摘要
以陕西商洛丹参GAP基地丹参种子为材料,用气相色谱法分析丹参种子中的脂肪酸组分,用VS-KT-P型自动凯氏定氮仪分析种子蛋白质总含量及蛋白质组分,用121M型氨基酸分析仪测定种子所含氨基酸的种类,以明确丹参种子中脂肪和蛋白质的利用价值.结果表明:丹参种子脂肪中的不饱和脂肪酸含量高达88.1%,其中亚麻酸、亚油酸和油酸等不饱和脂肪酸分别占总油脂的28.84%、37.43%和22.03%,而且,亚麻酸和亚油酸等多不饱和脂肪酸含量(66%)明显高于单不饱和脂肪酸含量(22%),说明其脂肪酸的组成不饱和程度高.丹参种子中蛋白质总含量为14.46%,其中麦谷蛋白含量最高,占蛋白质总量的72.57%,其余依次为清蛋白17.03%、醇溶蛋白6.09%、球蛋白4.31%;丹参种子蛋白质中的必需氨基酸(EAA)占氨基酸总量(TAA)的59.2%,其中赖氨酸的氨基酸比值系数分(SRC)为88.91,其它必需氨基酸SRC接近100.结果说明丹参种子具有一定的营养价值和保健作用.
This preliminary study was carried out to evaluate nutritional use of Salvia rniltiorrhiza seed protein and fattiness which provided from GAP base of Shangluo,Shaanxi. We measured the seed total and component protein contents by Kjeltec VS-KT-P Protein Analyzer,amino acid component by 121M Amino Acid Analyzer and fatty acid component by gas chromatography. The results showed that total protein content was 14. 46%, glutenin was 72. 57% which is the highest in the protein components, albumin was 17.03% ,hordein was 6.09% ,and globin was 4.31%. The EAA（essential amino acid） was 59.2% among the TAA（total amino acid）,the SRC of the most EAA was close to 100 except lysine was 88.91. The unsaturated fatty acid content in the seeds was 88.1% and the components of thcm were flax acid（28.84%）, sub-oleic acid（37.43%） and oleic acid（22.03%）. We also found a fact that the content of PUFA（polyunsaturated fatty acid） was 66% and obviously higher than MUFA（monounsaturated fatty acid） which was 22%. Those results gave us a hint that Salvia miltiorrhiza seed have a great nutritional value and health care protection to human.
出处
《西北植物学报》
CAS
CSCD
北大核心
2008年第9期1899-1903,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
陕西省科技攻关(2002K11-G8-04)
国家科技部十一五"科技支撑计划(2007BAD79B06)
天士力植物药业有限公司基金(TSL01002)
关键词
丹参种子
蛋白质
必需氨基酸
不饱和脂肪酸
营养价值
Danshen （Salvia miltiorrhiza Bge. ） seeds
protein
amino acid
fat
nutritious value
作者简介
李绍军（1977-）男，硕士，讲师，主要从事植物生理学、细胞生物学研究。E-mail：lsi-sci@tom．com
通讯作者：舒志明，主要从事中药材GAP研究。E-mail：shuzhiming2298@yahoo．com．cn
