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\hypersetup{pdftitle={Effect of Edible Coatings from Chitosan and Aloe Vera Gel on  \textit{Citrus sinensis}  L.  Stored in Evaporative Cooling Structures},pdfauthor={Charles Oluwaseun Adetunji, Oyebanji Oluseun Aboyeji, Boni Ishiak, Emmanuel Sunday Ajayi},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={ Aloe vera gel,  Citrus sinensis  L, chitosan, edible coatings, Jatropha carcus oil, Sustainable Development Goals (SDGs)},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 18-21, 2016, Vienna, Austria}}\\[1ex] \Large{``Solidarity in a competing world ---\\fair use of resources''\\[2ex]}}
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\begin{center}
\Large{\textbf{Effect of Edible Coatings from Chitosan and Aloe Vera Gel on  \textit{Citrus sinensis}  L.  Stored in Evaporative Cooling Structures\footnote{\textbf{Contact Address:} Oyebanji Oluseun Aboyeji, Kwara State College of Education, Dept. of Biology, P.M.B. 01, Lafiagi, Nigeria, \mbox{e-mail}: \email{oyeaboyeji@gmail.com}}\\[0.8ex]}}
\normalsize{\textsc{Charles Oluwaseun Adetunji$^{1}$, Oyebanji Oluseun Aboyeji$^{2}$, Boni Ishiak$^{2}$, Emmanuel Sunday Ajayi$^{3}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$Landmark University, Dept. of Biological Sciences, Nigeria}}}
\item[]{\small{\textit{$^{2}$Kwara State College of Education, Dept. of Biology, Nigeria}}}
\item[]{\small{\textit{$^{3}$Federal University Oye Ekiti, Dept. of Agricultural and Bioresources Engineering, Nigeria}}}
\end{itemize*}
\index[author]{Adetunji, Charles Oluwaseun}
\index[author]{Aboyeji, Oyebanji Oluseun}
\index[author]{Ishiak, Boni}
\index[author]{Ajayi, Emmanuel Sunday}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
One of the greatest challenges of the twenty"=first century will be to feed world's population, because food resources are limited, and the world population is increasing at an alarming rate. Also, during the last decades, there has been an increasing demand for fresh fruits and vegetables forcing the food industry to develop new and better methods for maintaining food quality and extending shelf life. 



This work was carried out so as to develop a  biodegradable composite edible coatings from chitosan and Aloe vera gel using \textit{Jatropha carcus} oil as a plastizier during storage  in metal"=in-block and block"=in-block evaporating structure as well as to determine the effect of the formulated edible coating on the post"=harvest self"=life of orange at 27 $\pm$ 2 oC. The following treatments were used in coating the oranges for 12 weeks: untreated oranges (Control), Oranges coated with \mbox{2\,\%} v/v Aloe vera gel. ALG, Oranges coated with \mbox{2\,\%} w/v chitosan. CH, Oranges coated with mixture of \mbox{2\,\%} v/v Aloe vera gel and \mbox{2\,\%} of \textit{Jatropha carcus} oil serving as plastizier. ALGJCO, Oranges coated with mixture of \mbox{2\,\%} v/v Aloe vera gel and \mbox{2\,\%} w/v chitosan  ALGJCH, Oranges coated with mixture of \mbox{2\,\%} v/v Aloe vera gel, \mbox{2\,\%} w/v chitosan and \mbox{2\,\%} v/v Jatropha carcus oil serving as plastizier. ALGCHJCO. It was observed that the treated extend the shelf life of the oranges in the following order ALGCHJCO$>$ ALGJCH $>$ ALGJCO$>$ CH$>$ ALG$>$ Control, with the following parameters including firmness, total soluble solid, pH, ascorbic acid, \% water loss. It was also observed that the treated caused significant p $\leq$ 0.05 reductions in the mesophilic count, physchrotropic count, mould and yeast count when compared with the control. Generally, a better result was observed for the oranges stored in metal"=in-block than the block"=in-block evaporating structure.



This study is expected to lead to the development and evaluation of indigenous wax emulsions/ coatings for prolonging the shelf"=life of fruits, thereby ensuring food security, poverty reduction and wealth creation in Nigeria, which also is in alignment with the objectives of Sustainable Development Goals (SDGs).



}

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\end{abstract}
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\noindent \textbf{Keywords:}  Aloe vera gel,  \textit{Citrus sinensis}  L, chitosan, edible coatings, Jatropha carcus oil, Sustainable Development Goals (SDGs)
\index[key]{ Aloe vera gel}
\index[key]{ Citrus sinensis@\textit{Citrus sinensis}  L}
\index[key]{Chitosan}
\index[key]{Edible coatings}
\index[key]{Jatropha carcus oil}
\index[key]{Sustainable!Development Goals (SDGs)}
\end{document}
