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The chloroform fraction of guava (Psidium cattleianum sabine) leaf extract inhibits human gastric cancer cell proliferation via induction of apoptosis

The antiproliferative activities of the chloroform fraction (CF) of guava (Psidium cattleianum Sabine) leaf extract were evaluated using several cancer cell lines. Maximum cytotoxicity was observed in SNU-16, a human gastric carcinoma cell line, at concentrations of 50?100?g/ml.

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2011

ISSN:0308-8146

数据源:报刊文摘

Naturally-occurring folates in foods: Method development and analysis using liquid chromatography–tandem mass spectrometry (LC–MS/MS)

Quantification of folates was performed using 13C labelled internal standards. This paper outlines the development of a comparatively fast LC?MS/MS method, method validation using commercially available folate standards and establishment of the method?

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2011

ISSN:0308-8146

数据源:报刊文摘

Contribution of Leu and Hyp residues to antioxidant and ACE-inhibitory activities of peptide sequences isolated from squid gelatin hydrolysate

Squid gelatin obtained from inner and outer tunics was hydrolysed with Alcalase to isolate antioxidant peptide sequences. The ACE-inhibitory activity of the isolated peptides was also evaluated.

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2011

ISSN:0308-8146

数据源:报刊文摘

Insecticides extraction from banana leaves using a modified QuEChERS method

The extraction and preconcentration of these pesticides were carried out using a modified QuEChERS procedure and the whole method was validated in terms of repeatability, linearity, precision and accuracy. Triphenylphosphate was used as internal standard.

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2011

ISSN:0308-8146

数据源:报刊文摘

Combustion Characteristics of the Original and Demineralized Afsin-Elbistan Lignite and Its Char

Simultaneous thermal analysis and mass spectrometry were used to determine the combustion characteristics of the original and demineralized Afsin-Elbistan lignite and its char. The major gaseous products evolved were characterized. An integral method was applied for kinetic calculations.

出版机构:Taylor & Francis

刊物名称:Energy Sources, Part A: Recovery, Utilization, and Environmental Effects

出版时间:2011

ISSN:1556-7036

数据源:报刊文摘

Hydrolysis of β-lactoglobulin by trypsin under acidic pH and analysis of the hydrolysates with MALDI–TOF–MS/MS

� Bovine �-lactoglobulin (�-Lg) hydrolysis patterns of �-Lg similar at pH 5 7.8. � Low resistance of �-Lg to trypsin at optimum and pH 7; random and simultaneous. � Increased resistance with low pH; slow and ordered.

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2011

ISSN:0308-8146

数据源:报刊文摘

Optimization of equilibrium headspace analysis of volatile flavor compounds of malaysian soursop (Annona muricata): Comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC-TOFMS)

� Soursop (Annona muricata) is among the important tropical fruits that contribute to the economic growth of some tropical countries, namely, tropical America, Australia, Africa and Malaysia. � Soursop has a pleasant, distinctive aroma that is described as a custard-like flavor when it is ripe.

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2011

ISSN:0308-8146

数据源:报刊文摘

Subduction–accretion–collision history along the Gondwana suture in southern India: A laser ablation ICP-MS study of zircon chronology

� The age data obtained from the plagiogranite of Manamedu might indicate the timing of the birth of the Mozambique Ocean floor to be around or prior to ca. 820Ma. � The age of ca.

出版机构:Elsevier Science

刊物名称:Journal of Asian Earth Sciences

出版时间:2011

ISSN:1367-9120

数据源:报刊文摘

Determination of ionophore coccidiostats in feeding stuffs by liquid chromatography–tandem mass spectrometry. Part II. Application to cross-contamination levels and non-targeted feed

The corresponding maximum levels have been recently introduced by European legislation. The method developed involved a simple extraction of the coccidiostats from the feed samples followed by centrifugation and filtration of the supernatants for all matrices.

出版机构:Elsevier Science

刊物名称:Journal of Pharmaceutical and Biomedical Analysis

出版时间:2011

ISSN:0731-7085

数据源:报刊文摘

An optimized magnetite microparticle-based phosphopeptide enrichment strategy for identifying multiple phosphorylation sites in an immunoprecipitated protein

To further improve the selectivity and throughput of phosphopeptide analysis for the samples from real-time cell lysates, here we demonstrate a highly efficient method for phosphopeptide enrichment via newly synthesized magnetite microparticles and the concurrent mass spectrometric analysis.

出版机构:Elsevier Science

刊物名称:Analytical Biochemistry

出版时间:2011

ISSN:0003-2697

数据源:报刊文摘