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Journal articles on the topic 'DL-phenylalanine'

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Published: 4 June 2021

Last updated: 2 February 2022

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1

Kanazawa, H., H. Uekusa, and Y. Ohashi. "N-Carboxy-DL-phenylalanine Anhydride." Acta Crystallographica Section C Crystal Structure Communications 53, no. 8 (August 15, 1997): 1154–56. http://dx.doi.org/10.1107/s0108270197004010.

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2

Chen, Jiao Jiao, Lin Jiang, Yi Ping Zhao, Qing Song Zhang, and Li Chen. "Chiral Recognizable Properties of Thermosensitive Poly(NIPA-co-NALPE) Hydrogels." Advanced Materials Research 160-162 (November 2010): 13–18. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.13.

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A serious of poly(NIPA-co-NALPE) hydrogels containing chiral group (L-Phenylalanine ethyl ester) were prepared by copolymerization of N-isopropylacrylamide(NIPA) and acrylic acid derivatived L-Phenylalanine ethyl ester (NALPE) in ethanol with different feed ratios. The kinetics adsorption approach, isothermal adsorption and chiral separation experiment of hydrogels on D/L-phenylalanine were investigated, and the results showed that the chiral hydrogels exhibited enantioselectivity for D/L-phenylalanine and the absorption capability increased with the rising temperature and increasing contents of NALPE due to the temperature-sensitive NIPA molecular chains and the chiral monomer NALPE, respectively. Furthermore, the poly(NIPA-co-NALPE) hydrogels were also used to separate DL-alanine and DL-tartaric acid, which suggested that the gels are also applicable to other chiral molecules besides DL-phenylalanine and have potential applications in separation of chiral drugs.

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3

Raja, A. Sahaya, S. Rajendran, and P. Satyabama. "Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+System." Journal of Chemistry 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/720965.

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The environmental friendly inhibitor system DL-phenylalanine-Zn2+has been investigated by weight loss method. A synergistic effect exists between DL-phenylalanine and Zn2+system. The formulation consisting of 150 ppm of DL-phenylalanine and 5 ppm of Zn2+offers good inhibition efficiency of 90%. Polarization study reveals that this formulation functions as a anodic inhibitor. AC impedance spectra reveal that a protective film is formed on the metal surface. The surface morphology has been analysed by SEM and EDAX. A suitable mechanism of corrosion inhibition is proposed based on the results obtained from weight loss study and electrochemical studies.

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4

Kim, In-Ho, Ji-Young Shin, Dae-Seok Han, Yong-Kon Park, Young-Eon Kim, and Chang-Ho Lee. "Processing Properties of DL-Phenylalanine in Aqueous Solution." Journal of the Korean Society of Food Science and Nutrition 36, no. 2 (February 28, 2007): 246–49. http://dx.doi.org/10.3746/jkfn.2007.36.2.246.

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5

Wood, David R., Fred W. Reimherr, and Paul H. Wender. "Treatment of attention deficit disorder with DL-phenylalanine." Psychiatry Research 16, no. 1 (September 1985): 21–26. http://dx.doi.org/10.1016/0165-1781(85)90024-1.

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6

Isoyama, M., T. Fukuhara, M. Tanaka, A. Shimada, and S. Yuasa. "Radiochromatographic resolution of [14C]DL-tryptophan, [14C]DL-phenylalanine and [35S]DL-methionine on a cellulose column." International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes 40, no. 4 (January 1989): 285–89. http://dx.doi.org/10.1016/0883-2889(89)90219-0.

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7

Pickering, P. J., and J. B. Chaudhuri. "Enantioselective extraction of (d)-phenylalanine from racemic (dl)-phenylalanine using chiral emulsion liquid membranes." Journal of Membrane Science 127, no. 2 (May 1997): 115–30. http://dx.doi.org/10.1016/s0376-7388(96)00255-4.

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8

Hossain, Aslam, Sanjay Roy, Srabani Ghosh, Samiran Mondal, and Bijoy Krishna Dolui. "Solubility of dl-serine and dl-phenylalanine in aqueous mixtures of dimethyl sulfoxide and solvation thermodynamics." RSC Advances 5, no. 85 (2015): 69839–47. http://dx.doi.org/10.1039/c5ra12403d.

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9

Gallardo, P., J. L. Manzano, E. García, E. Rodríguez, and J. Soria. "Preparation and study of esterified substitutes of dl-phenylalanine and dl-valine copper complexes." Inorganica Chimica Acta 233, no. 1-2 (May 1995): 155–59. http://dx.doi.org/10.1016/0020-1693(94)04445-2.

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10

Salgın, Sema, Seda Öner, and Uğur Salgın. "Separation of DL-Phenylalanine by Chiral Selector‐Supported Ultrafiltration." Journal of Chemical Engineering Research Updates 6, no. 1 (December 25, 2019): 18–23. http://dx.doi.org/10.15377/2409-983x.2019.06.3.

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11

Park, Ki Chul. "A High-Yield Synthesis of 4-Borono-dl-phenylalanine." Synthesis 1999, no. 12 (December 1999): 2041–44. http://dx.doi.org/10.1055/s-1999-3624.

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12

Biolo, G., P. Tessari, S. Inchiostro, D. Bruttomesso, L. Sabadin, C. Fongher, G. Panebianco, M. G. Fratton, and A. Tiengo. "Fasting and postmeal phenylalanine metabolism in mild type 2 diabetes." American Journal of Physiology-Endocrinology and Metabolism 263, no. 5 (November 1, 1992): E877—E883. http://dx.doi.org/10.1152/ajpendo.1992.263.5.e877.

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We have investigated postabsorptive and postprandial phenylalanine kinetics in non-obese type 2 diabetic patients [non-insulin-dependent diabetes mellitus (NIDDM)], using a double-isotope technique and the constant oral administration of a synthetic mixed meal. Fasting and postmeal glucose levels were increased (P < 0.01) in NIDDM (165 +/- 16 to 226 +/- 24 mg/dl), with respect to normal controls (85 +/- 3 to 102 +/- 6 mg/dl). Fasting insulin concentrations were comparable in NIDDM (13 +/- 2 microU/ml) and in normals (12 +/- 2 microU/ml), but after the meal it increased less (P < 0.07) in NIDDM vs. normals (to 36 +/- 5 vs. 56 +/- 12 microU/ml, respectively; P < 0.01 vs. basal for both). Postabsorptive phenylalanine rate of appearance (R(a)) in NIDDM (0.63 +/- 0.08 mumol.kg-1 x min-1) was comparable to that of controls (0.73 +/- 0.05 mumol.kg-1 x min-1, not significant). During the meal, total and endogenous phenylalanine R(a), splanchnic uptake, oxidation, and nonoxidative disposal of the ingested phenylalanine were also comparable in the two groups. These data indicate that fasting and postprandial kinetics of the essential amino acid phenylalanine are normal in NIDDM.

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13

Zhao, Rong, Peijiang Guo, Junyu Dong, Xiaoping Zhang, Xiaofei Sun, Yun Tian, and Qingle Zeng. "ChemInform Abstract: Synthesis of 2-Amino-1-indanone from DL-Phenylalanine." ChemInform 43, no. 3 (December 22, 2011): no. http://dx.doi.org/10.1002/chin.201203076.

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14

Ramachandran, E., and S. Natarajan. "XRD, thermal and FTIR studies on gel grown DL-Phenylalanine crystals." Crystal Research and Technology 42, no. 6 (June 2007): 617–20. http://dx.doi.org/10.1002/crat.200610873.

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15

Stankowska, J., E. Peter, and M. Trybula. "Dielectric Properties of Triglycine Sulphate Crystals Admixtured With D- and DL-Phenylalanine." Acta Physica Polonica A 97, no. 6 (June 2000): 1061–72. http://dx.doi.org/10.12693/aphyspola.97.1061.

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16

Liu, Baohong, Yumin Cui, and Jiaqi Deng. "Studies on Microbial Biosensor for DL-Phenylalanine and Its Dynamic Response Process." Analytical Letters 29, no. 9 (July 1996): 1497–515. http://dx.doi.org/10.1080/00032719608001500.

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17

Roy, Sanjay, Samiran Mondal, and Bijoy Krishna Dolui. "Solvation Thermodynamics of DL-Phenylalanine in Aqueous NaNO3 Solution at 298.15 K." Russian Journal of Physical Chemistry A 92, no. 4 (April 2018): 734–38. http://dx.doi.org/10.1134/s003602441804026x.

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18

Mozrzymas, Renata, Dariusz Walkowiak, Sławomira Drzymała-Czyż, Patrycja Krzyżanowska-Jankowska, Monika Duś-Żuchowska, Łukasz Kałużny, and Jarosław Walkowiak. "Vitamin K Status in Adherent and Non-Adherent Patients with Phenylketonuria: A Cross-Sectional Study." Nutrients 12, no. 6 (June 14, 2020): 1772. http://dx.doi.org/10.3390/nu12061772.

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This is the first study to evaluate vitamin K status in relation to dietary intake and phenylalanine dietary compliance in patients with phenylketonuria (PKU). The dietary and PKU formula intake of vitamin K was calculated in 34 PKU patients, with vitamin K status determined by the measurement of prothrombin induced by vitamin K absence (PIVKA-II). Blood phenylalanine concentrations in the preceding 12 months were considered. There were significantly more phenylalanine results exceeding 6 mg/dL in patients with normal PIVKA-II concentrations than in those with abnormal PIVKA-II levels (p = 0.035). Similarly, a higher total intake of vitamin K and dietary vitamin intake expressed as μg/day (p = 0.033 for both) and %RDA (p = 0.0002 and p = 0.003, respectively) was observed in patients with normal PIVKA-II levels. Abnormal PIVKA-II concentrations were associated with a lower OR (0.1607; 95%CI: 0.0273–0.9445, p = 0.043) of having a median phenylalanine concentration higher than 6 mg/dL. In conclusion, vitamin K deficiency is not uncommon in phenylketonuria and may also occur in patients with adequate vitamin K intake. PKU patients with better dietary compliance have a higher risk of vitamin K deficiency. The present findings highlight the need for further studies to re-evaluate dietary recommendations regarding vitamin K intake, both concerning formula-based and dietary consumption of natural products.

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19

Duddeck, Helmut, Monika Hiegemann, Mario F. Simeonov, Biserka Kojic-Prodic, Biljana Nigovic, and Volker Magnus. "Conformational Study of Some Amino Acid Conjugates of Indol-3-yl-acetic Acid (IAA) by 1H-NOE-Difference Spectroscopy. Structure/Auxin Activity Relationships." Zeitschrift für Naturforschung C 44, no. 7-8 (August 1, 1989): 543–54. http://dx.doi.org/10.1515/znc-1989-7-801.

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Abstract Amino Acid Conjugates The conform ation of the side chain of indol-3-yl-acetic acid conjugates with am ino acids (L-alanine, glycine, L-i-leucine, L-a-aminobutyric acid, DL-aspartic acid, DL-phenylalanine, and 6-am inovaleric acid) has been studied by 1H -NMR -NOE -difference spectroscopy. Com parison with the conform ation in the solid state is given in the light of structure-activity relationships.

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20

Euverink, G. J. W., D. J. Wolters, and L. Dijkhuizen. "Prephenate dehydratase of the actinomycete Amycolatopsis methanolica: purification and characterization of wild-type and deregulated mutant proteins." Biochemical Journal 308, no. 1 (May 15, 1995): 313–20. http://dx.doi.org/10.1042/bj3080313.

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Prephenate dehydratase (PDT) is a key regulatory enzyme in L-phenylalanine biosynthesis in the Gram-positive bacterium Amycolatopsis methanolica. The PDT protein was purified to homogeneity (1957-fold) from wild-type cells with a final yield of 6.5%. It was characterized as a 150 kDa homotetrameric protein with a subunit size of 34 kDa. The first 35 N-terminal amino acids were identified, revealing highest similarity to the PDT proteins from Corynebacterium glutamicum and Bacillus subtilis. Kinetic studies showed that the A. methanolica PDT is allosterically inhibited by phenylalanine and activated by tyrosine. Phenylalanine caused an increase in the S0.5 for prephenate and a decrease in the Vmax. Tyrosine caused a decrease in the S0.5 for prephenate and an increase in the Vmax. Spontaneous o-fluoro- and p-fluoro-DL-phenylalanine-resistant mutants of A. methanolica were isolated. Kinetic studies with the partially purified PDT proteins of strains pFPhe32 and oFPhe84 showed that these mutant proteins had become (partly) insensitive to both phenylalanine inhibition and tyrosine activation.

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21

Kanazawa, Hitoshi, and Yuji Ohashi. "Polymerization of N-Carboxy Anhydrides of L- and DL- Valine, and L- and DL- Phenylalanine in the Solid State." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 277, no. 1 (February 1996): 45–54. http://dx.doi.org/10.1080/10587259608046002.

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22

Sarı, Nurşen, and Perihan Gürkan. "Some Novel Amino Acid-Schiff Bases and their Complexes Synthesis, Characterization, Solid State Conductivity Behaviors and Potentiometric Studies." Zeitschrift für Naturforschung B 59, no. 6 (June 1, 2004): 692–98. http://dx.doi.org/10.1515/znb-2004-0610.

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Three new Schiff bases derived from the condensation reaction of thiophene-2-carbaldehyde and DL-alanine, DL-valine and DL-phenylalanine have been synthesized and their Co(II), Ni(II) and Cu(II) complexes have been prepared. The Schiff bases and the complexes have been characterized by their analytical and spectral data. The protonation constants of the Schiff bases and stability constants of the complexes have been determined potentiometrically in aqueous medium at 25 °C and 0.1 M KCl ionic strength. Solid state conductivities of the synthesized substances were using the four-probe technique on a compressed pellet at room temperature.

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23

Lee, Sang Hak, Anil H. Gore, Taslima Ferdous, Seikh Mafiz Alam, and Govind B. Kolekar. "Micellar-mediated binding interaction between perylene and dl-phenylalanine: Insights from spectroscopic investigations." Journal of Molecular Liquids 168 (April 2012): 12–16. http://dx.doi.org/10.1016/j.molliq.2012.01.002.

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24

Yugeng, Zhang, and Zhao Guiwen. "Photoacoustic Spectroscopy Studies on DL-β-Phenylalanine and Pd(Phe)2·H2O Complex." Spectroscopy Letters 26, no. 9 (November 1993): 1595–601. http://dx.doi.org/10.1080/00387019308010759.

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25

STRÖMNAES, ÖISTEIN. "GENETIC CHANGES IN SACCHAROMYCES CEREVISIAE GROWN ON MEDIA CONTAINING DL-PARA-FLUORO-PHENYLALANINE." Hereditas 59, no. 2-3 (September 2, 2009): 197–220. http://dx.doi.org/10.1111/j.1601-5223.1968.tb02171.x.

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26

Tylek-Lemañska, D., M. Otarzewski, and E. Kostyk. "Measurement of phenylalanine in blood on filter paper as a method of monitoring PKU treatment." Journal of Medical Screening 9, no. 2 (June 1, 2002): 64–66. http://dx.doi.org/10.1136/jms.9.2.64.

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OBJECTIVES: Phenylketonuria (PKU) is a genetic disease with autosomal recessive inheritance. In Poland the microbiological Guthrie test for this disease was replaced by an enzymatic colorimetric test. The question is whether the colorimetric test might be used in monitoring treatment of PKU. SETTING: In 80 patients with PKU on routine treatment monitoring of serum phenylalanine concentrations (SPh) was compared with phenylalanine concentrations in blood on filter paper (PhBFP). METHODS: Measurements of SPh were by a fluorimetric method (McCaman and Robins), and those of PhBFP were by an enzymatic colorimetric method. RESULTS: The regression analysis of SPh compared with PhBFP gave the equation y=0.9219x+0.2389; for the reversed ratio: it gave y=1.0220x+0.55083. The correlation was 0.97 at p<0.05. DISCUSSION: Concentrations of SPh accepted for children with PKU are not uniform. In the Cracow centre, the range of accepted SPh concentrations are 2–6 mg/dl for children and <12 mg/dl for older patients. The concentrations of PhBFP accepted are somewhat higher than SPh, range from 4 to 10 mg/dl, and are a good indicator of an appropriate diet. CONCLUSIONS: (1) The comparison indicated that colorimetric measurements of PhBFP are effective in monitoring therapeutic PKU management. Tests can be performed more often and are more comfortable both for the patients and their parents. (2) The comparative results indicated a concentration of PhBFP ranging from 4 to 10 mg/dl to be the accepted value for children treated for PKU.

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27

Ghosh, Srabani, Samiran Mondal, Sanjay Roy, Soumen Saha, Dushila Subba, and Bijoy Krishna Dolui. "Evaluation and correlation of solubility and solvation energetics of DL-phenylalanine and DL-serine in water and aqueous ethylene glycol solutions." Journal of Molecular Liquids 249 (January 2018): 659–65. http://dx.doi.org/10.1016/j.molliq.2017.11.084.

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28

BAI, YANG, HAN-MING WANG, MING LIU, YUN WANG, GUO-CHAO LIAN, XIN-HUA ZHANG, JIAN KANG, and HUAI-LIANG WANG. "4-Chloro-DL-phenylalanine protects against monocrotaline-induced pulmonary vascular remodeling and lung inflammation." International Journal of Molecular Medicine 33, no. 2 (December 16, 2013): 373–82. http://dx.doi.org/10.3892/ijmm.2013.1591.

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29

Srikrishnan, T., V. Ravichandran, and K. K. Chacko. "Conformation of methylated amino acids: structure of 3,4-dimethoxy-α-methyl-DL-phenylalanine sesquihydrate." Acta Crystallographica Section C Crystal Structure Communications 44, no. 5 (May 15, 1988): 847–50. http://dx.doi.org/10.1107/s0108270187011260.

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30

Diamond, A. "Phenylalanine levels of 6-10mg/dl may not be as benign as once thought." Acta Paediatrica 83, s407 (December 1994): 89–91. http://dx.doi.org/10.1111/j.1651-2227.1994.tb13462.x.

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31

MIYAZAKI, Hideya, Tadashi SHIRAIWA, and Hidemoto KUROKAWA. "Optical resolution of pentylammonium salt of N-acetyl-DL-phenylalanine by preferential crystallization procedure." NIPPON KAGAKU KAISHI, no. 1 (1986): 87–89. http://dx.doi.org/10.1246/nikkashi.1986.87.

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32

Manzano, J. L., P. Márquez, E. Rodríguez, and D. Sánchez. "Study of l-alanine and dl-phenylalanine Schiff bases and their copper(II) complexes." Journal of Inorganic Biochemistry 43, no. 2-3 (August 1991): 228. http://dx.doi.org/10.1016/0162-0134(91)84220-4.

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33

Chen, Zilin, Jin-Ming Lin, Katsumi Uchiyama, and Toshiyuki Hobo. "Simultaneous separation of o-, m-, p-fluoro-dl-phenylalanine and o-, m-, p-dl-tyrosine by ligand-exchange micellar electrokinetic capillary chromatography." Journal of Chromatography A 813, no. 2 (July 1998): 369–78. http://dx.doi.org/10.1016/s0021-9673(98)00350-1.

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34

Paddon-Jones, Douglas, Melinda Sheffield-Moore, Daniel L. Creson, Arthur P. Sanford, Steven E. Wolf, Robert R. Wolfe, and Arny A. Ferrando. "Hypercortisolemia alters muscle protein anabolism following ingestion of essential amino acids." American Journal of Physiology-Endocrinology and Metabolism 284, no. 5 (May 1, 2003): E946—E953. http://dx.doi.org/10.1152/ajpendo.00397.2002.

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Debilitating injury is accompanied by hypercortisolemia, muscle wasting, and disruption of the normal anabolic response to food. We sought to determine whether acute hypercortisolemia alters muscle protein metabolism following ingestion of a potent anabolic stimulus: essential amino acids (EAA). A 27-h infusion (80 μg · kg−1 · h−1) of hydrocortisone sodium succinate mimicked cortisol (C) levels accompanying severe injury (>30 μg/dl), (C + AA; n = 6). The control group (AA) received intravenous saline ( n = 6). Femoral arteriovenous blood samples and muscle biopsies were obtained during a primed (2.0 μmol/kg) constant infusion (0.05 μmol · kg−1 · min−1) ofl-[ ring-2H5]phenylalanine before and after ingestion of 15 g of EAA. Hypercortisolemia [36.5 ± 2.1 (C + AA) vs. 9.0 ± 1.0 μg/dl (AA)] increased postabsorptive arterial, venous, and muscle intracellular phenylalanine concentrations. Hypercortisolemia also increased postabsorptive and post-EAA insulin concentrations. Net protein balance was blunted (40% lower) following EAA ingestion but remained positive for a greater period of time (60 vs. 180 min) in the C + AA group. Thus, although differences in protein metabolism were evident, EAA ingestion improved muscle protein anabolism during acute hypercortisolemia and may help minimize muscle loss following debilitating injury.

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35

Wang, Shuai-Shuai, Fang Zou, Wen-Qi Meng, Jing-Zheng Zhang, Yan Feng, Ling Zhang, and Yi Liu. "Chemical Resolution of Dl-Phenylalanine Methyl Ester Using N-Acetyl-D-Phenylglycine as Resolving Agent." Journal of Chemical Research 39, no. 3 (April 2015): 159–61. http://dx.doi.org/10.3184/174751915x14239976403372.

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36

Bayle-Lacoste, Mireille, Jean Moulines, Noël Collignon, Abdelkader Boumekouez, Eliane de Tinguy-Moreaud, and Eugéne Neuzil. "Synthesis of 4-phosphono- and of 4-(phosphonomethyl)-dl-phenylalanine, two analogues of O-phosphotyrosine." Tetrahedron 46, no. 23 (January 1990): 7793–802. http://dx.doi.org/10.1016/s0040-4020(01)90076-6.

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37

Venkatesh, Sheetal, Pushpa Kumari Yadav, Minal Govind Kolambe, and M. M. V. Ramana. "Ionic liquid crystals derived from dl-Phenylalanine: Mesomorphism, optical behavior and evaluation of toxicological profile." Journal of Molecular Liquids 289 (September 2019): 111061. http://dx.doi.org/10.1016/j.molliq.2019.111061.

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38

Bridiau, Nicolas, Sandrine Cabanel, and Thierry Maugard. "Facile synthesis of pseudo-C-glycosyl p-amino-dl-phenylalanine building blocks via Amadori rearrangement." Tetrahedron 65, no. 2 (January 2009): 531–35. http://dx.doi.org/10.1016/j.tet.2008.10.104.

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39

Hollunger, Gunnar, and Sven-Åke Persson. "The Formation in Vivo of 3,4-Dihydroxyphenylalanine (DOPA) from 3-Hydroxy-DL-phenylalanine (m-Tyrosine)." Acta Pharmacologica et Toxicologica 34, no. 5 (March 13, 2009): 391–98. http://dx.doi.org/10.1111/j.1600-0773.1974.tb03535.x.

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40

De Pooter, H., Haider Ali, and C. P. van Sumere. "N-Acylamino Acids and Peptides II. The Synthesis of N-Feruloylglycyl-[l and DL]-Phenylalanine." Bulletin des Sociétés Chimiques Belges 82, no. 3-4 (September 2, 2010): 259–69. http://dx.doi.org/10.1002/bscb.19730820308.

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41

Gong, Xiangyu, Erzheng Su, Pixiang Wang, and Dongzhi Wei. "Alcaligenes faecalis penicillin G acylase-catalyzed enantioselective acylation of dl-phenylalanine and derivatives in aqueous medium." Tetrahedron Letters 52, no. 41 (October 2011): 5398–402. http://dx.doi.org/10.1016/j.tetlet.2011.08.056.

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42

Oki, Hisaya, Masami Enomae, and Yoshitake Yoshimura. "The Possibility of the Optical Resolution of DL-Phenylalanine by [Cr(L-phe)2(NCS)(OH2)]." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 19, no. 10 (December 1989): 1085–91. http://dx.doi.org/10.1080/00945718908048118.

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43

Shiraiwa, Tadashi, Hideya Miyazaki, Yoshihiro Sakamoto, and Hidemoto Kurokawa. "Racemic Structures and Optical Resolutions by Preferential Crystallization of Organic Ammonium Salts ofN-Formyl-DL-phenylalanine." Bulletin of the Chemical Society of Japan 59, no. 7 (July 1986): 2331–34. http://dx.doi.org/10.1246/bcsj.59.2331.

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44

Hareesha, N., and J. G. Manjunatha. "Fast and enhanced electrochemical sensing of dopamine at cost-effective poly(DL-phenylalanine) based graphite electrode." Journal of Electroanalytical Chemistry 878 (December 2020): 114533. http://dx.doi.org/10.1016/j.jelechem.2020.114533.

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45

Otani, Theodore T., and Mary R. Briley. "Structure–Activity Relationships Among Substituted N–Benzoyl Derivatives of Phenylalanine and Its Analogues in a Microbial Antitumor Prescreen III: Derivatives of p-Fluoro-DL-Phenylalanine." Journal of Pharmaceutical Sciences 74, no. 1 (January 1985): 40–43. http://dx.doi.org/10.1002/jps.2600740111.

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46

Fernández-Fígares, I., C. Prieto, R. Nieto, and J. F. Aguilera. "Free amino acid concentrations in plasma, muscle and liver as indirect measures of protein adequacy in growing chickens." Animal Science 64, no. 3 (June 1997): 529–39. http://dx.doi.org/10.1017/s1357729800016167.

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AbstractAn experiment was carried out to study the effect of changes in either the quality or the quantity of dietary protein intake on the free essential amino acid profiles in plasma, muscle or liver of growing chickens. Following a randomized paired-feeding design based on metabolic body weight (kg M0·75), White Rock male broilers were allocated to one of three isoenergetic (14·5 kJ metabolizable energy per g dry matter (DM)) semisynthetic diets containing different levels of protein (60, 120, 180 or 240 g/kg DM). All diets were based on soya-bean meal, as the sole source of protein, either unsupplemented (diets S) or supplemented with 20 g/kg L-lysine (diets SL) or 2 g/kg DL-methionine (diets SM). Samples of blood, biceps muscle and liver were taken and amino acid analysis was determined by high performance liquid chromatography. Plasma was only adequate to detect the effect of the supplementation with methionine to balance the dietary amino acid (AA) profile. Plasma concentrations of free methionine significantly increased as a result of the supplementation with methionine (P < 0·001) and remained unaffected by the amount of protein ingested. When lysine was added to diets S to induce an AA imbalance, a significant increase in muscle concentrations of free valine, isoleucine and phenylalanine (P <0·05) and a significant decrease in liver concentrations of free arginine and phenylalanine were observed (P<0·05). The supplementation with DL-methionine gave rise to a significant fall in the concentrations of free histidine, glycine and threonine (P < 0·05) and increased those of isoleucine and methionine in the skeletal muscle (P < 0·05), while in liver it significantly lowered the concentrations of free arginine, valine, leucine, phenylalanine and methionine (P < 0·001 to P < 0·05) and raised that of free glycine (P < 0·001). The ratios lysine: phenylalanine, lysine: valine and methionine: glycine in muscle together with that of methionine: glycine in liver seem to be appropriate indexes of the adequacy of the dietary AA profile to requirements.

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Tornieporth-Oetting, Inis C., and Peter S. White. "Ionic Titanocene(IV) .alpha.-Amino Acid Complexes of DL-Phenylalanine and DL-4-Fluorophenylalanine: Synthesis, Characterization, and Investigation of the Antimicrobial Behavior toward Escherichia coli." Organometallics 14, no. 4 (April 1995): 1632–36. http://dx.doi.org/10.1021/om00004a017.

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Rajkumar, Beulah J. M., and V. Ramakrishnan. "Infrared and laser Raman studies of l-phenylalanine l-phenylalaninium perchlorate and bis(dl-phenylalaninium) sulphate monohydrate." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 58, no. 9 (July 2002): 1923–34. http://dx.doi.org/10.1016/s1386-1425(01)00641-2.

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BAYLE-LACOSTE, M., J. MOULINES, N. COLLIGNON, A. BOUMEKOUEZ, E. DE TINGUY-MOREAUD, and E. NEUZIL. "ChemInform Abstract: Synthesis of 4-Phosphono- and of 4-(Phosphonomethyl)-DL-phenylalanine, Two Analogues of O-Phosphotyrosine." ChemInform 22, no. 9 (August 23, 2010): no. http://dx.doi.org/10.1002/chin.199109316.

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SHIRAIWA, Tadashi, Yujin SADO, Keiji SAKAGUCHI, Akihiko IKAWA, and Hidemoto KUROKAWA. "Optical resolutions of DL-amino acids with hydrophobic side chain by formation of adduct with L-phenylalanine." NIPPON KAGAKU KAISHI, no. 9 (1985): 1734–39. http://dx.doi.org/10.1246/nikkashi.1985.1734.

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