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Acta Alimentaria
Authors: J. Montiel-Ventura, J.J. Luna-Guevara, M.A. Tornero-Campante, A. Delgado-Alvarado, and M.L. Luna-Guevara

The aim was to examine conditions of convective drying and spray-drying to improve preservation of lycopene content in tomatoes. The weight, size, colour, pH and °Brix values were evaluated in fresh fruit (FF) and colour (L, a, b), hue, and chrome indices were analysed from dried tomatoes, too. Tomato paste was dried (40, 50, 60, and 80 °C with times of 540, 390, 270, and 240 min) under convection conditions and pulverized. In the encapsulation treatments core material with tomato powders of 50, 60, and 70%, shell solution of maltodextrin/gum arabic 1:1, flow rate of 4, 6, 9, and 12 ml min–1, and inlet air T of 160, 170, and 180 °C were used. The physicochemical properties of FF corresponded to a degree of ripeness for consumption. The a, a/b, and hue values of dried tomatoes at 50 °C significantly correlated to red colouring and higher lycopene content (47.98±1.49 mg/100 g). The encapsulation with 50% and 60% of tomato powders, 170 °C and 9 ml min–1 treatments increased lycopene contents to 10.41 mg/100 g, 10.20 mg/100 g, and 11.51 mg/100 g, respectively. The results demonstrated that the physicochemical and functional properties were influenced by drying conditions, providing useful information for increasing the stability of lycopene in dried tomatoes.

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mmol/g 0.438 0.374 Mn mmol/g 10.34 10.27 AOS(Mn 2 O x

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Alexander Khassin, Georgiy Filonenko, Tatyana Minyukova, Irina Molina, Lyudmila Plyasova, Tatyana Larina, and Vladimir Anufrienko

admixtures till high temperatures (see e.g. [ 10 ]). At that, magnesia itself is famous as a highly efficient sorbent of water and carbon dioxide, which has high sorption capacity since the sorbed molecules interact with O 2− anions giving hydroxyls and

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, Goodwin , JG 2005 Ind Eng Chem Res 44 : 5353 – 5363 10.1021/ie049157g . 10. Bennici S , Auroux A ( 2009 ) In: Jackson SD , Hargreaves SJ (ed) Metal oxide

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: Penicillin G (10 µg). 3.3 Determination of probiotic potential and technological properties 3.3.1 Cell viability under simulated gastrointestinal conditions The high tolerance to acidity at pH 2 and 3 was found for MA-10 with a high survival rate after 3 h

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.3 Sausages characterisation Cooking loss and water holding capacity (WHC) : Cooking loss and WHC of the sausages were quantified after heating (80 °C, 20 min) and centrifugation (1,000× g , 10 min at 4 °C), respectively ( Hur et al., 2008 ). Texture profile

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, c 10 −4 , d 10 −3 , e 10 −2 , f 10 −1 and g 10 0 mol %) at 783 K Several authors [ 46 , 47 ] have observed a huge increase in the rate of thermal decomposition of ammonium perchlorate on pre

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strains were propagated twice in 10 ml of MRS broth and incubated at 30 °C for L. sanfranciscensis and 37 °C for L. plantarum overnight. The fresh starter culture inoculum was obtained by centrifugation (9 000 × g , 10 min, 4 °C) of the second

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mixture was dried in an oven at 80 °C for 2 hours. The calculation of cooking loss was performed by Eq. (2) : (2) Solid   loss   % = latter   dry   matter   ×   250  mL   ×   100 / 2   g   ×   10  mL 2.5. Colour and texture properties The colour of the

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(2.5 g, 10 mmol) was added to 30% aqueous H 2 O 2 solution (8 ml). After 1.5 h of stirring at 50 °C, the mixture was treated with centrifugation, the light yellow supernatant was added to 21.5 ml of distilled H 2 O and 1 ml of H 3 PO 4 (85% (w

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