Study on nutritional components of Camellia chekiangoleosa flowers and value evaluation of amino acid

In order to understand the nutritional value of Camellia chekiangoleosa flowers,using three kinds of Camellia chekiangoleosa flowers as raw material,including Camellia chekiangoleosa Hu,Camellia reticulata and Camellia semiserrata,which are cultivated on a large scale. Contents of protein,crude fat,total sugar,reducing sugar,polysaccharide,amino acid,flavonoids,polyphenol,anthocyanins and VCwere determined using chemical analysis.Duncan analysis,principal component analysis were used to process the tested data. According to the results,nutrition components of Camellia chekiangoleosa Flowers were rich of nutritional components,of which the total sugar,reducing sugar and polysaccharide content were 31% ~37%,17% ~26% and 7.1% ~8.2%,respectively,and protein content was between 3.2% ~ 3.6%. The antioxidant ingredient were higher,of which flavonoids and polyphenols were more than 3000 mg /100 g,anthocyanins was 251~416 mg /100 g,vitamin C was 10~21 mg /100 g.The result of principal component analysis model showed that the nutrients composite scores of Camellia chekiangoleosa Hu flower,Camellia reticulata flower and Camellia semiserrata flower were 2.630,-0.428 and 2.032,respectively.It meaned that nutritional value of Camellia chekiangoleosa Hu flower was better.Three cultivars flowers amino acid composition were rich,and the amount between 145.65~171.72 mg /100 g.All cultivars contains more than 7kinds of essential amino acids. The analysis result indicated that score of the ratio coefficient of acid of Camellia chekiangoleosa Hu flower was the highest of three kinds. While the protein digestibility of Camellia reticulate flower was the best,and its composition ratio of taste amino acids was the most excellent. Within the scope of the established determination,integrated analysis imply that Camellia chekiangoleosa Hu flower was the best.