Browsing Articles publicats (Tecnologia dels Aliments) by Author "Zudaire Villanueva, Lorena"
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An insight into the reactions occurring during the chemical activation of bone char
Iriarte-Velasco, Unai; Ayastuy, José L.; Zudaire Villanueva, Lorena; Sierra, Irene (Elsevier B.V, 2014-09-01)The valorisation of animal wastes by pyrolysis has shown to be of interest, due to the versatility of the main compound of char, hydroxyapatite (HAP), which can be used in catalysis, electrochemistry, and adsorption. The ... -
Conversion of waste animal bones into porous hydroxyapatite by alkaline treatment: effect of the impregnation ratio and investigation of the activation mechanism
Iriarte-Velasco, Unai; Sierra, Irene; Zudaire Villanueva, Lorena; Ayastuy, José L. (Springer, 2015-08-06)Microporous biochars, mainly composed by hydroxyapatite (HAp), were prepared from animal waste bones. In this study, a three-step procedure including pre-pyrolysis, chemical treatment with NaOH, KOH and K2CO3, and pyrolysis ... -
Corrigendum to ‘Quality and bioaccessibility of total phenols and antioxidant activity of calçots (Allium cepa L.) stored under controlled atmosphere conditions’ Postharvest Biology and Technology 129 (2017) 118-128
Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Abadias i Sero, Mª Isabel; Simó Cruanyes, Joan; Echeverría Cortada, Gemma; Plaza, Lucía; Aguiló-Aguayo, Ingrid (Elsevier, 2017) -
Effect of pre-harvest conditions and postharvest storage time on the quality of whole and fresh-cut calçots (Allium cepa L.)
Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Simó Cruanyes, Joan; Sans, Silvia; Abadias i Sero, Mª Isabel; Aguiló-Aguayo, Ingrid (Elsevier, 2019-01-23)Pre-harvest conditions such as cultivar, cultivation site and planting time could affect the storability, quality and shelf-life of fruit and vegetables. The influence of onion cultivar, cultivation site and planting time ... -
Effect of ultrasound pre-treatment on the physical, microbiological, and antioxidant properties of calçots
Zudaire Villanueva, Lorena; Lafarga, Tomás; Viñas Almenar, Inmaculada; Abadias i Sero, Mª Isabel; Brunton, Nigel; Aguiló-Aguayo, Ingrid (Springer, 2018-12-03)The effect of ultrasound (US) treatment (40 kHz, 250 W) for 0, 10,25 and 45 min on the physical and microbiological quality, total antioxidant capacity (TAC) and total phenolic content (TPC) of calçots (Allium cepaL.) was ... -
Efficacy of chlorine, peroxyacetic acid and mild-heat treatment on the reduction of natural microflora and maintenance of quality of fresh-cut calçots (Allium cepa L.)
Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Abadias i Sero, Mª Isabel; Simó Cruanyes, Joan; Aguiló-Aguayo, Ingrid (Elsevier, 2018)Calçots are the immature floral stems of the second-year onion (Allium cepa L.) resprouts with economic importance in Spain. The effect of sodium hypochlorite, peroxyacetic acid and mild heat treatment on the microbiological, ... -
Evaluation of biocontrol capacity of Pseudomonas graminis CPA-7 against foodborne pathogens on fresh-cut pear and its effect on fruit volatile compounds
Iglesias Valenzuela, María Belén; López Fructuoso, Mª Luisa; Echeverría Cortada, Gemma; Viñas Almenar, Inmaculada; Zudaire Villanueva, Lorena; Abadias i Sero, Mª Isabel (Elsevier, 2018)The application of microorganisms to control the growth of foodborne pathogens is an alternative to the use of chemical additives. In this work, Pseudomonas graminis CPA-7 was tested as a biocontrol agent against Salmonella ... -
Evaluation of postharvest calcium treatment and biopreservation with Lactobacillus rhamnosus GG on the quality of fresh‐cut ‘Conference’ pears
Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Plaza, Lucía; Iglesias Valenzuela, María Belén; Abadias i Sero, Mª Isabel; Aguiló-Aguayo, Ingrid (WileySociety of Chemical Industry, 2018)BACKGROUND Biological preservation with probiotic bacteria has arisen as an alternative to control the growth of foodborne pathogens on food. The objective of this work was to evaluate the effect of postharvest calcium ... -
Evaluation of Pseudomonas graminis CPA-7 as a biopreservation method for fresh-cut pear: Physicochemical, enzymatic, and nutritional quality
Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Iglesias Valenzuela, María Belén; Plaza, Lucía; Abadias i Sero, Mª Isabel; Aguiló-Aguayo, Ingrid (SAGE Publications, 2018)Biological preservation methods with bacterial antagonists have emerged as alternatives to chemical sanitizers for extending shelf-life and reducing the population of pathogenic microorganisms. In addition, calcium plays ... -
Quality and bioaccessibility of total phenols and antioxidant activity of calçots (Allium cepa L.) stored under controlled atmosphere conditions
Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Abadias i Sero, Mª Isabel; Simó Cruanyes, Joan; Echeverría Cortada, Gemma; Plaza, Lucía; Aguiló-Aguayo, Ingrid (Elsevier, 2017)Calçots are the floral stems of the second-year onion (Allium cepa L.) resprouts with economic importance in Spain, where they are usually consumed roasted. The effect of two controlled atmospheres (CA) of 2.0% O2 + 3.5% ... -
Steaming and sous-vide: Effects on antioxidant activity, vitamin C, and total phenolic content of Brassica vegetables
Lafarga, Tomás; Bobo, Gloria; Viñas Almenar, Inmaculada; Zudaire Villanueva, Lorena; Simó Cruanyes, Joan; Aguiló-Aguayo, Ingrid (Elsevier, 2018-05-28)The present study evaluated the effect of thermal processing on the colour, antioxidant activity, vitamin C content, and total phenols of six Brassica vegetables. The landrace Grelo was the best source of total phenols ...