Search Results - "Ramírez, Hector L."

Evaluation of the Food Sniffer electronic nose for assessing the shelf life of fresh pork meat compared to physicochemical measurements of meat quality by Ramírez, Héctor L., Soriano, Almudena, Gómez, Sergio, Iranzo, Juan Ubeda, Briones, Ana I.

“…In food technology applications, electronic noses have been used on the on-line control of different processes. In this study, assessment of shelf life of…”
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Pharmacokinetics and Stability Properties of Catalase Modified with Water-Soluble Polysaccharides by Valdivia, Aymara, Pérez, Yunel, Gómez, Leissy, Ramírez, Hector L., Schacht, Etienne H., Villalonga, Reynaldo

“…Bovine liver catalase (EC 1.11.1.6) was chemically modified with mannan, carboxymethylcellulose, and carboxymethylchitin. The enzyme retained about 48–97% of…”
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β-Cyclodextrin modifications as related to enzyme stability in dehydrated systems: Supramolecular transitions and molecular interactions by Santagapita, Patricio R., Brizuela, Leissy Gómez, Mazzobre, M. Florencia, Ramírez, Héctor L., Corti, Horacio R., Santana, Reynaldo Villalonga, Buera, M. Pilar

“…The effect of β-cyclodextrin modifications (polymerization (PCD) and later carboxymethylation (CMPCD)) on their action as enzyme stabilizers was analyzed…”
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Partial purification and properties of cyclodextrin glycosiltransferase (CGTase) from alkalophilic Bacillus species by Mora, Marlene M Martínez, Sánchez, Karel Hernández, Santana, Reynaldo Villalonga, Rojas, Arley Pérez, Ramírez, Héctor L, Torres-Labandeira, Juan José

“…Cyclodextrin glucanotransferase (CGTase, EC 2.4.1.9) is an unique enzyme capable of converting starch and related substrates into cyclodextrins (CDs). In this…”
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Cyclodextrin-grafted polysaccharides as supramolecular carrier systems for naproxen by Ramírez, Héctor L., Valdivia, Aymara, Cao, Roberto, Torres-Labandeira, Juan J., Fragoso, Alex, Villalonga, Reynaldo

“…New polymeric carriers for low molecular weight drugs were synthesized by grafting β-cyclodextrins into polysaccharides, evaluating the influence of their…”
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Polyelectrolyte complex formation mediated immobilization of chitosan-invertase neoglycoconjugate on pectin-coated chitin by GOMEZ, Leissy, RAMIREZ, Hector L, NEIRA-CARRILLO, Andronico, VILLALONGA, Reynaldo

“…Saccharomyces cerevisiae invertase, chemically modified with chitosan, was immobilized on pectin-coated chitin support via polyelectrolyte complex formation…”
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Improved Anti-Inflammatory Properties for Naproxen with Cyclodextrin-Grafted Polysaccharides by Ramírez, Héctor L., Cao, Roberto, Fragoso, Alex, Torres-Labandeira, Juan J., Dominguez, Amalia, Schacht, Etienne H., Baños, Maysa, Villalonga, Reynaldo

“…Mannan and carboxymethylcellulose, previously activated by periodate oxidation, were grafted with mono‐6‐butylenediamino‐6‐deoxy‐β‐cyclodextrin derivatives by…”
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Immobilization of β-Glucosidase and Its Application for Enhancement of Aroma Precursors in Muscat Wine by Romo-Sánchez, Sheila, Arévalo-Villena, María, García Romero, Esteban, Ramirez, Héctor L, Briones Pérez, Ana

“…Enzyme immobilization is becoming more widely practised in biotechnology because of the advantages that this method brings. In this study, commercial…”
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Immobilization of Chitosan-Invertase Neoglycoconjugate on Carboxymethylcellulose-Modified Chitin by Gómez, Leissy, Ramírez, Hector L., Villalonga, Reynaldo

“…Saccharomyces cerevisiae invertase, chemically modified with chitosan, was immobilized on a carboxymethylcellulose-coated chitin support via polyelectrolyte…”
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Stabilization of α-amylase by chemical modification with carboxymethylcellulose by Villalonga, Reynaldo, Gómez, Leissy, Ramírez, Hector L, Villalonga, Maria L

“…Carboxymethylcellulose activated by periodate oxidation was covalently linked to porcine pancreatic α‐amylase (EC 3.2.1.1). The specific activity of the…”
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Impact of supramolecular interactions of dextran-β-cyclodextrin polymers on invertase activity in freeze-dried systems by Santagapita, Patricio R., Mazzobre, M. Florencia, Buera, M. Pilar, Ramirez, Héctor L., Brizuela, Leissy Gómez, Corti, Horacio R., Villalonga, Reynaldo

“…β‐Cyclodextrin (β‐CD)‐grafted dextrans with spacer arms of different length were employed to evaluate the impact of supramolecular interactions on invertase…”
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Immobilization of chitosan-modified invertase on alginate-coated chitin support via polyelectrolyte complex formation by Gómez, Leissy, Ramírez, Hector L., Villalonga, Maria L., Hernández, Junior, Villalonga, Reynaldo

“…Saccharomyces cerevisiae invertase was chemically modified with chitosan and further immobilized on sodium alginate-coated chitin support. The yield of…”
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Supramolecular-mediated thermostabilization of phenylalanine dehydrogenase modified with β-cyclodextrin derivatives by Villalonga, Reynaldo, Tachibana, Shinjiro, Cao, Roberto, Ramirez, Hector L., Asano, Yasuhisa

“…Two different monoactivated β-cyclodextrin derivatives, named mono-6-amino-6-deoxy-β-CD (CD1) and mono-6-(5-carboxypentane-1-carboxamidoyl)-6-deoxy-β-CD (CD2)…”
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Structure/Function Relationships of Several Biopolymers as Related to Invertase Stability in Dehydrated Systems by Santagapita, Patricio R, Brizuela, Leissy Gómez, Mazzobre, M. Florencia, Ramirez, Héctor L, Corti, Horacio R, Santana, Reynaldo Villalonga, Buera, M. Pilar

“…Structure/function relationships of different biopolymers (alginate, dextran, or β-cyclodextrin) were analyzed as single excipients or combined with trehalose…”
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Preparation of β-Cyclodextrin-Dextran Polymers and their Use as Supramolecular Carrier Systems for Naproxen by Ramirez, Hector L., Valdivia, Aymara, Cao, Roberto, Fragoso, Alex, Torres Labandeira, Juan Jose, Baños, Maysa, Villalonga, Reynaldo

“…SummaryDextran, previously activated by periodate oxidation, was grafted with mono-6-amino-6-deoxy-β-cyclodextrin,…”
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IMMOBILIZATION OF INVERTASE-CHITOSAN CONJUGATE ON HYALURONIC-ACID-MODIFIED CHITIN by GOMEZ, LEISSY, RAMIREZ, HECTOR L, CABRERA, GUSTAVO, SIMPSON, BENJAMIN K, VILLALONGA, REYNALDO

“…Baker yeast invertase, chemically modified with chitosan, was immobilized on hyaluronic-acid-coated chitin support via polyelectrolyte complex formation. The…”
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Improved Pharmacokinetics Properties for Catalase by Site-Specific Glycosidation with Aminated Dextran by Pérez, Yunel, Valdivia, Aymara, Ramírez, Hector L., Villalonga, Reynaldo

“…Catalase was chemically modified with an end‐group aminated dextran derivative via a carbodiimide catalyzed reaction. The enzymatic activity of catalase was…”
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Stabilization of invertase by modification of sugar chains with chitosan by GOMEZ, L, RAMIREZ, H. L, VILLALONGA, R

“…Chitosan was linked to invertase by covalent conjugation to periodate-activated carbohydrate moieties of the enzyme. The thermostability of modified enzyme was…”
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Thermal stabilization of trypsin with glycol chitosan by Fernández, Leyden, Gómez, Leissy, Ramírez, Héctor L, Villalonga, Maria L., Villalonga, Reynaldo

“…Glycol chitosan was evaluated as thermoprotectant additive for trypsin in aqueous solutions. Maximal stabilization was achieved by using a polymer/protein…”
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Highly Accurate and Inexpensive Computational Tool for Improving Photovoltaic Arrays Performance and Efficiency Measures by Ramirez, Hector L. Nunez, Kassar, Gloria G. Carvalho, Maestre, Freddy C. Brito, Maldonado, Yaremi I. Gamboa, Avendano, Luis A. Santos, Toro, Carlelines Gavidia

“…This work shows the results of a computational tool that allows to simulate the behavior of arrays of photovoltaic cells, under the physical model of two…”
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