Nutrition Quality Analysis Of Different Varieties Of Hazelnu

Hazelnut in the world has about16species, mainly distributed in Asia, Europe andNorth america. China as an important producer of native hazelnut,8species and2varieties, mainlydistributed in Northeast, North China, northwest and southwest regions. Hazel has a large fruit,beautiful appearance, nutrient-rich features, have very high commercial value, but after years ofintroduction test shows that is not suitable for the climate of china. Corylus heterophylla is a nativeof Chinese wild hazel in the most economic use of resources, good cold resistance, but fruit small,shell thickness, kernel rate low. In order to solve these problems, China’s adoption of Corylusheterophylla Corylus avellana L.×interspecific hybridization obtained F1hybrid hazelnut, with cold,fruit, high yield, strong adaptability, successfully created for China’s climate characteristics ofhazelnut varieties. This article through to the43hybrid hazelnut, hazelnut Corylus avellana, basicnutrients were determined and the clustering analysis and selection of4kinds of typical hazelnut oil,composition and antioxidant activities of specific analysis. The results are as follows:1the rate of emptyAfter the42kinds of Hybrid Hazelnut hazelnut were empty peace kernel ratedetermination, the results in Table1, table2shows: the hazelnut empty kernel rate was1.90%-26.40%. Hybrid hazelnut in highest for ’Liaozhen126.44%, the lowest of6.35%of84-376;the highest level of Corylus heterophylla is1#11.56#, the lowest for flat5#1.90%. Hybrid hazelnutshell of the average rate of17.31%, the average rate of hazelnut shell4.78%is far lower than thehybrid hazelnut.2different hazelnut moisture content difference. Hazelnut water content of3.87%-9.51%, differentvarieties （lines, the difference that exists between the type）. Hybrid Hazelnut moisture content of3.87%-9.51%, an average value of5.26%. The minimum is84-524, the highest for the ’Liaozhen1,lines （lines） there are certain differences significant. Improvement of moisture content in between4.89%-6.90%, the mean value was4.89%, the lowest level of5#, the highest level of strains of1#,there are also differences significant. Hazel Water content is3.79%, significantly lower than hybridshazel Corylus peace, and hybrid hazelnut hazelnut average moisture content of peace between allreached the significant level.3different starch content differences. Hazelnut in starch content was less, hybrid hazelnut content inbetween0.92%-2.03%, an average value of1.43%. Minimum of85-119, up to84-1, Corylusheterophylla starch content in between1.25%-1.65%, the mean value was1.07%, the lowest level isthe highest level for5#,1#. Hazel starch content of1.64%. There was significant difference between3kinds of Corylus heterophylla, starch content was significantly lower than the European peacehybrids hazel hazel.4different hazelnut total sugar content difference. Total carbohydrate nutrition is an important partof the flavor of food and energy, has important significance. Hybrid Hazelnut total sugar content inbetween12.66%-19.09%, an average value of17.32%. The minimum for Dawei, up to83-40.Improvement of total sugar content in between11.37%-13.73%, the mean value was12.10%, thelowest level is the highest level for1#,5#. Hazel sugar content is15.81%.3interspecific hybridhazelnut Corylus filbert>>, significant difference.5different hazelnut protein content difference. Hybrid Hazelnut soluble protein content in the29.22mg g^-1-68.57g^-1 mg, an average value of54.20mg g^-183-62, minimum, maximum of85-119.Corylus heterophylla soluble protein content in the49.54mg g^-1-70.48g^-1 mg, an average value of56.91mg g^-1, lowest for flat1#, up to5#. Hazel soluble protein content of62.86mg g^-1, there were significant differences with other hazelnut. The coefficient of variation of Corylus heterophyllawas obviously higher, visible type distribution range.6different hazelnut fat content difference. Hybrid Hazelnut fat content in between53.80%-63.33%,an average value of59.41%. Minimum of83-62, up to82-8. Corylus heterophylla fat content inbetween54.67%-60.80%, an average value of58.30%. The minimum for5#,3#for flat top. Hazelfat content is64.59%, significantly higher than hazelnut and hybrid hazel. Hazelnut fat smallcoefficient of variation, the individual discrete degree.7hazelnut oil basic physicochemical properties differences. Hazelnut oil acid value of0.67-1.77for137.15-147.50, iodine value, saponification value is144.99-159.03. In4species of Corylusheterophylla, with low acid value, iodine value and high saponification value,’’Liaozhen3#’ haslow acid value, saponification value and higher iodine value,’ Dawei ’ with high acid value andsaponification value,’ Barcelona ’ with high acid value and low saponification value.8hazelnut oil fatty acid composition and diversity. Flat1#’ detection of12kinds of fatty acids,’Barcelona ’,’’ Liaozhen3#,’ hazel ’ Dawei ’ detection of10kinds of fatty acids.4kinds of hazelnutoil with oleic acid content was highest, content of67.69%⁸2.26%. Linoleic acid and oleic acidcontent only, reach11.37%¹4.24%. Hazelnut oil in monounsaturated fatty acid content is muchhigher than that of polyunsaturated fatty acids and saturated fatty acid, unsaturated fatty acid contentin84.37%⁹4.31%; polyunsaturated fatty acid content in11.84¹6.39%, linoleic acid content in11.37%¹4.24%.9hazelnut oil antioxidant degree analysis. Hazelnut free radicals of DPPH median clearanceconcentration of IC50in23.63mg/ml-42.40mg/ml, antioxidant activity:’ Liaozhen3#’>’Ping1#’>’ Dawei ’>’ Barcelona ’.