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- Author:
- Mar Cavia, María del; Fernández-Muiño, Miguel A.; Francisco Huidobro, José; Teresa Sancho, María
- Source:
- International journal of food science & technology 2008 v.43 no.11 pp. 1929-1934
- ISSN:
- 0950-5423
- Subject:
- acid value; acidity; ambient temperature; analysis of variance; climate; honey; pH; quality control
- Abstract:
- ... Stability of food is of particular interest, as we should know the period for which a given food maintains its original quality. Acidity is a very important parameter as regards honey quality control. In this study we analysed a possible 'best before period once opened', regarding the evolution of acidity in honey throughout 30 months in samples from regions with oceanic climates. The study was ca ...
- DOI:
- 10.1111/j.1365-2621.2008.01795.x
- https://doi.org/10.1111/j.1365-2621.2008.01795.x
- Author:
- Ziosi, V.; Noferini, M.; Fiori, G.; Tadiello, A.; Trainotti, L.; Casadoro, G.; Costa, G.
- Source:
- Postharvest biology and technology 2008 v.49 no.3 pp. 319-329
- ISSN:
- 0925-5214
- Subject:
- reference standards; postharvest physiology; spectroscopy; ripening; peaches; Prunus persica; harvest date; shelf life; absorbance; ethylene production; nectarines; cultivars; firmness; acidity; fruit quality; fruit composition; chlorophyll
- Abstract:
- ... In peach fruit (Prunus persica L. Batsch), establishing the optimal harvest time is a crucial issue, since fruit shelf-life potential and quality are closely related to the ripening stage at harvest. In order to develop a non-destructive index for monitoring the progression of ripening, the difference in absorbance between two wavelengths near the chlorophyll-a absorption peak (670 and 720nm; inde ...
- DOI:
- 10.1016/j.postharvbio.2008.01.017
- https://doi.org/10.1016/j.postharvbio.2008.01.017
- Author:
- Abu, Gideon O.; Dike, Paschal O.
- Source:
- Bioresource technology 2008 v.99 no.11 pp. 4761-4767
- ISSN:
- 0960-8524
- Subject:
- Chromobacterium; Flavobacterium; Micrococcus; Pseudomonas; Serratia; Staphylococcus; acidity; aeration; bacteria; biodegradation; evaporation; gas chromatography; glass; hydrocarbons; models; pH; photooxidation; remediation; sediments; streams; temperature; volatilization; wetlands; Niger
- Abstract:
- ... Sediment sample from a previously impacted Ochani stream was recreated in four glass chambers (A-D) as microcosms. The aim was to model and compare natural attenuation processes to forced aeration for remediation of a crude oil-impacted ecosystem. The initial hydrocarbon concentration was 90,212mg/kg of sediment. After 60 days, the natural attenuation processes of photooxidation, evaporation, vola ...
- DOI:
- 10.1016/j.biortech.2007.09.063
- PubMed:
- 17988860
- https://doi.org/10.1016/j.biortech.2007.09.063
- Author:
- Masino, F.; Chinnici, F.; Bendini, A.; Montevecchi, G.; Antonelli, A.
- Source:
- Food chemistry 2008 v.106 no.1 pp. 90-95
- ISSN:
- 0308-8146
- Subject:
- chemical analysis; physical properties; qualitative analysis; traditional technology; vinegars; sensory properties; food composition; free radical scavengers; acetic acid; hydroxymethylfurfural; lactic acid; ash content; phenols; brix; acidity; Italy
- Abstract:
- ... Nineteen commercially available samples of aceto balsamico tradizionale (TBV, traditional balsamic vinegar) have been investigated, in order to study the relationships between their physical and chemical profiles and their sensory quality. Density, acidity, total phenols, furanic compounds, sugars, carboxylic acids and ABTS·+ radical scavenging assay were measured. Sugars, density and dry matter p ...
- DOI:
- 10.1016/j.foodchem.2007.05.069
- https://doi.org/10.1016/j.foodchem.2007.05.069
- Author:
- Boonman, Narumon; Wiyakrutta, Suthep; Sriubolmas, Nongluksna; Dharmkrong-at Chusattayanond, Araya
- Source:
- Parasitology research 2008 v.103 no.5 pp. 1083-1090
- ISSN:
- 0932-0113
- Subject:
- Acanthamoeba; Fusarium; Thunbergia; acidity; acridine orange; branches; cell membranes; chromatography; endophytes; forests; fractionation; medicinal plants; metabolites; methanol; scanning electron microscopy; sucrose; trophozoites; vacuoles; yeasts; Thailand
- Abstract:
- ... A fungal endophyte identified as Fusarium sp. Tlau3 was isolated from fresh twig of Thunbergia laurifolia Lindl., a Thai medicinal plant collected from the forest of Chiang Mai Province, Northern Thailand. The fungus was grown on a medium containing yeast extracts and sucrose. The fungal metabolites were isolated from the culture broth by dichloromethane extraction, isooctane/methanol then n-butan ...
- DOI:
- 10.1007/s00436-008-1096-z
- PubMed:
- 18633646
- https://doi.org/10.1007/s00436-008-1096-z
- Author:
- V. Vajda; I. Maskaľová; A. Tesfaye
- Source:
- Czech Journal of Animal Science v.52 no.4 pp. 96-102
- ISSN:
- 1212-1819
- Subject:
- abomasum; acidified milk; acidity; acidosis; albumins; bicarbonates; blood; blood pH; carbon dioxide; casein; formic acid; homeostasis; liquids; milk replacer; oxygen partial pressure
- Abstract:
- ... Experiments were conducted on calves divided into three groups, 6 animals in each, to determine the influence of the intake of non-acidified and acidified milk replacer on the level of acid-base homeostasis in venous blood. The milk replacer was supplied at a dose of 700 g dry matter in 8 l of the liquid in two feedings. The milk replacer was acidified by adding formic acid to ensure the concentra ...
- DOI:
- 10.17221/2271-cjas
- https://doi.org/10.17221/2271-cjas
- Author:
- Ehlen, Leslie A.; Marshall, Teresa A.; Qian, Fang; Wefel, James S.; Warren, John J.
- Source:
- Nutrition research 2008 v.28 no.5 pp. 299-303
- ISSN:
- 0271-5317
- Subject:
- potassium hydroxide; lesions (animal); tooth enamel; titratable acidity; pH; soft drinks; dental caries; fruit juices
- Abstract:
- ... Acidic beverages are thought to increase the potential for dental erosion. We report pH and titratable acidities (ie, quantity of base required to bring a solution to neutral pH) of beverages popular in the United States and lesion depths in enamel and root surfaces after beverage exposure, and we describe associations among pH, titratable acidity, and both enamel and root erosive lesion depths. T ...
- DOI:
- 10.1016/j.nutres.2008.03.001
- PubMed:
- 19083423
- PubMed Central:
- PMC2516950
- https://doi.org/10.1016/j.nutres.2008.03.001
- Author:
- Bower, C.K.; Hietala, K.A.
- Source:
- Journal of aquatic food product technology 2008 v.17 no.4 pp. 459-477
- ISSN:
- 1049-8850
- Subject:
- Oncorhynchus gorbuscha; salmon; fish waste; animal byproducts; animal organs; head; lactic fermentation; lactic acid bacteria; silage making; fish silage; lipid composition; protein composition; acidification; acid treatment; formic acid; pH; acidity
- Abstract:
- ... High-quality by-products from fish processing are sometimes discarded unless fishmeal plants are located nearby. Other preservation methods, such as acidification, are less commonly used to inhibit spoilage. In this study, individual salmon by-products (heads, viscera, and a mixture) were stabilized through fermentation by lactic acid bacteria and through ensilage by direct acidification. Lipid an ...
- Handle:
- 10113/22904
- DOI:
- 10.1080/10498850802380572
- https://doi.org/10.1080/10498850802380572
- Author:
- Almeida, K.E.; Tamime, A.Y.; Oliveira, M.N.
- Source:
- Lebensmittel-Wissenschaft + Technologie 2008 v.41 no.2 pp. 311-316
- ISSN:
- 0023-6438
- Subject:
- cheese milk; Lactobacillus delbrueckii subsp. bulgaricus; fermentation; acidification; acidity; coculture; lactic acid bacteria; cheese ripening; Bifidobacterium animalis; waste utilization; cheese whey; probiotics; pH; kinetics; Lactobacillus rhamnosus; Lactobacillus acidophilus; Streptococcus thermophilus; cheese starters
- DOI:
- 10.1016/j.lwt.2007.02.021
- https://doi.org/10.1016/j.lwt.2007.02.021
- Author:
- Shimizu, Masao; Kudo, Naoto; Nakajima, Yoshinobu; Matsuo, Noboru; Katsuragi, Yoshihisa; Tokimitsu, Ichiro; Barceló, Isabel; Mateu, Catalina; Barceló, Francisca
- Source:
- journal of the American Oil Chemists' Society 2008 v.85 no.11 pp. 1051-1056
- ISSN:
- 0003-021X
- Subject:
- Olea europaea; olives; genetic variation; olive oil; lipid composition; acidity; diacylglycerols; monoacylglycerols; triacylglycerols; free fatty acids; Spain
- Abstract:
- ... In this study, the quality characteristics, i.e., the acidity and acylglycerols, of currently produced Mallorcan oil was analyzed by titration and gas-chromatographic technique, respectively, in approximately 400 samples of monovarietal olive oil made from three genetic varieties (Arbequina, Empeltre, and Picual) on the island of Mallorca during the 2003/2004 and 2005/2006 seasons, and the differe ...
- DOI:
- 10.1007/s11746-008-1292-0
- https://doi.org/10.1007/s11746-008-1292-0
11. Acidity enhances the formation of a persistent ozonide at aqueous ascorbate/ozone gas interfaces
- Author:
- Enami, Shinichi; Hoffmann, M.R.; Colussi, A.J.
- Source:
- Proceedings of the National Academy of Sciences of the United States of America 2008 v.105 no.21 pp. 7365-7369
- ISSN:
- 0027-8424
- Subject:
- acidity; adverse effects; ascorbic acid; cytotoxicity; dehydroascorbic acid; droplets; epidemiological studies; epithelium; free radicals; ozone; ozonolysis; pH; particulates; tandem mass spectrometry
- Abstract:
- ... The pulmonary epithelium, like most aerial biosurfaces, is naturally protected against atmospheric ozone (O₃) by fluid films that contain ascorbic acid (AH₂) and related scavengers. This mechanism of protection will fail, however, if specific copollutants redirect AH₂ and O₃(g) to produce species that can transduce oxidative damage to underlying tissues. Here, the possibility that the synergistic ...
- DOI:
- 10.1073/pnas.0710791105
- PubMed:
- 18487455
- PubMed Central:
- PMC2386772
- https://doi.org/10.1073/pnas.0710791105
- Author:
- WALSENG, BJØRN; YAN, NORMAN D.; PAWSON, TREVOR W.; SKARPAAS, OLAV
- Source:
- Freshwater biology 2008 v.53 no.2 pp. 290-303
- ISSN:
- 0046-5070
- Subject:
- Canadian Shield; Eriocaulon aquaticum; acidity; correspondence analysis; emergence traps; fauna; habitats; lakes; littoral zone; macrophytes; pH; sediments
- Abstract:
- ... 1. Emergence traps were set overnight on the sediment surface to sample the littoral microcrustaceans of 22 Canadian Shield lakes that ranged in pH from 4.56 to 6.92. Traps were randomly allocated in quintuplicate in both wave-washed sandy habitats where pipewort (Eriocaulon septangulare) was the dominant macrophyte (termed pipewort habitats), and more protected habitats dominated by floating-leav ...
- DOI:
- 10.1111/j.1365-2427.2007.01892.x
- https://doi.org/10.1111/j.1365-2427.2007.01892.x
- Author:
- Supavititpatana, P.; Wirjantoro, T.I.; Apichartsrangkoon, A.; Raviyan, P.
- Source:
- Food chemistry 2008 v.106 no.1 pp. 211-216
- ISSN:
- 0308-8146
- Subject:
- gelatin; gelation; corn; milk; yogurt; gel strength; acidity; texture; viscoelasticity; storage modulus; novel foods
- Abstract:
- ... Corn-milk yogurt set by a combination of sodium caseinate plus gelatin at concentrations of 0, 0.2, 0.4 and 0.6% (w/v) were studied. The quality of the gels was determined by measurement of acidity, syneresis, texture profile analysis, viscoelasticity, structure scanning electron microscope and microbiology. Texture profile analysis (TPA) showed that increasing levels of gelatin increased hardness ...
- DOI:
- 10.1016/j.foodchem.2007.05.058
- https://doi.org/10.1016/j.foodchem.2007.05.058
- Author:
- Villaverde, Jaime; Kah, Melanie; Brown, Colin D.
- Source:
- Pest management science 2008 v.64 no.7 pp. 703-710
- ISSN:
- 1526-498X
- Subject:
- adsorption; degradation; acidity; herbicides; soil analysis; soil pollution; environmental quality; organic matter; clay soils; batch systems; Spain
- Abstract:
- ... BACKGROUND: Pesticide degradation and adsorption in soils are key processes determining whether pesticide use will have any impact on environmental quality. Pesticide degradation in soil generally results in a reduction in toxicity, but some pesticides have breakdown products that are more toxic than the parent compound. Adsorption to soil particles ensures that herbicide is retained in the place ...
- DOI:
- 10.1002/ps.1545
- PubMed:
- 18283714
- https://doi.org/10.1002/ps.1545
- Author:
- Bevilacqua, A.; Sinigaglia, M.; Corbo, M.R.
- Source:
- International journal of food microbiology 2008 v.125 no.2 pp. 103-110
- ISSN:
- 0168-1605
- Subject:
- food spoilage; acidity; essential oils; bacterial spores; sodium benzoate; heat treatment; chlorine dioxide; heat tolerance; orange juice; food preservation; surfactants; apple juice; culture media; food preservatives; antibacterial properties; lysozyme; spore-forming bacteria; food contamination; natural additives; food pathogens; Alicyclobacillus acidoterrestris; nisin
- Abstract:
- ... For a long period the thermal processing has been considered as the only way to reduce the initial spore number of Alicyclobacillus acidoterrestris and prevent the spoilage of acidic beverage. New methods, however, were proposed by the literature to control spore germination both in laboratory media and in real systems. After a brief introduction on the impact of A. acidoterrestris in food microbi ...
- DOI:
- 10.1016/j.ijfoodmicro.2008.02.030
- PubMed:
- 18400325
- https://doi.org/10.1016/j.ijfoodmicro.2008.02.030
- Author:
- Kuleasan, Sukran; Tekin, Aziz
- Source:
- European journal of lipid science and technology 2008 v.110 no.3 pp. 261-265
- ISSN:
- 1438-7697
- Subject:
- acidity; adsorbents; ambient temperature; bentonite; centrifugation; color; diatomaceous earth; drying; energy; environmental law; fatty acid composition; free fatty acids; lipid content; neutralization; soaps; sodium hydroxide; soybean oil; washing; waste disposal
- Abstract:
- ... The effect of sodium hydroxide in neutralization was increased by using various adsorbents. NaOH in various concentrations was attached to the particles of Kieselguhr, Celite and Bentonite. The neutralization reaction was performed at ambient temperature, and different reaction times were applied. The soap formed after reaction was removed by centrifugation; thus, washing and drying steps were omi ...
- DOI:
- 10.1002/ejlt.200700156
- https://doi.org/10.1002/ejlt.200700156
- Author:
- Hernández Suárez, Marcos; Rodríguez Rodríguez, Elena; Díaz Romero, Carlos
- Source:
- European food research & technology 2008 v.226 no.3 pp. 423-435
- ISSN:
- 1438-2377
- Subject:
- acidity; ambient temperature; ascorbic acid; brix; cultivars; discriminant analysis; ethanol; food research; high performance liquid chromatography; organic acids and salts; pH; tomatoes
- Abstract:
- ... The determination of organic acids in tomato samples was optimized using the HPLC method with on-line photodiode array detection, previous to extraction with 80% ethanol at room temperature and clean-up in Accell Plus QMA cartridge. The organic acids (oxalic, pyruvic, malic, citric, fumaric and ascorbic), Brix degree, acidity and pH were determined in five tomato cultivars (Dorothy, Boludo, Domini ...
- DOI:
- 10.1007/s00217-006-0553-0
- https://doi.org/10.1007/s00217-006-0553-0
- Author:
- Afkari, A.H.; Esmailpour, B.
- Source:
- Journal of food, agriculture & environment 2008 v.6 no.2 pp. 276-279
- ISSN:
- 1459-0255
- Subject:
- viscoelasticity; deformation; acidity; apples; texture; fruit quality; maturity stage; firmness; Malus; measurement
- Abstract:
- ... Today, firmness is a simple method issued for determination of some physiological characteristics of apple. However, so far no standard method has been introduced to determine the texture firmness. Therefore, in this investigation the visco-elastic hypothesis of apple texture was used for firmness determination. Accordingly, after designation, fabrication and preparation a creep loading apparatus, ...
- Author:
- Benabid, H.; Naamoune, H.; Nocairi, H.; Rutledge, D.N.
- Source:
- Journal of food, agriculture & environment 2008 v.6 no.2 pp. 43-51
- ISSN:
- 1459-0255
- Subject:
- olive oil; Olea europaea; food quality; geographical variation; geographical distribution; principal component analysis; discriminant analysis; spectral analysis; chemical composition; iodine value; saponification number; peroxide value; acidity; alpha-tocopherol; gamma-tocopherol; Algeria
- Abstract:
- ... The aim of this study was to determine whether the chemical characteristics of olive oils collected from five areas in Algeria (El Milia, Constantine, Tizi Ouzou, Setif and Skikda) could be used to discriminate their geographical origin. Little recent data is available concerning the composition of Algerian olive oils. These compositional parameters were statistically analysed using three chemomet ...
- Author:
- Kingsley, D.H.; Chen, H.
- Source:
- Journal of food protection 2008 v.71 no.8 pp. 1598-1603
- ISSN:
- 0362-028X
- Subject:
- water content; food matrix; sodium chloride; sucrose; whey protein; salt concentration; protein concentrates; pH; Feline calicivirus; food pathogens; viral diseases of animals and humans; high pressure treatment; stress tolerance; inactivation; water activity; acidity; ionic strength; antiviral properties; solutes
- Abstract:
- ... The individual effects of pH (pH 3 to 8), NaCl (0 to 21%), sucrose (0 to 70%), and whey protein (0 to 2%) on pressure resistance of feline calicivirus (FCV) in Dulbecco's modified Eagle medium with 10% fetal bovine serum were determined. At pH 3 through 8, the virus was more resistant to pressure at a pH of < or = 5.2. For FCV samples with sucrose (up to 40%) or NaCl (up to 12%), the amount of FCV ...
- Handle:
- 10113/20030
- PubMed:
- 18724753
- Author:
- Percent, Sascha F.; Frischer, Marc E.; Vescio, Paul A.; Duffy, Ellen B.; Milano, Vincenzo; McLellan, Maggie; Stevens, Brett M.; Boylen, Charles W.; Nierzwicki-Bauer, Sandra A.
- Source:
- Applied and environmental microbiology 2008 v.74 no.6 pp. 1856-1868
- ISSN:
- 0099-2240
- Subject:
- acidity; ribosomal RNA; carbon; beta-Proteobacteria; correlation; animals; lakes; clones; alpha-Proteobacteria; bacterial communities; Actinobacteria; trophic relationships; DNA libraries; parks; community structure; principal component analysis; species diversity; aquatic communities; acidification; bacterioplankton; aluminum; nucleotide sequences; pH; New York
- Abstract:
- ... Although it is recognized that acidification of freshwater systems results in decreased overall species richness of plants and animals, little is known about the response of aquatic microbial communities to acidification. In this study we examined bacterioplankton community diversity and structure in 18 lakes located in the Adirondack Park (in the state of New York in the United States) that were ...
- DOI:
- 10.1128/AEM.01719-07
- PubMed:
- 18245245
- PubMed Central:
- PMC2268290
- https://doi.org/10.1128/AEM.01719-07
- Author:
- Awika, J.M.
- Source:
- Food research international 2008 v.41 no.5 pp. 532-538
- ISSN:
- 0963-9969
- Subject:
- anthocyanins; acidity; ferulic acid; tannins; color; rutin; stabilizers; food additives; chemical structure
- Abstract:
- ... Anthocyanin stability and color intensity are generally improved in the presence of copigments in moderately acidic environments. The 3-deoxyanthocyanins on the other hand are fairly stable to color loss due to change in pH. It is unknown, therefore, how they behave in the presence of copigments. We studied the effects of common phenolic copigments, tannic, ferulic, and O-coumaric acids, and rutin ...
- DOI:
- 10.1016/j.foodres.2008.03.002
- https://doi.org/10.1016/j.foodres.2008.03.002
- Author:
- Ehsani-Moghaddam, B.; Khanizadeh, S.; Sullivan, J.A.
- Source:
- Canadian journal of plant science 2008 v.88 no.1 pp. 175-178
- ISSN:
- 0008-4220
- Subject:
- germplasm; brix; raspberries; cultivars; acidity; hydrophilic interactions; total soluble solids; genetic variation; Rubus idaeus; genotype; hydrophobicity; chemical constituents of plants; antioxidant activity
- DOI:
- 10.4141/P06-124
- https://doi.org/10.4141/P06-124
- Author:
- Ercolano, M. R.; Carli, P.; Soria, A.; Cascone, A.; Fogliano, V.; Frusciante, L.; Barone, A.
- Source:
- Euphytica 2008 v.164 no.2 pp. 571-582
- ISSN:
- 0014-2336
- Subject:
- tomatoes; acidity; amplified fragment length polymorphism; sourness; heirloom varieties; ecotypes; carbohydrate composition; amino acid composition; food composition; citric acid; odors; sweetness; genetic markers; Solanum lycopersicum var. lycopersicum; Italy
- Abstract:
- ... Fruit flavour of traditional tomato ecotypes differs from that of modern varieties, the latter being often blamed for lack of flavour. To respond to consumer complaints breeders should know the range of genetic variability available in tomato resources, including local ecotypes, for improving flavour. For this purpose, multitrait characterization, including biochemical, sensorial and molecular ana ...
- DOI:
- 10.1007/s10681-008-9768-4
- https://doi.org/10.1007/s10681-008-9768-4
- Author:
- Rekha, C. R.; Vijayalakshmi, G.
- Source:
- Applied biochemistry and biotechnology 2008 v.151 no.2-3 pp. 452-463
- ISSN:
- 0273-2289
- Subject:
- acidity; polyphenols; genistin; fermentation; daidzin; fermented foods; lactic acid bacteria; Saccharomyces; nutritive value; free radical scavengers; autoxidation; probiotics; pH; genistein; hydrolysis; daidzein; soymilk; protein content; antioxidant activity
- Abstract:
- ... Soymilk was fermented with five isolates of probiotic lactic acid bacteria and in combination with probiotic yeast Saccharomyces boulardii. Nutritional profile like fat, protein, ash, pH, acidity, polyphenol, and protein hydrolysis were analyzed. Polyphenol content decreased from 265.88 to 119 μg/ml with different cultures. Protein hydrolysis ranged from 2.46 to 2.83 mmol l⁻¹ with different cultur ...
- DOI:
- 10.1007/s12010-008-8213-4
- PubMed:
- 18607548
- https://doi.org/10.1007/s12010-008-8213-4
- Author:
- Ahmady-Asbchin, Salman; Andrès, Yves; Gérente, Claire; Cloirec, Pierre Le
- Source:
- Bioresource technology 2008 v.99 no.14 pp. 6150-6155
- ISSN:
- 0960-8524
- Subject:
- Fucus serratus; acidity; adsorption; aqueous solutions; biomass; calcium; copper; equations; heavy metals; ion exchange; ions; magnesium; pH; protons; qualitative analysis; tap water; titration
- Abstract:
- ... In this work, the brown alga Fucus serratus (FS) used as a low cost sorbent has been studied for the biosorption of copper(II) ions in batch reactors. Firstly, the characterization of the surface functional groups was performed with two methods: a qualitatively analysis with the study of FT-IR spectrum and a quantitatively determination with potentiometric titrations. From this latter, a total pro ...
- DOI:
- 10.1016/j.biortech.2007.12.040
- PubMed:
- 18276132
- https://doi.org/10.1016/j.biortech.2007.12.040
- Author:
- Qi, B.C.; Aldrich, C.
- Source:
- Bioresource technology 2008 v.99 no.13 pp. 5595-5601
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; acidity; adsorption; aqueous solutions; atomic force microscopy; chemical structure; heavy metals; ion exchange; metal ions; pH; tobacco
- Abstract:
- ... A typical lignocellulosic agricultural residue, namely tobacco dust, was investigated for its heavy metal binding efficiency. The tobacco dust exhibited a strong capacity for heavy metals, such as Pb(II), Cu(II), Cd(II), Zn(II) and Ni(II), with respective equilibrium loadings of 39.6, 36.0, 29.6, 25.1 and 24.5mg of metal per g of sorbent. Moreover, the heavy metals loaded onto the biosorbent could ...
- DOI:
- 10.1016/j.biortech.2007.10.042
- https://doi.org/10.1016/j.biortech.2007.10.042
- Author:
- Campos, K.; Domingo, R.; Vincent, T.; Ruiz, M.; Sastre, A.M.; Guibal, E.
- Source:
- Water research 2008 v.42 no.14 pp. 4019-4031
- ISSN:
- 0043-1354
- Subject:
- acidity; biopolymers; alginates; gelatin; reaction kinetics; porosity; diffusivity; hydrochloric acid; diffusion; mathematical models; sorption; equations; encapsulation; adsorbents; ion exchange resins; bismuth; ions; chlorides; particle size; wastewater; desorption
- DOI:
- 10.1016/j.watres.2008.07.024
- PubMed:
- 18701126
- https://doi.org/10.1016/j.watres.2008.07.024
- Author:
- Pratelli, A.
- Source:
- Veterinary journal 2008 v.177 no.1 pp. 71-79
- ISSN:
- 1090-0233
- Subject:
- acidity; viral enteritis; ultraviolet radiation; drug therapy; dog diseases; disease prevention; cell culture; Canine coronavirus; inactivation; puppies; glutaraldehyde; pH; in vitro studies; heat treatment; irradiation; virus replication; formaldehyde
- Abstract:
- ... Canine coronavirus (CCoV) is responsible for mild or moderate enteritis in puppies. The virus is highly contagious and avoiding contact with infected dogs and their excretions is the only way to ensure disease prevention. Since no studies have yet focused on the sensitivity of CCoV to chemical biocides the present investigation examined the efficiency of physical and chemical methods of viral inac ...
- DOI:
- 10.1016/j.tvjl.2007.03.019
- PubMed:
- 17513145
- https://doi.org/10.1016/j.tvjl.2007.03.019
- Author:
- Kanekanian, A.D.; Williams, R.J.H.; Brownsell, V.L.; Andrews, A.T.
- Source:
- Food chemistry 2008 v.107 no.3 pp. 1015-1021
- ISSN:
- 0308-8146
- Subject:
- dental caries; teeth; chemical concentration; pH; casein; acidity; peptides; protective effect; hydroxyapatite; coatings
- Abstract:
- ... Casein-derived phosphopeptides (CPP) can protect teeth from acids produced by bacteria causing dental caries or directly from acidic foods and beverages causing dental erosion. Neither the CPP concentrations required for protection nor the effective pH range has been published and the protective mechanism is still open to debate. Using experimental protocols mimicking practical situations in which ...
- DOI:
- 10.1016/j.foodchem.2007.09.013
- https://doi.org/10.1016/j.foodchem.2007.09.013
- Author:
- S. B. Jennifer Kan; Ryosuke Matsubara; Florian Berthiol; Shū Kobayashi
- Source:
- Chemical communications 2008 v. no.47 pp. 6354-6356
- ISSN:
- 1364-548X
- Subject:
- Lewis bases; acidity; allylation; catalytic activity; palladium
- Abstract:
- ... A mild and efficient process for the direct-type catalytic allylation of sulfonylimidates has been developed; this reaction represents the first example of Brønsted base-catalysed, in situ generation and use of α-alkyl enolates in substitution reactions; the success of this methodology stems from the tunable α-proton acidity and nucleophilicity of sulfonylimidates, which could be harnessed in the ...
- DOI:
- 10.1039/b815845b
- https://doi.org/10.1039/b815845b
- Author:
- Els D’Hondt; Stijn Van de Vyver; Bert F. Sels; Pierre A. Jacobs
- Source:
- Chemical communications 2008 v. no.45 pp. 6011-6012
- ISSN:
- 1364-548X
- Subject:
- acidity; catalytic activity; chemical reactions; glycerol; hydrogen; zeolites
- Abstract:
- ... Conversion of glycerol into high yields of 1,2-propanediol in absence of added hydrogen is possible with Pt impregnated NaY zeolite characterized by extra-zeolitic metal particles combined with zeolite Brønsted acidity. ...
- DOI:
- 10.1039/b812886c
- https://doi.org/10.1039/b812886c
- Author:
- Ross, D.S.; Matschonat, G.; Skyllberg, U.
- Source:
- European journal of soil science 2008 v.59 no.6 pp. 1141-1159
- ISSN:
- 1351-0754
- Subject:
- acid soils; acidity; base saturation; cation exchange; cation exchange capacity; exchangeable aluminum; forest soils; minerals; nutrient retention; organic matter; organic soils; pH; salts; soil sampling; variable charge
- Abstract:
- ... The long-term sustainability of forest soils may be affected by the retention of exchangeable nutrient cations such as Ca²⁺ and the availability of potentially toxic cations such as Al³⁺. Many of our current concepts of cation exchange and base cation saturation are largely unchanged since the beginnings of soil chemistry over a century ago. Many of the same methods are still in use even though th ...
- DOI:
- 10.1111/j.1365-2389.2008.01069.x
- https://doi.org/10.1111/j.1365-2389.2008.01069.x
34. Cellulose swelling by protic solvents: which properties of the biopolymer and the solvent matter
- Author:
- El Seoud, Omar A.; Fidale, Ludmila C.; Ruiz, Naiara; D'Almeida, Maria Luiza O.; Frollini, Elisabete
- Source:
- Cellulose 2008 v.15 no.3 pp. 371-392
- ISSN:
- 0969-0239
- Subject:
- Eucalyptus; acidity; alcohols; biopolymers; cellulose; cotton; equations; solubility; solvents
- Abstract:
- ... The question posed in the title has been addressed by studying the swelling of celluloses at 20 °C by twenty protic solvents, including water; linear- and branched-chain aliphatic alcohols; unsaturated aliphatic alcohols, and alkoxyalcohols. The biopolymers investigated included microcrystalline cellulose, MC, native and never-dried mercerized cotton cellulose, cotton and M-cotton, and native and ...
- DOI:
- 10.1007/s10570-007-9189-x
- https://doi.org/10.1007/s10570-007-9189-x
- Author:
- Díaz-Mula, Huertas María; Zapata, Pedro Javier; Guillén, Fabián; Castillo, Salvador; Martínez-Romero, Domingo; Valero, Daniel; Serrano, María
- Source:
- Journal of the science of food and agriculture 2008 v.88 no.14 pp. 2499-2507
- ISSN:
- 0022-5142
- Subject:
- Prunus; plums; fruiting; ripening; chemical constituents of plants; fruit composition; cultivars; anthocyanins; carotenoids; polyphenols; antioxidants; antioxidant activity; color; acidity; firmness
- Abstract:
- ... BACKGROUND: There is no literature on changes in organoleptic, nutritive and functional properties during plum development and on-tree ripening. In this work a comparative study on the evolution of physical, chemical and nutritive parameters and bioactive compounds of eight plum cultivars (yellow and dark-purple) was performed.RESULTS: The main changes related to ripening (colour, total soluble so ...
- DOI:
- 10.1002/jsfa.3370
- https://doi.org/10.1002/jsfa.3370
- Author:
- Cocchi, M.; Consonni, R.; Durante, C.; Grandi, M.; Manzini, S.; Marchetti, A.; Sighinolfi, S.
- Source:
- Journal of agricultural and food chemistry 2008 v.56 no.15 pp. 6397-6407
- ISSN:
- 0021-8561
- Subject:
- acidity; high performance liquid chromatography; food composition; malic acid; heat treatment; density; cooking; refractive index; vinegars; glucose; tartaric acid; food quality; fructose; Vitis vinifera; cultivars; water content; furfural; food contamination; gas chromatography; grape must
- Abstract:
- ... Cooked must is the starting raw material in Aceto Balsamico Tradizionale di Modena (ABTM) production, and the cooking process is a crucial step to ensure quality and safety standards. In particular, the furfural content has to be strictly monitored. In this study, we followed, directly at the production plant, nine cooking processes, differing for grape type and process conditions in order to moni ...
- DOI:
- 10.1021/jf800353a
- PubMed:
- 18598041
- https://doi.org/10.1021/jf800353a
- Author:
- Ruiz-Méndez, M. Victoria; López-López, Antonio; Garrido-Fernández, Antonio
- Source:
- European journal of lipid science and technology 2008 v.110 no.6 pp. 537-546
- ISSN:
- 1438-7697
- Subject:
- acid value; acidity; beta-sitosterol; byproducts; chemometrics; cholesterol; fatty acid composition; food processing wastes; fruits; olive oil; olives; pomace; refining; trans fatty acids; vegetable oil
- Abstract:
- ... Table olive processing produces defective fruits and the conditioning operations give rise to solid by-products which are processed to obtain oil. In this study, the most relevant characteristics of crude oils extracted from table olive by-products were high average acidity values (4.5%, green olives; 8.1%, ripe olives), ECN42 values of 0.34 (green olives) and 0.10 (ripe olives), while 2-mono-palm ...
- DOI:
- 10.1002/ejlt.200700252
- https://doi.org/10.1002/ejlt.200700252
- Author:
- Garabal, J. Ignacio; Rodríguez-Alonso, Patricia; Centeno, Juan A.
- Source:
- Lebensmittel-Wissenschaft + Technologie 2008 v.41 no.8 pp. 1452-1458
- ISSN:
- 0023-6438
- Subject:
- acidity; raw milk; food composition; traditional foods; pasteurized milk; Pediococcus; interspecific variation; Lactococcus; cheese starters; food processing quality; Lactobacillus; strain differences; Enterococcus; proteolysis; flavor; lactic acid bacteria; geographical variation; cheeses; Leuconostoc; Spain
- DOI:
- 10.1016/j.lwt.2007.09.004
- https://doi.org/10.1016/j.lwt.2007.09.004
- Author:
- Lázaro, Elisabet; Ràfols, Clara; Rosés, Martí
- Source:
- Journal of chromatography 2008 v.1182 no.2 pp. 233-236
- ISSN:
- 0021-9673
- Subject:
- acidity; artificial membranes; chromatography; drugs; ionization; lithium; methanol; pH; silica; sodium
- Abstract:
- ... Residual silanol acidity and activity of one immobilized artificial membrane (IAM) column have been measured from the retention of LiNO₃ in the column with a methanol/buffer (1mM in Na⁺) (60:40, v/v) mobile phase buffered to different pH values. Just one type of silanol with p s s K a = 7.61 (near the pH limit recommended by the manufacturer) was found, although these silanols show large activity. ...
- DOI:
- 10.1016/j.chroma.2008.01.003
- https://doi.org/10.1016/j.chroma.2008.01.003
- Author:
- Hayaloglu, A.A.; Brechany, E.Y.; Deegan, K.C.; McSweeney, P.L.H.
- Source:
- Lebensmittel-Wissenschaft + Technologie 2008 v.41 no.7 pp. 1323-1334
- ISSN:
- 0023-6438
- Subject:
- water content; food analysis; food chemistry; volatile compounds; traditional foods; cheeses; cheese ripening; molds (fungi); acidity; protein content; proteolysis; Turkey (country)
- DOI:
- 10.1016/j.lwt.2007.08.020
- https://doi.org/10.1016/j.lwt.2007.08.020
- Author:
- Salve, P. R.; Maurya, A.; Wate, S. R.; Devotta, Sukumar
- Source:
- Bulletin of environmental contamination and toxicology 2008 v.80 no.3 pp. 242-246
- ISSN:
- 0007-4861
- Subject:
- neutralization; chemical composition; acidity; fractionation; monsoon season; cations; soil; hydrochloric acid; anions; pH; rain; seawater; alkalinity; sodium; ammonium nitrate; India
- Abstract:
- ... The present study investigated the chemical composition of rainwater at Kabir nagar, Nari, Nagpur, Maharashtra, India. The rainwater samples were collected on event basis during June-July-August-2006 and were analyzed for pH, major anions Cl, NO₃, SO₄) and cations (Ca, Mg, Na, K, NH4). The pH value varied from 6.0 to 7.3 (avg. 6.3 ± 0.3) indicating alkaline nature of rainwater. The pH of the rainw ...
- DOI:
- 10.1007/s00128-007-9353-x
- PubMed:
- 18196188
- https://doi.org/10.1007/s00128-007-9353-x
- Author:
- Kondyli, E.; Katsiari, M.C.; Voutsinas, L.P.
- Source:
- Food control 2008 v.19 no.3 pp. 301-307
- ISSN:
- 0956-7135
- Subject:
- cheesemaking; acidity; salting; ewe milk; odors; dry matter content; milk curds; sensory evaluation; texture; rennet; fresh cheeses; lactose; traditional technology; proteolysis; appearance (quality); water content; flavor; goat cheese; salt content; starter cultures; lipid content; acidification; nitrogen; ash content; protein content; goat milk; Greece
- DOI:
- 10.1016/j.foodcont.2007.04.007
- https://doi.org/10.1016/j.foodcont.2007.04.007
- Author:
- Blaser, Peter; Walthert, Lorenz; Zimmermann, Stephan; Graf Pannatier, Elisabeth; Luster, Jörg
- Source:
- Zeitschrift für Pflanzenernährung und Bodenkunde 2008 v.171 no.2 pp. 163-170
- ISSN:
- 1436-8730
- Subject:
- acid soils; acidification; acidity; base saturation; cations; forest soils; mineral soils; parents; soil acidification; soil formation; soil horizons; soil pH; soil profiles; soil sampling; Switzerland
- Abstract:
- ... Soil chemical parameters related to soil acidity were determined for 1450 soil samples taken from individual mineral soil horizons in 257 forest soils in Switzerland, 196 developed from carbonate-containing and 61 from carbonate-free parent material. The distribution of pH values and exchangeable base cations in corresponding pH ranges were related to the capacity and rate of buffer reactions in t ...
- DOI:
- 10.1002/jpln.200700008
- https://doi.org/10.1002/jpln.200700008
44. Climate and surface water acidity: development and application of a generalized predictive model
- Author:
- John F. Boyle
- Source:
- Holocene 2008 v.18 no.1 pp. 69-81
- ISSN:
- 0959-6836
- Subject:
- Bacillariophyceae; Holocene epoch; acidity; alkalinity; atmospheric precipitation; carbon dioxide; climate change; climatic factors; dissolved organic carbon; dust; evaporation; lakes; models; pH; paleoecology; runoff; surface water; temperature; watersheds
- Abstract:
- ... A simple generalized geochemical model is presented that predicts long-term mean lake water acidity from rock type, annual precipitation and temperature, aeolian dust supply and catchment to lake area ratio; all of which can be estimated from mapped data. The model provides a geochemical tool to aid palaeoenvironmental interpretation of diatom inferred lake pH records, and shows how the sensitivit ...
- DOI:
- 10.1177/0959683607085597
- https://doi.org/10.1177/0959683607085597
- Author:
- Boyen, F.; Haesebrouck, F.; Vanparys, A.; Volf, J.; Mahu, M.; Van Immerseel, F.; Rychlik, I.; Dewulf, J.; Ducatelle, R.; Pasmans, F.
- Source:
- Veterinary microbiology 2008 v.132 no.3-4 pp. 319-327
- ISSN:
- 0378-1135
- Subject:
- acidity; enteropathogens; epithelial cells; Salmonella Typhimurium; butyric acid; protective effect; medium chain fatty acids; swine diseases; gene expression; intestines; feed supplements; virulence; minimum inhibitory concentration; disease control; antibacterial properties; swine; bacterial colonization; food pathogens; salmonellosis; anti-infective agents; diet therapy
- Abstract:
- ... Salmonella Typhimurium infections in pigs are a major source of human foodborne salmonellosis. To reduce the number of infected pigs, acidification of feed or drinking water is a common practice. The aim of the present study was to determine whether some frequently used short- (SCFA) and medium-chain fatty acids (MCFA) are able to alter virulence gene expression and to decrease Salmonella Typhimur ...
- DOI:
- 10.1016/j.vetmic.2008.05.008
- PubMed:
- 18583068
- https://doi.org/10.1016/j.vetmic.2008.05.008
- Author:
- King, Ellena S.; Swiegers, Jan H.; Travis, Brooke; Francis, I. Leigh; Bastian, Susan E.P.; Pretorius, Isak S.
- Source:
- Journal of agricultural and food chemistry 2008 v.56 no.22 pp. 10829-10837
- ISSN:
- 0021-8561
- Subject:
- acidity; wine quality; alcoholic fermentation; multiple strain starters; single strain starters; Saccharomyces cerevisiae; winemaking; odor compounds; wine yeasts; odors; thiols; white wines
- Abstract:
- ... Alcoholic fermentation using Saccharomyces wine yeast is an effective means of modulating wine aroma. This study investigated the impact of coinoculating commercial yeast strains (Vin7, QA23, Vin13) on the volatile composition and sensory profile of Sauvignon Blanc wines. Small-scale replicated fermentations were conducted using single-strain and coinoculations of Vin7 with QA23 and with Vin13. Th ...
- DOI:
- 10.1021/jf801695h
- PubMed:
- 18942843
- https://doi.org/10.1021/jf801695h
- Author:
- Wong, E.; Perez, A.M.; Vaillant, F.
- Source:
- Journal of food safety 2008 v.28 no.4 pp. 499-513
- ISSN:
- 0149-6085
- Subject:
- food preservation; orange juice; osmotic pressure; nonthermal processing; juice concentrates; frozen juice; pH; sugar content; acidity; Salmonella; food pathogens; bacterial contamination; food storage; storage temperature; storage time; evaporation; food nutrient losses; sensory evaluation; refrigeration
- Abstract:
- ... The effect of osmotic pressure alone or combined with the application of sonication on the reduction of Salmonella spp. in concentrated orange juice was evaluated. Frozen concentrated orange juice (12.6 MPa, pH = 3.2), a neutral sugar solution (9.2 MPa, pH = 6.6) and an acid sugar solution (8.8 MPa, pH = 3.2) were inoculated with Salmonella spp. (6-7 log cfu/mL). Reductions were measured after dif ...
- DOI:
- 10.1111/j.1745-4565.2008.00127.x
- https://doi.org/10.1111/j.1745-4565.2008.00127.x
- Author:
- Larrigaudière, Christian; Vilaplana, Rosa; Soria, Yolanda; Recasens, Inmaculada
- Source:
- Journal of the science of food and agriculture 2008 v.88 no.9 pp. 1614-1621
- ISSN:
- 0022-5142
- Subject:
- apples; raw fruit; postharvest treatment; postharvest diseases; fruit quality; storage quality; firmness; acidity; multivariate analysis; principal component analysis
- Abstract:
- ... BACKGROUND: The main aim of this work was to define how 1-methylcyclopropene (1-MCP) treatment affects apple fruit quality by two complementary approaches.RESULTS: The results confirmed that 1-MCP treatment maintained firmness and acidity of the fruit. Multivariate analysis distinguished treated and untreated fruits and showed that a relationship exists between 1-MCP treatment and firmness, and al ...
- DOI:
- 10.1002/jsfa.3258
- https://doi.org/10.1002/jsfa.3258
- Author:
- Choi, Jin Kyu; Lee, Do Kyoung; Kim, Yong Woo; Min, Byoung Ryul; Kim, Jong Hak
- Source:
- Journal of polymer science 2008 v.46 no.7 pp. 691-701
- ISSN:
- 0887-6266
- Subject:
- thermal stability; acidity; fuel cells; electrolytes; absorption; polymerization; ambient temperature; scanning electron microscopy; transmission electron microscopy; Fourier transform infrared spectroscopy; hydrogen bonding; sulfonic acids; composite polymers; nanoparticles
- Abstract:
- ... Hybrid organic/inorganic composite polymer electrolyte membranes consisting of a triblock copolymer (tBC) and varying concentrations of heteropolyacid (HPA) were investigated for application in proton exchange membrane fuel cells (PEMFC). An ABC triblock copolymer, that is, polystyrene-b-poly(hydroxyethyl acrylate)-b-poly (styrene sulfonic acid), PS-b-PHEA-b-PSSA, at 28:21:51 wt % was synthesized ...
- DOI:
- 10.1002/polb.21390
- https://doi.org/10.1002/polb.21390
- Author:
- Oddo, Livia Persano; Heard, Tim A.; Rodriguez-Malaver, Antonio; Perez, Rosa Ana; Fernandez-Muino, Miguel; Sancho, Maria Teresa; Sesta, Giulio; Lusco, Lorenzo; Vit, Patricia
- Source:
- Journal of medicinal food 2008 v.11 no.4 pp. 789-794
- ISSN:
- 1096-620X
- Subject:
- Trigona; honey bees; honey; food composition; antioxidant activity; acidity; sugar content; enzyme activity; nitrogen content; electrical conductivity; water content; beta-fructofuranosidase; hydroxymethylfurfural; water activity; flavonoids; polyphenols; organic acids and salts; free radical scavengers; maltose; pH; sucrose; glucose; fructose; functional foods; Australia
- DOI:
- 10.1089/jmf.2007.0724
- https://doi.org/10.1089/jmf.2007.0724