This article applies CMS model and selects the data about exports of agricultural products to all the other members of Shanghai Cooperation Organization (SCO) except for China from 1998 to 2018 to decompose the influencing factors of exports of agricultural products from China to all the other members of SCO. The results show that the competitiveness effects plays an important role in promoting the growth of exports while structural change effects is the inhibition effect.
This article analyzes the trade of agricultural products between China and Kazakhstan from the perspective of China's imports. It selects the data of China's imports of agricultural products from Kazakhstan from 1998 to 2018, and divides it into four stages based on fluctuations, and analyzes the factors affecting agricultural imports by constructing a CMS model. The result is that the structural effect in
This article applies the modified CMS model and selects the data about exports of China’s agricultural products to Kazakhstan from 1998 to 2019 according to SITC (Rev.3) so as to make an empirical analysis of the factors influencing the growth of China’s agricultural products exports to Kazakhstan based on both the overall and classification perspectives. The results show that the structural change effects promoted the growth of China’s agricultural products exports to Kazakhstan before the “Belt and Road” initiative was proposed, followed by the inhibiting effect. The competitiveness effect is inhibitory, and then it is promoting. The interaction effects before and after the “Belt and Road” initiative was proposed are both inhibitory.
Crocus sativus L. is commonly used as functional food and medicinal herb in traditional Chinese medicine. In this study, the spectrum–effect relationship was established between HPLC fingerprints and in vitro antioxidant activity of saffron to improve the quality evaluation method of saffron. The fingerprints of 21 batches of saffron collected from different regions were assessed, and the data were further analyzed by chemometric methods, including similarity analysis, hierarchical clustering analysis, principal component analysis, and orthogonal partial least squares discriminant analysis. The spectrum–effect relationship between fingerprints and antioxidant effect of saffron was analyzed by grey relational analysis and partial least square methods to figure out the antioxidant component of saffron. Thirteen common peaks of 21 batches of saffron were included in the analysis, and peak 3 (picrocrocin), peak 7 (crocin I), and peak 10 (crocin II) were identified as the main active components responsible for antioxidant efficacy. Besides, a multi-index quality control method was developed for simultaneous determination of these three antioxidant components in saffron. Taken together, this study provided new strategies for the quality control and the development of new bioactive products of saffron in the future.
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