[Nature-effect transformation mechanism of mulberry leaves and silkworm droppings based on chemical composition analysis].

Starting with the relationship between mulberry leaves and silkworm droppings as food and metabolites, this study systematically compared the chemical components, screened out differential components, and quantitatively analyzed the main differential components based on ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF-MS) and UPLC-Q-TRAP-MS combined with principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA). Moreover, the in vitro enzymatic transformation of the representative differential components was studied. The results showed that(1) 95 components were identified from mulberry leaves and silkworm droppings, among which 27 components only exist in mulberry leaves and 8 components in silkworm droppings. The main differential components were flavonoid glycosides and chlorogenic acids.(2) Nineteen components with significant difference were quantitatively analyzed, and the components with significant differences and high content were neochlorogenic acid, chlorogenic acid, and rutin.(3) The crude protease in the mid-gut of silkworm significantly metabolized neochlorogenic acid and chlorogenic acid, which may be an important reason for the efficacy change in mulberry leaves and silkworm droppings. This study lays a scientific foundation for the development, utilization, and quality control of mulberry leaves and silkworm droppings. It provides references for clarifying the possible material basis and mechanism of the pungent-cool and dispersing nature of mulberry leaves transforming into the pungent-warm and dampness-resolving nature of silkworm droppings, and offers a new idea for the study of nature-effect transformation mechanism of traditional Chinese medicine.

[Literature-based analysis of conversion of components in fermentation process of Sojae Semen Praeparatum].

Based on the systematic retrieval and the reported components of Sojae Semen Nigrum and Sojae Semen Praeparatum, this study conducted in-depth analysis of conversion of components in the fermentation process, and discussed types and possible mec-hanisms of conversion of chemical components, so as to provide the basis for studying technology, medicinal ingredients and quality standards. According to the analysis, there is a certain degree of conversion of nutrients(like protein, sugar, lipid), bioactive substances(like isoflavones, saponins, γ-aminobutyric acid) and other substances(like nucleosides, melanoids, biamines, etc) in the process of fermentation.

[Textual research on "Gui" in Chinese classical prescriptions].

Through consulting the ancient herbs and medical books, combining with modern literature, this paper makes textual research on herbal medicine, and textual research on the name, origin, position and harvest and processing changes of the medicinal herbs in ancient classical prescriptions. According to research, Cinnamon medicinal materials were first listed in the Shennong's Herbal Classic, as the name of "Jungui" and "Mugui". Among them, Jungui has undergone the evolution of "Qungui-Jungui-Tonggui-Jungui". After the Northern and Southern Dynasties, a half-volume fatty "Gui" was added, but the usage of the three was no different. The names of Cinnamomi Ramulus and Cinnamomi Cortex did not appear until the Tang Dynasty, and they were preferably thick-skinned and with no cork cambium, and they were mostly used in the name of "Guixin"; Since the Song and Yuan Dynasties, the medicinal parts of cassia have gradually separated. Cinnamomi Cortex is the trunk bark of sapling or branch bark, the twig is Cinnamomi Ramulus, and the tenderest twig is Liugui, Song Dynasty unified the name as "Guizhi"; After the Ming and Qing Dynasties, Cinnamomi Cortex was used as the trunk bark, and Cinnamomi Ramulus was used as the tender twig; In modern times, the Chinese Pharmacopoeia stipulates that the Cinnamomi Ramulus is the young branch of C. cassia, which is Cinnamomum, and Cinnamomi Cortex was the dried trunk bark. From the plant morphology recorded in the previous herbals and the drawings, combined with the distribution of the origins described in the previous herbals, the mainstream plant used as a medicine in the past generations should be C. cassia, but there are other sect. Cinnamomum plants that are also used in medicine everywhere, such as C. chekiangensis, C. bejolghota, C. wilsonii, etc. Throughout the ages, different plant morphologies and medicinal traits have been used to distinguish different categories. The origins of the past dynasties are mostly present in Guangdong, Guangxi province and Vietnam, and are regarded as authentic. The methods for the harvest and processing of cinnamon medicinal materials are basically the same from ancient to modern times.

[Textual research on Bupleuri Radix in Chinese classical prescriptions].

Through consulting the herbs and medical books of past dynasties, combining with modern literature and field investigation, this paper made textual research on the name, origin, producing area, harvesting and processing of Bupleuri Radix used in the Catalogue of Ancient Classical Prescriptions(the first batch).From Han to the Southern and Northern Dynasties, the source of Bupleuri Radix was a mixture of Bupleurum and Peucedanum, it's hard to define the origin of authentic products.In Tang Dynasty, Caryophyllaceae had been used as Bupleuri Radix. In Song Dynasty, it was clear that the genuine production area of Bupleuri Radix was Yinzhou, its origin was B. corzonerifolium and B. yinchowense.After the Ming Dynasty, B. chinense gradually became the mainstream. It has been confirmed that there were differences in the efficacy between Stellaria dichotoma in Caryophyllaceae and Bupleurum in Umbelliferae, however, the use of S. dichotoma is still attributed to Bupleuri Radix. In the Qing Dynasty, S. dichotoma was distinguished from Bupleuri Radix as another medicine. Among the prescriptions containing Bupleuri Radix included in the Catalogue of Classical Prescriptions in Ancient China(the first batch), the mainstream of genuine Bupleuri Radix should be B. scorzonerifolium and B. chinense. It is suggested that the genuine base of Bupleuri Radix should be selected according to the current resources and industrial development of Bupleuri Radix, and it should conform to the Chinese Pharmacopoeia.

[Textual research on "Zhu" in Chinese classical prescriptions].

Through consulting the ancient herbs and medical books,combining with modern literature and field investigation,this paper makes textual research on herbal medicine,and makes textual research on the name,origin,position and changes of collection and processing of the medicinal herbs in Ancient Classical Prescriptions. " Zhu" wasn't distinguished before the Northern and Southern Dynasties,but the efficacy of the techniques recorded in the documents at that time was similar to that of today's Atractylodis Rhizoma.Tao Hongjing put forward the theory of " red and white" in the Northern and Southern Dynasties. " Cangzhu" and " Baizhu" gradually differentiated,but there was no clear distinction between them. Since Song and Yuan Dynasties, " Baizhu" has been respected and classified in the literature. In Ming Dynasty, " Baizhu" was cultivated and differentiated into different quality specifications according to its growth pattern and origin. Maoshan is the genuine production area of " Cangzhu". The quality of wild " Baizhu" produced in Yuqian city is the best. In modern times,the origins of " Cangzhu" and " Baizhu" were defined according to plant taxonomy. " Zhu" before Song Dynasty was close to Atractylodes lancea, " Baishu" had been respected since the Song Dynasty. So when Song people revised the previous literature,they unified " Zhu" into " Baizhu" and used it for later generations. Its safety and effectiveness have been confirmed,and the wild resources of modern atractylodes are scarce. Therefore,it is suggested that when classical famous prescriptions are developed,the prescription recorded as " Baizhu" does not need to be changed in its origin,that is,A. macrocephala at present or can choose the appropriate basis according to the principle of local righteousness.Textual research shows that the origin of " Cangzhu" in the classical prescription should be A. lancea.

[Textual research on classical prescription of Acorus tatarinowii].

Based on the prescription books of herbs and medical books of all dynasties,this article makes a textual research on the name,origin,position,quality,collection,processing and concocting of Acorus tatarinowii used in the classical prescription,and clarifies the relationship between ancient and modern,so as to provide reference and basis for the development and utilization of the classical famous prescription.According to research,A. tatarinowii has many aliases and is often remembered as " Chang pu" when use as medicine; It has a wide distribution of resources in our country,all over the country have produced and mostly wild,its producing areas there is a trend of migration to the southeast; It is recorded in the ancient books of Chinese herbs that most of its medicinal parts are roots,and to root thin,solid quality,dense,aromatic smell,full taste,chewing less slag of high quality; It is harvested in February,May,August and December,and dried in the shade after harvesting; Its concocting methods are more than 20 species have been recorded; Before the Tang Dynasty,the basis of the medicinal A. tatarinowii was relatively chaotic,through textual research,it is concluded that A. tatarinowii should be the mainstream in all dynasties,and that its quality is superior to that of other species in the same genus.It is recommended to be used in " Kaixin san" and " rehmannia drink".

[Textual research on Chinese herbaceous peony in Chinese classical prescriptions].

In this paper,the name,origin,producing area,harvesting and processing changes of Paeonia lactiflora used in classical prescriptions were studied by textual research of herbal medicine and field investigation. Chinese herbaceous peony wasn' t distinguished before the Northern and Southern Dynasties; Tao Hongjing proposed that there were two kinds of P. lactiflora in the Northern and Southern Dynasties,but they were not clearly defined; since the Song and Yuan Dynasties,the method of distinguishing P. lactiflora by flower color and root color was proposed. In the Ming Dynasty,people put forward the criteria similar to modern ones,that is,to divide red peony and white peony by means of harvesting and processing,and to continue for future generations. Since modern times,different growth patterns and processing methods have been used to classify red peony and white peony. Paeoniae Radix Alba has gradually formed three major cultivation genuine producing areas: Hangzhou,Sichuan and Bozhou,while Paeoniae Radix Rubra in modern times has praised the wild medicinal materials produced in Inner Mongolia,Toronto and other places. According to textual research,Paeoniae Radix Alba was highly praised in Song Dynasty. When people in Song Dynasty revised the previous literature,they changed " Shaoyao" into " Baishao" and continued to use Paeoniae Radix Alba for future generations. Therefore,the origin of P. lactiflora in classical prescriptions before the Song Dynasty should be determined by the combination of prescription function and prescription meaning evolution; After the Song Dynasty,the origins of " Red Paeonia Root" and " White Paeonia Root" in prescriptions are basically the same as those in today's prescriptions,which should be recorded in ancient prescriptions. For the medicinal flavor of " Paeonia Root" recorded in prescriptions after the Song Dynasty,the origins can be determined by functional domination and the evolution of prescriptions.