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P Perez-Juan

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Articles 11
Citations 32
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Recent Articles
1.
Luque-Rodriguez J, Luque de Castro M, Perez-Juan P
Talanta . 2008 Oct; 68(1):126-30. PMID: 18970294
Superheated hexane extraction has been tested for obtaining fatty acids from grape seed and compared with conventional Soxhlet and hot hexane extractions. Seeds from grape residues from a winery were...
2.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
Talanta . 2008 Oct; 59(4):691-6. PMID: 18968957
A fast, clean and easy to automate flow injection-pervaporation method for the determination of ethanol in different beverages using density measurements is proposed. The method is based on separation of...
3.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
Talanta . 2008 Oct; 56(1):53-9. PMID: 18968479
A simultaneous and fast method for the determination of total polyphenol index (t.p.i.) and total anthocyan index (t.a.i.) has been developed by a flow injection approach and a diode array...
4.
Luque-Rodriguez J, Luque de Castro M, Perez-Juan P
Bioresour Technol . 2006 Nov; 98(14):2705-13. PMID: 17092712
Grape skins from a grape pomace were subject to extraction with superheated ethanol-water mixtures for quantitative extraction of anthocyans and other phenolic compounds. The variables affecting dynamic extraction of these...
5.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
J Chromatogr A . 2004 Jul; 1038(1-2):3-9. PMID: 15233515
A study of the extraction of non-volatile compounds from oak wood using superheated water-ethanol mixtures ranging from 10 to 60% ethanol is reported. Identification and characterization of the extracted compounds...
6.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
Anal Bioanal Chem . 2003 Oct; 377(7-8):1190-5. PMID: 14523606
Solid residues from winemaking processes have been subjected to extraction with superheated water-ethanol mixtures. Identification and characterization of the extracted compounds were achieved by spectrophotometry, gas chromatography with either flame-ionization...
7.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
Anal Bioanal Chem . 2002 Sep; 374(1):120-5. PMID: 12207252
An easily automatable sequential flow-injection-pervaporation method is proposed for the photometric determination of methanol and iron in vinegar. The method is based on separation of the methanol from the sample...
8.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
Analyst . 2002 May; 127(3):420-3. PMID: 11996371
A flow injection method for the determination of readily assimilable nitrogen (r.a.n.), i.e. ammonium and aminated nitrogen, is reported. The difference in pH of the sample in the presence and...
9.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
J AOAC Int . 2002 Jan; 84(6):1846-50. PMID: 11767154
A flow-injection (FI) method based on analytical pervaporation was assessed for its routine use in the determination of volatile acidity in winery laboratories. The new method was compared with both...
10.
Gonzalez-Rodriguez J, Perez-Juan P, Luque de Castro M
Analyst . 2001 Aug; 126(7):1177-81. PMID: 11478657
A flow injection method (FI) for the sequential determination of ethanol and acetic acid in vinegar is reported. The determination of ethanol is based on the oxidation of the pervaporated...