In the present study was determined the parameters of temperature and extraction time to achieve higher yield and gel strength of gelatin from speckled smooth-hound skin (Mustelus mento) by alkaline hydrolysis. It was used the central composite rotational design (CCRD) with 11 experiments with temperatures between 60ºC and 95°C and extraction time between 30 minutes and 240 min. It was concluded that with higher extraction times, higher yield percentage will get, and with lower extraction temperature, higher gel strength will get. For obtaining higher yield (27% – 28%) and greater gelatin gel strength (130 - 150g Bloom), we used 220 and 240 minutes, and temperatures between 60 and 65 °C.

In the present study was determined the parameters of temperature and extraction time to achieve higher yield and gel strength of gelatin from speckled smooth-hound skin (Mustelus mento) by alkaline hydrolysis. It was used the central composite rotational design (CCRD) with 11 experiments with temperatures between 60ºC and 95°C and extraction time between 30 minutes and 240 min. It was concluded that with higher extraction times, higher yield percentage will get, and with lower extraction temperature, higher gel strength will get. For obtaining higher yield (27% – 28%) and greater gelatin gel strength (130 - 150g Bloom), we used 220 and 240 minutes, and temperatures between 60 and 65 °C.

In this study we estimated shelf life of canned marinated hearts of artichoke (Cynara scolymus L.) which had the major sensory preference in color and flavor evaluated by a semi trained panel conformed by 15 judges. Also omega 3 and omega 6 content was determined (28.69 g/100g y 43.26 g/100g of fat respectively) which are within the limit approved by the World Health Organization. It was done the estimation of the shelf life by accelerated testing, the samples were incubated at 37oC, 49oC and 55oC, evaluating the kinetic of deterioration of the fat in function of the peroxide index that followed a reaction of order zero. The temperature effect was evaluated with the equation of Arrhenius, and the activation energy was 96115.6 J/mol. At a storage temperature of 20 oC, the estimation of shelf life was 892 days.

In this study we estimated shelf life of canned marinated hearts of artichoke (Cynara scolymus L.) which had the major sensory preference in color and flavor evaluated by a semi trained panel conformed by 15 judges. Also omega 3 and omega 6 content was determined (28.69 g/100g y 43.26 g/100g of fat respectively) which are within the limit approved by the World Health Organization. It was done the estimation of the shelf life by accelerated testing, the samples were incubated at 37oC, 49oC and 55oC, evaluating the kinetic of deterioration of the fat in function of the peroxide index that followed a reaction of order zero. The temperature effect was evaluated with the equation of Arrhenius, and the activation energy was 96115.6 J/mol. At a storage temperature of 20 oC, the estimation of shelf life was 892 days.