《秘珍济阴》用药特色感悟

《秘珍济阴》是清代湘籍医家周诒观编纂的一部妇产科专著。从该书遣方用药实例中,感悟周氏之所以用药机圆法活,关键在于其能精研古方遗药思路;强调临产用药时炮制、用量的精谨,乃基于此当子母命悬丝发之际;而擅取生鲜植物为治、化凡为奇的特色,则与他生活在湖湘、奔波于里巷的经历及“既智且仁”的素质密切相关。

Diversity patterns and phylogenetic structure of vascular plants along elevational gradients in a mountain ecosystem, South Korea

Recently, a phylogenetic diversity and community structure analysis as complementary to species-centric approaches in biodiversity studies provides new insights into the processes of community assembly. In this study, we analyzed species and phylogenetic diversity and community structures for woody and herbaceous plants along two elevational transects on Mt. Baekhwa, South Korea. The species richness and phylogenetic diversity of woody plants showed monotonic declining patterns with increasing elevation along all transects, whereas herbaceous plants showed different patterns, such as no relationship and a reversed unimodal pattern, between the study transects. The main drivers of these patterns were climate and habitat variables for woody and herbaceous plants, respectively. In addition, the phylogenetic community structure primarily showed phylogenetic clustering regulated by deterministic processes, especially environmental filtering, such as climate or habitat factors, along the two transects, although herbaceous plants along a transect depicted phylogenetic randomness as a result of a neutral process. Our findings suggest that deterministic and neutral processes may simultaneously control the community structures along small-scale elevational gradients such as local transects, although the deterministic process may be the predominant type.

动植物生鲜物料对鸡精调味料风味的影响

通过对比使用动植物生鲜原料鸡精和使用脱水动植物原料鸡精的GC-MS风味分析结果得出使用新鲜的动植物生鲜物料对提高鸡精产品的总体风味有很重要的意义。结果显示,使用新鲜鸡肉和蛋液的样品比使用脱水鸡肉粉和蛋粉的样品肉风味挥发性物质含量高,加热生成的杂环类化合物的保留较好,样品具有较好的的肉感和饱满感。使用新鲜小葱和大蒜的样品较使用脱水葱粉和蒜粉的样品含有较高含量的体现葱蒜香气的含硫化合物。小葱和大蒜脱水后,含硫化合物有显著的下降。因此,动植物生鲜物料对鸡精类产品的风味有着非常大的贡献。