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1. Broad-Specificity Immunoassay for Simultaneous Detection of Ochratoxins A, B, and C in Millet and Maize

Author:
Zhang, Yaqiong; Wang, Lanteng; Shen, Xing; Wei, Xiaoqun; Huang, Xinan; Liu, Yingju; Sun, Xiulan; Wang, Zhanhui; Sun, Yuanming; Eremin, Sergei A.; Lei, Hongato; Xu, Zhenlin
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4830-4838
ISSN:
0021-8561
Subject:
antibodies; chlorine; corn; enzyme-linked immunosorbent assay; feeds; food safety; haptens; millets; molecular models; ochratoxins
Abstract:
... Ochratoxins A, B, and C (OTA, OTB, and OTC) can be found in cereals and feeds; the simultaneous detection of these ochratoxins holds a great need in food safety. In this study, four antibodies raised from two ochrotoxin haptens and two coating antigens were compared, and then a sensitive and broad-specificity enzyme-linked immunosorbent assay (ELISA) was established for the simultaneous determinat ...
DOI:
10.1021/acs.jafc.7b00770

2. Calcium, Iron, and Zinc Bioaccessibilities of Australian Sweet Lupin (Lupinus angustifolius L.) Cultivars

Author:
Karnpanit, Weeraya; Coorey, Ranil; Clements, Jon; Benjapong, Wenika; Jayasena, Vijay
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4722-4727
ISSN:
0021-8561
Subject:
Lupinus angustifolius; bioavailability; calcium; cultivars; hulling; iron; seeds; zinc; Western Australia
Abstract:
... In this study, we aimed to determine the effect of the cultivar and dehulling on calcium, iron, and zinc bioaccessibilities of Australian sweet lupin (ASL). Ten ASL cultivars grown in 2011, 2012, and 2013 in Western Australia were used for the study. The bioaccessibilities of calcium, iron, and zinc in whole seed and dehulled lupin samples were determined using a dialysability method. The cultivar ...
DOI:
10.1021/acs.jafc.7b00445

3. Control of Maillard Reactions in Foods: Strategies and Chemical Mechanisms

Author:
Lund, Marianne N.; Ray, Colin A.
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4537-4552
ISSN:
0021-8561
Subject:
Maillard reaction; advanced glycation end products; digestible protein; enzymes; functional foods; polyphenols; reaction mechanisms; sensory properties; vitamins
Abstract:
... Maillard reactions lead to changes in food color, organoleptic properties, protein functionality, and protein digestibility. Numerous different strategies for controlling Maillard reactions in foods have been attempted during the past decades. In this paper, recent advances in strategies for controlling the Maillard reaction and subsequent downstream reaction products in food systems are criticall ...
DOI:
10.1021/acs.jafc.7b00882

4. Development and Application of a Screening Method of Absolute Quantitative PCR To Detect the Abuse of Sex Steroid Hormone Administration in Male Bovines

Author:
Cucuzz, Laura Starvaggi; Biolatti, Bartolomeo; Divari, Sara; Pregel, Paola; Scaglione, Frine E.; Sereno, Alessandra; Cannizzo, Francesca T.
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4866-4874
ISSN:
0021-8561
Subject:
beef; beef cattle; biomarkers; food safety; gene expression; genes; humans; immunohistochemistry; in vivo studies; males; protein synthesis; quantitative polymerase chain reaction; screening; sex hormones; steroid hormones; testes; transcriptomics; veal calves
Abstract:
... A methodology for the absolute quantification of regucalcin gene through quantitative PCR was set up to confirm that the decrease of regucalcin gene expression in the testis is an effective biomarker for tracing sex steroid hormone treatment in bovine husbandry. On the basis of TaqMan technology, an external standard curve was generated. Using in vivo experiments, a ROC curve was developed to calc ...
DOI:
10.1021/acs.jafc.7b00852

5. Effect of Wood Aging on Wine Mineral Composition and 87Sr/86Sr Isotopic Ratio

Author:
Kaya, Ayse D.; Sousa, Raul Bruno de; Curvelo-Garcia, Antonio S.; Ricardo-da-Silva, Jorge M.; Catarino, Sofia
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4766-4776
ISSN:
0021-8561
Subject:
Quercus petraea; aluminum; analysis of variance; antimony; arsenic; atomic absorption spectrometry; barium; calcium; cobalt; copper; iron; lead; magnesium; manganese; mineral content; molybdenum; nickel; polysaccharides; potassium; red wines; rubidium; sodium; stainless steel; strontium; tanks; titanium; traceability; vanadium; wood; zinc; zirconium
Abstract:
... The evolution of mineral composition and wine strontium isotopic ratio 87Sr/86Sr (Sr IR) during wood aging were investigated. A red wine was aged in stainless steel tanks with French oak staves (Quercus sessiliflora Salisb.), with three industrial scale replicates. Sampling was carried out after 30, 60, and 90 days of aging, and the wines were evaluated in terms of general analysis, phenolic compo ...
DOI:
10.1021/acs.jafc.7b01510

6. Effects of Water-Extractable Arabinoxylan on the Physicochemical Properties and Structure of Wheat Gluten by Thermal Treatment

Author:
Zhu, Yunping; Wang, Yu; Li, Jinlong; Li, Fang; Teng, Chao; Li, Xiuting
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4728-4735
ISSN:
0021-8561
Subject:
Fourier transform infrared spectroscopy; arabinoxylan; disulfide bonds; ferulic acid; heat treatment; hydrogen bonding; hydrophilicity; temperature; texture; wheat gluten
Abstract:
... This study investigated the effects of water-extractable arabinoxylan (WEAX) on gluten by thermal treatment. Fourier transform infrared spectroscopy (FTIR) results showed that heating significantly decreased β-sheets and β-turn structures in gluten proteins between 25 and 55 °C. The addition of WEAX caused a transition from β-turn to β-sheets at >55 °C. The ratio of weakly hydrogen-bonded β-sheets ...
DOI:
10.1021/acs.jafc.7b00837

7. Engineering Eschericha coli for Enhanced Tyrosol Production

Author:
Xue, Yuxiang; Chen, Xianzhong; Yang, Cui; Chang, Junzhuang; Shen, Wei; Fan, You
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4708-4714
ISSN:
0021-8561
Subject:
Escherichia coli; engineering; gene overexpression; genes; glucose; hosts; liquid state fermentation; olive oil; phenylacetaldehyde; transaminases; tyrosine; wines
Abstract:
... Tyrosol is a phenolic compound found in olive oil and wines. The health benefits of tyrosol have attracted considerable attention. Because the tyrosol extraction from plants poses a major obstacle, biosynthesizing this compound using microbial hosts is of interest. In this study, the phenylpyruvate decarboxylase gene ARO10 and the aromatic amino acid aminotransferase gene ARO8 were introduced into ...
DOI:
10.1021/acs.jafc.7b01369

8. Enhancement of Antioxidative and Intestinal Anti-inflammatory Activities of Glycated Milk Casein after Fermentation with Lactobacillus rhamnosus 4B15

Author:
Oh, Nam Su; Joung, Jae Yeon; Lee, Ji Young; Kim, Younghoon; Kim, Sae Hun
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4744-4754
ISSN:
0021-8561
Subject:
Lactobacillus rhamnosus; amino acid sequences; anti-inflammatory activity; antioxidant activity; casein; epithelium; fermentation; functional properties; galactose; glucose; glycation; glycoproteomics; glycosylation; inflammation; milk; serine; threonine
Abstract:
... In this study, we investigated the glycoproteomics of glycated milk casein (GMC) and GMC fermented by Lactobacillus rhamnosus 4B15 (FGMC) and determined their biological implications. There was a significant increase in the antioxidative and anti-inflammatory activities of GMC with galactose, which were higher than those of GMC with glucose (GMC-glc). Furthermore, the fermentation of GMC by L. rha ...
DOI:
10.1021/acs.jafc.7b01339

9. Enzymatic Modification of Corn Starch Influences Human Fecal Fermentation Profiles

Author:
Dura, Angela; Rose, Devin J.; Rosell, Cristina M.
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4651-4657
ISSN:
0021-8561
Subject:
alpha-amylase; branched chain fatty acids; corn starch; cyclomaltodextrin glucanotransferase; digestibility; digestion; fermentation; gelatinization; humans; hydrolysis; ingredients; metabolites; microorganisms; modified starch; new products; nutrition labeling
Abstract:
... Enzymatically modified starches have been widely used in food applications to develop new products, but information regarding digestion and fecal fermentation of these products is sparse. The objective of this study was to determine the fermentation properties of corn starch modified with α-amylase, amyloglucosidase, or cyclodextrin glycosyltransferase and the possible role of hydrolysis products. ...
DOI:
10.1021/acs.jafc.7b01634

10. Expression and Characterization of Windmill Palm Tree (Trachycarpus fortunei) Peroxidase by Pichia pastoris

Author:
Wen, Boting; Baker, Margaret R.; Zhao, Hongwei; Cui, Zongjun; Li, Qing X.
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4676-4682
ISSN:
0021-8561
Subject:
Pichia pastoris; Trachycarpus fortunei; biosynthesis; genes; horseradish; hydrogen peroxide; leaves; markets; pH; peroxidase; polymers; salts; solvents; soybeans; substrate specificity; temperature; windmills
Abstract:
... Currently, commercial plant peroxidases are all native and are isolated from plants such as horseradish and soybean. No recombinant plant peroxidase products have been available on the commercial market. The gene encoding peroxidase was cloned from windmill palm tree leaves. The codon-optimized gene was transformed into Pichia pastoris for expression. The recombinant windmill palm tree peroxidase ...
DOI:
10.1021/acs.jafc.7b00318

11. Facile Synthesis of Novel Vanillin Derivatives Incorporating a Bis(2-hydroxyethyl)dithhioacetal Moiety as Antiviral Agents

Author:
Zhang, Jian; Zhao, Lei; Zhu, Chun; Wu, Zengxue; Zhang, Guoping; Gan, Xiuhai; Liu, Dengyue; Pan, Jianke; Song, Baoan
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4582-4588
ISSN:
0021-8561
Subject:
Cucumber mosaic virus; Potato virus Y; antiviral agents; bioassays; median effective concentration; moieties; vanillin
Abstract:
... A series of vanillin derivatives incorporating a bis(2-hydroxyethyl)dithioacetal moiety was designed and synthesized via a facile method. A plausible reaction pathway was proposed and verified by computational studies. Bioassay results demonstrated that target compounds possessed good to excellent activities against potato virus Y (PVY) and cucumber mosaic virus (CMV), of which, compound 6f incorp ...
DOI:
10.1021/acs.jafc.7b01035

12. Fermentative Production of Phenolic Glucosides by Escherichia coli with an Engineered Glucosyltransferase from Rhodiola sachalinensis

Author:
He, Qinglin; Yin, Hua; Jiang, Jingjie; Bai, Yanfen; Chen, Ning; Liu, Shaowei; Zhuang, Yibin; Liu, Tao
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4691-4697
ISSN:
0021-8561
Subject:
Escherichia coli; Rhodiola; alcohols; biotransformation; culture media; fermentation; fungi; glucosides; honokiol; mutants; rosmarinic acid; spectroscopy; xanthones
Abstract:
... Three rosmarinic acid analogs produced by recombinant Escherichia coli, two xanthones from fungi and honokiol from plants, were explored as the substrates of E. coli harboring a glucosyltransferase mutant UGT73B6FS to generate phenolic glucosides. Six new and two known compounds were isolated from the fermentation broth of the recombinant strain of the feeding experiments, and the compounds were i ...
DOI:
10.1021/acs.jafc.7b00981

13. Folate Biofortification in Hydroponically Cultivated Spinach by the Addition of Phenylalanine

Author:
Watanabe, Sho; Ohtani, Yuta; Tatsukami, Yohei; Aoki, Wataru; Amemiya, Takashi; Sukekiyo, Yasunori; Kubokawa, Seiichi; Ueda, Mitsuyoshi
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4605-4610
ISSN:
0021-8561
Subject:
Spinacia oleracea; adults; biofortification; biosynthesis; dietary recommendations; folic acid; food crops; genetic engineering; genetically modified foods; hydroponics; liquid chromatography; metabolic engineering; p-aminobenzoic acid; phenylalanine; sales; spinach; tandem mass spectrometry; vitamin B deficiency
Abstract:
... Folate is an important vitamin mainly ingested from vegetables, and folate deficiency causes various health problems. Recently, several studies demonstrated folate biofortification in plants or food crops by metabolic engineering through genetic modifications. However, the production and sales of genetically modified foods are under strict regulation. Here, we developed a new approach to achieve f ...
DOI:
10.1021/acs.jafc.7b01375

14. Gluten-Free Sources of Fermentable Extract: Effect of Temperature and Germination Time on Quality Attributes of Teff [Eragrostis tef (zucc.) Trotter] Malt and Wort

Author:
Di Ghionno, Lidia; Marconi, Ombretta; Lee, Eung Gwan; Rice, Christopher J.; Sileoni, Valeria; Perretti, Giuseppe
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4777-4785
ISSN:
0021-8561
Subject:
Eragrostis tef; arabinoxylan; beta-glucans; brewing; color; correlation; germination; gluten-free foods; malt; malting; pasting properties; raw materials; sugars; temperature; viscosity
Abstract:
... This study was conducted to evaluate the behavior of a white teff variety called Witkop during malting by using different parameters (germination temperature and duration) and to identify the best malting program. Samples were evaluated for standard quality malt and wort attributes, pasting characteristics, β-glucan and arabinoxylan content, and sugar profile. It was concluded that malting teff at ...
DOI:
10.1021/acs.jafc.7b01717

15. Identification and Quantification of Acylated Homoserine Lactones in Shewanella baltica, the Specific Spoilage Organism of Pseudosciaena crocea, by Ultrahigh-Performance Liquid Chromatography Coupled to Triple Quadrupole Mass Spectrometry

Author:
Wang, Yanbo; Zhang, Xiaoxiao; Wang, Chong; Fu, Linglin; Yi, Yangoa; Zhang, Yan
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4804-4810
ISSN:
0021-8561
Subject:
Gram-negative bacteria; Larimichthys crocea; Shewanella baltica; biofilm; food spoilage; homoserine; lactones; spoilage; statistical analysis; statistical models; tandem mass spectrometry; ultra-performance liquid chromatography
Abstract:
... Bacteria communicate with one another using chemical signal molecules called autoinducers, and the most prevalent autoinducers used by Gram-negative bacteria are N-acylated homoserine lactones (AHLs). However, AHLs are hardly detected in Shewanella baltica, the specific spoilage organism of Pseudosciaena crocea. In this study, we applied ultrahigh-performance liquid chromatography coupled to tripl ...
DOI:
10.1021/acs.jafc.7b01209

16. Inhibitory Effect of Piceatannol on TNF-α-Mediated Inflammation and Insulin Resistance in 3T3-L1 Adipocytes

Author:
Li, Yanfang; Yang, Puyu; Chang, Qimeng; Wang, Jing; Liu, Jie; Lv, Yuan; Wang, Thomas T. Y.; Gao, Boyan; Zhang, Yaqiong; Yu, Liangli Lucy
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4634-4641
ISSN:
0021-8561
Subject:
IKappaB kinase; adipocytes; adipose tissue; bioactive compounds; blueberries; chemokine CCL2; coculture; glucose; grapes; inflammation; insulin resistance; interleukin-6; macrophages; messenger RNA; mitogen-activated protein kinase; models; phosphorylation; signal transduction; transcription factor NF-kappa B; tumor necrosis factor-alpha
Abstract:
... Piceatannol, a bioactive component in grape and blueberry, was examined for its potential in decreasing the inflammatory activities in adipocytes using a cocultured adipocyte and macrophage system, and suppressing tumor necrosis factor-α (TNF-α)-mediated inflammation and the related insulin resistance using a 3T3-L1 adipocyte model. Piceatannol at 10 μM significantly reduced the release of inflamm ...
DOI:
10.1021/acs.jafc.7b01567

17. Matrix Effects and Interferences of Different Citrus Fruit Coextractives in Pesticide Residue Analysis Using Ultrahigh-Performance Liquid Chromatography–High-Resolution Mass Spectrometry

Author:
Besil, Natalia; Cesio, Veronica; Heinzen, Horacio; Ferandez-Alba, Amadeo R.
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4819-4829
ISSN:
0021-8561
Subject:
ethyl acetate; fatty acids; lemons; limonin; liquids; mandarins; mass spectrometry; naringin; oranges; pesticide residues; pesticides; principal component analysis; ultra-performance liquid chromatography
Abstract:
... The matrix effects of ethyl acetate extracts from seven different citrus fruits on the determination of 80 pesticide residues using liquid chromatography coupled to high-resolution time-of-flight mass spectrometry (UHPLC-(ESI)-HR-TOF) at 4 GHz resolution mode were studied. Only 20% of the evaluated pesticides showed noticeable matrix effects (ME) due to coelution with natural products between tR = ...
DOI:
10.1021/acs.jafc.7b00243

18. Metabolic Design of Corynebacterium glutamicum for Production of l-Cysteine with Consideration of Sulfur-Supplemented Animal Feed

Author:
Joo, Young-Chul; Heyon, Jeong Eun; Han, Sung Ok
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4698-4707
ISSN:
0021-8561
Subject:
Corynebacterium glutamicum; acid hydrolysis; cysteine; cysteine synthase; feed supplements; feeds; food production; gene overexpression; genes; humans; models; serine O-acetyltransferase; sulfides; transcription factors
Abstract:
... l-Cysteine is a valuable sulfur-containing amino acid widely used as a nutrition supplement in industrial food production, agriculture, and animal feed. However, this amino acid is mostly produced by acid hydrolysis and extraction from human or animal hairs. In this study, we constructed recombinant Corynebacterium glutamicum strains that overexpress combinatorial genes for l-cysteine production. ...
DOI:
10.1021/acs.jafc.7b01061

19. Metabolic Effect of 1-Deoxynojirimycin from Mulberry Leaves on db/db Diabetic Mice Using Liquid Chromatography–Mass Spectrometry Based Metabolomics

Author:
Hu, Xue-Qin; Thakur, Kiran; Chen, Gui-Hai; Hu, Fei; Zhang, Jian-Guo; Zhang, Hong-Bin; Wei, Zhao-Jun
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4658-4667
ISSN:
0021-8561
Subject:
amino acid metabolism; animal disease models; blood glucose; blood serum; cholesterol; creatinine; deformation; deoxynojirimycin; glucose; hepatocytes; histopathology; insulin; leaves; liquid chromatography; malondialdehyde; mass spectrometry; metabolites; metabolomics; mice; mulberries; nitrogen; noninsulin-dependent diabetes mellitus; triacylglycerols
Abstract:
... Metabolomics was applied to the liquid chromatography–mass spectrometry urinary metabolic profile of type 2 diabetes (T2DM) mice treated with mulberry 1-deoxynojirimycin (DNJ). The serum biochemical indicators related to T2DM like blood glucose, insulin, triglyceride, total cholesterol, nitrogen, malondialdehyde, and creatinine decreased significantly in the treated group. The histopathological ch ...
DOI:
10.1021/acs.jafc.7b01766

20. Microelectric Current Treatment Enhanced Biodegradation of Pumpkin Lignocelluloses by Trichoderma reesei RUT-C30

Author:
Yang, Rui; Liu, Yuqian; Zhou, Zhongkai; Sheng, Jiping; Meng, Demei
Source:
Journal of agricultural and food chemistry 2017 v.65 no.23 pp. 4668-4675
ISSN:
0021-8561
Subject:
Trichoderma reesei; arabinose; biodegradation; biotransformation; cellulose 1,4-beta-cellobiosidase; endo-1,4-beta-glucanase; fermentation; fructose; glucose; lignocellulose; lignocellulosic wastes; microbial growth; polygalacturonase; pumpkins; spores; xylanases; xylose
Abstract:
... A homemade microcurrent reactor was used to treat the fermentation of Trichoderma reesei. Results indicated that the yield of saccharides for T. reesei RUT-C30 cultivated in pumpkin lignocellulose broth reaches 38.86% (w/w) when a microcurrent treatment (20 mA, at the 48th hour for 60 min) was carried out, which is significantly higher than the control group (p < 0.05). Additionally, activities of ...
DOI:
10.1021/acs.jafc.7b00902