黑桃果实营养成分分析

分析测定结果表明,黑桃果实不论大小,成熟时的水分含量均高达88%左右,为多汁水果.果实富含4种糖,5种有机酸.含量的高低次序均为:蔗糖＞果糖＞葡萄糖＞棉籽糖,苹果酸＞柠檬酸＞乙酸＞草酸＞琥珀酸.果实含有4种维生素及多种矿物质;大果和小果分别含有14种和9种游离氨基酸,但都以苏氨酸和组氨酸为主,两者之和分别占大果和小果所含氨基酸总量的72.63%和70.63%;大果和小果都含有15种水解氨基酸,其中人体必需氨基酸8种,所占比例大果为33.51%,小果为28.36%.此外,水解氨基酸中酸性氨基酸占绝对优势,大果中占52.58%,小果中占49.19%.表5参12

Analysis of nutrients of prunus persica cv.Heitao fruit

The nutrients of Prunus persica cv.Heitao fruits was determined and analyzed. The findings showed that black peach was a juicy fruit whose moisture was as high as 88% regardless of its size. The fruit of black peach contained 4 sugars and 5 organic acids. The contents of these sugars and acids were ranked as follows: saccharose> fructose> glucose> raffinose; malic acid> citric acid> acetic acid> oxalic acid> succinic acid. And it also contained 4 vitamins and various minerals. The big fruit and small fruit contained respectively 14 and 9 free amino acids, of which the threonine and histidine were the major components. The sum of these two acids took up 72.63% of amino acid in big fruit and 70.63% in small fruit. There were 15 hydrolysis amino acids in both big and small fruits, 8 of which were essential to human body, with 33.51% in big fruit and 28.36% in small fruit. In addition, most of hydrolysis amino acid was acidic amino acid, which accounted for 52.58% in big fruit and 49.19% in small fruit.