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- Author:
- Lagemann, Annika; Dunkel, Andreas; Hofmann, Thomas
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7211-7217
- ISSN:
- 1520-5118
- Subject:
- Lactuca sativa; aldosterone; angiotensin I; angiotensin II; antihypertensive agents; blood pressure; fractionation; functional foods; glycosidases; glycosides; hydrochloric acid; hydrolysis; inhibitory concentration 50; ion exchange chromatography; lettuce; nuclear magnetic resonance spectroscopy; peptidyl-dipeptidase A; phytochemicals; renin; saliva; stomach
- Abstract:
- ... Angiotensin-converting enzyme (ACE), playing a crucial role in the renin angiotensin aldosterone system, is well-known to catalyze the conversion of the decapeptide angiotensin I into the physiologically active octapeptide angiotensin II, triggering blood pressure increasing mechanisms. To meet the demand for natural phytochemicals as antihypertensive agents in functional food development, extract ...
- DOI:
- 10.1021/jf3022157
- PubMed:
- 22762370
-
http://dx.doi.org/10.1021%2Fjf3022157
- Author:
- Granados-Chinchilla, Fabio; Sánchez, Jorge; García, Fernando; Rodríguez, César
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7121-7128
- ISSN:
- 1520-5118
- Subject:
- animal nutrition; chlortetracycline; correlation; doxycycline; feeds; green chemistry; high performance liquid chromatography; minocycline; oxytetracycline; solid phase extraction; tetracycline; tylosin; Costa Rica
- Abstract:
- ... Although tetracyclines and macrolides are common additives for animal nutrition, methods for their simultaneous determination in animal feeds are nonexistent. By coupling an organic extraction and solid-phase extraction cleanup to a high-performance liquid chromatography separation and a nonaqueous postcolumn derivatization, we succeeded in detecting from 0.2 to 24.0 μg kg–¹ of tetracycline, oxyte ...
- DOI:
- 10.1021/jf301403f
- PubMed:
- 22738432
-
http://dx.doi.org/10.1021%2Fjf301403f
- Author:
- Vaníčková, Lucie; do
Nascimento, Ruth Rufino; Hoskovec, Michal; Ježková, Zuzana; Břízová, Radka; Tomčala, Aleš; Kalinová, Blanka
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7168-7176
- ISSN:
- 1520-5118
- Subject:
- Ceratitis capitata; acetone; beta-pinene; bornyl acetate; chemical composition; electroantennography; females; gas chromatography; geraniol; insects; males; mass spectrometry; sex pheromones; sterile insect technique
- Abstract:
- ... The medfly (Ceratitis capitata) is one of the major agricultural pests controlled through sterile insect technique (SIT) programs. We studied the chemical composition of the volatiles released by calling males from one laboratory and two wild C. capitata populations using two-dimensional gas chromatography with time-of-flight mass spectrometric detection (GC × GC/TOFMS) and gas chromatography with ...
- DOI:
- 10.1021/jf301474d
- PubMed:
- 22741541
-
http://dx.doi.org/10.1021%2Fjf301474d
- Author:
- Cilla, Antonio; Alegría, Amparo; de Ancos, Begoña; Sánchez-Moreno, Concepción; Cano, M. Pilar; Plaza, Lucía; Clemente, Gonzalo; Lagarda, María J.; Barberá, Reyes
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7282-7290
- ISSN:
- 1520-5118
- Subject:
- alpha-tocopherol; ascorbic acid; beverages; bioavailability; carotenoids; food matrix; heat treatment; high pressure treatment; skim milk; soymilk; whole milk
- Abstract:
- ... A study was made of the effect of high-pressure processing (HPP) and thermal treatment (TT) on plant bioactive compounds (tocopherols, carotenoids, and ascorbic acid) in 12 fruit juice–milk beverages and of how the food matrix [whole milk (JW), skimmed milk (JS), and soy milk (JSy)] modulates their bioaccessibility (%). HPP (400 MPa/40 °C/5 min) produced a significant decrease in carotenoid and as ...
- DOI:
- 10.1021/jf301165r
- PubMed:
- 22738607
-
http://dx.doi.org/10.1021%2Fjf301165r
- Author:
- Ding, Fei; Diao, Jian-Xiong; Sun, Ye; Sun, Ying
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7218-7228
- ISSN:
- 1520-5118
- Subject:
- absorption; bioactive properties; bioavailability; blood plasma; citrus fruits; flavanones; fluorescence; hesperidin; human serum albumin; humans; physiological response; simulation models; spectral analysis
- Abstract:
- ... Hesperidin is a flavanone glycoside widely available for dietary intake in citrus fruits or citrus fruit derived products; however, exhaustive and reliable data are scarcely available for biological activity when it exerts protective health effects in humans. The principal intent of this work is to check binding domain and structural changes of human serum albumin (HSA), the primary carrier of fla ...
- DOI:
- 10.1021/jf300424w
- PubMed:
- 22702966
-
http://dx.doi.org/10.1021%2Fjf300424w
- Author:
- Hu, Ling; Rychlik, Michael
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7129-7136
- ISSN:
- 1520-5118
- Subject:
- Fusarium; barley; biosynthesis; chemical structure; detection limit; foods; isotope dilution technique; nuclear magnetic resonance spectroscopy; oats; rye; stable isotopes; wheat
- Abstract:
- ... The first stable isotope dilution assay for the determination of enniatins A, A1, B, and B1 and beauvericin was developed. The ¹⁵N₃-labeled enniatins and beauvericin were biosynthesized by feeding two Fusarium strains Na¹⁵NO₃ and subsequently isolated from the fungal culture. The chemical structures of the biosynthesized products were characterized by LC-MS/MS and ¹H NMR. Standard solutions of ¹⁵N ...
- DOI:
- 10.1021/jf3015602
- PubMed:
- 22734473
-
http://dx.doi.org/10.1021%2Fjf3015602
- Author:
- Sánchez-Patán, Fernando; Tabasco, Raquel; Monagas, María; Requena, Teresa; Peláez, Carmen; Moreno-Arribas, M. Victoria; Bartolomé, Begoña
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7142-7151
- ISSN:
- 1520-5118
- Subject:
- Lactobacillus plantarum; flavanols; intestinal microorganisms; metabolism; metabolites; microbial growth; phenolic acids; proanthocyanidins; procyanidins
- Abstract:
- ... Lactobacillus plantarum IFPL935 was incubated with individual monomeric flavan-3-ols and dimeric A- and B-type procyanidins to identify new metabolites and to determine the effect of compound structural features on bacterial growth and catabolism. Complex extracts rich in A-type proanthocyanidins and phenolic acids from cranberry were also tested. The results showed that L. plantarum IFPL935 exhib ...
- DOI:
- 10.1021/jf3006867
- PubMed:
- 22646528
-
http://dx.doi.org/10.1021%2Fjf3006867
- Author:
- Rozema, Evelien; Popescu, Ruxandra; Sonderegger, Harald; Huck, Christian
W.; Winkler, Johannes; Krupitza, Georg; Urban, Ernst; Kopp, Brigitte
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7204-7210
- ISSN:
- 1520-5118
- Subject:
- Arisaema; Pinellia ternata; apoptosis; cell proliferation; cytotoxicity; digestive system; dissociation; eggplants; foods; hydrolysis; mass spectrometry; metabolites; nuclear magnetic resonance spectroscopy; rhizomes; silica gel; sphingolipids; spinach
- Abstract:
- ... Sphingolipid metabolites regulate cellular processes such as cell proliferation, differentiation, and apoptosis. In this study, glucocerebrosides (GluCer) from rhizomes of Arisaema amurense and Pinellia ternata were fully characterized using 1- and 2-dimensional nuclear magnetic spin resonance (NMR) and circular dichroism (CD) spectroscopy and tandem collision-induced dissociation mass spectrometr ...
- DOI:
- 10.1021/jf302085u
- PubMed:
- 22769731
-
http://dx.doi.org/10.1021%2Fjf302085u
- Author:
- Oelschlaegel, Stefanie; Gruner, Margit; Wang, Pang-Ning; Boettcher, Anja; Koelling-Speer, Isabelle; Speer, Karl
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7229-7237
- ISSN:
- 1520-5118
- Subject:
- 4-hydroxybenzoic acid; antimicrobial properties; benzoic acid; flavonoids; honey; kojic acid; solid phase extraction; syringic acid; New Zealand
- Abstract:
- ... Manuka honey from New Zealand is often considered to be a medicinal product of special value due to its high level of antimicrobial activity. Therefore, the distinct authentication of its botanical origin is of great importance. Aside from the common pollen analysis, it is in this respect particularly the analysis of the phenolic acids, flavonoids, and norisoprenoids that is described as useful. I ...
- DOI:
- 10.1021/jf300888q
- PubMed:
- 22676798
-
http://dx.doi.org/10.1021%2Fjf300888q
- Author:
- Kuroda, Motonaka; Kato, Yumiko; Yamazaki, Junko; Kai, Yuko; Mizukoshi, Toshimi; Miyano, Hiroshi; Eto, Yuzuru
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7291-7296
- ISSN:
- 1520-5118
- Subject:
- derivatization; fish sauce; glutathione; screening; sensory evaluation; China; Italy; Japan; Korean Peninsula; Thailand; Vietnam
- Abstract:
- ... It was recently reported that kokumi substances such as glutathione are perceived through the calcium-sensing receptor (CaSR). In addition, screening by the CaSR assay and sensory evaluation revealed that γ-glutamyl-valyl-glycine (γ-Glu-Val-Gly) was a potent kokumi peptide. In this study, the quantities of γ-Glu-Val-Gly in various commercial fish sauces originating from Vietnam (Nuoc Mum), Thailan ...
- DOI:
- 10.1021/jf3012932
- PubMed:
- 22747195
-
http://dx.doi.org/10.1021%2Fjf3012932
- Author:
- Lisete-Torres, Patrícia; Losada-Barreiro, Sonia; Albuquerque, Hélio; Sánchez-Paz, Verónica; Paiva-Martins, Fátima; Bravo-Díaz, Carlos
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7318-7325
- ISSN:
- 1520-5118
- Subject:
- acetates; antioxidants; emulsions; foods; olive oil
- Abstract:
- ... We employed a kinetic method to determine the distributions of the antioxidants hydroxytyrosol (HT) and hydroxytyrosol acetate (HTA) between the oil, aqueous, and interfacial regions of a model food emulsion composed of stripped olive oil, acidic water, and a blend of Tween 80 and Span 80 [hydrophilic–lipophilic balance (HLB) = 8.05] as an emulsifier. HT is oil-insoluble, but HTA is both oil- and ...
- DOI:
- 10.1021/jf301998s
- PubMed:
- 22720906
-
http://dx.doi.org/10.1021%2Fjf301998s
- Author:
- Meyer, Bianca; Baum, Florian; Vollmer, Gregor; Pischetsrieder, Monika
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7306-7311
- ISSN:
- 1520-5118
- Subject:
- proteome; lactalbumin; alphaS1-casein; Western blotting; food processing; physicochemical properties; milk; oxidation; gel electrophoresis; beta-lactoglobulin
- Abstract:
- ... During thermal milk processing, severe oxidation can occur, which alters the technological and physiological properties of the milk proteins. Due to differences in composition and physicochemical properties, it can be expected that the particular milk proteins are differently affected by oxidative damage. Therefore, the protein-specific distribution of oxidation products in the heated milk proteom ...
- DOI:
- 10.1021/jf301666r
- PubMed:
- 22746820
-
http://dx.doi.org/10.1021%2Fjf301666r
- Author:
- Stergiadis, Sokratis; Leifert, Carlo; Seal, Chris
J.; Eyre, Mick D.; Nielsen, Jacob H.; Larsen, Mette K.; Slots, Tina; Steinshamn, Håvard; Butler, Gillian
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7270-7281
- ISSN:
- 1520-5118
- Subject:
- alpha-tocopherol; beta-lactoglobulin; conjugated linoleic acid; dairy farming; farming systems; fatty acid composition; milk; milk quality; milking; milking parlors; multivariate analysis; omega-3 fatty acids; production technology; England
- Abstract:
- ... There is increasing concern that the intensification of dairy production reduces the concentrations of nutritionally desirable compounds in milk. This study therefore compared important quality parameters (protein and fatty acid profiles; α-tocopherol and carotenoid concentrations) in milk from four dairy systems with contrasting production intensities (in terms of feeding regimens and milking sys ...
- DOI:
- 10.1021/jf301053b
- PubMed:
- 22737968
-
http://dx.doi.org/10.1021%2Fjf301053b
- Author:
- Gong, Lingxiao; Huang, Luolian; Zhang, Ying
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7177-7184
- ISSN:
- 1520-5118
- Subject:
- antioxidant activity; barley bran; correlation; ferulic acid; gallic acid; high performance liquid chromatography; p-coumaric acid
- Abstract:
- ... A steam explosion pretreatment process followed by methanol extraction has been applied for releasing and extracting phenolic compounds, as well as other effective components, from barley bran. The steam explosion treatment was performed at different temperatures ranging from 210 to 250 °C, with a residence time of 30 s. The effect of residence time was also studied in the range 10 s to 120 s at 2 ...
- DOI:
- 10.1021/jf301599a
- PubMed:
- 22708804
-
http://dx.doi.org/10.1021%2Fjf301599a
- Author:
- Cardador, Maria
Jose; Gallego, Mercedes
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7326-7332
- ISSN:
- 1520-5118
- Subject:
- risk; vegetables; derivatization; detection limit; sanitizing; chlorine; headspace analysis; food industry; chlorination; byproducts; human health; haloacetic acids; mass spectrometry; washing; disinfection; fresh-cut foods; drinking water; gas chromatography; carcinogenicity; United States
- Abstract:
- ... Chlorine solutions are usually used to sanitize fruit and vegetables in the fresh-cut industry due to their efficacy, low cost, and simple use. However, disinfection byproducts such as haloacetic acids (HAAs) can be formed during this process, which can remain on minimally processed vegetables (MPVs). These compounds are toxic and/or carcinogenic and have been associated with human health risks; t ...
- DOI:
- 10.1021/jf302591u
- PubMed:
- 22747435
-
http://dx.doi.org/10.1021%2Fjf302591u
- Author:
- Ahmad, Hussain; Tian, Jinke; Wang, Jianjun; Khan, Muhammad
Ammar; Wang, Yuanxiao; Zhang, Lili; Wang, Tian
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7111-7120
- ISSN:
- 1520-5118
- Subject:
- antioxidant activity; breast meat; chickens; enzyme activity; glutathione peroxidase; lipid peroxidation; oxidative stability; selenium; sodium selenite; superoxide dismutase; yeasts
- Abstract:
- ... The effects of sodium selenite (SS) and selenium yeast (SY) alone and in combination (MS) on the selenium (Se) content, antioxidant enzyme activities (AEA), total antioxidant capacity (TAC), and oxidative stability of chicken breast meat were investigated. The results showed that the highest (p < 0.05) glutathione peroxidase (GSH-Px) activity was found in the SS-supplemented chicken breast meat; h ...
- DOI:
- 10.1021/jf3017207
- PubMed:
- 22732007
-
http://dx.doi.org/10.1021%2Fjf3017207
- Author:
- Charoenprasert, Suthawan; Mitchell, Alyson
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7081-7095
- ISSN:
- 1520-5118
- Subject:
- Mediterranean diet; Olea europaea; antioxidants; chronic diseases; cultivars; hydrolysis; oleuropein; olive oil; olives; phenolic compounds; ripening; risk
- Abstract:
- ... The Mediterranean diet appears to be associated with a reduced risk of several chronic diseases including cancer and cardiovascular and Alzheimer’s diseases. Olive products (mainly olive oil and table olives) are important components of the Mediterranean diet. Olives contain a range of phenolic compounds; these natural antioxidants may contribute to the prevention of these chronic conditions. Cons ...
- DOI:
- 10.1021/jf3017699
- PubMed:
- 22720792
-
http://dx.doi.org/10.1021%2Fjf3017699
- Author:
- Zou, Xiao-Qiang; Guo, Zheng; Huang, Jian-Hua; Jin, Qing-Zhe; Cheong, Ling-Zhi; Wang, Xing-Guo; Xu, Xue-Bing
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7158-7167
- ISSN:
- 1520-5118
- Subject:
- cholesterol; colostrum; fat globules; fatty acid composition; human milk fat; lactation; lipid content; microstructure; milk; milk fat; mothers; phospholipids; physicochemical properties; polyunsaturated fatty acids; sphingomyelins; temperature
- Abstract:
- ... The physicochemical properties of human milk fat globules (MFG) at different lactation stages from Danish mothers and the microstructure changes of MFG membrane (MFGM) at varied temperatures were investigated, and the relationship between chemical composition and the microstructure of MFGM was elucidated. The fat content in MFG was found to be significantly increased as lactation progressed, and c ...
- DOI:
- 10.1021/jf3013597
- PubMed:
- 22747344
-
http://dx.doi.org/10.1021%2Fjf3013597
- Author:
- Cha, Kwang
Hyun; Song, Dae-Geun; Kim, Sang Min; Pan, Cheol-Ho
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7152-7157
- ISSN:
- 1520-5118
- Subject:
- Ligularia; absorption; beverages; bioavailability; digestion; gastrointestinal system; green tea; inhibitory concentration 50; isomers; lipolysis; polyphenols; triacylglycerol lipase
- Abstract:
- ... Green tea, coffee, and gomchui (Ligularia fischeri) tea, which are rich in polyphenols, may exhibit antiobesity effects by inhibiting pancreatic lipase. However, the bioavailability of some polyphenols is poor due to either degradation or absorption difficulties in the gastrointestinal tract, thus making their beneficial effects doubtful. This study was conducted to evaluate the inhibitory effect ...
- DOI:
- 10.1021/jf301047f
- PubMed:
- 22730927
-
http://dx.doi.org/10.1021%2Fjf301047f
- Author:
- Yeom, Hwa-Jeong; Kang, Jae Soon; Kim, Gil-Hah; Park, Il-Kwon
- Source:
- Journal of agricultural and food chemistry 2012 v.60 no.29 pp. 7194-7203
- ISSN:
- 1520-5118
- Subject:
- Anethum graveolens; Blattella germanica; Carum carvi; Cuminum cyminum; Trachyspermum ammi; acetylcholine; alpha-pinene; carvacrol; carvone; cumin; dill; essential oils; fumigants; gamma-terpinene; imagos; inhibitory concentration 50; insecticidal properties; oils; p-cymene; thymol; toxicity
- Abstract:
- ... We evaluated the insecticidal and acetylcholine esterase (AChE) inhibition activity of 11 Apiaceae plant essential oils and their constituents in adult male and female Blattella germanica. Of the 11 Apiaceae plant essential oils tested, dill (Anethum graveolens), carvi (Carum carvi), and cumin (Cuminum cyminum) demonstrated >90% fumigant toxicity against adult male German cockroaches at a concentr ...
- DOI:
- 10.1021/jf302009w
- PubMed:
- 22746406
-
http://dx.doi.org/10.1021%2Fjf302009w