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1. The dietary control of plasma phenylalanine concentrations requires rigorous restriction of natural protein intake, often to less than 6 g per day.

2. Over 40 different mutations of the phenylalanine hydroxylase gene have been identified.

3. Longer periods of unusually low phenylalanine concentrations were also independently associated with worse outcome.

4. Method: Phenylalanine was absorbed with particle activated carbon.

5. Labelled shikimic acid is reality converted to phenylalanine.

6. The interaction between phenylalanine dipeptide (Phe-Phe) and calf thymus DNA (ct-DNA) was studied by using UV spectra and fluorescence spectra.

7. By sense and antisense transformation with PAL(phenylalanine ammonia lyase) gene, 70 transgenic rice plant lines were got.

8. Separation of L - phenylalanine by cation exchanged resin JK 006 was studied, including adsorption, scrubbing, desorption and regeneration.

9. The new process to extract and concentrate phenylalanine fermentation broth by liquid emulsion membrane ( LEM ) is introduced.

10. Phenylalanine inhibited both biosynthesis of isoquinoline alkaloids and growth of the hairy roots in B5 medium.

11. The course of salting-out the phenylalanine ammonia-lyase(PAL) in Ginkgobiloba leaves was studied.

12. Phenylalanine: One of the essential amino acids, present in many common proteins, especially hemoglobin.

13. The process of production of L - phenylalanine by enzyme catalysis is introduced in detail.

14. Phenylalanine is not easy to nitrify, so it is necessary to add in a little vitriol oil.

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15. Objective : To Study the antitussive effects of phenylalanine extract of Staphylococcus albus.

16. L - Phenylalanine, L - valine and L - leucine were used to prepare the corresponding NCAs.

17. D - phenylalanine is a nonprotein amino acid, meaning that it does not participate in protein biosynthesis.

18. The effects of phenylalanine, sucrose and mannitol on the cell growth and the production of taxol, baccatin III and 10deacetylbaccatin III in the suspension cells of Taxus media were studied.

19. Production, consumption and markets of L - phenylalanine at home and abroad are reviewed and analyzed.

20. Using virus vectors, Woo successfully inserted normal mouse genes for phenylalanine hydroxylase into cultured liver cells from the mutant mouse.

21. Abstract: A method of simultaneously determination of reactant and product for esterification of L - phenylalanine was described.

22. A method of simultaneously determination of reactant and product for esterification of L - phenylalanine was described.

23. The method has been used to determine tyrosine and tryptophane in the artificial sample containing phenylalanine, tyrosine and tryptophane, the result is satisfactory.

24. Ochratoxin A is a chlorinated benzopyran coupled to the amino acid phenylalanine, produced by several Aspergillus and Penicillium sp. associated with food spoilage.

25. A synchronous spectrofluorimetric method is described for the determination of tryptophane, tyrosine and phenylalanine in food and drug injections in this paper.

26. Quinine and other related cinchona alkaloids were chosen for the separation of some tart enantiomers of phenylalanine, aromatic acids and other acids.

27. As one of the aromatic amino acids, L - phenylalanine is synthesized very complicatedly in living cells.

28. Objective To investigate the point mutation features of exon 11 and 12 in phenylalanine hydroxylase( PAH )gene of the patients with phenylketonuria(PKU)in Xinjiang.

29. The limitary amino acid for biosynthesis of protein in both of the animals are all phenylalanine and methionine.

30. Objective To establish a method with high efficiency in detecting phenylalanine hydroxylase(PAH) gene mutations and hence to rapidly diagnose prenatal fetals with phenylketonuria .