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Kan Shidong - - 2012
Resting cells of Fusarium oxysporum f. sp. Cucumerinum (F. oxsporum) were used for the biotransformation of salvianolic acid B (Sal B). Three transformed products, isolithospermic acid, prolithospermic acid and danshensu, were identified on the basis of chemical and spectroscopic data. The stability of the two ester bonds of Sal B ...
Paredes Eduardo - - 2012
The copper(I) catalyzed azide-alkyne cycloaddition 'click' reaction yields a specific product under mild conditions and in some of the most chemically complex environments. This reaction has been used extensively to tag DNA, proteins, glycans and only recently RNA. Click reactions in aqueous buffer typically include a ligand for Cu(I), however ...
McKenzie Marian J - - 2012
Cold-induced sweetening (CIS) is a serious postharvest problem for potato tubers, which need to be stored cold to prevent sprouting and pathogenesis in order to maintain supply throughout the year. During storage at cold temperatures (below 10 (o) C), many cultivars accumulate free reducing sugars derived from a breakdown of ...
Park Young-Seo - - 2012
The effects of kimchi and freeze-dried kimchi-powder added to raw meat mixtures on the microbiological quality of fermented sausage were studied. The results clearly demonstrated that the lactic acid bacteria (LAB) integrated via the addition of kimchi as well as kimchi-powder were well adapted to the new habitat of fermenting ...
Hu Xun - - 2012
Acid treatments of xylose have been performed in a methanol/water mixture to investigate the reaction pathways of xylose during bio-oil esterification. Xylose was mainly converted into methyl xylosides with negligible humins formed below 130 °C. However, humins formation became significant with the dehydration of xylose to furfural and 2-(dimethoxymethyl)furan (DOF) at ...
Alborzi Solmaz - - 2012
In this study, we investigated the effect of alginate-pectin-poly(ethylene oxide) (PEO) electrospun fibres on the stability of folic acid. Fibre-forming solutions containing folic acid were prepared by blending low- or medium-viscosity alginate with pectin. PEO was added to make the electrospinning process possible. Folic acid encapsulated in electrospun fibres achieved ...
Lee M R F - - 2012
When fractionation of meat lipids is not required, procedures such as saponification can be used to extract total fatty acids, reducing reliance on toxic organic compounds. However, saponification of muscle fatty acids is laborious, and requires extended heating times, and a second methylation step to convert the extracted fatty acids ...
Nakano Shu-Ichi - - 2012
Characterization of metal ion binding to RNA and DNA base pairs is important for understanding their energy contribution to the folding and conformational changes of nucleic acid structures. In this study, we examine the equilibrium shift from the hairpin toward the dimer formation, induced by nonspecifically bound metal ions. The ...
Kannoujia Dileep Kumar - - 2012
Herein, a simple and rapid method is described for detection of l-ascorbic acid by ascorbate oxidase immobilized onto polycarbonate strip pre-activated by 1-fluoro-2-nitro-4-azidobenzene in photochemical reaction. Covalent attachment of ascorbate oxidase was confirmed by XPS studies. The immobilized-ascorbate oxidase shows higher pH, thermal and storage stability in comparison to free ...
Conti Fosca - - 2012
Poly(2,5-benzimidazole) (AB-PBI) membranes are investigated by studying the FT-Raman signals due to the benzimidazole ring vibration together with the C-C and C-H out-of- and in-plane ring deformations. By immersion in aqueous ortho-phosphoric acid for different time periods, membranes with various doping degrees, i.e. different molar fractions of acid, are prepared. ...
Liu Yihan - - 2012
AIMS: The purpose of this research was to obtain the mutant of Bacillus licheniformis alpha amylase (BLA) with improved acid stability and elucidate the difference in catalytic mechanism under acidic conditions between wild type and mutant BLAs. METHODS AND RESULTS: The stability of BLA under acid condition was enhanced through ...
Sahle Fitsum F - - 2012
Ceramide AP (CER [AP]) is an integral component of the stratum corneum (SC) lipid matrix and is capable of forming tough and super stable lamellae. It may help to restore the barrier function in aged and affected skin. However, its effectiveness from conventional dosage forms is limited due to its ...
Shokri Alireza - - 2012
The pKa of an acyclic aliphatic heptaol ((HOCH2CH2CH(OH)CH2)3COH) was measured in DMSO and its gas-phase acidity is reported as well. This tertiary alcohol was found to be 1021 times more acidic than tert-butanol in DMSO and an order of magnitude more acidic than acetic acid (i.e., pKa = 11.4 vs ...
- - 2012
At the request of the Managing Editor the following paper has been retracted: F. Pop. (2011). 'Chemical stabilization of oils rich in long-chain polyunsaturated fatty acids during storage', Food Science and Technology International 17: 111-117, DOI: 10.1177/1082013210368738.
Grassino A Nincevic - - 2012
In this research compositional changes of tinplate-canned tomato purées, with or without the addition of essential onion oil were investigated. The study was focused on the analyses of carbohydrates and carboxylic acids in two groups of canned samples (with or without nitrates) to determine whether their chemical composition was affected ...
Parks A R Hoyle - - 2012
Lactic acid bacteria (LAB) can reduce Escherichia coli O157:H7 and Salmonella spp. in ground beef during storage. Furthermore, the addition of rosemary oleoresin (RO), a natural antioxidant, to ground beef has been shown to increase shelf life and is commonly used in modified-atmosphere packaged (MAP) ground beef. This study evaluated ...
Rodrigues Nuno - - 2012
Lipids oxidation is one of the main factors leading to quality losses in foods. Its prevention or delay could be obtained by the addition of antioxidants. In this sense the present work intend to monitor the protective effects of Lavandula latifolia essential oil during soybean oil microwave heating. To achieve ...
Koo Ok-Kyung - - 2012
Contamination by Listeria monocytogenes has been a constant public health threat for the ready-to-eat (RTE) meat industry due to the potential for high mortalities from listeriosis. Lactic acid bacteria (LAB) have shown protective action against various pathogenic bacteria. The aim of this study was to evaluate the antilisterial activity of ...
Kehl Tobias - - 2012
It is commonly assumed that holometabolic insects such as Lepidoptera rely primarily on larval storage reserves for reproduction. Recent studies though have documented a prominent role of adult-derived carbohydrates for butterfly reproduction. Moreover, a few studies have shown that adult butterflies may also benefit from adult-derived amino acids, at least ...
Matczuk M - - 2012
Bronopol (2-bromo-2-nitropropane-1,3-diol) is used as preservative in cosmetic industry. Its main role in commercial products consists in protection of the cosmetic composition stability by inhibiting the development of microorganisms. Unfortunately, preservatives can also undergo the degradation processes. The aim of examinations was to prove that bronopol decomposes in aqueous solutions ...
Babu N Jagadeesh - - 2012
The antitumor prodrug temozolomide (TMZ) decomposes in aqueous medium of pH≥7 but is relatively stable under acidic conditions. Pure TMZ is obtained as a white powder but turns pink and then brown, which is indicative of chemical degradation. Pharmaceutical cocrystals of TMZ were engineered with safe coformers such as oxalic ...
Mulas Maurizio - - 2012
BACKGROUND: The effect of maturation and senescence on the chemical composition of two myrtle cultivars was studied in mature, overripe and cold-stored fruits in order to find the most appropriate harvesting period and best storage technology for industrial purposes. RESULTS: After cold storage at 10 °C for 15 days, berry ...
Sathishkumar Palanivel - - 2012
Nanobiocatalysis has received growing attention for use in commercial applications. We investigated the efficiency, stability, and reusability of laccase-poly(lactic-co-glycolic acid) (PLGA) nanofiber for diclofenac transformation. NH stretching vibrations (3400-3500cm(-1) and 1560cm(-1)) in FT-IR spectra confirmed immobilization of laccase on PLGA nanofibers. The relative activity of immobilized laccase was 82% that ...
Garcia Estefânia Fernandes - - 2012
The effects of the addition of different strains of lactic acid bacteria on different quality parameters of a Brazilian goat semi-hard cheese (coalho) were assessed during 7 days of storage (10°C) as follows: Control, Lactobacillus lactis subsp. lactis and L. lactis subsp. cremoris (standard); C2, L. acidophilus; C3, L. paracasei; ...
Wang Meng - - 2012
The effect of harvest date on nutritional compounds and antioxidant activity (AOC) in avocado (Persea americana Mill. cv Hass) fruit during storage was determined. The fruits were harvested at seven different dates and ripened at 25°C following 21 or 35days of cold storage. The results indicated that the phenolic and ...
Du Yunjian - - 2012
Browning decreases the commercial value of apple juice, and therefore colour preservation during processing and storage is the main objective of manufacturers. In this study, the efficacy of phytic acid as a browning inhibitor for use on apple juice was investigated. Browning of apple juice treated with phytic acid was ...
Arif Sara - - 2012
Four treatments (roasting, germination, autoclaving and an application of 0.5% EDTA+0.5% sodium hydroxide) were used to reduce the beany flavour of soya beans to produce a soy-based beverage. While germination significantly increased the protein level as compared to the other treatments, the maximum reduction of the beany flavour was achieved ...
Chiavaro Emma - - 2012
Phytochemicals (carotenoids, phenolic compounds and ascorbic acid) and antioxidant capacity (measured by TEAC, FRAP and TRAP assays) were evaluated on carrots and Brussels sprouts sous vide processed and then stored refrigerated for 1, 5 and 10 days and compared with the corresponding raw and oven steamed products. Data showed that ...
Du Yan-Jun - - 2012
Remediation of contaminated lands in China urban areas is of great concern. Degradation of construction facilities caused by acid rain is a serious environmental pollution issue in China. This paper presents an investigation of the effects of acid rain on leaching and hydraulic properties of cement-based solidified/stabilized lead contaminated soil. ...
Sharma Shikha - - 2012
Present study concerns modulating the electron transfer properties of gold nanoparticles through amino acid induced coupling among them. In addition to conductivity, the amino functionalization of the nanoparticles results in enhanced activity and operational stability of the biosensor fabricated using the same. Nanoparticles synthesized using amino acid as reducing agent ...
Wu Dongshuang - - 2012
Aiming at investigating the effect of structure on electrocatalytic properties, Pd(50)Ru(50) nanoparticles (NPs) with three different structures were carefully designed in a one-pot polyol process for application in formic acid electrooxidation. The three structures are: (1) single-phase PdRu nanodendrites (denoted as PR-1), (2) a mixed-phase mixture of PdRu nanodendrites and ...
Wang Shuang-Yin - - 2012
Explaining why type I collagens are preferentially preserved in the geological time scale remains a challenge. Several pieces of evidence indicate that its rich content in the bone and its unique, stable structure played key roles in its preservation. By considering the distinct thermal stability of amino acids, we reveal ...
Wanangkarn Amornrat - - 2012
Freshly-manufactured mum sausages were assigned to two processing methods (process I: stored at ∼30°C for 14days; process II: stored at ∼30°C for three days, vacuum-packaged, and stored at 4°C until day 28). Physicochemical, microbial, textural, and sensory properties of samples were analysed. The results showed that dehydration was more intense ...
Wang Xiu-Hua - - 2012
Four types of doxorubicin (DOX)-loaded polymeric micelles based on hydrophobically-modified sulfated chitosan (SCTS) were prepared. The hydrophobic group was composed of glycyrrhetinic acid (GA), cholic acid, stearic acid (SA) or lauric aldehyde. DOX encapsulation depended on several parameters, including the degree of substitution of the sulfate group and the hydrophobic ...
Cui Wei - - 2012
Folic acid receptors (FR) are usually over expressed in many cancer cells and considered as potential targeted therapy agent. Generation five polyamido amine (PAMAM) dendrimer folic acid conjugate was synthesesed and radiolabelled with 188Re, furthermore the in vitro/in vivo stability was evaluated accordingly. The labeling yield of the conjugate G5-FA-DTPA-188Re ...
Pabel Jörg - - 2012
A series of GABA uptake inhibitors related to (S)-1-{2-[tris(4-methoxyphenyl)methoxy]ethyl}piperidine-3-carboxylic acid [(S)-SNAP-5114], the most potent mGAT4 inhibitor known so far, were synthesized and biologically evaluated for their inhibitory potency at the four GABA uptake transporters mGAT1-4 stably expressed in HEK-293 cell lines. New analogues were developed with potencies that are similar ...
Linares M B - - 2012
This study examines the nutritional composition, fatty acid profile and sensory properties of two types of lamb burgers from the Spanish Manchego breed (formula 1 = L: completely from leg lamb meat; formula 2 = LNB with 2/3 leg and 1/3 neck and breast meat). A significant effect of the formulation type was found ...
Rijal Binod - - 2012
Switchgrass was pelleted to evaluate the effect of densification on acidic and alkaline pretreatment efficacy. Bulk density and durability of pellets were 724kg/m(3) and 95%, respectively. Ground switchgrass (D(90)=21.7mm) was further ground to a fine power (D(90)=0.5mm) in the pellet mill prior to densification. This grinding increased enzymatic hydrolyzate glucose ...
Duranti Andrea - - 2012
The ß-lactone ring of N-(2-oxo-3-oxetanyl)amides, a class of N-acylethanolamine acid amidase (NAAA) inhibitors endowed with anti-inflammatory properties, is responsible for both NAAA inhibition and low compound stability. Here, we investigated the structure-activity and structure-property relationships for a set of known and new ß-lactone derivatives, focusing on the new class of ...
Scorei Romulus - - 2012
Boron is probably a prebiotic element with special importance in the so-called "sugars world". Boron is not present on Earth in its elemental form. It is found only in compounds, e.g., borax, boric acid, kernite, ulexite, colemanite and other borates. Volcanic spring waters sometimes contain boron-based acids (e.g., boric, metaboric, ...
Turan Dilek - - 2012
Human milk fat (HMF) analogue containing docosahexaenoic acid (DHA) and arachidonic acid (ARA) at sn-1,3 positions and palmitic acid (PA) at sn-2 position was produced. Novozym® 435 lipase was used to produce palmitic acid-enriched hazelnut oil (EHO). EHO was then used to produce the final structured lipid (SL) through interesterification ...
Luciano G - - 2012
Over 72days, 33 lambs were fed: concentrates in stall (S), grass at pasture for 8hours (8h), or grass at pasture for 4hours in the afternoon (4h-PM). The 4h-PM treatment did not affect the carcass yield compared to the 8h treatment. Meat colour development after blooming was unaffected by the treatments. ...
Takemura Miho - - 2012
The liverwort Marchantia polymorpha L. synthesizes various long-chain polyunsaturated fatty acids including arachidonic acid and eicosapentaenoic acid, neither of which is produced by higher plants. Here we report the effects of temperature on long-chain polyunsaturated fatty acid accumulation in the liverwort. The accumulation of ω-3 polyunsaturated fatty acids increased significantly ...
Feng Liyun - - 2012
Superparamagnetic ascorbic acid-coated Fe(3)O(4) nanoparticles with a high specific surface area were successfully synthesized via an environmentally friendly hydrothermal route in the absence of any templates. The as-synthesized ascorbic acid-coated Fe(3)O(4) nanoparticles have a diameter of less than 10 nm, thus leading to a high specific surface area of about ...
Schwarzenberger M - - 2012
Extraction methods of fresh plants into aqueous-fermented extracts according to German Homoeopathic Pharmacopoeia (HAB), regulation nos. 33 and 34 were evaluated. In the course of production, the extraction is accompanied by fermentation and the resulting preparation is stored for at least 6 months until further processing. The present work aimed ...
Park K - - 2012
High-quality nano-sized Na(Co0.91Ni0.09)2O4 powders, i.e., 27 nm in average size, were synthesized by the solution combustion route. The magnitude of the electrical conductivity, the Seebeck coefficient, and the power factor for Na(Co0.91Ni0.09)2O4 depended strongly on the fuel used and followed the order of aspartic acid > glutamic acid > alanine ...
Sridhar F K - - 2012
Alkaptonuria is a rare tyrosine metabolic disorder. A deficiency of homogentisic acid oxidase leads to accumulation of homogentisic acid in the body. Dark-colored urine, cutaneous pigmentations and musculoskeletal deformities are characteristic features. Storage and voiding lower urinary tract symptoms due to prostatic calculi is a rare presentation.
Mullins Elwood A EA Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907, - - 2012
Bacterial formyl-CoA:oxalate CoA-transferase (FCOCT) and oxalyl-CoA decarboxylase work in tandem to perform a proton-consuming decarboxylation that has been suggested to have a role in generalized acid resistance. FCOCT is the product of uctB in the acidophilic acetic acid bacterium Acetobacter aceti. As expected for an acid-resistance factor, UctB remains folded ...
Ivy R A - - 2012
Survival of the food-borne pathogen Listeria monocytogenes in acidic environments (e.g., in the human stomach) is vital to its transmission. Refrigerated, ready-to-eat foods have been sources of listeriosis outbreaks. The purpose of this study was to determine whether growth at a low temperature (i.e., 7°C) affects L. monocytogenes survival or ...
Frahm Grant - - 2012
Previous studies have demonstrated that liposome - protein interactions can result in changes to the thermal stability of the protein. We utilized far U/V circular dichroism spectropolarimetry and fluorescence spectroscopy to investigate the interaction of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) liposomes with two recombinant human serum albumins (rHSA). We demonstrate that rHSA expressed ...
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