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505 results for “apples”
Fig. 1 in Formation and exudation of biphenyl and dibenzofuran phytoalexins by roots of the apple rootstock M26 grown in apple replant disease soil
Fig. 1. GC-MS chromatogram for detection and quantification of biphenyl and dibenzofuran phytoalexins in roots of the apple rootstock M26. IS, internal standard for relative quantification of biphenyls and dibenzofurans. Numbers above the chemical structures refer to the compound numbers in Table 1. Compounds whose peaks are labeled by stars of the same color have identical molecular masses (labeled below the structures). Their deduced general structures are labeled by stars of the corresponding colors.
Fig. 3 in Formation and exudation of biphenyl and dibenzofuran phytoalexins by roots of the apple rootstock M26 grown in apple replant disease soil
Fig. 3. Heatmaps of total phytoalexins and phytoalexin exudation rates determined in three types of experiments. Red to green represents low to high values. #, not detected; blank, value lower than threshold (10 μg g 1 dry wt).
Fig. 4 in Formation and exudation of biphenyl and dibenzofuran phytoalexins by roots of the apple rootstock M26 grown in apple replant disease soil
Fig. 4. Established pathway of aucuparin biosynthesis and proposed pathway of dibenzofuran biosynthesis. Enzymes previously characterized are indicated in blue and enzymes not yet detected are marked in red. Solid and broken arrows represent experimentally proved and proposed reactions, respectively. BIS, biphenyl synthase; B4H, biphenyl-4-hydroxylase; OMT, O-methyltransferase; CYP_H, cytochrome P450 hydroxylase; CYP_C, cytochrome p450 cyclase.
Fig. 4. 1H in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 4. 1H NMR spectra (400 MHz, D O) of a crab apple extract fraction (I) and sucrose (II). The circled signal was consistent with the anomeric proton of a β-AAG.
Fig. 7 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 7. Acetylation of 2 under basic conditions gave the unsaturated glycoside 8, but acidic conditions led to the successful acetylation of both 2 and 2a. I. Ac2O, pyridine, 0 ̊C, overnight, 44%. II. Ac2O, HClO4, 0 ̊C, 1 h, 71% (9) and 73% (9a) yield.
Fig. 1 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 1. Structures of AA (1) and the only known naturally occurring derivatives in plants, 2-O-β-D-glucopyranosyl L-ascorbic acid (2) and 6-O-β-D-glucopyranosyl L-ascorbic acid (3). Synthetic 2-O-α-D-glucopyranosyl L-ascorbic acid (4) is commonly used in cosmetic products.
Fig. 2 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 2. Left: PCA (Pareto scaling with 95% confidence interval) of the LC-MS analyses of extracts from four fruit of each of nine apple accessions: green triangles = M. sylvestris, red circles = M. domestica, purple Xs = M. sieversii. Right: PCA of molecular features showing that M. domestica accessions were characterised by polyphenols (red), M. sieversii by fatty acids (blue) and M. sylvestris by dihydrochalcones (green). A molecular feature tentatively identified as an ascorbyl glycoside (top left) was also associated with two M. sylvestris accessions. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 3 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 3. LC-MS chromatograms (Instrument B, method I) of crab apple extract, commercial 2-O-α-D-glucopyranosyl L-ascorbic (4), and two AAGs produced by chemical synthesis, 2-O-β-D-glucopyranosyl L-ascorbic (2) and 2-O-β-D-galactopyranosyl L-ascorbic (2a). The traces are extracted ion chromatograms for m/z 337 [M – H]-. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 9 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 9. LC-MS (Instrument B, method II) extracted ion chromatograms for m/z 655, [M + Na]+, of acetylated AAGs 9 (red, 7.0 min) and 9a (green, 8.1 min), and acetylated and purified crab apple AAG (blue, 7.0 min). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 8 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 8. The downfield regions of the 1H NMR spectra for acetylated ascorbyl glycosides (structures in Fig. 7.). I. Peracetyl galactoside 9a, II. Acetylated and purified ascorbyl glycoside from crab apples, III. Peracetyl glucoside 9.
Fig. 6. 1 H in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
Fig. 6. 1 H NMR spectra of β-glucoside 2 in D O (400 MHz) demonstrating the effect of pH on proton resonances 1′-H and 4-H. Top: one drop of 2 M NaOH added to 2 NMR tube; middle: nothing added; bottom: one drop of conc. HCl added to NMR tube.
Evaluation of the Healthy Apple Program in San Francisco
ClinicalTrials.gov study NCT02799433. IPD Sharing: NO. Countries: 1. Publications: 2.
The Effects of Apple Derived Flavanols on Cardiovascular Disease Risk (FLAVASCULAR Study)
ClinicalTrials.gov study NCT02013856. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Augmented Reality BCI Longitudinal Study for Persons With ALS, Stroke, TBI and SCI Utilizing Cognixion + Apple Vision Pro
ClinicalTrials.gov study NCT07209943. IPD Sharing: YES. Countries: 1. Publications: 2.
Effect of an Apple Polyphenol Extract on Brachial Artery Flow-mediated Vasodilatory Function
ClinicalTrials.gov study NCT01690676. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Apple-CPET Ted Rogers Understanding Exacerbations of Heart Failure
ClinicalTrials.gov study NCT05008692. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Effect of Apple Polyphenols on Vascular Oxidative Stress and Endothelium Function Study (APP trial_2016)
ClinicalTrials.gov study NCT03053986. IPD Sharing: UNDECIDED. Countries: 1. Publications: 1.
Evaluation of Efficacy of a Cashew Apple Extract on Weight Management and Associated Metabolic Risk Factors in Overweight/Obese Volunteers
ClinicalTrials.gov study NCT02493140. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Apple Hearing Study
ClinicalTrials.gov study NCT04172766. IPD Sharing: NO. Countries: 1. Publications: 1.
Study to Test Efficacy of Real-time Reminders on Apple Watch To Decrease Late or Missed Meal Boluses
ClinicalTrials.gov study NCT03809858. IPD Sharing: NO. Countries: 1. Publications: 4.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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International Brain Laboratory public data
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OpenNeuro
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