摘要:
为了比较不同品系百香果中的氨基酸含量及组成,利用氨基酸自动分析仪对5种百香果果汁中氨基酸成分及含量进行检测与营养价值评价,同时对氨基酸组成及含量进行差异分析及聚类分析。结果表明,5个品系百香果均含有17种氨基酸,‘芭乐味黄金果’氨基酸总量TAA (977.03 mg·100 g-1)、必需氨基酸EAA (268.14 mg·100 g-1)和儿童必需氨基酸CEAA (63.26 mg·100 g-1)含量均为最高,和‘实生株系紫果’达差异极显著水平(P<0.01);‘实生株系紫果’EAA/NEAA (42.13%)、EAA/TAA (29.63%)和氨基酸比值系数分SRC (72.61)均最高。百香果的SRC值为64.49~72.61,第一限制氨基酸为甲硫氨酸+胱氨酸(Met+Cys)。以TAA、EAA、呈味氨基酸等指标进行系统聚类分析,将5个品系百香果氨基酸聚类为2类。第1类为‘芭乐味黄金果’,其特征为氨基酸总量、必需氨基酸、儿童必需氨基酸、鲜味氨基酸、苦味氨基酸、药用氨基酸、支链氨基酸和芳香族氨基酸均为最高;第2类为‘台农’、‘紫香’、‘满天星’和‘实生株系紫果’。
Abstract:
In order to compare the amino acid components in different kinds of passion fruit,the amino acid composition and nutritional value of 5 passion fruit juice were analyzed by an automatic amino acid analyzer,and significance analysis and cluster analysis were performed to compare their differences. The results indicated that 17 amino acids were found in all passion fruit samples,‘Guava Taste Golden Fruit’contains the highest amounts of TAA(977.03 mg·100 g-1),EAA(268.14 mg·100 g-1)and CEAA(63.26 mg·100 g-1),which was significantly higher than ‘Shi Sheng Zhu Xi Zi Guo’. In addition,EAA/NEAA(42.13%),EAA/TAA(29.63%)and SRC(72.61)of ‘Shi Sheng Zhu Xi Zi Guo’ were the highest. The score of ratio coefficient(SRC)of amino acids was 64.49~72.61,and the first limiting amino acids in passion fruit were methionine and cystine. The 5 passion fruits were classified into 2 categories by using cluster analysis based on the TAA,EAA and delicious amino acid etc. ‘Guava Taste Golden Fruit’was classified as one category in view of containing of the highest amounts of TAA,EAA,CAA,FLA,BIA,MEA,BCA and ArAA. ‘Tai Nong’,‘Zi Xiang’,‘Man Tian Xing’and ‘Shi Sheng Zhu Xi Zi Guo’were classified as the other one category.
百度学术
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