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https://www.readbyqxmd.com/read/28643851/fluorescent-competitive-aptasensor-for-detection-of-aflatoxin-b1
#1
Monali Mukherjee, Praveena Bhatt, Manonmani H K
Aflatoxin B1 (AFB1 ) is one of the most commonly found mycotoxins in food commodities, particularly cereals, oilseeds, spices and tree nuts. In the past decade, aptamers have come into limelight and emerged as a new biosensing element replacing antibodies in various detection formats. Herein we report a faster, more sensitive, high throughput method for the detection of AFB1 using AFB1 -specific aptamers. The assay format was based on a competitive reaction of the fluorescent tagged aptamer specific to AFB1 with the aflatoxin conjugate...
June 23, 2017: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/28640929/modulation-of-tumor-microenvironment-by-chemopreventive-natural-products
#2
REVIEW
Sin-Aye Park, Young-Joon Surh
The tumor microenvironment provides a niche in which cancer cells and their surrounding stromal cells reside and in which their interactions occur. The cross talk between cancer and stromal cells in the tumor microenvironment promotes many biological processes to support cancer cell growth, invasion, angiogenesis, and metastasis. Recently, not only cancer cells but also multiple types of surrounding stromal cells, including endothelial cells, immune cells, and fibroblasts in the tumor microenvironment, have been recognized to be attractive targets for reducing resistance to anticancer therapy and tumor recurrence...
June 22, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28629313/editorial-spicing-up-the-management-of-type-2-diabetes-with-cinnamon
#3
EDITORIAL
Arduino A Mangoni, Elzbieta A Jarmuzewska
No abstract text is available yet for this article.
2017: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/28629221/extracted-apocarotenoids-from-saffron-stigmas-and-evaluated-the-quality-of-saffron
#4
Feng Xiaobin, Qian Xiaodong, Han Shuwen, Yao Chong, Yuan Yumei, Zhou Guifen
Saffron is a kind of expensive spice and therapeutic agent. In order to establish a set of methods to evaluate the quality of saffron, High Performance Liquid Chromatography/Mass Spectrometry (HPLC/MS) were used to identify the apocarotenoids extracted from saffron stigmas. TOPSIS method was applied to evaluate the qualities of saffron. The conditions of HPLC/MS and chemical fingerprints of saffron had been established. The 14 chromatographic peaks and 13 main apocarotenoids of saffron with high reproducibility, stability and specificity were confirmed...
June 19, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28627716/a-cherry-seed-derived-spice-mahleb-is-recognized-by-anti-almond-antibodies-including-almond-allergic-patient-ige
#5
Kyle A Noble, Changqi Liu, Shridhar K Sathe, Kenneth H Roux
There are a number of examples of immunologic cross-reactivity elicited by pollens, fruits, seeds, and nuts of closely related plant species. Such cross-reactivity is of particular concern for patients with food allergies. In this report, we investigated a spice (mahleb) that is prepared from the kernel of the St. Lucie cherry, Prunus mahaleb, for cross-reactivity with almond (Prunus dulcis), using enzyme-linked immunosorbent assay (ELISA) and Western blot. Almond and mahleb are members of the same genus. Cross-reactivity between the mahleb and almond was demonstrated by reaction of cherry and almond kernel protein extracts with antibodies raised against almond proteins...
June 19, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28624736/fluorescence-of-tautomeric-forms-of-curcumin-in-different-ph-and-biosurfactant-rhamnolipids-systems-application-towards-on-off-ratiometric-fluorescence-temperature-sensing
#6
Zeinab Moussa, Mazhar Chebl, Digambara Patra
Medicinal properties of curcumin are widely getting realized. For its applicability as a hydrophobic drug molecule and food spice interaction of curcumin with rhamnolipids, a biosurfactant, bears importance. Here we have explored interaction of curcumin with rhamnolipids biosurfactant and its aggregation behavior. The impact of pH on critical micelle concentration (cmc) of rhamnolipids has been studied using fluorescence of curcumin and found that cmc of rhamnolipids increases with increase in pH of the medium...
June 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28624443/inhibitory-effect-of-trans-caryophyllene-tc-on-leukocyte-endothelial-attachment
#7
Zhen Zhang, Chunfeng Yang, Xinlun Dai, Yu Ao, Yumei Li
trans-Caryophyllene (TC) is a major component found in the essential oils of many spices and foods/medicinal plants. It is a natural sesquiterpene and has been the subject of numerous studies. However, the effects of TC on vascular inflammation remain unknown. In this study, we reported that TC treatment in human umbilical vein endothelial cells (HUVECs) prevented attachment of monocytic leukemia cell line THP-1 cells to endothelial cells. In addition, in vivo results indicate that TC inhibited macrophage infiltration to the aortic surface and reduced total serum levels of cholesterol and triglycerides...
June 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28621716/antibacterial-and-antifungal-activities-of-spices
#8
REVIEW
Qing Liu, Xiao Meng, Ya Li, Cai-Ning Zhao, Guo-Yi Tang, Hua-Bin Li
Infectious diseases caused by pathogens and food poisoning caused by spoilage microorganisms are threatening human health all over the world. The efficacies of some antimicrobial agents, which are currently used to extend shelf-life and increase the safety of food products in food industry and to inhibit disease-causing microorganisms in medicine, have been weakened by microbial resistance. Therefore, new antimicrobial agents that could overcome this resistance need to be discovered. Many spices-such as clove, oregano, thyme, cinnamon, and cumin-possessed significant antibacterial and antifungal activities against food spoilage bacteria like Bacillus subtilis and Pseudomonas fluorescens, pathogens like Staphylococcus aureus and Vibrio parahaemolyticus, harmful fungi like Aspergillus flavus, even antibiotic resistant microorganisms such as methicillin resistant Staphylococcus aureus...
June 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28620478/a-hot-water-extract-of-turmeric-curcuma-longa-suppresses-acute-ethanol-induced-liver-injury-in-mice-by-inhibiting-hepatic-oxidative-stress-and-inflammatory-cytokine-production
#9
Ryusei Uchio, Yohei Higashi, Yusuke Kohama, Kengo Kawasaki, Takashi Hirao, Koutarou Muroyama, Shinji Murosaki
Turmeric (Curcuma longa) is a widely used spice that has various biological effects, and aqueous extracts of turmeric exhibit potent antioxidant activity and anti-inflammatory activity. Bisacurone, a component of turmeric extract, is known to have similar effects. Oxidative stress and inflammatory cytokines play an important role in ethanol-induced liver injury. This study was performed to evaluate the influence of a hot water extract of C. longa (WEC) or bisacurone on acute ethanol-induced liver injury. C57BL/6 mice were orally administered WEC (20 mg/kg body weight; BW) or bisacurone (60 µg/kg BW) at 30 min before a single dose of ethanol was given by oral administration (3·0 g/kg BW)...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28605826/inhibition-of-hazardous-compound-formation-in-muscle-foods-by-antioxidative-phytophenols
#10
REVIEW
Youling L Xiong
Individual and mixed herbal extracts, as well as plant spices, are widely used in the preparation of muscle foods to enhance the organoleptic attributes. Abundantly rich in phenolic compounds, many of the phytochemical extracts have been shown to possess strong radical-scavenging and metal ion-binding properties and hence exert antioxidant activity in meat products. Because of their antiradical nature, phenolic acids and flavonoids, such as tea catechins, caffeic acid, chlorogenic acid, and mixed polyphenols derived from rosemary, licorice, and other herbal materials, are capable of inhibiting the formation of harmful secondary products from oxidized lipids and proteins...
June 12, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28603983/food-components-in-health-promotion-and-disease-prevention
#11
Wolfgang Langhans
The current obesity epidemic with its deleterious effects on public health, and the increase in the prevalence of non-communicable diseases in our aging society have dramatically increased public awareness of nutrition-related health issues. Food components such as fat, sugar, flavors and spices are major determinants of the hedonic value of food, and the constant and almost ubiquitous availability of good-tasting food in our affluent societies promotes overeating and weight gain. On the other hand, several food components, including flavoring compounds and the active ingredients of many plants including spices and herbs (e...
June 12, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28601726/identification-and-quantification-of-synthetic-cannabinoids-in-spice-like-herbal-mixtures-update-of-the-german-situation-in-early-2017
#12
Ludger Ernst, Kai Brandhorst, Uli Papke, Anna Altrogge, Simone Zodel, Nico Langer, Till Beuerle
In February 2017, eleven "Spice-like" products (14 individual packages including replicates) from German language internet shops were analyzed. In total, three different synthetic cannabinoids (SCs) were identified by gas-chromatography-mass spectrometry (GC-MS), namely MDMB-CHMICA and two, so far only partially described compounds, 5F-Cumyl-P7AICA and Cumyl-PeGACLONE. All analyzed products contained only one synthetic cannabinoid as active ingredient. 5F-Cumyl-P7AICA and Cumyl-PeGACLONE were subject to an in-depth characterization by nuclear magnetic resonance spectroscopy (NMR), electron ionization mass spectrometry (EI-MS), electrospray ionization tandem mass spectrometry (ESI-MS/MS), infrared and ultraviolet-visible spectroscopy (IR and UV/Vis)...
May 26, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28597159/metabolite-analysis-of-endophytic-fungi-from-cultivars-of-zingiber-officinale-rosc-identifies-myriad-of-bioactive-compounds-including-tyrosol
#13
C Anisha, E K Radhakrishnan
Endophytic fungi associated with rhizomes of four cultivars of Zingiber officinale were identified by molecular and morphological methods and evaluated for their activity against soft rot pathogen Pythium myriotylum and clinical pathogens. The volatile bioactive metabolites produced by these isolates were identified by GC-MS analysis of the fungal crude extracts. Understanding of the metabolites produced by endophytes is also important in the context of raw consumption of ginger as medicine and spice. A total of fifteen isolates were identified from the four varieties studied...
June 2017: 3 Biotech
https://www.readbyqxmd.com/read/28588600/date-palm-tree-phoenix-dactylifera-l-natural-products-and-therapeutic-options
#14
REVIEW
Reem A Al-Alawi, Jawhara H Al-Mashiqri, Jawaher S M Al-Nadabi, Badria I Al-Shihi, Younis Baqi
Many plants, including some of the commonly consumed herbs and spices in our daily food, can be safely and effectively used to prevent and/or treat some health concerns. For example, caffeine the active ingredient found in coffee beans (Coffea), shows biological activity in the treatment of the central nervous system (CNS) disorders, indole-3-carbinol, and 3,3'-diindolylmethane are both broccoli (Brassica oleracea) derived phytochemicals with potential anti-cancer activity, and resveratrol, isolated from grape (Vitis vinifera), is reported to extend lifespan and provide cardio-neuro-protective, anti-diabetic, and anti-cancer effects...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28587218/determination-and-pharmacokinetic-study-of-three-diterpenes-in-rat-plasma-by-uhplc-esi-ms-ms-after-oral-administration-of-rosmarinus-officinalis-l-extract
#15
Liqian Wang, Chunli Gan, Zhibin Wang, Lu Liu, Mingjie Gao, Qian Li, Chunjuan Yang
Rosmarinus officinalis L. is commonly used as a spice and flavoring agent. Diterpenes are the main active compounds of R. officinalis. An Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry (UHPLC-ESI-MS/MS) method was developed for the determination of carnosol, rosmanol, and carnosic acid isolated from R. officinalis in rat plasma, and applied to a pharmacokinetic study after oral administration of R. officinalis extract. Sample preparation involved a liquid-liquid extraction of the analytes with ethyl acetate...
June 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28585209/influence-of-antioxidants-on-leptin-metabolism-and-its-role-in-the-pathogenesis-of-obesity
#16
Harald Mangge, Christian Ciardi, Kathrin Becker, Barbara Strasser, Dietmar Fuchs, Johanna M Gostner
Obesity is associated with low-grade inflammation. Leptin, a hormone made by fat cells regulates appetite and hunger and thus food intake behavior. Interestingly, , food preservatives like sodium sulfite and sodium benzoate and also natural colorant and spice compounds such as curcumin were found to decrease the release of leptin in murine 3T3-L1 adipocytes, after co-incubation with LPS, which was added to mimic the pro-inflammatory status in obesity. Several of these compounds are well known food antioxidants...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28578250/increased-in-synthetic-cannabinoids-related-harms-results-from-a-longitudinal-web-based-content-analysis
#17
Francois R Lamy, Raminta Daniulaityte, Ramzi W Nahhas, Monica J Barratt, Alan G Smith, Amit Sheth, Silvia S Martins, Edward W Boyer, Robert G Carlson
BACKGROUND: Synthetic Cannabinoid Receptor Agonists (SCRA), also known as "K2" or "Spice," have drawn considerable attention due to their potential of abuse and harmful consequences. More research is needed to understand user experiences of SCRA-related effects. We use semi-automated information processing techniques through eDrugTrends platform to examine SCRA-related effects and their variations through a longitudinal content analysis of web-forum data. METHOD: English language posts from three drug-focused web-forums were extracted and analyzed between January 1st 2008 and September 30th 2015...
June 1, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28573647/brazilian-capsicum-peppers-capsaicinoids-content-and-antioxidant-activity
#18
Stanislau Bogusz, Silvia H Libardi, Fernanda F G Dias, Janclei P Coutinho, Vivian C Bochi, Daniele Rodrigues, Arlete M T Melo, Helena T Godoy
BACKGROUND: Capsicum peppers are known as a source of capsaicinoids, phenolic compounds, and antioxidants. Brazilian Capsicum peppers are important spices use in foods worldwide. However, little information is available on the chemical composition and antioxidant activity of these peppers. RESULTS: Capsaicin, dihydrocapsaicin, total phenolic compounds, and antioxidant activity were investigated in the extracts of three Brazilian peppers: Capsicum frutescens, C. chinense and C...
June 2, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28572957/effect-of-spices-formulations-on-the-physicochemical-and-sensory-properties-of-nnam-gon-a-cameroonian-dish-prepared-with-cucurbitaceae-seeds
#19
Josiane E Manejo Djiogue, Richard M Nguimbou, Leopold N Tatsadjieu, Yannick D Mang, Nicolas Y Njintang
Nnam gon, a cake made by steam cooking a mixture of Cucurbitaceae seeds paste and others ingredients specially spices, is a highly prized dish in Central African region. A preliminary investigation conducted as part of this study highlighted that formulations used in the processing of Nnam gon vary according to the spices used. This study was carried out to determine the best formulation for the preparation of this dish. For this purpose, Nnam gon samples were produced from four formulations which differ according to the number of spices used: F0 (no spices); F1 (0...
May 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28572641/application-of-nuclear-magnetic-resonance-spectroscopy-in-food-adulteration-determination-the-example-of-sudan-dye-i-in-paprika-powder
#20
Yaxi Hu, Shuo Wang, Shenlin Wang, Xiaonan Lu
Carcinogenic Sudan I has been added illegally into spices for an apparent freshness. (1)H solution and solid-state (SS) nuclear magnetic resonance (NMR) spectroscopies were applied and compared for determination of Sudan I in paprika powders (PPs). For solution NMR, PPs spiked with Sudan I were extracted with acetonitrile, centrifuged, rotor-evaporated, and re-dissolved in DMSO-d6 for spectral collection. For SSNMR, Sudan I contaminated PPs were mixed with DMSO-d6 solution and used for spectral collection. Linear regression models constructed for quantitative analyses resulted in the average accuracies for unknown samples as 98% and 105%, respectively...
June 1, 2017: Scientific Reports
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