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chlorogenic acid

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https://www.readbyqxmd.com/read/29779268/variation-in-polyphenolic-profiles-antioxidant-and-antimicrobial-activity-of-different-achillea-species-as-natural-sources-of-antiglycative-compounds
#1
Mahvash Afshari, Mehdi Rahimmalek, Mehran Miroliaei
A comparative study was carried out on the methanolic extracts from six Achillea species and the examined polyphenols from these plants on the formation of advanced glycation end-products (AGE) in vitro. A. pachycephala which was richer in flavonoids (15 mg quercetin/g W) and phenolics (111.10 mg tannic acid/g DW) with substantial antioxidant activity (IC50 = 365.5 μg/ml) presented strong anti-AGE properties. Chlorogenic acid, luteolin, quercetin and caffeic acid were identified as the major polyphenols in the extracts by HPLC...
May 19, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29772791/compounds-identification-in-semen-cuscutae-by-ultra-high-performance-liquid-chromatography-uplcs-coupled-to-electrospray-ionization-mass-spectrometry
#2
Ying Zhang, Hui Xiong, Xinfang Xu, Xue Xue, Mengnan Liu, Shuya Xu, Huan Liu, Yan Gao, Hui Zhang, Xiangri Li
Semen Cuscutae is commonly used in traditional Chinese medicine and contains a series of compounds such as flavonoids, chlorogenic acids and lignans. In this study, we identified different kinds of compositions by ultra-high-performance liquid chromatography (UPLC) coupled to electrospray ionization mass spectrometry (MS). A total of 45 compounds were observed, including 20 chlorogenic acids, 23 flavonoids and 2 lignans. 23 of them are reported for the first time including 6- O -caffeoyl- β -glucose, 3- O -(4'- O -Caffeoylglucosyl) quinic acid, etc...
May 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29765781/bactericidal-and-cytotoxic-activities-of-polyphenol-extracts-from-solanum-tuberosum-spp-tuberosum-and-spp-andigena-cultivars-on-escherichia-coli-and-human-neuroblastoma-sh-sy5y-cells-in-vitro
#3
María Ximena Silveyra, María Luciana Lanteri, Rocío Belén Damiano, Adriana Balbina Andreu
Potatoes ( Solanum tuberosum L.) are a good source of dietary antioxidant polyphenols. This study investigated the potential antioxidant, bactericidal, and cytotoxic activities in vitro of the phenolic compounds present in tubers of one S. tuberosum spp. tuberosum (Summerside), and three S. tuberosum spp. andigena (landraces Moradita, Waicha, and Santa María) cultivars. Both the content of phenolic acids, chlorogenic acids (CGAs) being the most abundant, and the antioxidant activity were higher in extracts from skin than from flesh...
2018: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/29762631/aqueous-extracts-of-walnut-juglans-regia-l-leaves-quantitative-analyses-of-hydroxycinnamic-and-chlorogenic-acids
#4
Anggy Lusanna Gutiérrez Ortiz, Federico Berti, Luciano Navarini, Paola Crisafulli, Silvia Colomban, Cristina Forzato
Identification of both hydroxycinnamic and chlorogenic acids present in aqueous extracts of walnut leaves (Juglans regia L.) were carried out by using, for the first time, standard compounds not commercially available for qualitative identification. In particular, in addition to caffeic, ferulic, p-coumaric and sinapic acids, cis and trans mono-caffeoylquinic, dicaffeoylquinic, mono-feruloylquinic and cis and trans mono-p-coumaroylquinic acid isomers were detected and quantified by Ultra High Pressure Liquid Chromatography and the seasonal variations of these secondary metabolites were investigated...
May 14, 2018: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/29753281/a-network-pharmacology-integrated-metabolomics-strategy-for-clarifying-the-difference-between-effective-compounds-of-raw-and-processed-farfarae-flos-by-ultra-high-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry
#5
Mingya Ding, Zhen Li, Xie-An Yu, Dong Zhang, Jin Li, Hui Wang, Jun He, Xiu-Mei Gao, Yan-Xu Chang
This study aimed to clarify the difference between the effective compounds of raw and processed Farfarae flos using a network pharmacology-integrated metabolomics strategy. First, metabolomics data were obtained by ultra high-performance liquid chromatography-quadrupole-time of flight mass spectrometry (UHPLC-Q-TOF/MS). Then, metabolomics analysis was developed to screen for the influential compounds that were different between raw and processed Farfarae flos. Finally, a network pharmacology approach was applied to verify the activity of the screened compounds...
May 4, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29751916/phytochemical-and-physical-properties-of-blueberries-tart-cherries-strawberries-and-cranberries-as-affected-by-different-drying-methods
#6
Boris Nemzer, Luis Vargas, Xiaoyan Xia, Marsha Sintara, Hao Feng
The effects of hot-air drying (AD), freeze drying (FD) and Refractance Window drying (RWD) on the retention of anthocyanins, phenolics, flavonoids, vitamin C and B, and antioxidant capacity (ORAC) in blueberries, tart cherries, strawberries, and cranberries, as well as organic acids and proanthocyanins in cranberries and chlorogenic acid and catchins in blueberries were evaluated. Changes in color, glass transition, specific heat, and surface morphology of the dried fruits were also evaluated. The quality retention in the dried fruits was found to be product and drying method specific...
October 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29746001/evaluation-of-antioxidant-properties-phenolic-compounds-anthelmintic-and-cytotoxic-activities-of-various-extracts-isolated-from-nepeta-cadmea-an-endemic-plant-for-turkey
#7
Arzu Kaska, Nahide Deniz, Mehmet Çiçek, Ramazan Mammadov
Nepeta cadmea Boiss. is a species endemic to Turkey that belongs to the Nepeta genus. Several species of this genus are used in folk medicine. This study was designed to investigate the phenolic compounds, antioxidant, anthelmintic, and cytotoxic activities of various extracts (ethanol, methanol, acetone, and water) of N. cadmea. The antioxidant activities of these extracts were analyzed using scavenging methods (DPPH, ABTS, and H2 O2 scavenging activity), the β-carotene/linoleic acid test system, the phosphomolybdenum method, and metal chelating activity...
May 10, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29739608/phenolic-compounds-as-beneficial-phytochemicals-in-pomegranate-punica-granatum-l-peel-a-review
#8
Balwinder Singh, Jatinder Pal Singh, Amritpal Kaur, Narpinder Singh
Pomegranate peel (PoP), a juice byproduct often considered as a waste, comprises nearly around 30-40% portion of the fruit. Phenolic compounds (one class of bioactive phytochemicals) are primarily concentrated in the peel portion of pomegranate fruit. In PoP, the main phenolic compounds reported in the literature include flavonoids (anthocyanins such as pelargonidin, delphinidin, cyanidin along with their derivatives and anthoxanthins such as catechin, epicatechin and quercetin), tannins (ellagitannins and ellagic acid derivatives such as punicalagin, punicalin and pedunculagin) and phenolic acids (such as chlorogenic, caffeic, syringic, sinapic, p-coumaric, ferulic, ellagic, gallic and cinnamic acid)...
September 30, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29739583/the-impact-of-high-pressure-processing-on-the-phenolic-profile-hydrophilic-antioxidant-and-reducing-capacity-of-pur%C3%A3-e-obtained-from-commercial-tomato-varieties
#9
Maja Jeż, Wiesław Wiczkowski, Danuta Zielińska, Ireneusz Białobrzewski, Wioletta Błaszczak
The effect of high hydrostatic pressure (HHP) (450-550-650 MPa/5-10-15 min) on polyphenols profile of purée obtained from commercial tomato varieties (Maliniak, Cerise, Black Prince and Lima) was investigated. Individual polyphenols, total phenolic index (TPI) were quantified using a mass spectrometer (HPLC-MS/MS). Photochemiluminescence (PCLACW), cyclic voltammetry (CV) and ferric reducing antioxidant power (FRAP) assays were used to determine the antioxidant capacity of the hydrophilic extract. The results demonstrated that at certain processing conditions, HHP may enhance or decrease the nutritional quality of tomato purée...
September 30, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29736979/dynamic-changes-in-polyphenol-compounds-antioxidant-activity-and-pal-gene-expression-in-different-tissues-of-buckwheat-during-germination
#10
AJing Ling, Xiaoping Li, Xinzhong Hu, Zhen Ma, Kunming Wu, Huiwen Zhang, Meng Hao, Sifan Wei
BACKGROUND: There is a growing interest in buckwheat germination regarding the improvement of its health benefits. The aims of this study were to evaluate the effects of germination on polyphenol compounds, antioxidant activity, and phenylalanine ammonia-lyase (PAL) gene expression in different tissues (cotyledon, hypocotyl, and radicle) of buckwheat sprouts during germination for 12 days, as well as to investigate their interactions. RESULTS: Total polyphenol and total flavonoid content, antioxidant activity, main polyphenol components, and PAL gene expression significantly increased during germination...
May 8, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29735073/phenolic-compounds-are-highly-correlated-to-the-antioxidant-capacity-of-genotypes-of-oenocarpus-distichus-mart-fruits
#11
Sérgio Henrique Brabo de Sousa, Rafaella de Andrade Mattietto, Renan Campos Chisté, Ana Vânia Carvalho
This research aimed to evaluate 32 genotypes of Oenocarpus distichus fruits regarding the contents of total phenolic compounds, flavonoids, flavanols, monomeric anthocyanins, antioxidant capacity (ABTS and DPPH assays), and the phenolic compound profiles of the five genotypes that presented the highest yields of bioactive compounds. The genotypes were harvested in three different locations in Pará State, Northern Brazil, (Belém, São João do Araguaia and Marabá). Among the 32 genotypes, the highest bioactive compound contents and antioxidant capacity were found for three genotypes harvested in Belém (B-3, B-7 and B-8) and two harvested in São João do Araguaia (SJ-1 and SJ-4), and the total phenolic compounds varied from 131...
June 2018: Food Research International
https://www.readbyqxmd.com/read/29734693/iron-release-from-soybean-seed-ferritin-induced-by-cinnamic-acid-derivatives
#12
Xuejiao Sha, Hai Chen, Jingsheng Zhang, Guanghua Zhao
Plant ferritin represents a novel class of iron supplement, which widely co-exists with phenolic acids in a plant diet. However, there are few reports on the effect of these phenolic acids on function of ferritin. In this study, we demonstrated that cinnamic acid derivatives, as widely occurring phenolic acids, can induce iron release from holo soybean seed ferritin (SSF) in a structure-dependent manner. The ability of the iron release from SSF by five cinnamic acids follows the sequence of Cinnamic acid > Chlorogenic acid > Ferulic acid > p -Coumaric acid > Trans -Cinnamic acid...
May 4, 2018: Pharmaceuticals
https://www.readbyqxmd.com/read/29726222/-coupling-mode-of-irrigation-and-shading-for-good-quality-and-proper-yield-of-coffea-arabica-in-dry-hot-region
#13
Xiao Gang Liu, Yi Lin Li, Yun Tao Qi, Jin Huan Cheng, Qi Liang Yang, Yan Wei Liu
In a field experiment with three levels of irrigation, i.e., CI, DI75 and DI50 (100%, 75% and 50% full irrigation) and four levels of shade, i.e., T100 , T70 , T55 and T40 (100%, 70%, 55% and 40% natural radiation), the effects of irrigation and shading levels on growth, yield and quality of Coffea arabica were examined. The comprehensive benefit evaluation model was established under different irrigation and shading levels. The results showed that DI75 treatment increased the contents of fat and chlorogenic acid in dry bean by 6...
April 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29723112/effect-of-green-coffee-consumption-on-resting-energy-expenditure-blood-pressure-and-body-temperature-in-healthy-women-a-pilot-study
#14
Nilüfer Acar-Tek, Duygu Agagüundüz, Büşra Ayhan
OBJECTIVE: This study was conducted to determine the effects of green coffee consumption on resting energy expenditures (REEs), blood pressure, and body temperature of individuals. METHOD: The study was conducted with 24 women. The REE values of the individuals were measured with the COSMED Fitmate PRO. After the first REE measurements, individuals were given 1 cup of green coffee that was prepared to contain 6 mg caffeine per kg of lean body mass. After coffee consumption, REE measurements were made at 30, 60, 120, and 180 minutes...
May 3, 2018: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29717667/hepatoprotective-effect-of-auricularia-delicata-agaricomycetes-from-india-in-rats-biochemical-and-histopathological-studies-and-antimicrobial-activity
#15
Sujata Devi Wangkheirakpam, Devi Datt Joshi, Geeta Devi Leishangthem, Dipak Biswas, Lokesh Deb
Auricularia delicata, an edible mushroom, has been used as a traditional medicine in Manipur, India, for various gastrointestinal and liver ailments. This study evaluates the antioxidant, antimicrobial, and hepatoprotective potential of A. delicata. A. delicata fruiting bodies were extracted with hexane, chloroform, ethyl acetate, and methanol. All these extracts were examined for in vitro antioxidant activity. To study antimicrobial activity, minimum inhibitory concentrations (milligrams per milliliter) were determined through the use of the broth dilution method...
2018: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/29707036/effect-of-chlorogenic-acid-intake-on-cognitive-function-in-the-elderly-a-pilot-study
#16
Morimasa Kato, Ryuji Ochiai, Kazuya Kozuma, Hirotaka Sato, Yoshihisa Katsuragi
Objective: To evaluate the effect of chlorogenic acids (CGAs) intake on cognitive function. Methods: In this pilot study, the Cogstate and CNS Vital Signs test batteries were used to evaluate cognitive function in 8 healthy elderly men and women complaining of subjective memory loss after a 6-month intake of a test beverage containing 330 mg of CGAs just before bedtime. Results: After a 6-month CGA intake period, significant improvement was observed in the One Back Test of the Cogstate, the Shifting Attention Test, and Finger Tapping Test as well as in the composite memory, verbal memory, complex attention, cognitive flexibility, executive function, and motor speed domains of the CNS Vital Signs test battery...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29704991/roasting-has-a-distinct-effect-on-the-antimutagenic-activity-of-coffee-varieties
#17
Alexandros Priftis, Dimitra Mitsiou, Maria Halabalaki, Georgia Ntasi, Dimitrios Stagos, Leandros A Skaltsounis, Demetrios Kouretas
Coffee is a highly consumed beverage throughout the world. Its popularity derives from its organoleptic properties that are a result of the roasting process. Roasting greatly alters a coffee bean's composition and possibly its bioactivity. In the current study, green as well as roasted extracts from both Coffea arabica (Brazil and Decaf) and Coffea canephora (Robusta) species were tested for their antimutagenic activity using the Ames test. In addition, a compositional analysis was conducted to identify the main components, mainly Chlorogenic acid isomers (CGA) and derivatives present in the extracts using UHPLC-ESI(±) and HRMS/MS methods According to the results, all extracts exhibited strong antimutagenic activity against the oxidizing factor tert-Butyl hydroperoxide, a Reactive Oxygen Species-producing compound...
May 2018: Mutation Research
https://www.readbyqxmd.com/read/29702354/the-enrichment-of-chlorogenic-acid-from-eucommia-ulmoides-leaves-extract-by-mesoporous-carbons
#18
Guotong Qin, Jing Ma, Wei Wei, Jaja Li, Fangqing Yue
Herein, we report an efficient separation and enrichment method for chlorogenic acid from crude extracts of Eucommia ulmoides leaves using carbon adsorbents. The effects of the pore structure of the carbon adsorbents on the adsorption capacity were studied. Of the four adsorbents investigated, mesoporous carbon (MC3) showed the highest adsorption capacity (294 mg/g of carbon) for chlorogenic acid due to its high mesopore volume. The static adsorption of CGA on carbon can be accurately described using the Freundlich equation...
April 22, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29702120/chinese-herbal-extract-su-duxing-had-potent-inhibitory-effects-on-both-wild-type-and-entecavir-resistant-hepatitis-b-virus-hbv-in-vitro-and-effectively-suppressed-hbv-replication-in-mouse-model
#19
Yan Liu, Weiming Yao, Lanlan Si, Jun Hou, Jiabo Wang, Zhihui Xu, Weijie Li, Jianhong Chen, Ruisheng Li, Penggao Li, Lvping Bo, Xiaohe Xiao, Jinchu Lan, Dongping Xu
The present study aimed to investigate anti-HBV effect and major active compounds of Su-duxing, a medicine extracted from Chinese herbs. HBV-replicating cell lines HepG2.2.15 (wild-type) and HepG2. A64 (entecavir-resistant) were used for in vitro test. C57BL/6 mice infected by adeno-associated virus carrying 1.3 mer wild-type HBV genome were used for in vivo test. Inhibitory rates of Su-duxing (10 μg/mL) on HBV replicative intermediate and HBsAg levels were 75.1%, 51.0% in HepG2.2.15 cells and 65.2%, 42...
April 24, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29700672/simulated-gastrointestinal-digestion-bioaccessibility-and-antioxidant-capacity-of-polyphenols-from-red-chiltepin-capsicum-annuum-l-var-glabriusculum-grown-in-northwest-mexico
#20
Maribel Ovando-Martínez, Nohemí Gámez-Meza, Claudia Celeste Molina-Domínguez, Corina Hayano-Kanashiro, Luis Angel Medina-Juárez
Chiltepin, a wild chili mostly used in different traditional foods and traditional medicine in Northwest Mexico, represents a source of polyphenols. However, studies about the bioaccessibility of polyphenols as a parameter to measure the nutritional quality and bioefficacy of them in the fruit after consumption are scarce. Chiltepin showed phenolic acids and flavonoids contents between 387 and 65 μg/g, respectively. Nevertheless, these values decreased after the digestion process. Before digestion, gallic acid, 4-hydroxibenzoinc acid, chlorogenic acid, caffeic acid, p-coumaric acid, quercetin and luteolin were the main polyphenols found in chiltepin by HPLC-DAD and confirmed by FIA-ESI-IT-MS/MS...
April 26, 2018: Plant Foods for Human Nutrition
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