Effect of seasonal shift on the proximate nutritional composition of some plant materials from the aquaponics farming
Abstract
This study intends to evaluate the variations of the proximate nutritional makers of some plant samples [red chili (RCH) fruit, red tomato (RTO) fruit, green spinach (GSP) leaf, and green lettuce (GLE) leaf] from aquaponics farming in relation to seasons. The research was carried out for the duration of four (4) periods (winter, spring, summer, and autumn). The proximate nutritional parameters determined were total moisture (TMO), crude ash (CAS), crude fibre (CFI), total carbohydrate (TCA), and soluble protein (SPR). The CAS, CFI, TCA, and SPR levels of the RCH, RTO, GSP, and GLE plant materials are significantly (P<0.05) difference among seasons. The CAS, CFI, TCA, and SPR amounts of each experimental plant materials increases significantly (P<0.05) in the summer in comparison to winter, spring, and autumn. However, the TMO content of above plant samples was detected to increase significantly (P<0.05) in the winter season. The findings of this research indicated that shifts in the seasonal factors such as temperature, solar intensity, and daylight length have revealed differences in the proximate nutritional indices of the study plant materials from aquaponics farming
Keywords
Proximate nutritional makers, red tomato, seasonal factors, total carbohydrate, winter period
Supporting Institution
This research received no financial support
Ethical Statement
Not applicable
Thanks
A warm regard to the Rhodes University, Makhanda town, South Africa, for giving resources to carry out this experimental work. Thanks to Mr. John Davies, the research aquaponics technology owner, for his assistance and keeping the system working to ensure that the study was completed within the stipulated period of time
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