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1. Dissipation and transport of clopyralid in soil: Effect of application strategies

Author:
Sakaliene, Ona; Rice, Pamela J.; Koskinen, William C.; Blažauskiene, Gintare
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7891
ISSN:
0021-8561
Subject:
application rate; application timing; broadleaf weeds; buckwheat; clopyralid; field experimentation; leaching; sandy loam soils; weed control
Abstract:
... At present there are no herbicides registered for broadleaf weed control in buckwheat. Clopyralid, mixed with desmedipham, was anticipated to provide early-season broadleaf weed suppression with minimal crop injury. However, field trials resulted in limited success which brought to question the fate and availability of clopyralid for weed control. A 4-year field study was conducted in Lithuania to ...
Handle:
10113/59563
DOI:
10.1021/jf2012503
PubMed:
21692509

2. Acaricidal Activities of Apiol and Its Derivatives from Petroselinum sativum Seeds against Dermatophagoides pteronyssinus, Dermatophagoides farinae, and Tyrophagus putrescentiae

Author:
Song, Ha Yun; Yang, Ji Yeon; Suh, Joo Won; Lee, Hoi Seon
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7759-7764
ISSN:
0021-8561
Subject:
Dermatophagoides farinae; Dermatophagoides pteronyssinus; Petroselinum crispum; Tyrophagus putrescentiae; acaricidal properties; benzyl benzoate; bioassays; lethal dose 50; mites; seeds; structure-activity relationships
Abstract:
... The acaricidal effects of an active constituent derived from Petroselinum sativum seeds and its derivatives were determined using impregnated fabric disk bioassay against Dermatophagoides farinae, Dermatophagoides pteronyssinus, and Tyrophagus putrescentiae and compared with that of synthetic acaricide. The acaricidal constituent of P. sativum was isolated by various chromatographic techniques and ...
DOI:
10.1021/jf201945y
PubMed:
21688847

3. AGE-Induced Interference of Glucose Uptake and Transport as a Possible Cause of Insulin Resistance in Adipocytes

Author:
Wu, Chi-Hao; Huang, Hsiao-Wen; Huang, Shang-Ming; Lin, Jer-An; Yeh, Chi-Tai; Yen, Gow-Chin
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7978-7984
ISSN:
0021-8561
Subject:
adipocytes; bovine serum albumin; glucose; glucose transporters; insulin; insulin resistance; myocytes; oxidative stress; skeletal muscle; tumor necrosis factor-alpha
Abstract:
... The purpose of this study was to investigate the distinct roles of advanced glycation end products (AGEs) on insulin-mediated glucose disposal in 3T3-L1 adipocytes and C2C12 skeletal muscle cells. AGE-modified proteins, namely, GO-AGEs, were prepared by incubating bovine serum albumin (BSA) with glyoxal (GO) for 7 days. Glucose utilization rates and the expression of insulin signaling-associated p ...
DOI:
10.1021/jf201271y
PubMed:
21650468

4. Analysis of Patulin in Pear- and Apple-Based Foodstuffs by Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometry

Author:
Desmarchelier, Aurelien; Mujahid, Claudia; Recault, Lucie; Perring, Loíc; Lancova, Katerina
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7659-7665
ISSN:
0021-8561
Subject:
apples; detection limit; infant foods; ionization; isotope dilution technique; juices; liquid chromatography; magnesium sulfate; mass spectrometry; patulin; pears; sodium chloride; sodium sulfate; solid phase extraction
Abstract:
... A liquid chromatography electrospray ionization tandem mass spectrometry method for the determination of patulin in apple- and pear-based foodstuffs was developed. The sample preparation is based on the QuEChERS procedure involving an initial extraction step with water and acetonitrile, followed by a partitioning step after the addition of magnesium sulfate and sodium chloride. The cleanup was per ...
DOI:
10.1021/jf201461r
PubMed:
21699174

5. Analysis of Veterinary Drugs and Metabolites in Milk Using Quadrupole Time-of-Flight Liquid Chromatography−Mass Spectrometry

Author:
Turnipseed, Sherri B.; Storey, Joseph M.; Clark, Susan B.; Miller, Keith E.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7569-7581
ISSN:
0021-8561
Subject:
cephapirin; cows; databases; drug residues; enrofloxacin; flunixin; ions; macrolides; mass spectrometry; metabolites; milk; molecular weight; monitoring; screening; sulfonamides; tetracyclines; veterinary drugs
Abstract:
... A quadrupole time-of-flight (Q-TOF) liquid chromatography−mass spectrometry (LC-MS) method was developed to analyze veterinary drug residues in milk. Milk samples were extracted with acetonitrile. A molecular weight cutoff filter was the only cleanup step in the procedure. Initially, a set of target compounds (including representative sulfonamides, tetracyclines, beta-lactams, and macrolides) was ...
DOI:
10.1021/jf103808t

6. Antiosteoporotic Effects of Lactobacillus-Fermented Soy Skim Milk on Bone Mineral Density and the Microstructure of Femoral Bone in Ovariectomized Mice

Author:
Chiang, Shen-Shih; Pan, Tzu-Ming
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7734-7742
ISSN:
0021-8561
Subject:
Lactobacillus paracasei subsp. paracasei; Lactobacillus plantarum; bone density; bone resorption; calcium; cholecalciferol; dietary supplements; femur; fermented milk; isoflavones; mice; microstructure; osteoporosis; ovariectomy; risk; skim milk; women
Abstract:
... Osteoporosis is a major skeletal disease associated with loss of estrogen in postmenopausal women. In this study, Lactobacillus paracasei subsp. paracasei NTU 101 (NTU 101F) and Lactobacillus plantarum NTU 102 (NTU 102F) were used as starters to ferment soy skim milk. This was then used as a nutritional supplement for 8 weeks to ovariectomized (OVX) mice. This study reveals that soy skim milk ferm ...
DOI:
10.1021/jf2013716
PubMed:
21668014

7. Antioxidant and Antiproliferative Activities of Loach (Misgurnus anguillicaudatus) Peptides Prepared by Papain Digestion

Author:
You, Lijun; Zhao, Mouming; Liu, Rui Hai; Regenstein, Joe M.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7948-7953
ISSN:
0021-8561
Subject:
Misgurnus anguillicaudatus; anticarcinogenic activity; antioxidant activity; breast neoplasms; cell proliferation; clinical trials; colon; colorectal neoplasms; digestion; free radical scavengers; liver neoplasms; papain; peptides; protein hydrolysates
Abstract:
... Loach protein hydrolysates (LPH) prepared by papain digestion were fractionated into four fractions, LPH-I (MW > 10 kDa), LPH-II (MW = 5-10 kDa), LPH-III (MW = 3–5 kDa), LPH-IV (MW < 3 kDa), and the in vitro antioxidant and antiproliferative (anticancer) activities of all fractions were determined. LPH-IV showed the lowest IC50 value (16.9 +/- 0.21 mg/mL) for hydroxyl radical scavenging activity a ...
DOI:
10.1021/jf2016368
PubMed:
21675717

8. A 4-Week Repeated Oral Dose Toxicity Study of Dairy Fat Naturally Enriched in Vaccenic, Rumenic and α-Linolenic Acids in Rats

Author:
Anadón, Arturo; Martínez-Larran̋aga, María Rosa; Aranzazu, Martinez, María; Ares, Irma; Ramos, Eva; Gómez-Cortés, Pilar; Juárez, Manuela; Fuente, Miguel Angel de la
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 8036-8046
ISSN:
0021-8561
Subject:
alpha-linolenic acid; cholesterol; fat intake; food consumption; mortality; oral administration; rats; risk; tissue weight; toxicity; triacylglycerols; weight gain
Abstract:
... Few studies have focused on the toxicological risks of dairy fat intake. A standard dairy fat (SDF) with a 70% SFA content and a naturally enriched dairy fat (EDF) in vaccenic, rumenic and α-linolenic acids and low in SFA (54%) have been examined in a 4-week repeated dose oral toxicity study as a daily dose of 2000 mg/kg bw by gavage in rats. Comparisons were established with a third group of rats ...
DOI:
10.1021/jf201251g
PubMed:
21678997

9. Berberine, an Isoquinoline Alkaloid in Herbal Plants, Protects Pancreatic Islets and Serum Lipids in Nonobese Diabetic Mice

Author:
Chueh, Wei-Han; Lin, Jin-Yuarn
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 8021-8027
ISSN:
0021-8561
Subject:
berberine; blood lipids; high density lipoprotein cholesterol; insulin-dependent diabetes mellitus; islets of Langerhans; low density lipoprotein; mice; tube feeding
Abstract:
... Type 1 diabetes (T1D) damages pancreatic islets, gradually causing chronic complications. This study investigated the berberine effect on T1D in vivo. Nonobese diabetic (NOD) mice were grouped and administered 50, 150, and 500 mg of berberine/kg of body weight over 14 weeks using consecutive tube feeding. Changes in pancreatic islets, serum insulin, berberine, and lipid levels were determined. The ...
DOI:
10.1021/jf201627w
PubMed:
21696141

10. Biofumigation for Control of Pale Potato Cyst Nematodes: Activity of Brassica Leaf Extracts and Green Manures on Globodera pallida in Vitro and in Soil

Author:
Lord, James S.; Lazzeri, Luca; Atkinson, Howard J.; Urwin, Peter E.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7882-7890
ISSN:
0021-8561
Subject:
Brassica juncea; Globodera pallida; biofumigation; cyst nematodes; eggs; glucosinolates; green manures; high performance liquid chromatography; leaf extracts; leaves; messenger RNA; mortality; nematode larvae; potatoes; soil; soil ecology; soil toxicity; toxicity
Abstract:
... The effects of brassica green manures on Globodera pallida were assessed in vitro and in soil microcosms. Twelve of 22 brassica accessions significantly inhibited the motility of G. pallida infective juveniles in vitro. Green manures of selected brassicas were then incorporated into soil containing encysted eggs of G. pallida. Their effect on egg viability was estimated by quantifying nematode act ...
DOI:
10.1021/jf200925k
PubMed:
21718044

11. Biomass Characterization of Morphological Portions of Alamo Switchgrass

Author:
Hu, Zhoujian; Foston, Marcus B.; Ragauskas, Arthur J.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7765-7772
ISSN:
0021-8561
Subject:
Panicum virgatum; benzene; biomass; cellulose; chemical composition; ethanol; internodes; leaves; lignin; nuclear magnetic resonance spectroscopy; ultrastructure
Abstract:
... Comparative studies between the leaf and internode portions of switchgrass, Panicum virgatum L., were performed by compositional analysis and structural determination. GC-MS, ICP, and HPAEC-PAD were employed to analyze the chemical compositions of the fractionated switchgrass samples. Quantitative 13C NMR and CP/MAS 13C NMR techniques were employed to determine the structures of lignin and cellulo ...
DOI:
10.1021/jf104844r
PubMed:
21714578

12. Biotechnological Production of Vitamin B2-Enriched Bread and Pasta

Author:
Capozzi, Vittorio; Menga, Valeria; Digesu, Anna Maria; De Vita, Pasquale; van Sinderen, Douwe; Cattivelli, Luigi; Fares, Clara; Spano, Giuseppe
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 8013-8020
ISSN:
0021-8561
Subject:
Lactobacillus plantarum; beverages; breads; dough; durum wheat; functional foods; grain foods; high performance liquid chromatography; lactic acid bacteria; novel foods; pasta; riboflavin; semolina; wheat flour
Abstract:
... Lactic acid bacteria (LAB) were obtained from durum wheat flour samples and screened for roseoflavin-resistant variants to isolate natural riboflavin-overproducing strains. Two riboflavin-overproducing strains of Lactobacillus plantarum isolated as described above were used for the preparation of bread (by means of sourdough fermentation) and pasta (using a prefermentation step) to enhance their v ...
DOI:
10.1021/jf201519h
PubMed:
21678896

13. Browning in Ethanolic Solutions of Ascorbic Acid and Catechin

Author:
Chuang, Pei-Ting; Shen, Szu-Chuan; Wu, James Swi-Bea
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7818-7824
ISSN:
0021-8561
Subject:
Maillard reaction; alcoholic beverages; ascorbic acid; catechin; color; ethanol; fruit juices; glycerol; ingredients; phenolic compounds; raw materials; water activity
Abstract:
... Nonenzymatic browning occurs readily in alcoholic beverages and degrades their color quality. Ascorbic acid degradation in the presence of phenolic compounds is a major browning pathway in alcoholic beverages with fruit or fruit juice as the raw material or an ingredient. In the present study ethanolic solutions of ascorbic acid and catechin were prepared to simulate the alcoholic beverages. Ascor ...
DOI:
10.1021/jf200817e
PubMed:
21668002

14. Cell Wall Polysaccharides of Near-Isogenic Lines of Melon (Cucumis melo L.) and Their Inbred Parentals Which Show Differential Flesh Firmness or Physiological Behavior

Author:
Dos-Santos, Noelia; Jiménez-Araujo, Ana; Rodríguez-Arcos, Rocío; Fernández-Trujillo, J. Pablo
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7773-7784
ISSN:
0021-8561
Subject:
Cucumis melo; cell walls; cellulose; firmness; molecular weight; quantitative trait loci; sugar content; sugars
Abstract:
... We characterized differences in cell wall material and polysaccharide structures, due to the quantitative trait loci associated with higher flesh firmness in a nonclimacteric near-isogenic line (NIL) SC7-2, and with the climacteric behavior of the NIL SC3-5-1, using their nonclimacteric inbred parentals, “Piel de Sapo” (PS) and PI 161375 (SC). PS was firmer and had a higher ripening index and grea ...
DOI:
10.1021/jf201155a
PubMed:
21608971

15. Characterization of Alginase and Elicitor-Active Oligosaccharides from Gracilibacillus A7 in Alleviating Salt Stress for Brassica campestris L

Author:
Tang, Jingchun; Zhou, Qixing; Chu, Hongrui; Nagata, Shinichi
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7896-7901
ISSN:
0021-8561
Subject:
Brassica rapa subsp. campestris; Gracilibacillus; alginate lyase; lipid peroxidation; magnesium; metal ions; oligosaccharides; peroxidase; polymerization; salt stress; superoxide dismutase
Abstract:
... Alginase was purified from Gracilibacillus A7 and evaluated for its ability to produce elicitor-active oligosaccharides. The optimum conditions for the alginase reaction are as follows: temperature, 40 °C; pH, 8.0; alginate content, 0.3-0.7%; and the presence of Na+ and Mg2+ metal ions. The degree of polymerization (DP) decreased as the reaction time of the alginase progressed, achieving values of ...
DOI:
10.1021/jf201793s
PubMed:
21696216

16. Cloning, Expression, and Characterization of a D-Psicose 3-Epimerase from Clostridium cellulolyticum H10

Author:
Mu, Wanmeng; Chu, Feifei; Xing, Qingchao; Yu, Shuhuai; Zhou, Leon; Jiang, Bo
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7785-7792
ISSN:
0021-8561
Subject:
Clostridium cellulolyticum; Escherichia coli; chromatography; electrophoresis; enzyme activity; enzyme kinetics; fructose; genes; half life; pH; psicose; temperature; thermal stability; xylose isomerase
Abstract:
... The noncharacterized protein ACL75304 encoded by the gene Ccel_0941 from Clostridium cellulolyticum H10 (ATCC 35319), previously proposed as the xylose isomerase domain protein TIM barrel, was cloned and expressed in Escherichia coli. The expressed enzyme was purified by nickel-affinity chromatography with electrophoretic homogeneity and then characterized as d-psicose 3-epimerase. The enzyme was ...
DOI:
10.1021/jf201356q

17. Combined Pressure–Temperature Effects on Carotenoid Retention and Bioaccessibility in Tomato Juice

Author:
Gupta, Rockendra; Kopec, Rachel E.; Schwartz, Steven J.; Balasubramaniam, V.M.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7808-7817
ISSN:
0021-8561
Subject:
beta-carotene; bioavailability; crystals; electron microscopy; high pressure treatment; lycopene; temperature; tomato juice
Abstract:
... This study highlights the changes in lycopene and beta-carotene retention in tomato juice subjected to combined pressure-temperature (P-T) treatments ((high-pressure processing (HPP; 500-700 MPa, 30 °C), pressure-assisted thermal processing (PATP; 500-700 MPa, 100 °C), and thermal processing (TP; 0.1 MPa, 100 °C)) for up to 10 min. Processing treatments utilized raw (untreated) and hot break (93 ° ...
DOI:
10.1021/jf200575t
PubMed:
21678993
PubMed Central:
PMC3858575

18. Comparative Study of the Main Top-down Approaches for the Estimation of Measurement Uncertainty in Multiresidue Analysis of Pesticides in Fruits and Vegetables

Author:
Medina-Pastor, Paula; Valverde, Antonio; Pihlström, Tuija; Masselter, Sonja; Gamon, Miguel; Mezcua, Milagros; Rodríguez-Torreblanca, Carmelo; Fernández-Alba, Amadeo R.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7609-7619
ISSN:
0021-8561
Subject:
databases; foods; fruits; guidelines; multiresidue analysis; pesticides; quality control; uncertainty; vegetables
Abstract:
... Practical "top-down" approaches appear to be the most suitable for the evaluation of measurement uncertainty in pesticide residue testing laboratories, where analytical procedures are routinely applied to a large number of pesticide/food combinations. The opposite approach, "bottom-up" evaluation of measurement uncertainty, leads to great difficulties in evaluating all of the pesticides in a consi ...
DOI:
10.1021/jf104060h
PubMed:
21155569

19. Composition and Stability of Anthocyanins from Purple Solanum tuberosum and Their Protective Influence on Cr(VI) Targeted to Bovine Serum Albumin

Author:
Zhao, Xingchen; Sheng, Feng; Zheng, Jianli; Liu, Rutao
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7902-7909
ISSN:
0021-8561
Subject:
Solanum tuberosum; anthocyanins; bovine serum albumin; chromium; color; fluorescence; food additives; heat; high performance liquid chromatography; pH; seeds; spectroscopy; temperature
Abstract:
... Anthocyanins from the purple Solanum tuberosum newly cultivated by the Taian Academy of Agricultural Sciences were extracted and analyzed using high-performance liquid chromatography (HPLC) and UV-vis spectroscopy. Four individual anthocyanins were detected as the major components, and the total anthocyanin content was 273.5 +/- 14.3 mg of cyanidin-3-glucoside equiv/100 g of dry seeds. Results of ...
DOI:
10.1021/jf2011408
PubMed:
21692542

20. Contributions of Pesticide Residue Chemistry to Improving Food and Environmental Safety: Past and Present Accomplishments and Future Challenges

Author:
Seiber, James N.; Kleinschmidt, Loreen A.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.14 pp. 7536-7543
ISSN:
0021-8561
Subject:
adverse effects; chemistry; endocrine-disrupting chemicals; environmental fate; environmental health; enzyme-linked immunosorbent assay; foods; funding; gas chromatography; high performance liquid chromatography; international cooperation; mass spectrometry; occupational health and safety; packaging materials; pesticides; pollutants; research and development
Abstract:
... The principles of modern pesticide residue chemistry were articulated in the 1950s. Early authors pointed out the advantages of systematizing and standardizing analytical methods for pesticides so that they could be widely practiced and the results could be reproduced from one laboratory to the next. The availability of improved methods has led to a much more complete understanding of pesticide be ...
DOI:
10.1021/jf103902t
PubMed:
21473621