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9.586 Aktuelle Fachpublikationen in Journal of Agricultural and Food Chemistry

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Anthocyanin Management in Fruits by Fertilization

19.01.2018 | Mareike Jezek; Christian Zörb; Nikolaus Merkt; Christoph-Martin Geilfus, Journal of Agricultural and Food Chemistry, 2018

Anthocyanins are water-soluble vacuolar plant pigments that are mainly synthesized in epidermal layers and the flesh of fruits such as apples, cherries, grapes, and other berries. Because of their attractive red to purple coloration and their health-promoting potential, anthocyanins are ...

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Utilization of a Genome-Edited Tomato (Solanum lycopersicum) with High Gamma Aminobutyric Acid Content in Hybrid Breeding

19.01.2018 | Jeongeun Lee; Satoko Nonaka; Mariko Takayama; Hiroshi Ezura, Journal of Agricultural and Food Chemistry, 2018

γ-Aminobutyric acid (GABA) is a nonproteogenic amino acid with health-promoting functions. Although tomato fruits have a relatively high GABA content compared with other crops, levels must be further increased to effectively confer the health-promoting functions. In this study, we evaluated the ...

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An Efficient Strategy Based on Liquid–Liquid Extraction with Three-Phase Solvent System and High Speed Counter-Current Chromatography for Rapid Enrichment and Separation of Epimers of Minor Bufadienolide from Toad Meat

18.01.2018 | Denglang Zou; Xuelin Zhu; Fan Zhang; Yurong Du; Jianbin Ma; Renwang Jiang, Journal of Agricultural and Food Chemistry, 2018

This study presents an efficient strategy based on liquid–liquid extraction with three-phase solvent system and high speed counter-current chromatography for rapid enrichment and separation of epimers of minor bufadienolide from toad meat. The reflux extraction conditions were optimized by ...

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Characterization of the Structural and Colloidal Properties of α-Lactalbumin/Chitosan Complexes as a Function of Heating

18.01.2018 | Quanyang Li; Zhengtao Zhao, Journal of Agricultural and Food Chemistry, 2018

This research investigated the interaction between α-lactalbumin (α-la) and chitosan at different temperatures. Chitosan was added to α-la solution (5 g L–1) to achieve different α-la/chitosan ratios (8:1, 5:1, and 2:1), which were then subjected to different heating temperatures (20, 70, and 90 ...

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Evidence for the Initial Steps of DHA Biohydrogenation by Mixed Ruminal Microorganisms from Sheep Involves Formation of Conjugated Fatty Acids

18.01.2018 | Noelia Aldai; Pierluigi Delmonte; Susana P. Alves; Rui J. B. Bessa; John K. G. Kramer, Journal of Agricultural and Food Chemistry, 2018

Incubation of DHA with sheep rumen fluid resulted in 80% disappearance in 6 h. The products were analyzed as their fatty acid (FA) methyl esters by GC-FID on SP-2560 and SLB-IL111 columns. The GC-online reduction × GC and GC-MS techniques demonstrated that all DHA metabolites retained the C22 ...

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Immunomodulatory Activity of Docosahexenoic Acid on RAW264.7 Cells Activation through GPR120-Mediated Signaling Pathway

18.01.2018 | Lirong Han; Jun Yu; Yuanyuan Chen; Dai Cheng; Xu Wang; Chunling Wang, Journal of Agricultural and Food Chemistry, 2018

In this study, we elucidated the immunomodulatory activity of docosahexaenoic acid (DHA) on protein expression in RAW264.7 cells and its molecular mechanism. The results showed that the proliferation index of RAW264.7 cells at 48 h was about 173.03 ± 7.82% after the treatment of 2.4 μM DHA. DHA ...

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Whole Egg Consumption Exerts a Nephroprotective Effect in an Acute Rodent Model of Type 1 Diabetes

18.01.2018 | Cassondra J. Saande; Samantha K. Jones; Matthew J. Rowling; Kevin L. Schalinske, Journal of Agricultural and Food Chemistry, 2018

Nephropathy is a well-characterized complication of type 1 diabetes (T1D), resulting in proteinuria and urinary loss of micronutrients. We previously found that a whole egg-based diet maintained vitamin D balance in type 2 diabetic rats despite excessive urinary losses due to nephropathy. The ...

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Food Bioactives and Their Effects on Obesity-Accelerated Inflammatory Bowel Disease

17.01.2018 | Yi-Siou Chiou; Pei-Sheng Lee; Min-Hsiung Pan, Journal of Agricultural and Food Chemistry, 2018

Current views support the concept that obesity is linked to a worsening of the course of inflammatory bowel diseases (IBDs). Gut microbiota and adipose tissue macrophage (ATM) are considered key mediators or contributors in obesity-associated intestinal inflammation. Dietary components can have ...

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Uptake and Accumulation of Pharmaceuticals in Overhead- and Surface-Irrigated Greenhouse Lettuce

16.01.2018 | Gemini D. Bhalsod; Ya-Hui Chuang; Sangho Jeon; Wenjun Gui; Hui Li; Elliot T. Ryser; Andrey K. Guber; Wei Zhang, Journal of Agricultural and Food Chemistry, 2018

Understanding the uptake and accumulation of pharmaceuticals in vegetables under typical irrigation practices is critical to risk assessment of crop irrigation with reclaimed water. This study investigated the pharmaceutical residues in greenhouse lettuce under overhead and soil-surface ...

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Activity-Guided Identification of in Vitro Antioxidants in Beer

16.01.2018 | Stefan Spreng; Thomas Hofmann, Journal of Agricultural and Food Chemistry, 2018

In order to locate the key antioxidants contributing to oxidative stability of beer, activity-guided fractionation in combination with the oxygen radical absorbance capacity (ORAC) assay, hydrogen peroxide scavenging (HPS) assay, and linoleic acid (LA) assay was applied to a pilsner-type beer. ...

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