用气相色谱(GC)分析了紫苏油的脂肪酸组成,用高效液相色谱(HPLC)测定了紫苏油中维生素E含量,并对紫苏油的理化性质进行了研究。结果表明,紫苏油中不饱和脂肪酸含量为93.707%,其中亚麻酸含量最高,为60.752%,亚油酸和油酸含量分别为15.761...用气相色谱(GC)分析了紫苏油的脂肪酸组成,用高效液相色谱(HPLC)测定了紫苏油中维生素E含量,并对紫苏油的理化性质进行了研究。结果表明,紫苏油中不饱和脂肪酸含量为93.707%,其中亚麻酸含量最高,为60.752%,亚油酸和油酸含量分别为15.761%和17.194%;紫苏油中维生素E的总含量为500.9 m g/kg;紫苏油比重为0.928 8,折光指数为1.481 7,酸价为2.9 m g/g,碘价为1 980 g/kg,皂化值为190.7 m g/g,不皂化物为0.6%,水分及挥发物为0.07%,过氧化值为3.7 mm o l/kg。紫苏油是一种极具开发潜力的营养保健油。展开更多
We investigate some relations between two kinds of semigroup regularities, namely the e-property and the eventual continuity, both of which contribute to the ergodicity for Markov processes on Polish spaces.More preci...We investigate some relations between two kinds of semigroup regularities, namely the e-property and the eventual continuity, both of which contribute to the ergodicity for Markov processes on Polish spaces.More precisely, we prove that for Markov-Feller semigroup in discrete time and stochastically continuous MarkovFeller semigroup in continuous time, if there exists an ergodic measure whose support has a nonempty interior,then the e-property is satisfied on the interior of the support. In particular, it implies that, restricted on the support of each ergodic measure, the e-property and the eventual continuity are equivalent for the discrete-time and the stochastically continuous continuous-time Markov-Feller semigroups.展开更多
文摘用气相色谱(GC)分析了紫苏油的脂肪酸组成,用高效液相色谱(HPLC)测定了紫苏油中维生素E含量,并对紫苏油的理化性质进行了研究。结果表明,紫苏油中不饱和脂肪酸含量为93.707%,其中亚麻酸含量最高,为60.752%,亚油酸和油酸含量分别为15.761%和17.194%;紫苏油中维生素E的总含量为500.9 m g/kg;紫苏油比重为0.928 8,折光指数为1.481 7,酸价为2.9 m g/g,碘价为1 980 g/kg,皂化值为190.7 m g/g,不皂化物为0.6%,水分及挥发物为0.07%,过氧化值为3.7 mm o l/kg。紫苏油是一种极具开发潜力的营养保健油。
基金supported by National Natural Science Foundation of China (No.11731009, No.12231002)Center for Statistical Science,Peking University。
文摘We investigate some relations between two kinds of semigroup regularities, namely the e-property and the eventual continuity, both of which contribute to the ergodicity for Markov processes on Polish spaces.More precisely, we prove that for Markov-Feller semigroup in discrete time and stochastically continuous MarkovFeller semigroup in continuous time, if there exists an ergodic measure whose support has a nonempty interior,then the e-property is satisfied on the interior of the support. In particular, it implies that, restricted on the support of each ergodic measure, the e-property and the eventual continuity are equivalent for the discrete-time and the stochastically continuous continuous-time Markov-Feller semigroups.
