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1.
Article | IMSEAR | ID: sea-221407

ABSTRACT

This paper discusses the Tribal people of Ranchi District behavior towards online shopping, it also discusses why they prefer online shopping and why not. In recent years, rural markets have acquired significance, as the overall growth of the economy has resulted into substantial increase in the purchasing power of the rural communities. Rural Markets are defined as those segments of overall market of any economy, which are distinct from the other types of markets like stock market, commodity markets or Labor economics. Online shopping or e-shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser. Alternative names are: e-web-store, e-shop, e-store, Internet shop, web-shop, web-store, online store, online storefront and virtual store. The purpose of this study is to analyze the impact of consumer perceptions in regards to online shopping. A sample of 100 (55 males and 45 females) respondents were taken into consideration from tribal people of rural Ranchi District.

2.
China Pharmacy ; (12): 1363-1367, 2023.
Article in Chinese | WPRIM | ID: wpr-974686

ABSTRACT

OBJECTIVE To study the quality of Codonopsis pilosula with different commodity specification grades, and to provide the data support for market transactions, scientific research and clinical use. METHODS According to the classification standard of commodity specification grades of C. pilosula, 17 batches of C. pilosula from different producing areas, origins and commodity specification grades were collected. The contents of tangshenoside Ⅰ, lobetyolin and atractylenolide Ⅲ were determined by HPLC. The contents of alcohol-soluble extracts were determined by hot dipping method stated in general rule 2201 of Chinese Pharmacopeia (part Ⅳ). The contents of polysaccharide were determined by phenol-sulfuric acid method (calculated by D-glucose anhydrous). RESULTS For cultivar of C. pilosula, four specifications and three commodity grades of C. pilosula all contained tangshenoside Ⅰ and lobetyolin; Radix C. pilosula from Shanxi of China and C. pilosula from Wenxian County of China, also contained atractylenolide Ⅲ. In terms of the contents of tangshenoside Ⅰ, lobetyolin and atractylenolide Ⅲ, the content of second class was equivalent to that of first class, even better than the first class, while the content of third class was lower than that of first class and second class; the content of tangshenoside Ⅰ was the highest among the two types of wild C. pilosula. The contents of alcohol-soluble extracts and polysaccharides in first class cultivated C. pilosula were higher than those of second class, and the second class was higher than the third class; wild C. pilosula had low content of alcohol-soluble extracts and polysaccharides. CONCLUSIONS The internal quality of C. pilosula is basically consistent with the classification standard of different commodity specification grades; the content of each indicator in first-class and second-class medicinal herb is high, making them high-quality medicinal herbs.

3.
China Journal of Chinese Materia Medica ; (24): 900-907, 2023.
Article in Chinese | WPRIM | ID: wpr-970561

ABSTRACT

From the perspective of market classification of Cnidii Fructus, this paper revealed the scientific connotation of evaluating the quality grade of Cnidii Fructus by its appearance traits. Thirty batches of Cnidii Fructus in different grades were selected as the research objects. The canonical correlation analysis and principal component analysis(PCA) were used to explore the measurement values of 15 appearance traits and intrinsic content indexes. The results of correlation analysis showed that except the aspect ratio, the 5 appearance trait indexes(length, width, 1 000-grain weight, broken grain weight proportion, and chroma) and 9 internal content indexes(the content of moisture, total ash, acid insoluble ash, osthole, imperatorin, 5-methoxy psoralen, isopimpinellin, xanthotoxin, and xanthotol) showed significant correlation to varying degrees. In addition, there was a significant positive correlation between the first typical variable U_1 composed of appearance traits and the first typical variable V_1 composed of internal content indexes(CR_1=0.963, P<0.01). The results of PCA showed that the classification results of appearance traits for 30 batches of Cnidii Fructus were consistent with the actual information of the samples. Under the same analysis conditions, 30 batches of Cnidii Fructus were reclassified by 9 groups of internal content indexes, and the analysis results were consistent. From the classification standard of the appearance traits of the system study, the statistical results of 6 appearance traits of Cnidii Fructus showed a correlation with grades. There was a good correlation between the appearance and the internal content of Cnidii Fructus, and the appearance quality effectively predicted the level of the internal content. There is a certain scientific basis for the quality classification of Cnidii Fructus by main appearance traits. Appearance classification can replace quality grading to realize the "quality evaluation through morphological identification" of Cnidii Fructus.


Subject(s)
Fruit , Phenotype , Principal Component Analysis , Population Groups
4.
Chinese Herbal Medicines ; (4): 543-553, 2022.
Article in Chinese | WPRIM | ID: wpr-953572

ABSTRACT

Objective: Saposhnikoviae Radix (Fangfeng in Chinese), the roots of Saposhnikovia divaricata, lacks commodity specification and grade standardization in the current market. This study investigated the existing specifications and grades of Saposhnikoviae Radix to provide a standardized scientific reference for its market use. Methods: Based on a textual research of Chinese herbal medicine from the Han Dynasty to the present, medicinal materials of different specifications and grades obtained from Saposhnikoviae Radix in the main producing areas of China were collected and the markets for these materials were investigated. Field investigations were performed in the major producing areas such as Northeast China, Hebei Province, and Inner Mongolia. Four major Chinese herbal medicine markets in China were investigated. Sensory indices were used to categorize the two specifications (wild and cultivated) according to the shape, color, texture, and cross-section. High-performance liquid chromatography was performed to determine the active components. Vernier calipers and measuring tape were used to measure the diameter and length, respectively, of 41 samples. Using Excel and the R Language software, cluster analysis and descriptive statistical analysis were performed to assist in the application of new specifications and grades based on physical characteristics, pharmacological activity, and chemical composition. Results: The two specifications (wild and cultivated) of Saposhnikoviae Radix were divided into three grades each based on the length and diameter. Prim-O-glucosylcimifugin, 5-O-methylvisamminoside, and the length of Saposhnikoviae Radix can be used as a basis for classifying the commodity specifications and grades. The specifications and grade standards of Saposhnikoviae Radix were established based on the following eight aspects: shape, surface characteristics, texture, cross section, taste, prim-O-glucosylcimifugin content, 5-O-methylvisamminoside content and length. Conclusion: The formulation of this standard stipulates the commodity specification level of Saposhnikoviae Radix. It is also suitable for the evaluation of commodity specifications in the process of production, circulation and use of Saposhnikoviae Radix.

5.
China Journal of Chinese Materia Medica ; (24): 4697-4703, 2021.
Article in Chinese | WPRIM | ID: wpr-888174

ABSTRACT

The present study aimed to regulate the market circulation of Caryophylli Flos and formulate standards for commodity specifications and grades of Caryophylli Flos. Market survey was carried out in four major medicinal material markets with 48 samples of Caryophylli Flos collected. The property, 100-seed weight, impurity percentage, moisture, and eugenol content in Caryophylli Flos of different specifications from different producing areas were determined and analyzed. The results showed that 27.1% of the samples surveyed on the markets did not meet the requirements of Chinese Pharmacopoeia(2020 edition). The 100-seed weight and the property are important factors for the classification of Caryophylli Flos specifications. There were significant differences in the property, 100-seed weight, impurity percentage, and eugenol content in Caryophylli Flos samples of different specifications from different producing areas, and also differences in the proportions of different specifications in Caryophylli Flos samples from different producing areas. The African-originated Xiaohong(medium grade) and Guangxi-originated Xiaohong(medium grade) accounted for 70% and 66.7% respectively, the Indonesian-originated Dahong(top grade) for 56.2%. In conclusion, there are many problems in the circulation of Caryophylli Flos at present, mainly including the loss of origin information, no standards for specifications, non-implementation of grade standards, excessive impurities, and no evidence for authenticity identification. According to the classification of Caryophylli Flos specifications in this study, the average eugenol content of Xiaohong is significantly higher than the Dahong by 4.74%.


Subject(s)
China , Drugs, Chinese Herbal/analysis , Indonesia
6.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 171-179, 2021.
Article in Chinese | WPRIM | ID: wpr-906438

ABSTRACT

Objective:To provide a scientific basis for the classification of Phyllanthi Fructus product grades. Method:A total of 30 batches of Phyllanthi Fructus currently available in the market were collected for quantification based on such appearance indexes as diameter, thickness, grain weight, and crust colour (<italic>L</italic><sup>*</sup>, <italic>a</italic><sup>*</sup>, and <italic>b</italic><sup>*</sup> values). The contents of gallic acid, corilagin, chebulagic acid, and ellagic acid were measured by high performance liquid chromatography (HPLC), followed by descriptive statistical analysis (DSA), analysis of variance (ANOVA), and principal component analysis (PCA) to determine the importance of each main index and explore the correlations between the appearance indexes and internal components. The classification standard of Phyllanthi Fructus product grades was formulated, and its scientificity was verified in hepatocelular carcinoma HepG2 cells. Result:The correlation analysis revealed that the crust colour <italic>L</italic><sup>*</sup>, <italic>a</italic><sup>*</sup>, and <italic>b</italic><sup>*</sup> values were significantly negatively correlated with corilagin, chebulagic acid, and ellagic acid (<italic>|r|</italic>>0.5, <italic>P</italic><0.01), but irrelevant to gallic acid (<italic>|r|</italic><0.1). Considering the variable coefficient of each index, PCA results, and the requirement of gallic acid as quality indicator for Phyllanthi Fructus in <italic>Chinese Pharmacopoeia</italic>, the crust colour <italic>L</italic><sup>*</sup>, <italic>a</italic><sup>*</sup>, and <italic>b</italic><sup>*</sup> values and gallic acid content were determined to be the classification indexes. The K-means cluster analysis confirmed that products with crust colour <italic>L</italic><sup>*</sup><44, <italic>a</italic><sup>*</sup><7, and <italic>b</italic><sup>*</sup><10 and gallic acid content >1.6% could be classified into the first class, and those failing to meet the above requirements into the second class. The cell experiment demonstrated that the half-maximal inhibitory concentration (IC<sub>50</sub>) of the first-class product against hepatocelular carcinoma HepG2 cells was lower than that of the second-class product. A colourimetric card was developed based on crust colour <italic>L</italic><sup>*</sup>, <italic>a</italic><sup>*</sup>, and <italic>b</italic><sup>*</sup> values to provide a visual tool for on-site evaluation of Phyllanthi Fructus products. Conclusion:This study has initially established the classification standard of Phyllanthi Fructus product grades, which contributes to guiding price negotiation of Phyllanthi Fructus products based on quality grade and thus ensuring high quality and high price.

7.
China Journal of Chinese Materia Medica ; (24): 3441-3451, 2020.
Article in Chinese | WPRIM | ID: wpr-828427

ABSTRACT

The quality of traditional Chinese medicine tablets is correlated with clinical efficacy and drug safety, and plays a great role in promoting the development of traditional Chinese medicine. However, the existing traditional artificial identification and modern instrument detection in terms of accuracy and timeliness have both advantages and disadvantages. Therefore, how to quickly and accurately identify the quality of traditional Chinese medicine tablets has become a high-profile issue. The purpose of this paper is to explore the feasibility of the application of electronic eye technology in the study of rapid identification of traditional Chinese medicine quality. A total of 80 batches of samples were collected and tested by Fritillariae Cirrhosae Bulbus for traditional empirical identification(M_1) and modern pharmacopeia(M_2). The optical data was collected from electronic eyes, and the chemical metrology was used to establish suitable discrimination models(M_3). Four authenticity and commodity specification models, namely identification analysis(DA), minimum bidirectional support vector machine(LS-SVM), partial minimum two-multiplier analysis(PLS-DA), main component analysis identification analysis(PCA-DA), were established, respectively. The accuracies of the authenticity identification models were 82.5%, 90.0%, 96.2% and 93.8%, while the accuracies of the commodity specification identification models were 89.3%, 96.0%, 90.7% and 97.3%, respectively. The models were well judged, the authenticity identification was based on the final identification model of PLS-DA, and the commodity specification was based on the final identification model of PCA-DA. There was no significant difference between its accuracy and M_1, and the time of determination was much shorter than M_2(P<0.01). Therefore, electronic-eye technology could be used for the rapid identification of the quality of Fritillariae Cirrhosae Bulbus.


Subject(s)
Drugs, Chinese Herbal , Fritillaria , Medicine, Chinese Traditional , Plant Roots , Technology
8.
China Journal of Chinese Materia Medica ; (24): 2091-2102, 2020.
Article in Chinese | WPRIM | ID: wpr-827975

ABSTRACT

Taking Lonicerae Japonicae Flos as an example, the method of "expert consensus of different regions" was used to screen the representative samples and evaluate their commodity grades. The correlation analysis, hierarchical cluster analysis and partial least squares discriminant analysis(PLS-DA) of "commodity grade-appearance characteristic-component content" were carried out to reveal the scientificity of traditional commodity grade of Chinese medicinal material. By referring to the existing literature and the grade investigation from the sample collection regions, 78 "initial grade" samples were screened out from 118 collected samples. Authoritative experts from four regions(n=4) including Linyi(Shangdong province), Bozhou(Anhui province), Anguo(Hebei province) and Beijing were organized to evaluate their commodity grades, separately. Based on the grade consistency rate(R_i≥70%), 69 "local grade" samples were screened out from the "initial grade" samples. Based on the average grade consistency rate ■ "authoritative grade" samples were screened out from the "local grade" samples, including15 first-grade samples, 9 second-grade samples, 11 third-grade samples and 17 fourth-grade samples. For these "authoritative grade" samples, the main appea-rance characteristics were quantified and the contents of 13 components were determined by ultra performance liquid chromatography(UPLC). Furthermore, the total contents of 6 phenolic acids, 4 flavonoids and 3 iridoids were calculated, respectively. The results of correlation analysis showed that 4 appearance characteristics indices were correlated with the commodity grades: color, rate of yellow bars(including blooming flowers), rate of black heads(including black bars), and rate of stems and leaves(including bud debris). Five component content indices were correlated with the commodity grades: chlorogenic acid, isochlorogenic acid C, sweroside, loganin and the total contents of six phenolic acids. Furthermore, chlorogenic acid, loganin and the total contents of six phenolic acids showed significantly negative correlation with the main appearance characteristics, indicating that the appearance characteristics of Lonicerae Japonicae Flos can reflect its internal quality, and these 3 indices can be used as quality markers(Q-markers). The results of hierarchical cluster analysis showed that the samples of four grades were classified into four categories, and the samples with the same grades and the same categories accounted for 80.8% of the total samples, while the samples with the different grades were obviously classified into different categories. The results of PLS-DA analysis showed that the samples of different grades showed obvious intragroup aggregation and intergroup dispersion. The above results indicated that it was feasible to evaluate the traditional commodity grade of Lonicerae Japonicae Flos by the method of "expert consensus of different regions". For the evaluation of traditional commodity grade of Chinese medicinal material, the samples should be representative, expert conclusions should have enough consensuses, and grade determination should be authoritative. As the crystallization of clinical experience, traditional commodity grade can scientifically reflect the internal quality of Chinese medicinal material.


Subject(s)
Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Flowers , Lonicera , Quality Control
9.
Estilos clín ; 24(1): 12-21, Jan.-Apr. 2019.
Article in Portuguese | LILACS, INDEXPSI | ID: biblio-1039831

ABSTRACT

Um dos princípios que regem o capitalismo e a sociedade de consumo é o de que as mercadorias devem ser rapidamente consumidas para que os consumidores acreditem estar sempre precisando de novas. Como bem percebeu Lacan, essa lógica é oposta à do desejo que tem como objeto o próprio desejar. Nesses termos, para que a escola não seja incorporada à lógica da sociedade de consumo, a partir das análises de Lajonquière sobre as relações entre a mestria e a tomada da palavra, este texto sugere a possibilidade de uma escola que abra uma perspectiva para o desejo de desejar.


Uno de los principios que rigen el capitalismo y la sociedad de consumo es el de que las mercancías deben ser rápidamente consumidas para que los consumidores crean estar siempre necesitando de nuevas mercancías. Como bien percibió Lacan, esa lógica es opuesta a la del deseo, cuyo objeto es el propio desear. En esos términos, para que la escuela no sea incorporada a la lógica de la sociedad de consumo, a partir de los análisis de Lajonquière sobre las relaciones entre la maestría y la toma de la palabra, este texto sugiere la posibilidad de una escuela que abra una perspectiva para el deseo de desear.


One of the principles governing capitalism and consumer society is that commodities must be consumed quickly so that consumers believe that they are always in need of new commodities. As Lacan understood, this logic is opposite to the logic of desire, whose object is desire itself. In these terms, to prevent the school from being incorporated into the logic of the consumer society, and drawing on Lajonquière's analyses of the relations between the mastery and the seizure of speech, this paper suggests the possibility of a school that opens a perspective to the desire to desire.


Subject(s)
Psychoanalysis/education , Schools , Teaching/trends
10.
China Journal of Chinese Materia Medica ; (24): 2459-2466, 2019.
Article in Chinese | WPRIM | ID: wpr-773239

ABSTRACT

This paper is aimed to study the commodity specification and grade standard of Galla Chinensis,for standardizing market order and guide the market circulation,and provide a basis for standardization of Galla Chinensis. With 33 samples of Galla Chinensis from market as the object of the research,the herbal textual research and market research were carried out. Then the grading indicator were selected by the descriptive statistics,principal component analysis and cluster analysis,combining with production practice,the commodity specification and grade standard of Galla Chinensis were set out. The data of moisture,ash,gallic acid as the internal index were used to analyze the relationship between the quality difference between grades and the appearance characters and the intrinsic composition. Herbal textual research and market research found that the high quality of Galla Chinensis characterized with large,complete,wall thick,grayish brown characteristics,and Galla Chinensis could be divided into gallnuts and horned gall. Through principal component analysis and cluster analysis,combining actual production and herbal record,screening,the length,diameter,single weight,the number of 500 g were determined as 4 grading indicators,the commodity specification was divided into two: gallnuts and horned gall,the grades was divided into two: selected goods and mixed goods. The result of correlation analysis showed there was no significant correlation between the internal index and the appearance characters of Galla Chinensis. The result of multiple comparison showed that the ash content of the selected goods was smaller than that of the mixed goods,but it did not reach significant. The content of gallic acid of the selected goods and the mixed goods of gallnuts were higher than selected goods of horned gall,and higher than mixed goods of horned galls. Using the length,diameter,single weight,the number of 500 g as the appearance characters index. Combining with the herbal textual research and market research,we have divided two specifications and two grades for the commodity specification and grade standard of Galla Chinensis,which can provide a basis for industry standards and national standards.


Subject(s)
Drugs, Chinese Herbal , Reference Standards , Gallic Acid , Plant Tumors , Quality Control
11.
China Journal of Chinese Materia Medica ; (24): 2996-3001, 2019.
Article in Chinese | WPRIM | ID: wpr-773198

ABSTRACT

Through the records of herbal and market investigations,the samples collected from different market and origin were analyzed,and the appearance character indexes were determined in order to revise the commodity specification and grade standard of Dipsaci Radix combined with production practice. This is also to analyze association of the appearance with quality different of intrinsic components. The investigation results indicated the root's long and thick was better,and atrovirens of fracture surface,there are most of the market is dominated by the ungraded goods. Through principal component analysis,variance analysis and cluster analysis,combining with the feasibility of actual operation and herbal record,the length,middle diameter and phloem color were filtrated and the specification was divided into 2 ranks: the selection and ungraded goods,and the grade was divided into 2 ranks for the selection goods: big,small selected goods. Moreover,there were no significant correlation between the appearance and the intrinsic quality index of Dipsaci Radix,the content of extractum were significantly positive correlation with the moisture,but had extremely negative correlation with the total ash. Multiple comparisons indicated that the content of the moisture,extractum and asperosaponin VI of the selected goods were higher than the ungraded goods,while the total ash content were lower,and they hasn't significant difference. The commodity specification and grade standard of Dipsaci Radix as a basis provide commodity specification and grade standard of communities and standardizing market trade order.


Subject(s)
Cluster Analysis , Dipsacaceae , Chemistry , Drugs, Chinese Herbal , Reference Standards , Plant Roots , Chemistry , Plants, Medicinal , Chemistry , Principal Component Analysis
12.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 109-113, 2019.
Article in Chinese | WPRIM | ID: wpr-801873

ABSTRACT

The quality constant evaluation method was applied to the grading evaluation of Albiziae Cortex decoction pieces. The morphological and component indexes of 12 batches of the decoction pieces were measured, their quality constants were calculated and graded. The results showed that the quality constant ranged from 0.041 to 0.167. If the percentage quality constant ≥ 80%was the first-grade decoction pieces, <80%and ≥ 50%was the second-grade decoction pieces, <50%was the third-grade decoction pieces; the quality constant of the first-grade decoction pieces was ≥ 0.133 6, the second-grade decoction pieces was ≥ 0.083 5 and <0.133 6, and the third-grade decoction pieces was <0.083 5. In this paper, the authors further applied the quality constant evaluation method of skin piece in the grading evaluation of Albiziae Cortex decoction pieces, which proved that the method was reasonable and scientific, and it can provide a reference for the quality grading of this decoction pieces.

13.
Acta Pharmaceutica Sinica ; (12): 1082-1087, 2019.
Article in Chinese | WPRIM | ID: wpr-780171

ABSTRACT

The grading and quality analysis methods for different commercial Glycyrrhiza Polygalae Radix slices were established. The qualities of different grade samples were analyzed and compared, in order to provide useful information for the formulation of the grading standards of Glycyrrhiza Polygalae Radix slices. A total of 34 batches of Glycyrrhiza Polygalae Radix slice samples collected from 12 companies were divided into two grades: first-grade (diameter ≥ 3.0 mm) and second-grade (diameter < 3.0 mm). Thin-layer chromatography (TLC), multi-component content determination and fingerprint analysis were used to analyze the qualities of different grades of Glycyrrhiza Polygalae Radix slices, and the fingerprints were statistically analyzed using partial least squares-discriminant analysis (PLS-DA) and orthogonal partial least squares-discriminant analysis (OPLS-DA). The results showed that the established TLC method can simultaneously identify three major types of components, including sugar esters, xanthones, and saponins in Glycyrrhiza Polygalae Radix slices, and has obvious advantage compared to the existing methods for its rich information, low cost, and easy or safe operation. The multi-component determination showed that the contents of three index components (polygalaxanthone Ⅲ, 3,6'-disinapoyl sucrose and tenuifolin) in the first-grade products of Glycyrrhiza Polygalae Radix slices were lower than those in the second-grade products. The results of PLS-DA and OPLS-DA indicated significant differences were observed between the first-grade and second-grade products, with sibiricose A5, sibiricose A6, polygalaxanthone Ⅲ, 3,6'-disinapoyl sucrose and tenuifoliside A being identifies as the major differentiate markers.

14.
Chinese Journal of Information on Traditional Chinese Medicine ; (12): 6-10, 2018.
Article in Chinese | WPRIM | ID: wpr-706981

ABSTRACT

Through literature review and field investigation, the commodity specification, grade standard and application situation of radix and rhizoma of Chinese materia medica were analyzed, and research methods and achievements of radix and rhizoma of Chinese materia medica were concluded, the existing problems of radix and rhizoma of Chinese materia medica were analyzed and concluded, and proposed identification methods fully referring Chinese methods of radix and rhizoma of Chinese materia medica. By combining modern planting and initial processing methods, classification indicators were specifically quantified, grade standard radix and rhizoma of Chinese materia medica conforming to current pharmacopoeia and meeting practical operation was designed, which were in accordance with market demand for high quality and high price standard system.

15.
Ciênc. rural ; 47(4): e20160647, 2017. graf
Article in English | LILACS | ID: biblio-839782

ABSTRACT

ABSTRACT: At the end of the 20th and early 21st century, agricultural systems incorporated definitively a new mission: to generate goods for a world population that continues to grow and whose way of life demand food with low environmental impact. Soybean is the main raw material for the production of biodiesel in Brazil, accountably responsible for 82.4% of the total produced between 2006 and 2013. The Brazilian state of Rio Grande do Sul (RS), which is formed by the Pampa and the Atlantic forest biomes, was responsible for 35.7% of the country's biodiesel production in the referred period. The aim of this paper was to verify the impact of the increased area of soybean cultivation in land use in Rio Grande do Sul State, in the period between 1990 and 2015, considering separately its two biomes (Pampa and Atlantic Forest) original areas, using both census dataset and satellite images. We used the period from 1990 to 2000 as before commodity rising price (BCRP) and the period from 2000 to 2013 as commodity rising price (CRP). The 505,162 ha from Atlantic Forest biome and 1,192,115ha from Pampa biome were added to soybean production in the CRP period. In the Atlantic Forest, this enlargement occurred in the border of the main production area, while in Pampa biome conversion of natural grassland to crop land was the main reason for the large increment in the cultivated area.


RESUMO: No final do século XX e início do século XXI, os sistemas agrícolas incorporaram definitivamente uma nova missão: gerar energia para uma população mundial que continua a crescer e que demanda por seu modo de vida, não só alimentos, mas também, cada vez mais energia, principalmente, energia com baixo impacto ambiental. A soja permaneceu a principal matéria-prima para a produção de biodiesel no Brasil, no período de 2006 a 2013, em que foi responsável por 82,4%, sendo o estado do RS responsável por 35,7% do total da produção brasileira de biodiesel. O objetivo deste trabalho é verificar o impacto do aumento da área de cultivo de soja no uso da terra no Rio Grande do Sul, no período entre 1990 e 2015. Considera-se, separadamente, as áreas originais de seus dois biomas (Pampa e Mata Atlântica), usando o conjunto de dados do IBGE e imagens de satélite. Utilizou-se o período de 1990 a 2000 como o período anterior ao da suba de preços de commodities (BCRP) e, o período de 2000 a 2013 como período de aumento do preço das commodities (CRP). Um total de 505.162ha do bioma Mata Atlântica e de 1.192.115ha do bioma Pampa foram incorporados à produção de soja no período CRP. No bioma Mata Atlântica, o aumento ocorreu nos limites da área cultivada, enquanto que no bioma Pampa através da conversão da área com pastagem nativa.

16.
China Journal of Chinese Materia Medica ; (24): 1646-1651, 2017.
Article in Chinese | WPRIM | ID: wpr-350133

ABSTRACT

"Assessing the quality by distinguishing features of traditional Chinese medicinal materials" is a characteristic quality evaluation system of traditional Chinese medicine, and it is also the basis of "Rating according to characters and setting the price by the grade" on the market. Astragali Radix was regarded as a famous traditional Chinese medicine (TCM), and this paper has carried out herbal textual research on the development and formation of the concept, "assessing the quality by distinguishing features of traditional Chinese medicinal materials", of Astragali Radix. The authentic medicine producing areas of Astragalus in China have experienced a great change, Gansu , Sichuan and adjacent areas before the Tang Dynasty; Shanxi during the Tang and Song Dynasty. The concept, "assessing the quality by distinguishing features of traditional Chinese medicinal materials", of Astragali Radix was formed in the Song and Ming Dynasty and still used today, which described as that the shape is "straight as an arrow"; the texture is "soft as cotton"; the section looks like" gold well and jade hurdle"; it was sweet in taste and has beany flavor. The system, "assessing the quality by distinguishing features of traditional Chinese medicinal materials", of Astragali Radix has undergone the adjustments from "true or false" to "good or bad", advance with the times, pick out the advantages from others and absorb the experience of traditional identification actively. Besides, it always returns to laconism from erudition and was summarized highly. Assessing the quality by distinguishing features of traditional Chinese medicinal materials and commodity specifications have the same root, so the former has reference meaning to revise the latter.

17.
Chinese Traditional and Herbal Drugs ; (24): 2538-2547, 2017.
Article in Chinese | WPRIM | ID: wpr-852728

ABSTRACT

The quality of Chinese herbal medicine is an important prerequisite for ensuring clinical efficacy and safety. The current commodity specification of medicinal herbs is the summary of the traditional Chinese medicine practitioners' experience of "assessing the quality by distinguishing the features of traditional Chinese medicinal materials". However, with the continuous introduction and acclimatization and large-scale cultivation of wild medicinal herbs, the traits of some medicinal herbs have changed greatly compared with the previous one, resulting in that the market circulation specifications of these medicinal herbs is inconsistent with the current commodity specification. In this paper, by consulting the modern monographs, literatures and so on, we analyzed the market circulation specifications being implementing of Polygalae Radix, combined with the modern quality evaluation methods to explore the effects of strains and base, origin and climate, growth duration and harvesting period and medicinal parts on the quality of P. tenuifolia. This paper reveals the correlation between the traits and quality of Polygalae Radix, furthermore, provides the theoretical basis for setting up the commodity specifications of Polygalae Radix, and determines the future research direction of P. tenuifolia quality assessment.

18.
Chinese Traditional and Herbal Drugs ; (24): 3833-3840, 2017.
Article in Chinese | WPRIM | ID: wpr-852535

ABSTRACT

Objective To establish the main component analysis method of commodity grade Polygala tenuifolia, and to explore the correlation between the grade character of P. tenuifolia and the main chemistry. Methods P. tenuifolia of four markets were determined by high performance liquid chromatography (HPLC) to analyze the different level of medicine and explore the correlation between commodity grade and composition for P. tenuifolia. Results The main components determination of P. tenuifolia in different market grades were not completely consistent with the grade of commodity. Conclusion There are certain limitations of the commodity grading standards for P. tenuifolia in the medicinal materials market. It is necessary to establish a new grade quality standard for accurately evaluating the quality of P. tenuifolia. This study also provides some reference for the comprehensive quantitative evaluation of P. tenuifolia.

19.
Chinese Traditional and Herbal Drugs ; (24): 4578-4583, 2017.
Article in Chinese | WPRIM | ID: wpr-852440

ABSTRACT

Farfarae Flos, one of the important herbal drugs in Chinese materia medica (CMM), is commonly used to in the clinical and pharmaceutical industry of CMM. The quality of Farfarae Flos is closed related with its safety and efficacy in the clinic. In this review, the previous studies on the quality evaluation of Farfarae Flos were summarized and analyzed from morphological identification, microscopic identification, thin-layer chromatography, physicochemical analysis, fingerprinting, commodity specification and grade, etc, which provides the necessary reference and scientific basis for improving the quality standards of Farfarae Flos.

20.
China Journal of Chinese Materia Medica ; (24): 3733-3740, 2016.
Article in Chinese | WPRIM | ID: wpr-307093

ABSTRACT

The agronomic traits (plant height, root diameter, root length, first lateral root height, lateral root amount, root weight) of 18 Polygala tenuifolia samples with different agronomic traits were analyzed, respectively. HPLC was used to analyze three main characteristic components including tenuifolin, polygalaxanthone Ⅲ, and 3,6'-disinapoyl sucrose. At last, the correlation between six agronomic traits and three main characteristic components were analyzed by scatter plot. We found no significant correlation between root diameter and three main characteristic components. There were no obvious correlations between tenuifolin and the remaining five agronomic traits. Short root length and first lateral root height as well as high lateral root amount resulted in high levels of polygalaxanthone Ⅲ in P. tenuifolia samples. High levels of 3,6'-disinapoyl sucrose were observed in P. tenuifolia samples with longer root. So, the current commodity criteria and traditional breeding of P. tenuifolia did not conform to pharmacopoeia standards, which excellent medicinal materials should have high contents of the main characteristic components. It was urgent to revise the current commodity criteria and breeding methods.

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