pitaya; Seed kernel; Fatty acid; Amino acid-火龙果种仁脂肪酸和氨基酸的分析

火龙果种仁脂肪酸和氨基酸的分析 潘艳丽,芮汉明,林朝朋 　

　

分别用GC/MS分析仪和氨基酸自动分析仪分析了火龙果种仁的脂肪酸和氨基酸的组成成分。结果表明火龙果种仁的不饱和脂肪酸含量较高, 为80.83%;火龙果种仁的必需氨基酸含量为24.38%。
【作者单位】：华南理工大学食品与生物工程学院 广州510641 (潘艳丽;芮汉明);华南理工大学食品与生物工程学院 广州510641(林朝朋)
【关键词】：火龙果;种仁;脂肪酸;氨基酸
【分类号】：TS255
【DOI】：cnki:ISSN:1007-2764.0.2004-01-030
【正文快照】：

　 　火龙果是仙人掌科、三角柱属植物,橄榄状果形,鲜红色外衣亮丽夺目,硕大的果

实每个重500~1200g。果肉雪白或血红, 甜而不腻,清淡中有一点芬 芳,胜似哈密瓜。

果内有数千粒芝麻状黑色小种子[1]。它还有较高的食疗价值, 有降血压、降血脂、

解毒、滋肺、明目、养颜之功效,对便秘和糖尿病也有疗效 [2]。

每个火龙果含种仁7g左右,种仁形似芝麻,比芝麻饱满,每一千粒种仁质量大约为1.131g。

1 材料和方法

1.1 样品 来源:越南,购于广州百佳超市,重量在500g左右 1.2 GC/MS分析 GC条件:

色谱柱为DB-5 30m×0.25mm,柱温60℃,恒温8min,以10℃/min升至180…

Analysis of Fatty Acid and Amino Acid in the Seed Kernel of White Pitaya P an yan-li; Rui han-ming; Lin chao-peng (College of Food and Biological Engineering; South China Univ. of Tech.; Guangzhou 510640)

　The composition of fatty acid and amino acid in the seed kernel of white pitaya was analyzed by GC-MS technique and amino acid automatic analysis apparatus respectively。The content of unsaturated fatty acid was 80.83% and the content of necessary amino acid was 24.38%。

【Keyword】：White pitaya; Seed kernel; Fatty acid; Amino acid

Determination and Evaluation of the Nutritive Composition in the Seed Kernel of White Pitaya Pan Yan-li Rui Han-ming Lin Chao-peng (College of Food and Biological Engineering; South China Univ. of Tech.; Guangzhou 510640;Guangdong;China) 　The nutrition composition in the seed kernel of white pitaya was analyzed. The results show the following contents: 32.02% (mass fraction, the same below) of fat,22.06% of protein,21.03% of starch,10.35% of rough fiber,5.80% of moisture,3.18% of ash and 1.75% of total sugar. The amino acid and fatty acid compositions of the protein in the seed kernel were also analyzed, showing 80.83% of unsaturated fatty acid content in fatty acid, and in unsaturated fatty acid,54.43% of linoleic acid content——the highest of all.