significant metabolic changes in tobacco leaves under osmotic stress, and many essential metabolites, such as sugar and sugar derivatives, organic acids, and nitrogen-containing compounds, which might play active roles in osmotic-stressed tobacco plants, were markedly accumulated in the COR-treated tobacco. The work presented here provides a comprehensive understanding of the COR-mediated physiological, biochemical, and metabolic adjustments that minimize the adverse impact of osmotic stress on tobacco.

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Section: Determination Of Antioxidant Enzyme Activitiesmentioning

confidence: 99%

Combining Physiological and Metabolomic Analysis to Unravel the Regulations of Coronatine Alleviating Water Stress in Tobacco (Nicotiana tabacum L.)

Zhou

et al. 2020

Biomolecules

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“…Chrysanthemum teas are dried capitate inflorescence of the chrysanthemums, and usually consumed in combination with hot or boiling water. They are considered to have many beneficial effects, most typically are anti‐inflammation (Li, Yang, et al, ; Zhang, Shi, Zhao, Chai, & Tu, ) and antioxidant (Li, Yang, et al, ; Wang, Xi, Guo, Wang, & Shen, ; Yang et al, ) and have been applied in treating a series of symptoms such as blurred vision, dermatitis, and eye itch for more than 2,000 years. In our previous studies, it is indicated that different chrysanthemums have different phytochemical compositions together with different health functions (Li, Hao, et al, ; Li, Yang, et al, ).…”

Section: Introductionmentioning

confidence: 99%

Rapid identification of chrysanthemum teas by computer vision and deep learning

Gao

et al. 2020

Food Science & Nutrition

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Seven commercial Chinese chrysanthemum tea products were classified by computer vision combined with machine learning algorithms. Without the need of building any specific hardware, the image acquisition was achieved in two computer vision approaches. In the first approach, a series of multivariate classification models were built after morphological feature extraction of the image. The best prediction accuracies when classifying flowering stages and tea types were respectively 90% and 63%. In comparison, the deep neural network was applied directly on the raw image, yielded 96% and 89% correct identifications when classifying flowering stage and tea type, respectively. The model can be applied for rapid and automatic quality determination of teas and other related foods. The result indicated that computer vision, especially when combined with deep learning or other machine learning techniques can be a convenient and versatile method in the evaluation of food quality. K E Y W O R D S chrysanthemum tea, computer vision classification, deep neural network, morphological feature

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“…The ower of chrysanthemum has been used as a popular tea material and an important traditional Chinese medicine for many years in China. 15,16 Chrysanthemum tea is one of the most commonly daily consumed teas for Chinese consumers. Several different species and cultivars of chrysanthemum owers, such as Coreopsis tinctoria (snow chrysanthemum), Chrysanthemum indicum, C. morifolium 'Gongju', C. morifolium 'Hangbaiju', C. morifolium 'Huangju', C. morifolium 'Hangju', C. morifolium 'Huaiju', and C. morifolium 'Boju', are consumed as the most popular tea materials in China.…”

Section: Introductionmentioning

confidence: 99%

“…Several different species and cultivars of chrysanthemum owers, such as Coreopsis tinctoria (snow chrysanthemum), Chrysanthemum indicum, C. morifolium 'Gongju', C. morifolium 'Hangbaiju', C. morifolium 'Huangju', C. morifolium 'Hangju', C. morifolium 'Huaiju', and C. morifolium 'Boju', are consumed as the most popular tea materials in China. 15,17 Pharmacological studies have shown that the extracts of chrysanthemum teas possess various bioactivities, such as antioxidant, anti-inammation, antihypertensive, neuroprotective, and antidiabetic effects. 10,15,[17][18][19][20][21] Generally, polysaccharides, avonoids, phenolic acids, and volatile oil are considered the main bioactive ingredients in chrysanthemum teas, 10,15,17,20,22,23 which are responsible for their excellent antioxidant activity.…”

Section: Introductionmentioning

confidence: 99%

Structural characterization, antioxidant activity, and antiglycation activity of polysaccharides from different chrysanthemum teas

Yuan

Xiang

et al. 2019

RSC Adv.

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Chemical compositions of chrysanthemum teas and their anti-inflammatory and antioxidant properties

Cited by 120 publications

References 33 publications

Combining Physiological and Metabolomic Analysis to Unravel the Regulations of Coronatine Alleviating Water Stress in Tobacco (Nicotiana tabacum L.)

Combining Physiological and Metabolomic Analysis to Unravel the Regulations of Coronatine Alleviating Water Stress in Tobacco (Nicotiana tabacum L.)

Rapid identification of chrysanthemum teas by computer vision and deep learning

Structural characterization, antioxidant activity, and antiglycation activity of polysaccharides from different chrysanthemum teas

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