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Caprylic

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https://www.readbyqxmd.com/read/28069208/ultrasound-pretreatment-as-a-novel-approach-for-intensification-of-lipase-catalyzed-esterification-of-tricaprylin
#1
Snehal B More, Jyotsna T Waghmare, Parag R Gogate
The current work deals with ultrasound assisted intensification of synthesis of tricaprylin based on the enzyme catalyzed reaction of caprylic acid and glycerol with novel approach of using ultrasound in only the initial stages of the reaction. Two types of immobilized lipases as Lipozyme RM (Rhizomucor miehei) and Novozym 435 (Candida antarctica) have been used in the work. The effect of ultrasonic conditions such as treatment time and power as well as the reaction conditions such as substrate molar ratio, reaction time and enzyme loading on the yield of tricaprylin has been investigated...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28025123/structured-dag-oil-ameliorates-renal-injury-in-streptozotocin-induced-diabetic-rats-through-inhibition-of-nf-%C3%AE%C2%BAb-and-activation-of-nrf2-pathway
#2
Kankana Das, Mahua Ghosh
Accumulating evidence suggested that inflammatory processes are involved in the development of diabetic nephropathy (DN). Here, we have tested the hypothesis that Caprylic Acid (Cy)-diacylglycerol (DAG) oil (Cy-DAG), a novel structurally formulated lipid with high nutritional value, ameliorated DN in streptozotocin (STZ)-induced diabetic rats through the anti-inflammatory mechanisms. Basic hematological, biochemical parameters, immunoblotting, immunofluorescence and flow cytometry analysis were performed to observe the anti-inflammatory potential of Cy-DAG oil...
February 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28009872/medium-chain-fatty-acids-reduce-serum-cholesterol-by-regulating-the-metabolism-of-bile-acid-in-c57bl-6j-mice
#3
Yinghua Liu, Yong Zhang, Xinsheng Zhang, Qing Xu, Xueyan Yang, Changyong Xue
Hypercholesterolemia is one of the important risk factors of atherosclerosis (AS). The aim of this study is to explore the effect of medium-chain fatty acids (MCFAs) on serum cholesterol levels and their mechanism of action. Hyperlipemia, as a model of abnormal lipid hypermetabolism, was established by using a high fat diet in C57BL/6J mice. Forty eight mice with dyslipidemia were randomly divided into 4 groups, 12 mice per group, including the control group, the 2% caprylic acid (C8:0)-treated group, 2% capric acid (C10:0)-treated group, and 2% oleic acid (C18:1)-treated group...
December 23, 2016: Food & Function
https://www.readbyqxmd.com/read/27989820/in-situ-single-pass-intestinal-permeability-and-pharmacokinetic-study-of-developed-lumefantrine-loaded-solid-lipid-nanoparticles
#4
Anuj Garg, Kripal Bhalala, Devendra Singh Tomar, Wahajuddin
The present investigation aims to develop lumefantrine loaded binary solid lipid nanoparticles (LF-SLNs) to improve its poor and variable oral bioavailability. The oral bioavailability of LF is poor and variable due to its limited aqueous solubility and P-gp mediated efflux occurring in small intestine. LF-SLNs were prepared using binary lipid mixture of stearic acid and caprylic acid stabilized with TPGS (D-alpha tocopheryl polyethylene glycol 1000 succinate) and Poloxamer 188. Developed LF-SLNs were characterized for particle size distribution, zeta potential, entrapment efficiency, solid state properties and biopharmaceutical properties including in situ intestinal permeability and oral bioavailability...
January 10, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27979179/an-innovative-method-for-analysis-of-pb-ii-in-rice-milk-and-water-samples-based-on-tio2-reinforced-caprylic-acid-hollow-fiber-solid-liquid-phase-microextraction
#5
Shahriyar Bahar, Zarrin Es'haghi, Azizollah Nezhadali, Alireza Banaei, Shahab Bohlooli
In the present study, nano-sized titanium oxides were applied for preconcentration and determination of Pb(II) in aqueous samples using hollow fiber based solid-liquid phase microextraction (HF-SLPME) combined with flame atomic absorption spectrometry (FAAS). In this work, the nanoparticles dispersed in caprylic acid as an extraction solvent was placed into a polypropylene porous hollow fiber segment supported by capillary forces and sonification. This membrane was in direct contact with solutions containing Pb (II)...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27933053/waste-conversion-into-n-caprylate-and-n-caproate-resource-recovery-from-wine-lees-using-anaerobic-reactor-microbiomes-and-in-line-extraction
#6
Leo A Kucek, Jiajie Xu, Mytien Nguyen, Largus T Angenent
To convert wastes into sustainable liquid fuels and chemicals, new resource recovery technologies are required. Chain elongation is a carboxylate-platform bioprocess that converts short-chain carboxylates (SCCs) (e.g., acetate [C2] and n-butyrate [C4]) into medium-chain carboxylates (MCCs) (e.g., n-caprylate [C8] and n-caproate [C6]) with hydrogen gas as a side product. Ethanol or another electron donor (e.g., lactate, carbohydrate) is required. Competitive MCC productivities, yields (product vs. substrate fed), and specificities (product vs...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27889148/surface-attachment-of-active-antimicrobial-coatings-onto-conventional-plastic-based-laminates-and-performance-assessment-of-these-materials-on-the-storage-life-of-vacuum-packaged-beef-sub-primals
#7
David Clarke, Andrey A Tyuftin, Malco C Cruz-Romero, Declan Bolton, Seamus Fanning, Shashi K Pankaj, Carmen Bueno-Ferrer, Patrick J Cullen, Joe P Kerry
Two antimicrobial coatings, namely Sodium octanoate and Auranta FV (a commercial antimicrobial composed of bioflavonoids, citric, malic, lactic, and caprylic acids) were used. These two antimicrobials were surface coated onto the inner polyethylene layer of cold plasma treated polyamide films using beef gelatin as a carrier and coating polymer. This packaging material was then used to vacuum pack beef sub-primal cuts and stored at 4 °C. A control was prepared using the non-coated commercial laminate and the same vacuum packaged sub-primal beef cuts...
April 2017: Food Microbiology
https://www.readbyqxmd.com/read/27885330/formulation-of-propolis-phenolic-acids-containing-microemulsions-and-their-biopharmaceutical-characterization
#8
Modestas Žilius, Kristina Ramanauskienė, Vaida Juškaitė, Vitalis Briedis
Microemulsions (MEs) were formulated using PEG-8 caprylic/capric glycerides and ethanolic propolis extracts. Characterization of MEs was performed by determining mean droplet size, polydispersity index, stability under varying external factors, and formulation effect on delivery of phenolic compounds into the skin ex vivo. Essential oils were included into the formulations of MEs and their influence on physical characteristics of the nanostructured systems as well as penetration into epidermis and dermis were evaluated...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27780957/purification-and-properties-of-extracellular-lipases-with-transesterification-activity-and-1-3-regioselectivity-from-rhizomucor-miehei-and-rhizopus-oryzae
#9
Miklós Takó, Alexandra KotogÁn, TamÁs Papp, Shine Kadaikunnan, Naiyf S Alharbi, Csaba VÁgvölgyi
Rhizomucor miehei NRRL 5282 and Rhizopus oryzae NRRL 1526 can produce lipases with high synthetic activities in wheat bran-based solid state culture. In this study, purification and biochemical characterization of the lipolytic activities of these lipases are presented. SDS-PAGE indicated a molecular mass of about 55 and 35 kDa for the purified R. miehei and Rh. oryzae enzymes, respectively. p-Nitrophenyl palmitate (pNPP) hydrolysis was maximal at 40°C and pH 7.0 for the R. miehei lipase, and at 30°C and pH 5...
October 25, 2016: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27719942/synthesis-of-medium-chain-length-capsinoids-from-coconut-oil-catalyzed-by-candida-rugosa-lipases
#10
Jovana Trbojević Ivić, Nenad Milosavić, Aleksandra Dimitrijević, Marija Gavrović Jankulović, Dejan Bezbradica, Dušan Kolarski, Dušan Veličković
A commercial preparation of Candida rugosa lipases (CRL) was tested for the production of capsinoids by esterification of vanillyl alcohol (VA) with free fatty acids (FA) and coconut oil (CO) as acyl donors. Screening of FA chain length indicated that C8-C12 FA (the most common FA found in CO triglycerides) are the best acyl-donors, yielding 80-85% of their specific capsinoids. Hence, when CO, which is rich in these FA, was used as the substrate, a mixture of capsinoids (vanillyl caprylate, vanillyl decanoate and vanillyl laurate) was obtained...
March 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27716592/discovery-and-preclinical-development-of-a-novel-prodrug-conjugate-of-mesalamine-with-eicosapentaenoic-acid-and-caprylic-acid-for-the-treatment-of-inflammatory-bowel-diseases
#11
Mahesh Kandula, K B Sunil Kumar, Sivanesan Palanichamy, Ashok Rampal
Mesalamine (5-ASA) is one of the drugs indicated as first line therapy in ulcerative colitis for induction and maintenance of remission. Sulfasalazine and formulations of 5-ASA (pH-dependent and controlled release formulations) were developed to minimize the systemic absorption and maximize the delivery of the mesalamine to colon. Although, its efficacy and safety is well documented there are approximately 30% nonresponders to 5-ASA therapy. This necessitates the need for novel therapeutic options to improve the efficacy and safety of the currently available 5-ASA therapy...
November 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27679437/in-silico-and-wet-lab-studies-reveal-the-cholesterol-lowering-efficacy-of-lauric-acid-a-medium-chain-fat-of-coconut-oil
#12
Devi Lekshmi Sheela, Puthiyaveetil Abdulla Nazeem, Arunaksharan Narayanankutty, Jeksy Jos Manalil, Achuthan C Raghavamenon
The coconut oil (CO) contains 91 % of saturated fatty acids in which 72 % are medium chain fatty acids (MCFAs) like lauric, capric and caprylic acids. In contrast to animal fat, coconut oil has no cholesterol. Despite this fact, CO is sidelined among other vegetable oils due to the health hazards attributed to the saturated fatty acids. Though various medicinal effects of CO have been reported including the hypolipidemic activity, people are still confused in the consumption of this natural oil. In silico analyses and wet lab experiments have been carried out to identify the hypolipidemic properties of MCFAs and phenolic acids in CO by using different protein targets involved in cholesterol synthesis...
December 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27664650/evaluation-of-volatile-compounds-from-chinese-dwarf-cherry-cerasus-humilis-bge-sok-germplasms-by-headspace-solid-phase-microextraction-and-gas-chromatography-mass-spectrometry
#13
Liqin Ye, Chunxiang Yang, Weidong Li, Jiangbo Hao, Meng Sun, Jingru Zhang, Zhongshuang Zhang
The types and amounts of volatiles in denucleated fruit of 30 Chinese dwarf cherry germplasms were determined by headspace solid-phase microextraction and gas chromatography-mass spectrometry to assess the genotypic variation. Eighty-five volatiles were identified; hexyl acetate, 4-penten-1-yl acetate, prenyl acetate, (Z)-pent-2-enyl hexanoate, geranyl acetate, n-butyl acetate, (3Z)-3,7-dimethylocta-1,3,6-triene, geraniol, pent-2-enyl butanoate, ethyl caprylate, butyl hexanoate, and linalool were the main volatiles...
February 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27627660/anti-human-platelet-antigen-1a-immunoglobulin-g-preparation-intended-to-prevent-fetal-and-neonatal-alloimmune-thrombocytopenia
#14
Ying-Jan Weng, Anne Husebekk, Björn Skogen, Mette Kjaer, Liang-Tzung Lin, Thierry Burnouf
Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a severe disease that is caused by maternal alloantibodies generated during pregnancy or at delivery as a result of incompatibility between maternal and fetal human platelet antigens (HPAs) inherited from the father. Antibody-mediated immune suppression using anti-HPA-1a immunoglobulins is thought to be able to prevent FNAIT caused by HPA-1a. A fractionation process to prepare anti-HPA-1a immunoglobulin (Ig) G (IgG) from human plasma was therefore developed...
2016: PloS One
https://www.readbyqxmd.com/read/27597268/antibacterial-action-of-lipid-nanocapsules-containing-fatty-acids-or-monoglycerides-as-co-surfactants
#15
Anita Umerska, Viviane Cassisa, Nada Matougui, Marie-Laure Joly-Guillou, Matthieu Eveillard, Patrick Saulnier
Lipid nanocapsules (LNCs) are a new generation of biomimetic nanocarriers obtained via a phase inversion temperature method and have an oily core of medium-chain triglycerides that is surrounded by a shelf containing a lipophilic surfactant (lecithin) and a hydrophilic surfactant macrogol 15-hydroxystearate. The aim of the present study was to produce LNCs with antibacterial activity by replacing lecithin with other lipophilic surface active compounds, namely medium-chain fatty acids and their 1-monoglycerides, which are known to have antimicrobial properties...
November 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27580160/construction-of-thermophilic-lipase-embedded-metal-organic-frameworks-via-biomimetic-mineralization-a-biocatalyst-for-ester-hydrolysis-and-kinetic-resolution
#16
Hongming He, Haobo Han, Hui Shi, Yuyang Tian, Fuxing Sun, Yang Song, Quanshun Li, Guangshan Zhu
Enhancing the activity and stability of enzymes and improving their reusability are critical challenges in the field of enzyme immobilization. Here we report a facile and efficient biomimetic mineralization to embed thermophilic lipase QLM in zeolite imidazolate framework-8 (ZIF-8). Systematic characterization indicated that the entrapment of lipase molecules was successfully achieved during the crystal growth of ZIF-8 with an enzyme loading of ∼72.2 ± 1.88 mg/g lipase@ZIF-8, and the enzymes could facilitate the construction of framework building blocks...
September 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27553650/effects-of-medium-chain-fatty-acids-on-the-structure-and-immune-response-of-ipec-j2-cells
#17
B Martínez-Vallespín, W Vahjen, J Zentek
Medium-chain fatty acids (MCFAs) have been suggested as an alternative to the use of antibiotics in animal nutrition with promising results. First, we studied the sensitivity of Salmonella Enteritidis and an enteropathogenic Escherichia coli strain against caprylic (C8), capric (C10) and lauric (C12) acids. A porcine in vitro model using the porcine cell line IPEC-J2 was used to test the effects of MCFAs on structural and immunological traits without and with a concomitant challenge with E. coli or S. Enteritidis...
October 2016: Cytotechnology
https://www.readbyqxmd.com/read/27543066/nanostructured-lipid-carriers-as-robust-systems-for-topical-lidocaine-prilocaine-release-in-dentistry
#18
Lígia N M Ribeiro, Michelle Franz-Montan, Márcia C Breitkreitz, Ana C S Alcântara, Simone R Castro, Viviane A Guilherme, Raquel M Barbosa, Eneida de Paula
In dental practice, local anesthesia causes pain, fear, and stress, and is frequently the reason that patients abandon treatment. Topical anesthetics are applied in order to minimize the discomfort caused by needle insertion and injection, and to reduce the symptoms of superficial trauma at the oral mucosa, but there are still no efficient commercially available formulations. Factorial design is a multivariate data analysis procedure that can be used to optimize the manufacturing processes of lipid nanocarriers, providing valuable information and minimizing development time...
October 10, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27507773/application-of-compound-mixture-of-caprylic-acid-iron-and-mannan-oligosaccharide-against-sparicotyle-chrysophrii-monogenea-polyopisthocotylea-in-gilthead-sea-bream-sparus-aurata
#19
George Rigos, Ivona Mladineo, Chrysa Nikoloudaki, Anamarija Vrbatovic, Dimitra Kogiannou
We have evaluated the therapeutic effect of a compound mixture of caprylic acid (200 mg/kg fish), organic iron (0.2% of diet) and mannan oligosaccharide (0.4% of diet) in gilthead sea bream, Sparus aurata Linnaeus, infected with Sparicotyle chrysophrii Beneden et Hesse, 1863 in controlled conditions. One hundred and ten reared and S. chrysophrii-free fish (197 g) located in a cement tank were infected by the parasite two weeks following the addition of 150 S. chrysophrii-infected fish (70 g). Growth parameters and gill parasitic load were measured in treated against control fish after a ten-week-period...
2016: Folia Parasitologica
https://www.readbyqxmd.com/read/27458213/eradication-of-staphylococcus-aureus-catheter-related-biofilm-infections-using-ml-8-and-citrox
#20
S Hogan, M Zapotoczna, N T Stevens, H Humphreys, J P O'Gara, E O'Neill
Staphylococci are a leading cause of catheter-related infections (CRIs) due to biofilm formation. CRIs are typically managed by either device removal or systemic antibiotics, often in combination with catheter lock solutions (CLSs). CLSs provide high concentrations of the antimicrobial agent at the site of infection. However, the most effective CLSs against staphylococcal biofilm-associated infections have yet to be determined. The purpose of this study was to evaluate the efficacy and suitability of two newly described antimicrobial agents, ML:8 and Citrox, as CLSs against Staphylococcus aureus biofilms...
October 2016: Antimicrobial Agents and Chemotherapy
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