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https://www.readbyqxmd.com/read/28185379/feed-degradability-rumen-fermentation-and-blood-metabolites-in-response-to-essential-oil-addition-to-fistulated-non-lactating-dairy-cow-diets
#1
Wisitiporn Suksombat, Atitthan Nanon, Chayapol Meeprom, Pipat Lounglawan
The effects of essential oils (EOs) on ruminal nutrient disappearance, rumen fermentation and blood metabolites in fistulated non-lactating dairy cows were studied. Four fistulated non-lactaing dairy cows were used in a 4 × 4 Latin square design; the experiment consisted of four periods of 21 days in each period, with the first 14 days for adaptation followed by 7 days of measurement period. Animals were fed 3 kg/day of 21% crude protein (CP) concentrate and ad libitum corn silage. Treatments were: (i) control; (ii) 2 mL Allicin/cow/day; (iii) 2 mL zingiberene/cow/day; and (iv) 2 mL citral/cow/day...
February 9, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28178379/antigenotoxic-effect-against-ultraviolet-radiation-induced-dna-damage-of-the-essential-oils-from-lippia-species
#2
Nathalia Quintero Ruiz, Yuri Cordoba Campo, Elena E Stashenko, Jorge Luis Fuentes
The antigenotoxicity against ultraviolet radiation (UV) -induced DNA damage of essential oils (EO) from Lippia species was studied using SOS Chromotest. Based on the minimum concentration that significantly inhibits genotoxicity, the genoprotective potential of EO from highest to lowest was L. alba, citral -rich chemotype (RC) > L. graveolens, thymol-RC ≈ L. origanoides, thymol-RC ≈ L. origanoides, carvacrol-RC > L. micromera, thymol-RC ≈ L. citriodora, citral-RC > L. alba, myrcenone-RC > L...
February 8, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28177735/protective-effects-of-essential-oil-of-citrus-limon-against-aspirin-induced-toxicity-in-iec-6-cells
#3
Hafsia Bouzenna, Najla Hfaiedh, Marie-Agnès Giroux-Metges, Abdelfattah Elfeki, Hélène Talarmin
Aspirin, one of the widely used non-steroidal anti-inflammatory drugs, is the most highly consumed pharmaceutical product in the world. However, it has several side effects in cells. This study was designed to investigate the antioxidative activity and cytoprotective effects of essential oil of Citrus limon (EOC) extracted from leaves against aspirin-induced damages in the rat small intestine epithelial cells (IEC-6). Biochemical indicators were used to assess cytotoxicity and oxidative damages caused by aspirin treatment on IEC-6...
December 15, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28176464/enantioselective-reduction-of-citral-isomers-in-ncr-ene-reductase-analysis-of-an-active-site-mutant-library
#4
Nico Kress, Johanna Rapp, Bernhard Hauer
A deepened understanding of the > 99 % (S)-selective NCR ene reductase catalyzed reduction of both isomers of citral was generated by active site mutational studies and docking. Though structurally almost similar, the (E/Z)-isomers of citral showed a significantly varying selectivity response to introduced mutations. While it was possible to invert (E) citral reduction enantioselectivity to an e.e. of 46 % (R) by a W66A mutation, for (Z)-citral it remained ≥ 88 % (S) for all analyzed NCR single variants...
February 8, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28158965/largely-different-contents-of-terpenoids-in-beef-red-flesh-tangerine-and-its-wild-type
#5
Wenyun Li, Cuihua Liu, Min He, Jinqiang Li, Yongqiang Cai, Yuhua Ma, Juan Xu
BACKGROUND: Niurouhong (Citrus reticulata Blanco. Niurouhong) (NRH) is a spontaneous beef-red flesh mutant with distinctive flavor compared with its wild type orange-red flesh Zhuhongju (ZHJ). To illustrate the biochemical mechanism of its special flesh color and flavor, fruits at commercial mature stage were used to profile the volatiles in the flavedo and determine the levels of carotenoids, limonoid aglycones and phytohormones in the juice sacs in two seasons. RESULTS: Our results showed the content of total volatile terpenoids in NRH was 1...
February 3, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28106093/insecticidal-toxicities-of-carvacrol-and-thymol-derived-from-thymus-vulgaris-lin-against-pochazia-shantungensis-chou-lu-newly-recorded-pest
#6
Jun-Hwan Park, Ye-Jin Jeon, Chi-Hoon Lee, Namhyun Chung, Hoi-Seon Lee
The insecticidal toxicities of five essential oils against Pochazia shantungensis adults and nymphs, newly recorded pests, were evaluated. The LC50 values of Thymus vulgaris, Ruta graveolens, Citrus aurantium, Leptospermum petersonii and Achillea millefolium oils were recorded as 57.48, 84.44, 92.58, 113.26 and 125.78 mg/L, respectively, against P. shantungensis nymphs using the leaf dipping bioassay, and 75.80, 109.86, 113.26, 145.06 and 153.74 mg/L, respectively, against P. shantungensis adults using the spray bioassay method...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28103929/chemical-composition-and-some-biological-activities-of-the-essential-oils-from-basil-ocimum-different-cultivars
#7
Arpi Avetisyan, Anahit Markosian, Margarit Petrosyan, Naira Sahakyan, Anush Babayan, Samvel Aloyan, Armen Trchounian
BACKGROUND: The plants belonging to the Ocimum genus of the Lamiaceae family are considered to be a rich source of essential oils which have expressed biological activity and use in different area of human activity. There is a great variety of chemotypes within the same basil species. Essential oils from three different cultivars of basil, O. basilicum var. purpureum, O. basilicum var. thyrsiflora, and O. citriodorum Vis. were the subjects of our investigations. METHODS: The oils were obtained by steam distillation in a Clevenger-type apparatus...
January 19, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28093037/encapsulation-of-lemongrass-oil-with-cyclodextrins-by-spray-drying-and-its-controlled-release-characteristics
#8
Sarunya Phunpee, Uracha Rangsadthong Ruktanonchai, Hidefumi Yoshii, Suttichai Assabumrungrat, Apinan Soottitantawat
Inclusion of the two isomers of citral (E-citral and Z-citral), components of lemongrass oil, was investigated within the confines of various cyclodextrin (α-CD, β-CD and γ-CD) host molecules. Aqueous complex formation constants for E-citral with α-CD, β-CD and γ-CD were determined to be 123, 185, and 204 L/mol, respectively, whereas Z-citral exhibited stronger affinities (157, 206, and 253 L/mol, respectively). The binding trend γ-CD > β-CD > α-CD is a reflection of the more favorable geometrical accommodation of the citral isomers with increasing cavity size...
January 17, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28088731/biological-properties-of-citral-and-its-potential-protective-effects-against-cytotoxicity-caused-by-aspirin-in-the-iec-6-cells
#9
Hafsia Bouzenna, Najla Hfaiedh, Marie-Agnès Giroux-Metges, Abdelfattah Elfeki, Hélène Talarmin
Citral, 3,7-dimethyl-2,6-octadienal, is a key component of several essential oils extracted from lemon-scented herbal plants. The present study was designed to investigate the antioxidant activities of citral and assess its possible protective effects against aspirin-induced toxicity in vitro. We used IEC-6 cells (rat small intestine epithelial cells). The antioxidant activities were determined by 1,1-diphenyl-2-picrylhydrazyl (DPPH), β-carotene/linoleic acid and Ferric reducing antioxidant power (FRAP). Cytotoxicity was evaluated by cell viability, anti-oxidant enzyme activities, malondialdehyde (MDA) production and by the expression of MAPKs (Mitogen-Activated Protein Kinases) pathways...
January 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27979111/preparation-and-characterization-of-essential-oil-loaded-starch-nanoparticles-formed-by-short-glucan-chains
#10
Chao Qiu, Ranran Chang, Jie Yang, Shengju Ge, Liu Xiong, Mei Zhao, Man Li, Qingjie Sun
Essential oils (EOs), including menthone, oregano, cinnamon, lavender, and citral, are natural products that have antimicrobial and antioxidant activities. However, extremely low water solubility, and easy degradation by heat, restrict their application. The aim of this work was to evaluate the enhancement in antioxidative and antimicrobial activities of EOs encapsulated in starch nanoparticles (SNPs) prepared by short glucan chains. For the first time, we have successfully fabricated menthone-loaded SNPs (SNPs-M) at different complexation temperatures (30, 60, and 90°C) by an in situ nanoprecipitation method...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27976108/ginger-oil-and-its-active-ingredient-citral-relax-rat-airway-smooth-muscle-by-calcium-channel-blockade
#11
T Mangprayool, N Chudapongse
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27894210/protective-effects-of-lemongrass-essential-oil-against-benzo-a-pyrene-induced-oxidative-stress-and-dna-damage-in-human-embryonic-lung-fibroblast-cells
#12
Jiao Jiang, Henggui Xu, Hetong Wang, Yining Zhang, Ping Ya, Chun Yang, Fasheng Li
Benzo(a)pyrene (BaP) was a well-known environmental pollutant, numerous studies had implicated BaP as a causative agent in human cancer, particularly lung cancer. The lemongrass essential oil (LEO) possessed various pharmacological activities, especially the anti-oxidative stress and cancer prevention. In the current study, human embryonic lung fibroblast (HELF) cells were treated with 25 mM BaP in the absence or presence of 0.5%, 1% or 2.5% LEO and the cell viability and levels of oxidative stress (OS) and DNA damage in the cells were then measured...
December 28, 2016: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/27877042/effects-of-carbopol-%C3%A2-934-proportion-on-nanoemulsion-gel-for-topical-and-transdermal-drug-delivery-a-skin-permeation-study
#13
Yin Zheng, Wu-Qing Ouyang, Yun-Peng Wei, Shahid Faraz Syed, Chao-Shuang Hao, Bo-Zhen Wang, Yan-Hong Shang
Nanoemulsions (NEs) are used as transdermal drug delivery systems for systematic therapeutic purposes. We hypothesized that the skin permeation profile of an NE could be modulated by incorporating it into a hydrogel containing differing proportions of thickening agent. The objectives of this study were as follows: 1) to determine the stability and skin irritability of NE gels (NGs) containing 1%, 2%, and 3% (w/w) Carbopol(®) 934 (CP934) (termed NG1, NG2, and NG3, respectively); 2) to compare the skin permeation profiles and drug deposition patterns of the NGs; and 3) to visualize the drug delivery routes of the NGs...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27859362/citral-stabilization-and-characterization-of-nanoemulsions-stabilized-by-a-mixture-of-gelatin-and-tween-20-in-an-acidic-system
#14
Huaixiang Tian, Danfeng Li, Ting Xu, Jing Hu, Yuzhi Rong, Bo Zhao
BACKGROUND: Citral is one of the most important flavor compounds in fresh juice and lemon oil. Unfortunately, citral is chemically unstable and degrades over time in aqueous solutions. Here, citral nanoemulsions including a mixture of gelatin and Tween 20 as emulsifiers were produced in an effort to maintain the stability of citral in an acidic system. RESULTS: The mean droplet size and polydispersity index (PDI) of the citral nanoemulsions were 467.83 nm and 0...
November 17, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27854038/biosynthesis-of-glycomonoterpenes-to-attenuate-quorum-sensing-associated-virulence-in-bacteria
#15
Amrita Patil, Kasturi Joshi-Navre, Ruchira Mukherji, Asmita Prabhune
The acquisition of multidrug resistance in bacteria has become a bigger threat of late, mainly due to the bacterial signaling phenomenon, quorum sensing (QS). QS, among a population of bacteria, initiates the formation of biofilms and offers myriad advantages to bacteria. Burgeoning antibiotic resistance in biofilm-producing bacteria has motivated efforts toward finding new alternatives to these traditional antimicrobials. In the present study, we report the increased solubility and additional quorum quenching as well as biofilm disruption activity of glyco-derivatives of monoterpenes (citral and citronellal)...
November 16, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27825341/essential-oils-in-vitro-activity-against-leishmania-amazonensis-cytotoxicity-and-chemical-composition
#16
Milene Aparecida Andrade, Clênia Dos Santos Azevedo, Flávia Nader Motta, Maria Lucília Dos Santos, Camila Lasse Silva, Jaime Martins de Santana, Izabela M D Bastos
BACKGROUND: The current chemotherapy for cutaneous leishmaniosis (CL) has a series of drug limitations such as toxic side effects, long duration, high costs and drug resistance, which requires the development of new drugs or effective alternatives to the CL treatment. Essential oils (EOs) are complex mixtures of secondary metabolites from various plants. It has been shown that several EOs, or their constituents, have inhibitory activity against protozoa. Thus, this study aims to evaluate the biological activity of different essential oils (EOs) on Leishmania (L...
November 8, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27802570/overall-quality-properties-of-kiwifruit-treated-by-cinnamaldehyde-and-citral-microbial-antioxidant-capacity-during-cold-storage
#17
Yuan Wang, Tingting Shan, Yahong Yuan, Tianli Yue
This work was undertaken to evaluate the microbiological characteristics and antioxidant and physiological activities in kiwifruits (Actinida deliciosa var. Qinmei) with/without cinnamaldehyde (C1) and citral (C2) fumigation treatments (5 μL/L) during 0, 3, 6, 9, and 12 d of storage at 4 °C. Essential oils (EOs) treatment lowered the total viable counts, yeast, and mold to 1.54, 2.36, and 2.05 log CFU/g, respectively. Moreover, EOs improved the antioxidant activities of kiwifruit. They enhanced phenolics and flavonoids content in fruit tissue by 49...
December 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27784920/the-effect-of-ginger-and-garlic-addition-during-cooking-on-the-volatile-profile-of-grass-carp-ctenopharyngodon-idella-soup
#18
Jin-Lin Li, Zong-Cai Tu, Lu Zhang, Xiao-Mei Sha, Hui Wang, Juan-Juan Pang, Ping-Ping Tang
Ginger and garlic have long been used in Asian countries to enhance the flavor and to neutralize any unpleasant odors present in fish soup. The purpose of this study was to evaluate the change in the amount of volatile components present in fish soup compared to boiled water solutions of ginger and garlic. The fish soup was prepared by boiling oil-fried grass carp (Ctenopharyngodon idella) with or without ginger and/or garlic. Generally, boiling garlic and ginger in water led to a decrease in the amount of the principal volatile constituents of these spices, together with the formation of some new volatiles such as pentanal, hexanal, and nonanal...
August 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27782845/chemical-composition-anthelmintic-antibacterial-and-antioxidant-effects-of-thymus-bovei-essential-oil
#19
Nidal Jaradat, Lina Adwan, Shadi K'aibni, Naser Shraim, Abdel Naser Zaid
BACKGROUND: It has been recently recognized that oxidative stress, helminth and microbial infections are the cause of much illness found in the underdeveloped, developing and developed countries. The present study was undertaken to identify the chemical composition, and to assess anthelmintic, antimicrobial and antioxidant effects of Thymus bovei essential oil. METHODS: The chemical composition of the essential oil was analyzed using gas chromatography mass spectrometry (GC-MS)...
October 26, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27765606/effect-of-lippia-alba-and-cymbopogon-citratus-essential-oils-on-biofilms-of-streptococcus-mutans-and-cytotoxicity-in-cho-cells
#20
A Tofiño-Rivera, M Ortega-Cuadros, D Galvis-Pareja, H Jiménez-Rios, L J Merini, M C Martínez-Pabón
BACKGROUND: Caries is a public health problem, given that it prevails in 60 to 90% of the school-age global population. Multiple factors interact in its etiology, among them dental plaque is necessary to have lactic acid producing microorganisms like Streptococcus from he Mutans group. Existing prevention and treatment measures are not totally effective and generate adverse effects, which is why it is necessary to search for complementary strategies for their management. AIM: The study sought to evaluate the eradication capacity of Streptococcus mutans biofilms and the toxicity on eukaryotic cells of Lippia alba and Cymbopogon citratus essential oils...
December 24, 2016: Journal of Ethnopharmacology
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