Abstract
The aim of our study was to measure the color by system CIELAB, sensory analysis, and determination of vitamins in children vegetable complementary feeding (carrot, vegetable mix) with the option to extend shelf life from eighteen to twenty-one months. Complementary children food was obtained from private factory in the Czech Republic. In this research there were used only carrot and vegetable mix samples. To determine the color changes by system CIELAB and determination of vitamins, samples of mash were analyzed before filling into jars and sterilization, and then immediately after sterilization. Further analyzes were performed for twenty-one months, with run of every three months (p <0.05). The comparison of color CIELAB parameter L* (lightness) for two process steps: raw mash and sterilized mash; there were significant differences when processing (p <0.0001, r2 = 0.9983). Mainly, the parameter L* (Lightness) showed statistically significant differences in carrot and garden mix (p <0.05). β-carotenes such as provitamin A, is in food of plant origin stable substance in the absence of air. Storing time had significant influence on contain of β-carotenes, the mean content during twenty-one months was 0.862 mg.100g-1 (p <0.05, r2 = 0.2300). There were no significant differences in dark storing (p >0.05, r2 = 0.1097). The sensory evaluation showed statistical differences in all descriptors (color saturation, uniformity of color, consistency and homogeneity) (p <0.05) in course of months of storage time and storage conditions (daylight-dark). The results can be recommended to manufacturers, extending the period of minimum shelf life of the required three months to twenty-one months due to instability as characteristics of color and textural properties which were obtained.
Highlights
The period of transition from exclusive breastfeeding to family foods, referred to as complementary feeding, covers a child from 6 – 23 months of age
The aim of our study was to measure the color by system CIELAB, sensory analysis and determination of vitamins in children vegetable complementary feeding with the option to extend shelf life of 18 to 21 months
The significant statistical differences were calculated for all CIELAB parameters L*a*b* p
Summary
The period of transition from exclusive breastfeeding to family foods, referred to as complementary feeding, covers a child from 6 – 23 months of age. Complementary feeding embraces all solid and liquid foods other than breast milk or infant formula and follow-on formula (ESPGHAN, 2008). Malnutrition in young children can be prevented by feeding them with enough nutritious and safe complementary foods. The Association of United Kingdom Dietitians (BDA) and its Department of Health (DH) guidelines recommend the introduction of complementary feeding at around six months (BDA, 2013). BDA guidelines correspond with WHO (World Health Organization) statement. Most infants are developmentally ready for other foods at about 6 months. During the period of complementary feeding, children are at high risk of undernutrition (WHO, 2009)
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